Abstract: The present disclosure provides a method (100) for replacing a section of conductor in poly phase power transfer line. The method includes a first step of erecting a plurality of fiber reinforced polymer support structure (106). The method includes another step of installing one or more temporary conductors (108) between the plurality of fiber reinforced polymer support structure (106). The method includes yet another step of electrically connecting two ends of the section of conductor of the line needing-replacement with two ends of the one or more temporary conductors (108). The method includes yet another step of diverting current. The method includes yet another step of replacing the section of conductor of the line needing-replacement with a new section of conductor. The method includes yet another step of diverting current flowing through the one or more temporary conductors (108) back to the new section of conductor. To be published with Fig. 1A
, Description:METHOD FOR LIVE RECONDUCTORING OF POWER CONDUCTORS
TECHNICAL FIELD
[0001] The present invention relates to the field of high voltage power transmission systems, and in particular relates to a method for replacing conductors in a high voltage poly phase power transmission line.
BACKGROUND
[0002] Over the years, overhead power transmission systems have been widely used for transmission of electrical energy across long distances. In general, these overhead power transmission systems include conductors stringed on transmission towers, poles and other electrical and mechanical apparatus. Typically, the electrical energy or power is provided to households, workplaces, manufacturing facilities, and other majority of users who are often located quite a distance away from sources of electrical power. In order to deliver electrical power from the source of generation to the power consumers, large, high-capacity, high-voltage power lines are employed. The conductors are comprised of long wires supported on large support structures such as towers or power poles. Sometimes these lines have to be replaced without giving load shutdown or with minimal load shutdown during maintenance or uprating /Upgrading the line.
[0003] Generally maintenance on power lines or uprating or upgrading the lines requires that the power be shut off before the line can be worked on. Shutting off the power creates a disruption of power delivery to customers. To provide consumers power while a particular line is being worked on, the load may be shifted to temporary power lines to deliver the power to the end user. Unfortunately, This method is adopted as shifting power to other transmission lines is not always possible because redundant systems may not exist, or transmission lines may already be operating at or near capacity level and not able to deliver the required power. Accordingly, it is desirable to provide a method and any accompanying system necessary to allow high voltage power transmission lines to be worked on, replaced or maintained without requiring power to stop being delivered or diverted over to other lines.
[0004] In light of the above stated discussion, there is a need for a system that overcomes the above stated disadvantages.
OBJECT OF THE DISCLOSURE
[0005] A primary object of the present disclosure is to provide a method for replacing conductors in a high voltage power transmission line.
[0006] Another object of the present disclosure is to provide the method for replacing conductors without interrupting power supply.
[0007] Yet another object of the present disclosure is to provide the method for replacing conductors with increased safety.
[0008] Yet another object of the present disclosure is to provide the method for replacing conductors with reduced cost.
[0009] Yet another object of the present disclosure is to provide the method for replacing conductors in reduced time.
SUMMARY
[0010] In an aspect, the present disclosure provides a method for replacing a section of conductor of a line needing-replacement in poly phase power transfer line. The method includes a first step. The first step includes atleast one of step a or step b. The step a includes erecting a plurality of fiber reinforced polymer support structure near to a plurality of transmission structures. The step b includes installing one or more temporary support fixtures on one or more of the plurality of transmission structure. The plurality of fiber reinforced polymer support structures are of fiber reinforced polymer composite. The one or more temporary support fixtures are made of one of metal, fiber reinforced polymer or insulated material. The method includes another step of installing one or more temporary conductors between the plurality of fiber reinforced polymer support structure. The method includes yet another step of electrically connecting line needing a first end of conductor installed between the plurality of transmission structure with a first ends of the one or more temporary conductors. The method includes electrically connecting a second end of conductor installed between the plurality of transmission structure with a second ends of the one or more temporary conductors. The method includes yet another step of diverting current flowing though the section of conductor of the line needing-replacement to the one or more temporary conductors. The diverting disconnects the section of the line needing replacement from corresponding remaining line. The method includes yet another step of replacing the section of conductor of the line needing-replacement with a new section of conductor. The method includes yet another step of diverting current flowing through the one or more temporary conductors back to the new section of conductor. The sections of conductor of the line needing-replacement are replaced without interrupting power supply in any line of poly phase power transfer line.
