TELECOM TRANSCEIVER POWERING SYSTEM FOR POWERING TELECOM TRANSCEIVERS FROM OVERHEAD POWER LINES
TECHNICAL FIELD
[0001] The present disclosure relates to a field of high voltage power conversion 5 and more specifically to a telecom transceiver powering system for powering one or more telecom transceivers from one or more overhead power lines.
BACKGROUND
[0002] With rise in number of power consuming facilities, there has been an increase in demand for developing more technologically sophisticated power distribution 10 infrastructure. Such demands are further boosted by growing demand for electrification of villages and primary power requirement of other industries. One of such industries is the telecom industry which provides basic and advanced mobile and wired communication services to users. Traditionally, power distribution companies are responsible for distributing power generated by power generating bodies across the 15 national grids and state distribution channels. These power distribution companies install extra high voltage (EHV) AC lines across power transmission towers, high voltage AC lines and Medium voltage (MV) AC lines at each stage of distribution. The power distributed by these companies is generally distributed at low voltage levels for residential and commercial purposes. The telecom industry generally installs its own 20 telecom towers and leases low voltage ac power from the distribution companies at near voltage levels of 110V to 220 V. Similarly, substations have auxiliary power units as backup power means in case of any emergency or failure situation. However, it has been observed that power shortage in rural areas or due to lack of power distribution channels or due to distant spread of power distribution facilities, power consumers are left with no 25 other options but to either live with intermittent power supply or to adopt costly power backup solutions. One of such backup power solution is use of generator sets or commonly referred to as gen-sets for supplying power in case of power failure or power
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cut. However, gen-sets traditionally rely on diesel for their operation and thus pose an environmental risk and are one of the key issues of increasing cost of operations. Moreover, these gen-sets have mechanical parts which require frequent maintenance and repair that further raises the cost of operation. Moreover, there are villages which have no connectivity to electrical power distribution channels and substations having no 5 proper auxiliary power arrangement in case of power failure.
[0003] One of the traditional solutions includes tapping power from the high voltage AC lines suspended on transmission towers. These systems may involve usage of capacitive or inductive methods. The capacitive method includes installation of high voltage capacitive voltage dividers for dividing transmission voltages and distribution 10 transformers for stepping down the voltages. These capacitive methods require direct physical connection of capacitive divider networks with the live lines which further requires higher safety and fault tolerant measures and installations. Alternatively, the inductive methods draw a small fraction of power from the transmission lines without actually having any physical contact with the live line and therefore, they are 15 traditionally considered safer for operation. However, they suffer from drawback of having lower efficiencies and lower power output. Moreover, the power down converted from the these tapping procedures are then transferred to power consuming facilities which further requires installation of long distribution lines and fundamentally it is best known the low voltage distribution over longer distances is nether economically prudent 20 nor technically efficient.
[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 supply low voltage ac power 25 directly tapped from EHV power lines.
[0006] Another object of the present disclosure is to provide an alternate power solution against gen-sets for mobile telecom facilities.
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[0007] Yet another object of the present disclosure is to provide auxiliary power to substations.
[0008] Yet another object of the present disclosure is to provide a solution to integrate telecom transceivers and EHV or HV power distribution on a common transmission tower. 5
[0009] Yet another object of the present disclosure is to provide a cost efficient and environmentally friendly solution of direct power transfer to power consumption facilities.
