Page 47 - ECLECTIC MARCH-2022 INSIDE PAGES_p2.indd
P. 47
RODUCTION OF CO-AXIAL CABLE
IN DISTRIBUTION OF ELECTRICITY TO
COMBAT THEFT
ANUPOM MIDHYA
LOSS CONTROL CELL
Abstract
Across 567 sq. km. of distribution network of CESC Ltd. there are several identified theft prone zones where
percentage of T&D loss is very high. With application of di erent conventional methods, it is hard to achieve
remarkable gain in those pockets. Hooking is one of the primary modes of theft in those pockets. Organized
de-hooking drive is not su cient to get desired result. We started exploring cable which is concentric in nature,
where neutral of the cable will be on the outer position, so that any one tries to access the phase, short circuit will
happen immediately. Finally, co-axial cable had been developed having similar construction. Such construction
of the cable is itself a barrier for unauthorized tapping from outside. We have successfully executed a POC in
overhead mode. The main challenge of execution of POC was to develop fittings for drawl of the cable along with
its termination. We move forward with execution of di erent co-axial projects and got desired outcome. This
paper overviews the procedure of implementation of co-axial cable replacing the existing overhead network
consisting of either ACSR or AB cable.
INTRODUCTION different type of theft. One of such approaches was
to convert our existing network to co-axial network
One of the major performance parameters of a where hooking or tapping from network is primary
power distribution utility is T&D loss which affects mode of pilferage.
economically as well as operationally. Loss Control Cell
started its journey with renewed strength in the year NEW TECHNOLOGY - CO-AXIAL CABLE
2000-01 with a loss figure of 22.82%, since then we
were trying hard to reduce loss. Apart from technical We have mainly ACSR Raccoon conductor or AB
loss in the system electricity theft is a major contributor (Aluminium Bundled) cable mainline network in
in T&D loss. Such theft is mainly concentrated in some overhead mode. It is observed that in the theft prone
pockets around Kolkata and Howrah. With our focused areas illegal power abstraction takes place by means of
conventional approach, we have reduced our T&D loss hooking or tapping from our existing overhead network.
from 22.8% to 12.2% in twelve years. From 2012-13 In ACSR bare conductor, hooking takes place from any
to 2015-16 our loss Figure is hovering around 11.5%. point of mainline over the span in overhead network
We need a new approach to break the barrier. Many as there is no insulation. In the AB cable, hooking is
innovative approaches were adopted to counter
47
IN DISTRIBUTION OF ELECTRICITY TO
COMBAT THEFT
ANUPOM MIDHYA
LOSS CONTROL CELL
Abstract
Across 567 sq. km. of distribution network of CESC Ltd. there are several identified theft prone zones where
percentage of T&D loss is very high. With application of di erent conventional methods, it is hard to achieve
remarkable gain in those pockets. Hooking is one of the primary modes of theft in those pockets. Organized
de-hooking drive is not su cient to get desired result. We started exploring cable which is concentric in nature,
where neutral of the cable will be on the outer position, so that any one tries to access the phase, short circuit will
happen immediately. Finally, co-axial cable had been developed having similar construction. Such construction
of the cable is itself a barrier for unauthorized tapping from outside. We have successfully executed a POC in
overhead mode. The main challenge of execution of POC was to develop fittings for drawl of the cable along with
its termination. We move forward with execution of di erent co-axial projects and got desired outcome. This
paper overviews the procedure of implementation of co-axial cable replacing the existing overhead network
consisting of either ACSR or AB cable.
INTRODUCTION different type of theft. One of such approaches was
to convert our existing network to co-axial network
One of the major performance parameters of a where hooking or tapping from network is primary
power distribution utility is T&D loss which affects mode of pilferage.
economically as well as operationally. Loss Control Cell
started its journey with renewed strength in the year NEW TECHNOLOGY - CO-AXIAL CABLE
2000-01 with a loss figure of 22.82%, since then we
were trying hard to reduce loss. Apart from technical We have mainly ACSR Raccoon conductor or AB
loss in the system electricity theft is a major contributor (Aluminium Bundled) cable mainline network in
in T&D loss. Such theft is mainly concentrated in some overhead mode. It is observed that in the theft prone
pockets around Kolkata and Howrah. With our focused areas illegal power abstraction takes place by means of
conventional approach, we have reduced our T&D loss hooking or tapping from our existing overhead network.
from 22.8% to 12.2% in twelve years. From 2012-13 In ACSR bare conductor, hooking takes place from any
to 2015-16 our loss Figure is hovering around 11.5%. point of mainline over the span in overhead network
We need a new approach to break the barrier. Many as there is no insulation. In the AB cable, hooking is
innovative approaches were adopted to counter
47