STSTEMENT OF DISCLOSURE
[0011] The present disclosure provides a method for replacing a section of conductor of a line needing-replacement in poly phase power transfer line. The method includes a first step. The first step includes atleast one of step a or step b. The step “a” includes erecting a plurality of fiber reinforced polymer support structure near to a plurality of transmission structures. The step “b” includes installing one or more temporary support fixtures on one or more of the plurality of transmission structure. The plurality of fiber reinforced polymer support structures are of fiber reinforced polymer composite. The one or more temporary support fixtures are made of one of metal, fiber reinforced polymer or insulated material. The method includes another step of installing one or more temporary conductors between the plurality of fiber reinforced polymer support structure. The method includes yet another step of electrically connecting line needing a first end of conductor installed between the plurality of transmission structure with a first ends of the one or more temporary conductors. The method includes electrically connecting a second end of conductor installed between the plurality of transmission structure with a second ends of the one or more temporary conductors. The method includes yet another step of diverting current flowing though the section of conductor of the line needing-replacement to the one or more temporary conductors. The diverting disconnects the section of the line needing replacement from corresponding remaining line. The method includes yet another step of replacing the section of conductor of the line needing-replacement with a new section of conductor. The method includes yet another step of diverting current flowing through the one or more temporary conductors back to the new section of conductor. The sections of conductor of the line needing-replacement are replaced without interrupting power supply in any line of poly phase power transfer line. .
BRIEF DESCRIPTION OF THE FIGURES
[0012] Having thus described the invention in general terms, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale, and wherein:
[0013] FIG. 1A illustrates a block diagram for replacement of conductor wire without interrupting power supply, in accordance with various embodiment of the present disclosure;
[0014] FIG. 1B illustrates a block diagram for replacement of conductor wire without interrupting power supply, in accordance with various embodiment of the present disclosure; and
[0015] FIG. 1C illustrates a block diagram of a switching arrangement for replacement of conductor wire without interrupting power supply, in accordance with various embodiment of the present disclosure.
[0016] It should be noted that the accompanying figures are intended to present illustrations of exemplary embodiments of the present disclosure. These figures are not intended to limit the scope of the present disclosure. It should also be noted that accompanying figures are not necessarily drawn to scale.
DETAILED DESCRIPTION
[0017] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the present technology. It will be apparent, however, to one skilled in the art that the present technology can be practiced without these specific details. In other instances, structures and devices are shown in block diagram form only in order to avoid obscuring the present technology.
[0018] Reference in this specification to “one embodiment” or “an embodiment” means that a particular feature, structure, or characteristic described in connection with the embodiment is included in at least one embodiment of the present technology. The appearance of the phrase “in one embodiment” in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. Moreover, various features are described which may be exhibited by some embodiments and not by others. Similarly, various requirements are described which may be requirements for some embodiments but not other embodiments.
[0019] Moreover, although the following description contains many specifics for the purposes of illustration, anyone skilled in the art will appreciate that many variations and/or alterations to said details are within the scope of the present technology. Similarly, although many of the features of the present technology are described in terms of each other, or in conjunction with each other, one skilled in the art will appreciate that many of these features may be provided independently of other features. Accordingly, this description of the present technology is set forth without any loss of generality to, and without imposing limitations upon, the present technology.
[0020] It should be noted that the terms "first", "second", and the like, herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. Further, the terms "a" and "an" herein do not denote a limitation of quantity, but rather denote the presence of at least one of the referenced item.
[0021] FIG. 1 illustrates a system 100 for reconductoring without interrupting power supply in an electrical power transfer system in accordance with various embodiments of the present disclosure. In general, reconductoring corresponds to replacing an old conductor section of conductor with a new and/or advanced conductor. The system 100 replaces an old conductor in the electrical power supply system with a new conductor without interrupting power supply. The system 100 facilitates to replace existing conductor in transmission lines with another conductor without interrupting power supply. In general, an electrical power transfer system corresponds to a system used to transfer electrical power from one geographical location to other geographical locations. The system 100 enables a method for replacing an old conductor in the electrical power supply system with the new conductor without interrupting the power supply.
[0022] The electrical power transfer system is a poly phase power transfer system. The electrical power transfer system transfers poly phase electrical power. In an embodiment of the present disclosure, the electrical power transfer system includes any suitable phases. The electrical power transfer system consists of power transmission structures, power transmission conductor lines, power transmission bases and the like. In an embodiment of the present disclosure, the electrical power transfer system includes any suitable components of the like. The electrical power transfer system includes a plurality of transmission structure installed between a plurality of power transmissions bases. A plurality of conductor wires is installed between the plurality of transmission structure. The plurality of conductor wires carries current in a high voltage system from one geographical location to another geographical location.
[0023] The system 100 includes a plurality of transmission structure 102, a plurality of conductor wire 104, and plurality of fiber reinforced polymer support structure 106. In addition, the system 100 includes one or more temporary conductors 108, a switching arrangement 110 and one or more fiber reinforced polymer support structures 112. The plurality of elements of the electrical power transfer system enable transfer of electrical power from one geographical location to other geographical locations. The plurality of elements of the system 100 enables reconductoring of line needing-replacement without interrupting power supply in the electrical power supply system. The plurality of elements of the system 100 enables reconductoring of a section of conductor of a line needing-replacement without interrupting power supply in any line. In general, reconductoring corresponds to replacing an old conductor of a power transmission line with the new conductor. The plurality of elements of the system 100 enables replacement of conductor without interrupting power supply in the electrical power supply system. In an embodiment of the present disclosure, the system 100 includes any suitable components of the like.