SUMMARY
[0010] The present disclosure provides a telecom transceiver powering system for 10 powering one or more telecom transceivers from one or more overhead power lines. The system includes an overhead transmission tower. The overhead transmission tower includes a framework defined by a plurality of legs anchored in ground. The plurality of legs are interconnected by lattice braces with at least one cross-arm extending transversely from the plurality of legs and supporting at least one overhead power line of 15 the overhead power lines. The at least one overhead power line extends above the ground from corresponding extending cross-arm of the overhead transmission tower. Further, the system includes one or more telecom transceivers of the mobile telecom facility. The one or more telecom transceivers are mounted on a support column for laterally supporting a weight of the one or more telecom transceivers with the support 20 column of the overhead transmission tower. The support column is attached with the lattice braces of the framework of the overhead transmission tower. The one or more telecom transceivers receive signals from at least one waveguide wire extending from the support columns to the ground. The system includes a power assembly of the mobile telecom facility. The power assembly is installed on the ground in vicinity of the 25 overhead transmission tower. The power assembly is electrically connected to the one or more telecom transceivers. The power assembly receives a second electrical power stepped down from a first electrical power of the overhead power lines. The power
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assembly supplies the received second electrical power to the one or more telecom transceivers mounted on the overhead transmission tower. Further, the power assembly transceives communication signals through the at least one waveguide wire extending the mounted one or more telecom transceivers on the overhead transmission towers. Further, the system includes one or more capacitive power voltage transformers. The 5 one or more capacitive power voltage transformers steps down a first voltage value of the first electrical power to a second voltage value of the second electrical power. The first electrical power is obtained by tapping the first electrical power from an active power conductor of the overhead power lines. Each capacitive power voltage transformers is supported by a mounting bracket from the overhead transmission tower 10 for counterbalancing weight of each capacitive power voltage transformer. Each capacitive power voltage transformed is connected by a jumper coil to an active power conductor of the overhead power lines. Each capacitive power voltage transformer is characterized by a primary port and a secondary port. The system includes a lightning arrester. The lightning arrester is electrically connected to the active power conductor 15 and physically suspended and supported by the active power conductor of the overhead power lines. The lightning arrester is electrically connected in parallel to the primary port of the one or more capacitive power voltage transformers.
BRIEF DESCRIPTION OF THE FIGURES
[0011] FIG. 1A illustrates front view of a structural setup for tapping power from 20 overhead power lines and supplying stepped down power to a mobile telecom facility, in accordance with various embodiments of the present disclosure;
[0012] FIG. 1B illustrates a close up view of the structural setup for tapping power from the overhead power lines and supplying stepped down power to the mobile telecom facility, in accordance with various embodiments of the present disclosure; 25
[0013] FIG. 2A illustrate a schematic block diagram for tapping power from the overhead power lines and supplying stepped down power to an integrated mobile telecom facility, in accordance with various embodiments of the present disclosure; and
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[0014] FIG. 2B illustrate an example of a schematic block diagram for tapping power from the overhead power lines and supplying stepped down power to a residential electrification facility; and
[0015] FIG. 2C illustrate another example of a schematic block diagram for tapping power from the overhead power lines and supplying stepped down power to a 5 substation auxiliary power facility.
DETAILED DESCRIPTION
[0016] FIG. 1A illustrates a setup 100 for tapping power from the overhead power lines and supplying stepped down power to a mobile telecom facility 202, in accordance with various embodiments of the present disclosure. The setup 100 provides a front 10 view of an integrated mobile telecom facility feeding power from overhead power lines. The setup 100 describes an integration of the mobile telecom facility 202 (as shown in FIG. 2A) with the overhead transmission tower 102. The mobile telecom facility 202 is powered from the power obtained and directly converted from the overhead power lines. The setup 100 describes a setup for supplying low voltage alternating current 15 (hereinafter “LV-AC”) power to the mobile telecom facility directly from high voltage alternating current (hereinafter “HV-AC”) power of the overhead power lines. Moreover, the setup 100 describes architecture of the integrated mobile telecom facility with the overhead transmission tower. The setup 100 describes operational relationships among each electrically active or passive components of the setup 100. The setup 100 20 describes connection of primary end of power transformers to overhead power lines of the overhead transmission tower 102. The high voltage is stepped down to a lower domestic supply range of voltages. The lower stepped down power is supplied to the mobile telecom facility 202 through an electrical network of power distribution cables. The supplied low voltage power may be metered for billing and may be regulated using 25 circuit breakers for limiting any surge current or short circuit current. The elements illustrated in the setup 100 are characteristically designed for direct installation on the
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overhead transmission tower 102 with minimal support requirement or near the base of the overhead transmission tower 102.
[0017] The setup 100 includes the overhead transmission tower 102, the active power conductor 104, one or more telecom transceivers 108a-b, a support column 110, a blocking filter 112 and the capacitive power voltage transformer 114. Further, the setup 5 100 includes a mounting bracket 116, a lightning arrester 118, a jumper coil 120 and a power assembly 122 of the mobile telecom facility 202.
