FORM 2
THE PATENT ACT 1970
(39 of 1970)
&
The Patents Rules, 2003
PROVISIONAL SPECIFICATION
(Refer section 10 and Rule 13)
1. "ENERGY EVALUATION SYSTEM"
2. APPLICANT:
a) Name: MAHARASHTRA STATE ELECTRICITY DISTRIBUTION COMPANY
b) Nationality: India
c) Address: PRAKASHGAD, PLOT NO. G-9, PROF. ANANT KANEKAR MARG, BANDRA (E) MUMBAI - 400 051
3. PREAMBLE TO THE DESCRIPTION
The following Specification Particularly describes the invention.

ENERGY EVALUATION SYSTEM BACKGROUND OF THE INVENTION
Field of the Invention
Embodiments of the present invention relate to systems for energy evaluation, and more
particularly to a method for evaluating energy at each and every stage of transmission of
electricity from a source to multiple level receivers.
Description of the Related Art
In the usual electricity transmission networks, the electric energy is supplied from a
power station or the like in a high voltage network. At subsequent stages, the electric
energy is distributed among multiple receivers. The distribution is always accompanied
by various types of energy losses at each level of the network. The energy losses can
occur at two stages, either at reception of electric energy or during transmission of
electric energy.
An important problem faced these days is an increased demand for electrical power. To
meet the increased demand, the electric energy has to be conserved at each and every step
of distribution.
A conventional solution of conserving energy is to analyze a difference between energy
supplied and energy consumed for a particular period of time by an energy distribution
board. This procedure gives an idea of overall loss for that particular period of time.
However, this procedure does not give any detail about the occurrence of those losses.
For example, it will not give any indication of energy loss at each stage of distribution
network.


Moreover, the above-mentioned process is cumbersome and involves a lot of human
intervention. This makes the whole process error prone and unreliable.
Accordingly, there exists a need in the art for an energy evaluation system which results
in loss reduction to a maximum possible extent in an effective manner.
BRIEF DESCRIPTION OF THE DRAWINGS
So that the manner in which the above recited features of the present invention can be
understood in detail, a more particular description of the invention, briefly summarized
above, may be had by reference to embodiments, some of which are illustrated in the
appended drawings. It is to be noted, however, that the appended drawings illustrate only
typical embodiments of this invention and are therefore not to be considered limiting of
its scope, for the invention may admit to other equally effective embodiments.
FIG. 1 illustrates a hierarchy of levels in a network for distribution of electric energy in
accordance with an embodiment of the present invention.
FIG. 2 illustrates a view of a meter installed at each level of the network for distribution
of electric energy in accordance with an embodiment of the present invention.
DETAILED DESCRIPTION
FIG. 1 illustrates a hierarchy of levels in a network 100 for distribution of electric energy
in accordance with an embodiment of the present invention. The network includes a
power station 102, a sub-station 104, a feeder 106 and a district transformer 108. The
electric energy is supplied from the power station 102 to multiple sub-stations 104. The
electric energy is then supplied from the sub-station 104 to multiple feeders 106. The
feeder 106 supplies energy to multiple district transformers 108. The district transformer
108 supplies energy to multiple consumers (not shown) within a particular district.


The energy loss can occur at various stages of the network 100. For example, the energy loss can occur when the energy is supplied from the power station 102 to the sub-station 104. The energy loss can further occur when the energy is supplied from the sub-station 104 to the feeder 106 and/or when the energy is supplied from the feeder 106 to the district transformer 108. The energy loss can also occur when the energy is supplied to multiple consumers via the district transformer 108. Therefore the energy losses can occur at each and every level of the network 100. It may be noted that various levels of the network 100 are shown as an example only and the present invention can be used with other similar network (s) also.
FIG. 2 illustrates a view of a meter 200 installed at each level of the network 100 (of FIG.l for distribution of electric energy in accordance with an embodiment of the present invention. The meter 200 includes a meter identification field 202, a site identification field 204, an indicator 206, a reading field 208, a meter door 210, a meter window 212 and a meter lock 214. The meter identification field 202 indicates a meter identification number for a particular meter and the meter identification number contains, for example, a unique combination of seven digits. The site identification field 204 indicates a site identification number for a particular site at which the meter 200 is installed. Those of ordinary skill in the art will appreciate that multiple fields can be used for labeling the meter 200 depending upon the site at which the meter 200 is installed and various other parameters.
The indicator 206 indicates whether the meter 200 is working or not. According to an embodiment, the indicator 206 includes multiple light emitting diodes (LED) and the working of the meter 200 is indicated by flashing of the LED. Those of ordinary skill in


the art will appreciate that a single LED can also be used instead of multiple LEDs. Moreover, any other visual or audible indicator can be used instead of LED. The reading field 208 indicates a reading of the meter 200 at a particular instance of time. The reading is displayed as, for example, a combination of five numerals and the reading varies directly with a flow of electric energy through the meter 200. According to one embodiment, the reading may vary in steps of one with the flow of one unit of electric energy through the meter 200. Those of ordinary skill in the art will appreciate that the meter 200 can be configured in a manner such that the reading varies in steps one, two or any numeral with the flow of one or more units of electric energy through the meter 200. The meter door 210 protects the indicator 206 and the reading field 208 from external disturbances. The meter window 212 allows a person to see the indicator 206 and the reading field 208 when the meter door 210 is closed. Therefore, the indicator 206 and the reading field 208 can be monitored every time ensuring a proper functioning of the meter 200.
The meter lock 214 locks the meter door 210 once it is closed. The locking prevents any kind of possible tampering with the reading field 208 leading to an accurate working of the meter 200. The meter 200 is installed at a site with the help of multiple fasteners and/or screws (216). Those of ordinary skill in the art will appreciate that the meter lock 214 provides a tampering detection mechanism for the meter 200 and various other means, for example, seals can be used in place of or along with the meter lock 214. The conservation of electric energy can be done by evaluating energy at each and every level of the network 100 during the transmission and reception of the electric energy. The evaluation of energy involves, for example, calculating a difference between energy


received and energy supplied at each level of the network 100. The difference determined
at each level gives the energy lost at that level of the network 100. Similarly, energy loss
can be determined for each level. The evaluation of energy gives an indication of energy
losses and appropriate measures can be taken to minimize such losses. For example, if an
evaluation result reveals that maximum energy losses are occurring at a particular level of
the network 100 as compared to other levels, appropriate measures can be taken to
monitor that particular level. In this way, losses can be minimized and increased demand
for electrical power can be met with some ease. Thus, the present invention helps in loss
reduction which provides commercial value and helps in increasing revenue of the
electricity distribution board.
In the foregoing specification, specific embodiments of the present invention have been described. However, one of ordinary skill in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present invention as set forth in the various embodiments discussed above. Accordingly, the specification and figures are to be regarded in an illustrative rather than a restrictive sense, and all such modifications are intended to be included within the scope of present invention. The benefits, advantages, solutions to problems, and any element(s) that may cause any benefit, advantage, or solution to occur or become more pronounced are not to be construed as a critical, required, or essential features or elements as described herein.