[0024] The system 100 includes the plurality of transmission structure 102. In general, a transmission structure is a tall rigid structure, usually a steel lattice tower, used to support one or more overhead power transmission lines. The transmission structure corresponds to transmission tower, gantry tower and power transmission base. In an embodiment of the present disclosure, the transmission structure corresponds to any suitable structure of the like. The plurality of transmission structure 102 includes a first transmission structure 102a, a second transmission structure 102b and a third transmission structure 102c. In an embodiment of the present disclosure, the plurality of transmission structure 102 includes any suitable transmission structures of the like. The plurality of transmission structure 102 is rigid permanent structures of the electrical power transmission system 100. The plurality of power transmission structures 102 support conductor wires to enable transmission of power. The conductor wires are comprised of long wires supported on large support structures such as towers or power poles. Each of the plurality of transmission structure 102 is configured to carry the conductors 102 of two circuits on each side of the transmission structure. In an embodiment of the present disclosure, the plurality of transmission structure 102 is configured for any suitable configuration of the like.
[0025] The system 100 includes the plurality of conductor wires 104. The plurality of conductor wires 104 span entire distance between electrical power source and various locations in need of electrical power. In general, conductor corresponds to materials that allow flow of electric current in one or more directions. The plurality of conductor wires 104 corresponds to plurality of wires formed from conductor material. Poly phase electric power is a common method of alternating current electric power transmission and distribution. Poly phase power is a poly-phase system and is the most common method for transmission of electrical power worldwide. In an embodiment of the present disclosure, the electrical power transfer system employs any suitable method for transmission of electrical power.
[0026] The system 100 includes the plurality of fiber reinforced polymer support structure 106. The plurality of fiber reinforced polymer support structure 106 corresponds to a solid structure of a suitable shape designed to support one or more conducting wires. The plurality of fiber reinforced polymer support structure 106 is formed of fiber reinforced fiber composite. In an embodiment of the present disclosure, the plurality of fiber reinforced polymer support structure 106 is formed of any suitable material of the like. The plurality of fiber reinforced polymer support structure 106 is erected near to two consecutive transmissions structures of the plurality of transmission structures 102. The plurality of fiber reinforced polymer support structure 106 is erected to facilitate in reconductoring without interrupting the power supply. The plurality of fiber reinforced polymer support structure 106 facilitates to divert power supply through an alternate path to enable replacement of the section of conductor of the line needing-replacement without interrupting the power supply. Desired section refers to particular section of line needing-replacement of the poly phase power transfer line.
[0027] The plurality of fiber reinforced polymer support structure 106 is erected near each of the plurality of transmission structures 102 to by-pass entire power transfer line. The plurality of fiber reinforced polymer support structure 106 is erected near each of the plurality of transmission structures 102 to enable reconductoring of entire power transfer line. The one or more temporary support fixtures 112 are installed on each of the plurality of transmission structures 102 to by-pass entire power transfer line. The one or more temporary support fixtures 112 are installed on each of the plurality of transmission structures 102 to enable reconductoring of entire power transfer line.
[0028] In an embodiment of the present disclosure, the plurality of fiber reinforced polymer support structure 106 is erected distantly from the plurality of transmission structures 102. The plurality of fiber reinforce polymer support structure 106 is erected distantly from the plurality of transmission structures 102 under one or more constraints. The one or more constraints include less available space, unfavorable geographical condition, unfavorable weather condition and the like. In an embodiment of the present disclosure, plurality of fiber reinforce polymer support structure 106 is erected distantly from the plurality of transmission structures 102 under any unfavorable condition. The fiber reinforced polymer support structure 106 is light weight and easy to install. The fiber reinforced polymer support structure 106 is directly embedded in soil with or without metallic jacket. In an embodiment of the present disclosure, the fiber reinforced polymer support structure 106 is installed with any suitable mechanism of the like.
[0029] The fiber reinforced polymer support structure 106 is light in weight, easy to carry and have good insulating properties to be used as temporary structure. The fiber reinforced polymer support structure 106 reduces installation and execution time. The fiber reinforced polymer support structure 106 enables faster repair, maintenance or replacement of conductors of power transfer line. The fiber reinforced polymer support structure 106 saves time during repair, maintenance or replacement of conductors of power transfer line.