[0018] The overhead transmission tower 102 is the structure for suspension of overhead power lines. The active power conductor 104 suspends from guiding and clamping provisions of the overhead transmission tower 102. The overhead 10 transmission tower 102 includes a framework. The framework is defined by a plurality of legs 106a anchored in ground and interconnected by lattice braces 106b with at least one cross-arm 106c extending transversely from the plurality of legs 106a. The at least one cross arm 106c supports at least one overhead power line of the overhead power lines. The at least one overhead power line extends above the ground from 15 corresponding extending cross-arm of the overhead transmission tower 102.
[0019] The one or more telecom transceivers 108a-b of the mobile telecom facility 202 is mounted on the support column 110. The support column 110 laterally supports the weight of the one or more telecom transceivers. The support column 110 is attached with the lattice braces 106b of the framework of the overhead transmission tower 102. 20 The one or more telecom transceivers 108a-b receives signals from at least one waveguide wire extending from the support column 110 to the ground. The one or more telecom transceivers 108a-b are mounted to operate invariant to at least one of a power signal noise, a corona discharge, a short circuit and a lightning surge.
[0020] The one or more telecom transceivers 108a-b receives a second electrical 25 power stepped down from a first electrical power of the overhead power lines. The power assembly 122 supplies the received second electrical power to the one or more telecom transceivers 108a-b mounted on the overhead transmission tower 102. The one
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or more telecom transceivers 108a-b transceives communication signals through the at least one waveguide wire extending from the mounted one or more telecom transceivers 108a-b on the overhead transmission tower 102. The power assembly 122 is installed on the ground in vicinity of the overhead transmission tower 102. The power assembly 122 is electrically connected to the one or more telecom transceivers 108a-b mounted on 5 the overhead transmission tower 102.
[0021] The setup 100 includes a power tapping setup (as discussed in detailed description of FIG. 2A) for tapping and transforming tapped power from the overhead power lines. The first electrical power from the overhead power lines are filtered for power line communication signals with the blocking filter 112. The blocking filter 112 10 is electrically connected to the active power conductor 104 through the jumper coil 120. The capacitive power voltage transformer 114 and the blocking filter 112 are electrically connected in series. In an embodiment of the present disclosure, the capacitive power voltage transformer 114 and the blocking filter 112 are physically supported by the mounting bracket 116. In an embodiment of the present disclosure, the capacitive power 15 voltage transformer 114 is supported by the mounting bracket 116 of the overhead transmission tower 102 for counterbalancing weight of the capacitive power voltage transformer 114. The capacitive power voltage transformer 114 weighs about 900 kilograms. In another embodiment of the present disclosure, the capacitive power voltage transformer 114 (not shown) rests at a base level of the overhead transmission 20 tower 102. The capacitive power voltage transformer 114 is supported by a concrete structure at the base level of the overhead transmission tower 102.
[0022] FIG. 2A illustrates a schematic block diagram 200 of the power tapping setup for tapping power from the overhead power lines and supplying stepped down power to the mobile telecom facility 202, in accordance with various embodiments of 25 the present disclosure. The schematic block diagram 200 describes the integration of the mobile telecom facility 202 with the overhead transmission tower 102 (as shown in FIG. 1A and FIG. 1B). The mobile telecom facility 202 is powered from the power obtained
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and directly converted from the overhead power lines. The schematic block diagram 200 describes a system for supplying low voltage alternating current (hereinafter “LV-AC”) power to the mobile telecom facility directly from high voltage alternating current (hereinafter “HV-AC”) power of the overhead power lines. The schematic block diagram 100 describes operational relationships among each electrically active or 5 passive components of the power tapping setup. The power tapping setup is characteristically designed to be installed directly on the overhead transmission tower 102 with minimal support requirement or near the base of the overhead transmission tower 102.
