MoP - Ministry of Power

Central Power Research Institute (CPRI)
An Autonomous Registered Society under the Ministry of
Power, the Central Power Research Institute (CPRI) is in
the service of the Nation, undertaking applied research in
electric power engineering besides functioning as an
independent Testing and Certification Authority for electrical
equipment and components to ensure reliability and
improve innovate and develop new products. The
laboratories are located at Bangalore, Bhopal, Nagpur,
Thiruvanthapuram, Hyderabad and Ghaziabad.
New Test Facility Created
The illumination Laboratory of Electrical Appliances
Technology Division has set up a PC based Compact
Fluorescent Lamp (CFL) endurance testing facility, which
was recently commissioned and the testing work is in
progress.
Special tests conducted at laboratories of CPRI
800kV High Voltage Direct Current (HVDC), Type ‘A’
(W:4) tower tested for the first time in the Country/
World. The salient features of the tower are:
Height:59m, Weight:43t & Cross arm:53m (end to end).
Powergrid Corporation of India Ltd. (PGCIL) was the
customer.
Condition monitoring tests on Power House &
Switchyard equipments including Hydro Generators,
Generator transformers, Current Transformers, Current
Voltage Transformers, Potential Transformers, Lighting
Arresters for Loktak Power Station, Manipur completed.
Diagnostic tests on 220 kV substation equipment at
Durgapur sub-station, West Bengal State Electricity
Board (WBSEB).
Site testing on 220kV, 1000 sq. mm Cross-limited
Polyethylene (XLPE) cable of M/s. BRUGG Cables,
Switzerland at Brigade Group site at K. R. Puram,
Bangalore on 3 rd , 9 th & 27 th April 2007.
HV test on 66kV cable for M/s. NICCO Corporation,
K. R. Puram, Bangalore on 26 th April 2007.
Humidity tests with application of 7 kV on a outdoor
vacuum kiosk, 12kV 630 A for one of the circuit breaker
for M/s. ABB, Nasik.
Testing of Bus Bar Protection Relay was carried out
for M/s. AREVA T&D Ltd., Chennai.
Diagnostic tests at Site
1) Diagnostic tests were carried out on Generators and
Switchyard equipment at NHPC, Uri Power Station
during 8 th to 20 th October 2007.
CHAPTER - 22.12
2) Recovery Voltage Measurement (RVM) tests were
carried out on 400kV class Transformers at NTPC,
Farakka, West Bengal during 4 th to 6 th October 2007.
3) Diagnostic tests were carried out on Steam Turbine
Generators, Generator Transformers, Auxiliary
Transformers on 220kV class Current Transformers,
Current Voltage Transformers (CVTs) & Las at M/s.
GMR Energy Ltd., Mangalore during 29 th Oct to
7 th Nov. 07.
4) Diagnostic tests were carried out on 220kV class
Current Transformers, CVTs at Durgapur Thermal
Power Station (DTPS), DVC, Durgapur during 16 th to
24 th Nov. 07.
5) Diagnostic tests were carried out on 215 MV Hydro
Generators and Switchyard equipments are in progress
at Sutluj Jal Vidyut Nigam Ltd., Jakhri, H.P.
Condition Monitoring tests
Condition Monitoring tests were carried out on Substation
equipment at Rourkela Steel Plant, Rourkela, Orissa during
20th Sept. to 14th Oct. 2007.
Field Services & Special Consultancy rendered:
A Software for design of Earth Mat for Extra High
Voltage (EHV) Substations developed by CPRI was
delivered to KSEB, Thiruvananthapuram as a
technology transfer to KSEB. As part of this, three
Engineers from KSEB underwent one day Exposure
programme in the usage of the Software and also to
understand the algorithm of Earth mat design based
on relevant Indian and International Standards.
Design checking/analysis of 50m triangular base
microwave tower for M/s. Trylon TSF, Canada.
The 400kV D/C tower, Type ‘SET70’ of Delta
configuration with major features like 58 meter height,
cross arm length of 43 metre end to end, with heavy
magnitude of loads per conductor points like 54 tonne
in transverse, 40 tonnes in vertical and 37 tonne in
longitudinal, and stub load of 460 tonnes uplift was
successfully tested on 14 th September 2007 for M/s.
Larsen & Toubro Ltd., Chennai for their foreign customer
Dubai Electricity & Water Authority.
Carried out preliminary inspection of failure of 33kV
cables and accessories during 11 th & 12 th September
2007 at Heavy Water Plant, Department of Atomic
Energy (Manuguru), Andhra Pradesh.
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