[0030] The system 100 includes the one or more temporary support fixtures 112. The one or more temporary support fixtures 112 are used instead of the plurality of fiber reinforced polymer support structure 106. The one or more temporary support fixtures 112 are installed on one or more of the plurality of transmission structures 102. The one or more temporary support fixtures 112 are installed on one or more of the plurality of transmission structures 102 with facilitation of nuts and bolts. The one or more temporary support fixtures 112 are installed on one or more of the plurality of transmission structures 102 with facilitation of mounting plate. In an embodiment of the present disclosure, the one or more temporary support fixtures 112 are installed on one or more of the plurality of transmission structures 102 with any suitable affixing arrangement of the like.
[0031] The one or more temporary support fixtures 112 are erected to facilitate in reconductoring without interrupting the power supply. The one or more temporary conductors 108 are installed between the one or more temporary support fixtures 112. In an embodiment of the present disclosure, the temporary conductors 108 are installed between the one or more temporary support fixtures 122 and the one of the plurality of fiber reinforced polymer support structure 106. The one or more temporary support fixtures 112 corresponds to a rigid structure of a suitable shape designed to provide temporary support to one or more conducting wires. The one or more temporary support fixtures 112 are formed of metal, fiber reinforced polymer (FRP) or insulated material. In an embodiment of the present disclosure, the one or more temporary support fixtures 112 are formed of any suitable material of the like.
[0032] The one or more temporary support fixtures 112 facilitate to divert power supply through an alternate path to enable replacement of the section of conductor of the line needing-replacement without interrupting the power supply. Desired section refers to particular section of line needing-replacement of the poly phase power transfer line. The one or more temporary support fixtures 112 are of predefined shape and size. Shape and size of the one or more temporary support fixtures 112 varies with space available and design of corresponding transmission structure of the plurality of transmission structure 102. The one or more temporary support fixtures 112 are light weight and easy to install. The one or more temporary support fixtures 112 are installed on one or more of the plurality of transmission structures 102. In an embodiment of the present disclosure, the one or more temporary support fixtures 112 are installed with any suitable mechanism of the like. The one or more temporary support fixtures 112 are light in weight, easy to install and have good insulating properties to be used as temporary structure. The one or more temporary support fixtures 112 reduce installation and execution time as temporary structure erection time is saved. The one or more temporary support fixtures 112 enable faster repair, maintenance or replacement of conductors of power transfer line. The one or more temporary support fixtures 112 saves time during repair, maintenance or replacement of conductors of power transfer line.
[0033] The plurality of conductor wires 104 includes a first conductor wire 104a, a second conductor wire 104b, and a third conductor wire 104c. In an embodiment of the present disclosure, the plurality of conductor wires includes any suitable number of conductor wires of the like. The first conductor wire 104a conduct first phase of the poly phase power supply system. The second conductor wire 104b conduct second phase of the poly phase power supply system. The third conductor wire 104c conduct third phase of the poly phase power supply system. The plurality of fiber reinforced polymer support structure 106 includes a first fiber reinforced polymer support structure 106a and a second fiber reinforced polymer support structure 106b. In an embodiment of the present disclosure, the plurality of fiber reinforced polymer support structure includes any suitable number of fiber reinforced polymer support structures. The plurality of fiber reinforced polymer support structure 106 is designed of one or more shapes depending upon availability of space.
[0034] The system 100 includes the one or more temporary conductors 108. The one or more temporary conductors 108 are installed between the plurality of fiber reinforced polymer support structure 106. The one or more temporary conductors 108 are electrically connected to the section of conductor of line needing-replacement of poly phase power supply. A first end of conductor installed between the plurality of transmission structure 102 is electrically connected with a first ends of the one or more temporary conductors 108. A second end of conductor installed between the plurality of transmission structure 102 is electrically connected with a second ends of the one or more temporary conductors 108. The first end of conductor corresponds to starting point of the section of conductor in direction of flow of current through conductor. The second end corresponds to termination point of the section of conductor in direction of flow of current through conductor. In an embodiment of the present disclosure, the first end corresponds to any suitable position on the section of conductor. In an embodiment of the present disclosure, the second end corresponds to any suitable position of the section of conductor. The first end of temporary conductor 108 corresponds to starting point of the temporary conductor in direction of flow of current through conductor. The second end corresponds to termination point of the temporary conductor in direction of flow of current through conductor.
[0035] The one or more temporary conductors 108 enable by-pass for the section of conductor of the line needing-replacement of poly phase power supply system. The one or more temporary conductors 108 facilitates in reconductoring without interrupting the power supply. The one or more temporary conductors 108 facilitate to divert power supply through an alternate path to enable replacement of the section of conductor of the line needing-replacement without interrupting power supply. The one or more temporary conductors 108 are preferably of same material as the plurality of conductor wire 104. In an embodiment of the present disclosure, the one or more temporary conductors 108 are of different material from the plurality of conductor wires 104.