[0023] The schematic block diagram 100 of the electrical power tapping setup 10 includes the one or more active power conductors 104, the one or more lightning arresters 118, the one or more capacitive power voltage transformers 114 and one or more circuit breakers 212. The schematic block diagram 100 of the electrical power tapping setup includes the mobile telecom facility 202. The electrical power tapping setup may additionally include one or more blocking filters 112 for filtering any radio 15 frequency communication signals added with high voltage power signals on the overhead power lines. Each active power conductor of the one or more active power conductors 104 is part of a discreet and independent electrical circuit with connections of a lightning arrestor, a capacitive power voltage transformer, a circuit breaker and a blocking filter. 20
[0024] The electrical power tapping setup includes the overhead transmission tower 102. The overhead transmission tower 102 is a structure for suspension of the overhead power lines across a distributed network of electrical power grid. The overhead power lines, suspended on the overhead transmission tower 102, are designed to carry a significantly high electrical power. The high electrical power is supplied to electrical 25 substations for a step down of high voltage AC (HV AC) to medium voltage AC (MV AC). The medium voltage AC may then be supplied to local distribution transformers for another step down of medium voltage AC to low voltage AC.
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[0025] The overhead power lines are designed to carry different levels of voltages and power at different stages of power transmission and distribution. The different voltage levels identify a scale of the power transmission. Examples of the different voltage levels include but may not be limited to 200 kilovolt (hereinafter “kV”) line, 400 kilovolt line and 765 kilovolt line. Moreover, voltage levels of 765 kV and 400 kV in 5 overhead power lines commonly correspond to extra high voltage (hereinafter “EHV”) transmission. The overhead power lines include the one or more active power conductors 104 and one or more neutral conductors. Moreover, the overhead power lines may be configured as single circuit overhead line or double circuit overhead line. The single circuit overhead line includes three active power conductors for carrying 10 three phases of the power whereas the double circuit overhead line includes six overhead active power conductors. Each pair of three active power conductors carries three phases of the power. Each active power conductor is electrically tapped at specific nodes or points in the transmission phase and different types of passive or active electrical components are used to process the tapped power. 15
[0026] The overhead power lines are initially identified and marked for installation of the electrical power tapping setup. Further, the one or more active power conductors 104 are selected from the overhead power lines. The one or more active power conductors 104 are suspended from the overhead transmission tower 102. Each active power conductor of the one or more active power conductors 104 carries a first electrical 20 power. The first electrical power is characterized by a first voltage value and a first apparent power. The first electrical power in the one or more active power conductors 104 is characterized by the first voltage value in a range of 100 kilovolts to 1200 kilovolts. Moreover, the first apparent power is characterized to lie in a range of 1 kilovolt-ampere-1000 kilovolt-amperes. Examples of the first voltage value include but 25 may not be limited to 200 kV, 400 kV, 765 kV and 800 kV. The first voltage value corresponds to EHV power transmission lines of the overhead transmission tower 102.
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[0027] The electrical power tapping setup facilitates the tapping of the first electrical power from a single phase or from a three phase distribution. The first electrical power is tapped by connecting the one or more capacitive power voltage transformers 114 to the corresponding one or more active power conductors 104 of the overhead power lines. Each capacitive power voltage transformer of the one or more 5 capacitive power voltage transformers 114 is characterized by a primary port 114a and a secondary port 114b. The primary port 114a of the capacitive power voltage transformer is electrically connected to the active power conductor 104 using the jumper coil 120. The jumper coil 120 may be a slack jumper connection.
[0028] The primary port 114a of each capacitive power voltage transformer of the 10 one or more capacitive power voltage transformers 114 needs to be protected from surge currents, short circuit currents and lightning discharges. The lightning arrester 118 is electrically connected to the active power conductor 104 and physically suspended and supported by the active power conductor 104 of the overhead power lines. The one or more lightning arresters 118 provide grounding to at least one of the leakage currents, 15 surge currents, the short circuit currents and the lighting discharge currents in the overhead power lines. Each lightning arrester of the one or more lightning arresters 118 is electrically connected in parallel with the primary port 114a of each of the one or more capacitive power voltage transformers 114. Each lightning arrestor of the one or more lightning arresters 118 is operationally characterized by a power rating. The power 20 rating of each lightning arrester of the one or more lightning arresters 118 is equal to the first voltage value of the first electrical power carried by the overhead power lines. For example, the lightning arrester 118 may have a power rating of 400 kV for 400 kV as the first voltage value of the overhead power lines and the lightning arrestor 118 may have a power rating of 765 kV for 765 kV as the first voltage value of the overhead power lines. 25 The lightning arrestor 118 is an electrical device for providing a low resistance path to any of the leakage, discharge, surge and short circuit current. The lightning arrestor 118
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protects the primary port 114a of the capacitive power voltage transformer 114 from any external or fault based high current.