[0036] FIG. 1C illustrates a block diagram of the switching arrangement 110 for replacement of conductor wire without interrupting power supply, in accordance with various embodiment of the present disclosure. The system 100 includes the switching arrangement 110. In general, switching arrangement is an electrical component that completes or disrupts an electrical circuit. Also, switching arrangement interrupts flow of current or diverts flow of current from one conductor to another conductor. The switching arrangement 110 includes a breaker 110a. The breaker 110a facilitates to complete or disrupts an electrical circuit. The switching arrangement 110 completes physical connection between the plurality of conductor wire 104 and the one or more temporary conductors 108. The switching arrangement 110 facilitates in reconductoring of line needing-replacement without interrupting power supply. The switching arrangement 110 provides means to selectively flow electricity through by-pass for the section of conductor of a line needing-replacement of poly phase power supply system. The switching arrangement 110 enables smooth transition in path of flow of electric current from conductor of line needing-replacement to the one or more temporary conductors 108. The switching arrangement 110 facilitates in replacing conductor wire of line needing replacement with the new conductor wire without interrupting power supply. The first end of the section of conductor of the line needing-replacement is electrically connected with one end of the one or more temporary conductors 108 with facilitation of the switching arrangement 110.
[0037] The plurality of transmission structure 102 includes the first transmission structure 102a, the second transmission structure 102b and the third transmission structure 102c. Each of the plurality of transmissions structure supports three conductor wires. The three wires 104 include the first conductor wire 104a, the second conductor wire 104b, and the third conductor wire 104c. Each of the three conductor wire conducts one phase of the poly phase power supply. Reconductoring of the three conductor wires carrying respective phases of poly phase power supply is carried out in sections. The system 100 enables reconductoring of the three conductor wires between every two consecutive transmission structures one after another. The system 100 enables reconductoring of the three conductor wires between every two consecutive transmission structures one at a time. The system 100 enables reconductoring of the three wires between the first transmission structure 102a and the second transmission structure 102b.
[0038] The plurality of fiber reinforced polymer support structures 106 are erected near to the first transmission structure 102a and the second transmission structure 102b. The system 100 includes the plurality of fiber reinforced polymer support structures 106 of different shape and size. Shape, size number of each of the plurality fiber reinforced polymer support structure 106 depends on available space, structure of corresponding transmission structure and the like. In an embodiment of the present disclosure, the shape, size and number of each of the plurality of fiber reinforced polymer support structure 106 depends on any suitable parameter of the like. The shape of each of the plurality of fiber reinforced polymer support structure 106 is selected from a group. The group includes I shape, H shape, T shape, L shape, F shape, Z shape and Y shape. In an embodiment of the present disclosure, the plurality of fiber reinforced polymer support structure 106 is of any suitable shape of the like.
[0039] The plurality of fiber reinforced polymer support structures 106 includes a first fiber reinforced polymer support structure 106a, a second fiber reinforced polymer support structure 106b and a third fiber reinforced polymer support structure 106c. In an embodiment of the present disclosure, one fiber reinforced polymer support structure is erected near to each of the plurality transmission structure 102. In another embodiment of the present disclosure, two or more fiber reinforced polymer support structures are erected near to each of the plurality of transmission structure 102. In yet another embodiment of the present disclosure, number of fiber reinforced polymer support structure to be erected near to each of the plurality of transmission structure 102 depends upon space available.
[0040] The first fiber reinforced polymer support structure 106a is erected near to the first transmission structure 102a. The second fiber reinforced polymer support structure 106b is erected near to the second transmission structure 102b. The third fiber reinforced polymer support structure 106c is erected near to the third transmission structure 102b. The one or more temporary conductors 108 are installed between the first fiber reinforced polymer support structure 106a and the second fiber reinforced polymer support structure 106b. The one or more temporary conductors 108 is electrically connected to the first conductor wire 104a. The one or more temporary conductors 108 is electrically connected to the first conductor wire 104a at two positions. The two positions are selected to by-pass entire length of the first conductor wire 104a between the first transmission structure 102a and the second transmission structure 102b. The two positions are selected to by-pass current flowing in the first conductor wire 104a between the first transmission structure 102a and the second transmission structure 102b without interrupting power supply. In an embodiment of the present disclosure, the two positions are selected on any suitable criteria of the like.
[0041] The one or more temporary conductors 108 is electrically connected to the first conductor wire 104a with the facilitation of the switching arrangement 110. The switching arrangement 110 is connected at a power station or sub-station, between the first conductor wire 104a and the one or more temporary conductors 108. In an embodiment of the present disclosure, the switching arrangement 110 is connected at any suitable position in the line. Electric current flowing in the first conductor wire 104a between the power station or sub-station and a last transmission structure of the plurality of transmission structure 102 is switched to the one or more temporary conductors 108. Electric current flowing in the first conductor wire 104a between the power station or sub-station and the last transmission structure of the plurality of transmission structure 102 is diverted to the one or more temporary conductors 108. Electric current is diverted without interrupting power supply in any line of the poly phase system. The diversion of current disconnects entire section of the line needing. Electric current flowing in the first conductor wire 104a between the power station or sub-station and the last transmission structure of the plurality of transmission structure 102 is diverted with facilitation of the switching arrangement 110. The switching arrangement 110 enables diverting of electric current from the first conductor wire 104a to the one or more temporary conductors 108 without interrupting power supply. The first conductor wire 104a is not conducting any current between power station or sub-station and the last transmission structure of the plurality of transmission structure 102. The first conductor wire 104a between the first transmission structure 102a and the second transmission structure 102b is replaced with the new conductor wire. Old section of the first conductor wire 104a between the first transmission structure 102a and the second transmission structure 102b is replaced with the new conductor wire.
[0042] The diverting of current to the one or more temporary conductors 108 and replacement of old conductor section with the new conductor section is carried out without interrupting power supply. Electric current flowing through the one or more temporary conductors 108 is diverted to the newly replaced first conductor. Electric current flowing through the one or more temporary conductors 108 is switched back to the newly replaced first conductor. The switching arrangement 110 enables diverting of electric current from the one or more temporary conductors 108 to the newly replaced first conductor. The switching arrangement 110 enables diverting of electric current from the one or more temporary conductors 108 to the newly replaced first conductor without interrupting power supply. The diversion of current and replacement of conductor is repeated for every section of consecutive power stations or sub-stations to replace entire length of the first conductor wire 104a with the new conductor wire.
[0043] The first fiber reinforced polymer support structure 106a is in place near to the first transmission structure 102a. The second fiber reinforced polymer support structure 106b is in place near to the second transmission structure 102b. The one or more temporary conductors 108 are in place between the first fiber reinforced polymer support structure 106a and the second fiber reinforced polymer support structure 106b. The one or more temporary conductors 108 is electrically connected to the second conductor wire 104b. The one or more temporary conductors 108 is electrically connected to the second conductor wire 104b at two positions. The two positions are selected to by-pass entire length of the second conductor wire 104b between the first transmission structure 102a and the second transmission structure 102b. The two positions are selected to by-pass current flowing in the second conductor wire 104b between the first transmission structure 102a and the second transmission structure 102b without interrupting power supply. In an embodiment of the present disclosure, the two positions are selected on any suitable criteria of the like.
[0044] The one or more temporary conductors 108 is electrically connected to the second conductor wire 104b with the facilitation of the switching arrangement 110. The switching arrangement 110 is connected at first electrical connection in the direction of motion of current, between the second conductor wire 104b and the one or more temporary conductors 108. In an embodiment of the present disclosure, the switching arrangement 110 is connected at any suitable position of the like. Electric current flowing in the second conductor wire 104b between the first transmission structure 102a and the second transmission structure 102b is switched to the one or more temporary conductors 108. Electric current flowing in the second conductor wire 104b between the first transmission structure 102a and the second transmission structure 102b is diverted to the one or more temporary conductors 108. Electric current is diverted without interrupting power supply in any line of the poly phases. The diverting disconnects the section of the line needing replacement from remaining line.
[0045] Electric current flowing in the second conductor wire 104b between the first transmission structure 102a and the second transmission structure 102b is diverted with facilitation of the switching arrangement 110. The switching arrangement 110 enables diverting of electric current from the second conductor wire 104b to the one or more temporary conductors 108 without interrupting power supply. The second conductor wire 104b is not conducting any current between the first transmission structure 102a and the second transmission structure 102b. The second conductor wire 104b between the first transmission structure 102a and the second transmission structure 102b is replaced with the new conductor wire. Old section of the second conductor wire 104b between the first transmission structure 102a and the second transmission structure 102b is replaced with the new conductor wire.
[0046] The diverting of current to the one or more temporary conductors 108 and replacement of old conductor section with the new conductor section is carried out without interrupting power supply. Electric current flowing through the one or more temporary conductors 108 is switched to the newly replaced second conductor. Electric current flowing through the one or more temporary conductors 108 is switched back to the newly replaced second conductor. The switching arrangement 110 enables diverting of electric current from the one or more temporary conductors 108 to the newly replaced second conductor. The switching arrangement 110 enables diverting of electric current from the one or more temporary conductors 108 to the newly replaced second conductor without interrupting power supply. The diversion of current and replacement of conductor is repeated for every set of consecutive transmission structure of the plurality of transmission structure 102 to replace entire length of the second conductor wire 104b with a new conductor wire.