[0029] The overhead power lines may additionally serve as a carrier for power line carrier signals (hereinafter “PLCC”). The first electrical power from the overhead power line may be tapped by first filtering any such PLCC signals in each of the one or 5 more active power conductors 104. In an embodiment of the present disclosure, the primary port 114a of the one or more capacitive power voltage transformers 114 is connected in series with the one or more blocking filters 112 and the one or more active power conductors 104. The one or more blocking filters 112 are inserted between the one or more active power conductors 104 and the primary port 114a of the one or more 10 capacitive power voltage transformers 114. Each blocking filter may a high pass filter with a cutoff frequency adjusted to allow the high voltage AC power to pass and block low voltage PLCC signals. Each blocking filter of the one or more blocking filters 112 filters power line carrier communication signals from the first electrical power from the overhead power lines. 15
[0030] The one or more capacitive power voltage transformers 114 receive the first electrical power from the connected one or more active power conductors 104 of the overhead power lines. The first electrical power is received at the primary port 114a of each of the one or more capacitive power voltage transformers 114. Each capacitive power voltage transformer internally consists of a capacitor divider circuit for 20 distributing the first voltage value of the first electrical power across a series of capacitors. The voltage is adaptively distributed by configuring the operational parameters or number of the capacitors in series. The distributed first voltage value is fed to a distribution transformer, primary of which is connected to the capacitor divider circuit. The capacitor divider circuit and the distribution transformer are enclosed by an 25 enclosure and the enclosure is filled with Jarylec oil and SF6 insulation. Each capacitive power voltage transformer is rated to draw a specific apparent power from the first electrical power. The specific apparent power may be in a range of 1 kVA to 5 kVA.
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[0031] The one or more capacitive power voltage transformers 114 steps down a first voltage value of the first electrical power to a second voltage value of the second electrical power. The first electrical power is obtained by tapping the first electrical power from the active power conductor of the overhead power lines. The one or more capacitive power voltage transformers 114 provide the second electrical power at the 5 secondary port 114b of each of the one or more capacitive power voltage transformers 114. The first electrical power and the second electrical power are alternating current powers and the first voltage value is substantially greater than the second voltage value. The second electrical power is characterized by the second voltage value and a second apparent power. The second electrical power is characterized by the second voltage 10 value in a range of 220 Volts to 400 Volts and the second apparent power in a range of 1 kilovolt-ampere to 5 kilovolt-amperes. In an example, each capacitive power voltage transformer steps down a 1000 kVA, 765 kV and single phase (hereinafter “1-ɸ”) power from a single overhead power line to 5 kVA, 220 V and 1-ɸ power. In another example, each capacitive power voltage transformer steps down a 1000 kVA, 400 kV and 1-ɸ 15 power from the single overhead power line to 5 kVA, 220 V and 1-ɸ power. In yet another example, each capacitive power voltage transformer steps down a 1000 kVA, 765 kV and 1-ɸ power from the single overhead power line to 5 kVA, 400 V and 1-ɸ power. In yet another example, a pair of three capacitive power voltage transformers may step down a 1000 kVA, 765 kV, three phase (hereinafter, “3-ɸ”) power from three 20 separate active power conductors to 5 kVA, 400 V and 3-ɸ power.
[0032] The power tapping setup may distribute power across the mobile telecom facility 202. In an embodiment of the present disclosure, the first electrical power and the second electrical power are distributed as a single phase power across single phase loads. In another embodiment of the present disclosure, the first electrical power and the 25 second electrical power are distributed as three phase power across three phase loads. The mobile telecom facility 202 is a systemic interconnection of multiple devices
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synchronously operating for transceiving communication signals over multiple communication channels and networks.