[0047] The first fiber reinforced polymer support structure 106a is in place near to the first transmission structure 102a. The second fiber reinforced polymer support structure 106b is in place near to the second transmission structure 102b. The one or more temporary conductors 108 are in place between the first fiber reinforced polymer support structure 106a and the second fiber reinforced polymer support structure 106b. The one or more temporary conductors 108 is electrically connected to the third conductor wire 104c. The one or more temporary conductors 108 is electrically connected to the third conductor wire 104c at two positions. The two positions are selected to by-pass entire length of the third conductor wire 104c between the first transmission structure 102a and the second transmission structure 102b. The two positions are selected to by-pass current flowing in the third conductor wire 104c between the first transmission structure 102a and the second transmission structure 102b without interrupting power supply. In an embodiment of the present disclosure, the two positions are selected on any suitable criteria of the like.
[0048] The one or more temporary conductors 108 is electrically connected to the third conductor wire 104c with the facilitation of the switching arrangement 110. The switching arrangement 110 is connected at first electrical connection in the direction of motion of current, between the third conductor wire 104c and the one or more temporary conductors 108. In an embodiment of the present disclosure, the switching arrangement 110 is connected at any suitable position of the like. Electric current flowing in the third conductor wire 104c between the first transmission structure 102a and the second transmission structure 102b is switched to the one or more temporary conductors 108. Electric current flowing in the third conductor wire 104c between the first transmission structure 102a and the second transmission structure 102b is diverted to the one or more temporary conductors 108. Electric current is diverted without interrupting power supply in any line of the poly phase power system. The diverting disconnects the section of the line needing replacement from remaining line. Electric current flowing in the third conductor wire 104c between the first transmission structure 102a and the second transmission structure 102b is diverted with facilitation of the switching arrangement 110. The switching arrangement 110 enables diverting of electric current from the third conductor wire 104c to the one or more temporary conductors 108 without interrupting power supply. The third conductor wire 104c is not conducting any current between the first transmission structure 102a and the second transmission structure 102b. The third conductor wire 104c between the first transmission structure 102a and the second transmission structure 102b is replaced with the new conductor wire. Old section of the third conductor wire 104c between the first transmission structure 102a and the second transmission structure 102b is replaced with the new conductor wire.
[0049] The diverting of current to the one or more temporary conductors 108 and replacement of old conductor section with the new conductor section is carried out without interrupting power supply. Electric current flowing through the one or more temporary conductors 108 is switched to the newly replaced third conductor. Electric current flowing through the one or more temporary conductors 108 is switched back to the newly replaced third conductor. The switching arrangement 110 enables diverting of electric current from the one or more temporary conductors 108 to the newly replaced third conductor. The switching arrangement 110 enables diverting of electric current from the one or more temporary conductors 108 to the newly replaced third conductor without interrupting power supply. The diversion of current and replacement of conductor is repeated for every set of consecutive transmission structure of the plurality of transmission structure 102 to replace entire length of the third conductor wire 104c with a new conductor wire.
[0050] In addition, a safety net is installed between consecutive transmission structures of the plurality of transmission structure 102. The safety net is installed prior to replacement of the conductor of line needing-replacement between consecutive transmission structures of the plurality of transmission structure 102. In an embodiment of the present disclosure, the safety net is installed between consecutive fiber reinforced polymer support structures of the plurality of fiber reinforced polymer support structures 106. In an embodiment of the present disclosure, the safety net is installed prior to installation of temporary conductors between the plurality of fiber reinforced polymer support structure 106. The safety net will be installed with the facilitation of insulated ropes with supports on corresponding transmission structure of the plurality of transmission structure 102. In an embodiment of the present disclosure, the safety net will be installed with the facilitation of insulated ropes with supports on corresponding fiber reinforced polymer support structure of the plurality of fiber reinforced polymer support structure 102. The safety net provides safety against accidental breakage and fall of conductor from the corresponding plurality of transmission structures 102. In an embodiment of the present disclosure, the safety net provides safety against accidental breakage and fall of conductor from the corresponding plurality of fiber reinforced polymer support structures 106.
[0051] The system 100 may include one or more mechanical cranes. The one or more mechanical cranes replace one or more of the plurality of fiber reinforced polymer support structures 106. The one or more mechanical cranes lifts from hook one or more insulators or support structure to support the one or more temporary conductors 108. The one or more mechanical crane is utilized to support the one or more temporary conductors 108 to enable conductor replacement without interrupting the power supply. The one or more mechanical cranes replace one or more of the plurality of fiber reinforced polymer support structures 106 under one or more conditions. The one or more conditions include sufficient available space. In an embodiment of the present disclosure, the one or more conditions include any suitable condition of the like. The one or more mechanical cranes enable shorter conductor replacement time in comparison with the plurality of fiber reinforced polymer support structure 106.