[0033] The mobile telecommunication facility 202 includes the power assembly 122 and the one or more telecom transceivers 108a-b. The power assembly 122 includes a battery charger 204, one or more batteries 206, a smart mode power supply 5 208 and an amplifier 210. The one or more telecom transceivers 108a-b of the mobile telecom facility 202 are mounted on the overhead transmission tower (as shown in FIG. 1A and FIG. 1B). The one or more telecom transceivers 108a-b are mounted to operate invariant of at least one of a power signal noise, a corona discharge, a short circuit and a lightning surge. The power assembly 122 of the mobile telecom facility 202 is installed 10 in vicinity of the overhead transmission tower 102. The power assembly 122 is electrically connected to the one or more telecom transceivers 108a-b. The power assembly 122 is installed for receiving the second electrical power stepped down from the first electrical power of the overhead power lines. The power assembly 122 is loaded with the one or more telecom transceivers 108a-b. The power assembly 122 15 supplies power and communication signals to the one or more telecom transceivers 108a-b.
[0034] The battery charger 204 provides rated direct current for charging the one or more batteries 206. The battery charger 204 receives the second electrical power stepped down from the first electrical power of the overhead power lines in the form of 20 an AC load current from the secondary port 114b and converts the AC load current to rated direct current (hereinafter “DC”). The rated DC is suitable for charging the one or more batteries 206 at optimal charging rates. The one or more batteries 206 and the battery charger 204 are electrically connected to the smart mode power supply 208 (hereinafter “SMPS”). The SMPS 208 is a switching regulator for distributing rated DC 25 at different voltage and current levels to the amplifier 210 and the one or more telecom transceivers 108a-b. The one or more telecom transceivers 108a-b includes but may not be limited to dish antennas, GSM antennas, repeaters and the like. For example, each
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battery may be rated at 48V and the battery charger 204 may be supplying 5 Amperes rated DC for charging the one or more batteries 206 and providing input to the SMPS 208. The SMPS 208 may provide 5V, 12V, 24V, 36V and 48V voltage outputs to the amplifier 210 and the one or more telecom transceivers 108a-b. The SMPS 208 supplies the received second electrical power to the one or more telecom transceivers mounted on 5 the overhead transmission tower. The voltage outputs may be independently fed to different operational features of the amplifier 210 and the one or more telecom transceivers 108a-b. The amplifier 210 transceives energy signals through the at least one waveguide wire extending the mounted one or more telecom transceivers 108a-b on the overhead transmission towers. The power tapping setup provides a solution for 10 expanding scope of usage of the overhead transmission tower 102 from suspension and transmission of overhead power lines to an integrated telecommunication and power line suspension tower.
[0035] The second electrical power may be regulated for balancing power consumption requirements of the mobile telecom facility 202. The secondary port 114b 15 of each capacitive power voltage transformer is electrically connected to the circuit breaker 212 and a metering device 214 (as shown in FIG. 2B). The distribution of the second electrical power is regulated by installing the metering device 214 and the circuit breaker 212 in series between secondary port 114b and battery charger 204 of the power assembly 122. The metering device 214 meters the second electrical power provided 20 from the secondary port 114b of the one or more capacitive power voltage transformers 114. Moreover, the metering device 214 may be used in certain applications for billing power consumption. Further, the metered second electrical power may pass through the circuit breaker 212. The circuit breaker 212 is an electrical switch which switches off automatically based on sensing excess current over a limiting amount of current. The 25 circuit breaker 212 switches off the second electrical power provided from the secondary port 114b of the one or more capacitive power voltage transformers 114. The second
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power is switched off for protection of power assembly 121 of the mobile telecom facility 202 from damage by overcurrent, overload, short circuit or any fault.
[0036] Referring to FIG. 2B, a residential electrification facility 216 is powered with the second electrical power from the power tapping setup of FIG. 2A. The residential electrification facility 216 corresponds to residential environments housing 5 domestic loads. For example, the closed environments may correspond to residential complexes which have different types of residential loads like fans, air conditioner, refrigerator, lighting, and the like. The residential electrification facility 216 includes an alternating current distribution board 218 and one or more residential loads 220. The second electrical power from the secondary port 114b of the capacitive power voltage 10 transformer 114 is supplied through the circuit breaker 212 to the alternating current distribution board 218. The alternating current distribution board 218 acts as an enclosure for the circuit breaker 212, fuses, cable branches and meters. The alternating current distribution board 218 distributes and meters second electrical power to each of the one or more residential loads 220. 15
[0037] Referring to FIG. 2C a substation auxiliary power facility 222 is powered with the second electrical power from the power tapping setup of FIG. 2A. The substation auxiliary power facility 222 corresponds to an environment for housing one or more auxiliary loads 224 of substations. The one or more auxiliary loads 224 of the substation are 3-ɸ loads. The power tapping setup for obtaining 3-ɸ power includes 20 connection of a first capacitive power voltage transformer 114a to a first phase active power conductor 104a. Further, the power tapping setup includes connection of a second capacitive power voltage transformer 114b to a second phase active power conductor 104b. In addition, the power tapping setup includes connection of a third capacitive power voltage transformer 114c to a third phase active power conductor 104c. 25 The first capacitive power voltage transformer 114a is connected to a first metering device 214a and a first circuit breaker 212a at a first secondary port. The second capacitive power voltage transformer 114b is connected to a second metering device
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214b and a second circuit breaker 212b at a second secondary port. The third capacitive power voltage transformer 114c is connected to a third metering device 214c and a third circuit breaker 212c at a third secondary port. In addition, the PLCC signals in the first active power conductor 104a, the second active power conductor 104b and the third active power conductor 104c are filtered by a first blocking filter 112a, a second 5 blocking filter 112b and a third blocking filter 112c.
[0038] In an example, the first phase, the second phase and the third phase of the one or more active power conductors 104 are represented as R, Y and B. Examples of the one or more auxiliary loads 224 of the substation includes but may not be limited to climate control and lightings, heaters, panels, power transformer cooling fans, driving 10 motors for on-load tap changer, station battery and traditional wall socket outlets. The one or more capacitive power voltage transformers 114a-c provide an optimum ac voltage value for the one or more auxiliary loads 224 of the substations auxiliary power facility 222. In an example, the optimum ac voltage value for the one or more auxiliary loads is 400V AC at 50 Hz. 15
[0039] It may be noted that in FIG. 2A, FIG. 2B and FIG. 2C, the second electrical power is provided to the mobile telecom facility 202, the residential electrification facility 216 and the substation auxiliary power facility 222; however, those skilled in the art would appreciate that more types of facilities can receive the second electrical power. It may be noted that in FIG. 2A, FIG. 2B and FIG. 2C, the 20 first power is drawn by a single capacitive power voltage transformer from a single overhead power conductor; however, those skilled in the art would appreciate that more number of capacitive power voltage transformers may draw power from a single overhead power conductor. Also, it may be noted that in FIG. 2A, FIG. 2B and FIG. 2C, a single capacitive power voltage transformer supplies power to a single power 25 consuming facility; however, those skilled in the art would appreciate that more number of a single capacitive power voltage transformer supplies power to more number of power consuming facilities.
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[0040] The present disclosure has various advantages over the prior art. The present disclosure provides a novel solution for supplying low voltage ac power directly tapped from EHV power lines to mobile telecom facilities and generally to different types of single phase or three phase loads. The present disclosure provides an alternate power solution against gen-sets for mobile telecom facilities. The present disclosure 5 provides an optimal way to provide auxiliary power to substations. The substation can operate independently even in case of any faults, repair or maintenance operations for which primary supply is cut. The present disclosure provides a solution to integrate telecom transceivers and EHV or HV power distribution units on same overhead transmission tower. The integration saves cost for maintenance and erection of 10 standalone transmission towers. The present disclosure provides a cost efficient and environment friendly solution of direct power transfer to power consumption facilities.