[0052] The one or more mechanical cranes enable less conductor replacement cost in comparison with the plurality of fiber reinforced polymer support structure 106. In an embodiment of the present disclosure, the system 100 may include one or more pulleys. The one or more pulleys replace one or more of the plurality of fiber reinforced polymer support structures 106. The system 100 may include chains. The chains replace one or more of the plurality of fiber reinforced polymer support structures 106. The plurality of fiber reinforced polymer support structures 106 may be replaced by one or more humans. In an embodiment of the present disclosure, the plurality of fiber reinforced polymer support structure 106 is replaced by any suitable means of the like.
Claims:What is claimed is:
1. A method for transferring load on temporary conductor mounted on temporary supporting structure erected separately or on the transmission tower, conductor corresponds to existing old conductor of power transfer line, new conductor corresponds to unused and pristine conductors, and temporary conductors corresponds to conductors used to temporarily by-pass existing old conductors of power transfer line, the method comprising:
at least one of step a and b for zero shut-down of a live power transfer line during reconductoring,
a. erecting a plurality of rigid fibre-reinforced polymer (FRP) support structure (106) near to a plurality of transmission structure (102), wherein transmission structure (102) corresponds to rigid structure deployed to enable mechanical support to power transfer lines;
b. installing one or more temporary support fixtures (112) on one or more of the plurality of transmission structure (102), wherein the one or more temporary support fixtures (112) is made of one of metal, fiber reinforced polymer, or insulated material;
installing one or more temporary conductors (108) between the plurality of fiber reinforced polymer support structure (106) or between one of the plurality of fiber reinforced polymer support structure (106) and one or more temporary support fixtures (112) or between two of the one or more temporary support fixtures (112);
electrically connecting a first end of conductor installed between the plurality of transmission structure (102) with a first ends of the one or more temporary conductors (108), electrically connecting a second end of conductor installed between the plurality of transmission structure (102) with a second ends of the one or more temporary conductors (108);
diverting current flowing though one or more main conductors to the one or more temporary conductors (108);
replacing at least a portion of the section of the conductor with a new section of conductor; and
diverting current flowing through the one or more temporary conductors (108) to the new section of conductor;
wherein the sections of the conductor is replaced without interrupting power supply in any line of poly phase power transfer line.
2. The method as recited in claim 1, wherein the fiber reinforced polymer support structure (106) is light weight and easy to install, wherein the fiber reinforced polymer support structure (106) is directly embedded in soil with or without metallic jacket.
3. The method as recited in claim 1, wherein the one or more temporary support fixtures (112) corresponds to an additional cross arm bolted on one or more of the plurality of transmission structure (102), wherein the one or more temporary support fixtures (112) is affixed to one or more of the plurality of transmission structure (102) with facilitation of one or more frames.
4. The method as recited in claim 1, wherein the transmission structure (102) corresponds to a transmission tower and a gantry tower.
5. The method as recited in claim 1, wherein the first end of the section of conductor of the line needing-replacement is electrically connected with one end of the one or more temporary conductors (108) with a switching arrangement (110), wherein electrical connection between the conductor of the line needing replacement and the one or more temporary conductors (108) facilitates to temporarily changeover the load.
6. The method as recited in claim 1, wherein the plurality of fiber reinforced polymer support structure (106) is of predefined shape and size, wherein the one or more temporary support fixtures (112) is of predefined shape and size.
7. The method as recited in claim 1, wherein the plurality of fiber reinforced polymer support structure (106) is erected in particular number, wherein the one or more temporary support fixtures (112) is installed in particular umber, wherein number of the plurality of fiber reinforced polymer support structure (106) or the one or more temporary support fixtures (112) varies with space available and design of corresponding transmission structure of the plurality of transmission structure (102).
8. The method as recited in claim 1, wherein the method enables reconductoring of a line needing-replacement in a single phase power transfer line and a poly phase power transfer line.
| # | Name | Date |
|---|---|---|
| 1 | 201811029379-STATEMENT OF UNDERTAKING (FORM 3) [04-08-2018(online)].pdf | 2018-08-04 |
| 2 | 201811029379-FORM 1 [04-08-2018(online)].pdf | 2018-08-04 |
| 3 | 201811029379-FIGURE OF ABSTRACT [04-08-2018(online)].jpg | 2018-08-04 |
| 4 | 201811029379-DRAWINGS [04-08-2018(online)].pdf | 2018-08-04 |
| 5 | 201811029379-DECLARATION OF INVENTORSHIP (FORM 5) [04-08-2018(online)].pdf | 2018-08-04 |
| 6 | 201811029379-COMPLETE SPECIFICATION [04-08-2018(online)].pdf | 2018-08-04 |
| 7 | 201811029379-FORM 18 [09-08-2018(online)].pdf | 2018-08-09 |
| 8 | abstract.jpg | 2018-09-06 |
| 9 | 201811029379-FER.pdf | 2021-10-18 |
| 1 | D1E_27-07-2020.pdf |