CLAIMS
What is claimed is:
1. A telecom transceiver powering system to power one or more telecom transceivers (108a-108b) from one or more overhead power lines, the telecom transceiver 5 powering system comprising:
an overhead transmission tower (102) defined by a frame, wherein the frame is defined by a plurality of legs (106a) anchored in ground and interconnected by lattice braces (106b) with at least one cross-arm (106c) extending transversely from the plurality of legs (106a) and supporting at least one overhead power line 10 extending above the ground from corresponding extending cross-arm (106c);
one or more telecom transceivers (108a-108b) mounted on a support column (110) attached to the lattice braces (106b) of the frame of the overhead transmission tower (102), wherein the one or more telecom transceivers (108a-108b) are mounted for: 15
laterally supporting weight of the one or more telecom transceivers (108a-108b) with the support column (110) of the overhead transmission tower (102); and
receiving signals from at least one waveguide wire extending from the support column (110) to the ground; 20
a power assembly (122) of a mobile telecom facility (202) installed on the ground and in vicinity of the overhead transmission tower (102), wherein the power assembly (122) is electrically connected to the one or more telecom transceivers (108a-108b) mounted on the overhead transmission tower (102) and wherein the power assembly (122) comprises: 25
a battery charger (204) for receiving a second electrical power stepped down from a first electrical power of the overhead power lines;
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a smart mode power supply (208) for supplying the received second electrical power to the one or more telecom transceivers (108a-108b) mounted on the overhead transmission tower (102); and
an amplifier (210) for transceiving energy signals through the at least one waveguide wire extending the mounted one or more telecom transceivers 5 (108a-108b) on the overhead transmission tower (102);
one or more capacitive power voltage transformers (114a-114c) supported by a mounting bracket (116) from the overhead transmission tower (102) for counterbalancing weight of each capacitive power voltage transformer, wherein each capacitive power voltage transformed is connected by a jumper coil (120) to an 10 active power conductor (104) of the overhead power lines and wherein each capacitive power voltage transformer is characterized by a primary port (114a) and a secondary port (114b), wherein the one or more capacitive power voltage transformers (114a-114c) are configured to:
step down a first voltage value of the first electrical power from the 15 overhead power lines to a second voltage value of the second electrical power, the first electrical power is obtained by tapping the first electrical power from an active power conductor (104) of the overhead power lines;
powering the mobile telecom facility (202) by controllably feeding the stepped down second electrical power to the power assembly (122) and 20 the one or more telecom transceivers (108a-108b) of the mobile telecom facility (202), wherein the mobile telecom facility (202) is powered by the second electrical power with the second voltage value in a range of 220 Volts to 400 Volts and a second apparent power in a range of 1 kilovolt-ampere to 5 kilovolt-amperes; and 25
a lightning arrester (118) electrically connected to the active power conductor (104) and physically suspended and supported by the active power conductor (104)
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of the overhead power lines and electrically connected in parallel to the primary port (114a) of the one or more capacitive power voltage transformers (114a-114c).
2. The telecom transceiver powering system as recited in claim 1, wherein the one or more telecom transceivers (108a-108b) are mounted to operate invariant to at least one of a power signal noise, a corona discharge, a short circuit and a lightning surge. 5
3. The telecom transceiver powering system as recited in claim 1, further comprising one or more blocking filters (112) for filtering power line carrier communication signals from the tapped first electrical power from the overhead power lines.
4. The telecom transceiver powering system as recited in claim 1, further comprising a metering device (214) for metering the second electrical power provided from the 10 secondary port (114b) of the one or more capacitive power voltage transformers (114a-114c).
5. The telecom transceiver powering system as recited in claim 1, further comprising a circuit breaker (212) for switching off the second electrical power provided from the secondary port (114b) of the one or more capacitive power voltage transformers 15 (114a-114c), wherein the second electrical power is switched off based on a limiting current handling capacity of the power assembly (122) of the mobile telecom facility (202).
6. The telecom transceiver powering system as recited in claim 1, wherein the first electrical power is characterized by the first voltage value in a range of 100 kilovolts 20 to 1200 kilovolts and a first apparent power in a range of 1 kilovolt-ampere-1000 kilovolt-amperes.
7. The telecom transceiver powering system as recited in claim 1, wherein the first electrical power and the second electrical power are alternating current powers and the first voltage value is substantially greater than the second voltage value. 25
8. The telecom transceiver powering system as recited in claim 1, wherein the first electrical power and the second electrical power are distributed as a single phase power.
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9. The telecom transceiver powering system as recited in claim 1, wherein the first electrical power and the second electrical power are distributed as three phase power.
10. The telecom transceiver powering system as recited in claim 1, wherein the lightning arrester (118) is characterized by a power rating, the power rating is equal to the first voltage value of the first electrical power carried by the overhead power lines.