Activities of CPRI 1 Insulation Division 10

Accreditations 2 Dielectric Materials Division 11

Services for Overseas Customers 2 Materials Technology Division 11
Overview of CPRI Laboratories 3 Mechanical Engineering Division 13
R & D Management Division 3 Earthquake Engineering & Vibration Research Centre 14
Distribution Systems Division 4 Power Systems Division 14
High Power Laboratory 4 Energy Efficiency and Renewable Energy Division 15
Short Circuit Laboratory 5 Utility Automation Research Center 15
Electrical Appliances Technology Division 5 Switchgear Testing & Development Station, Bhopal 16
High Voltage Division 6 UHV Research Laboratory, Hyderabad 18
Instrumentation Division 7 Thermal Research Centre, Nagpur 18
Cables and Diagnostics Division 8 Regional Testing Laboratory, Noida 19
Capacitors Division 10 Regional Testing Laboratory, Kolkata 20
Heat Run Test Laboratory 10 Regional Testing Laboratory, Guwahati 20
 Central Power Research Institute
Central Power Research Institute (CPRI) is an autonomous society under the Ministry of Power, Government of India. Set up in 1960, it
was re-organised into an autonomous society in 1978 and the institute has rendered over five decades of dedicated service to the power
sector. The institute has several research and testing laboratories engaged in different specialised fields. The headquarters of the institute
is in Bangalore and its units are located at Bhopal, Hyderabad, Nagpur, Noida, Kolkata and Guwahati.

The Activities of CPRI Cover:

Ø Applied Research in Electrical Power Engineering
Ø Independent Third Party National Laboratory for Testing & Certification of Power
Equipment
Ø Render Consultancy and Field testing services to Power Utilities and Industry
Ø Conduct Customised Training programmes for upgradation of Technical skills for
Utilities and Industry.
With the introduction of reforms and globalization, increase in system expansion and
stability needs to be addressed by way of Research & Development. CPRI coordinates
R&D activities in the field of electric power by networking with State Electricity Boards,
Distribution Companies and liaison with academic institutions engaged in Research.
Research Projects are also undertaken for augmenting Research/ Testing facilities of
CPRI. Head Office at Bangalore

CPRI has built up expertise to cater to the entire gamut of services required by the Power Sector covering Generation,Transmission and
Distribution under one roof. CPRI houses unique facilities for High Power Short Circuit Testing of power equipment, evaluation of EHV /
UHV equipment upto 1200kV rating, Power Cables and Accessories, HV & LV Power Capacitors, Power Systems Studies with Real Time
Digital Simulator (RTDS) Facility, Transmission Line Tower & Accessories Testing, Conductor Vibration Studies, Seismic Qualification,
Transformer Oil Testing, Materials Characterization, Insulation Properties, Communication Protocol Testing for Power System
Automation, Energy Meter evaluation, Testing of Refrigerators, Air Conditioners and domestic electrical appliances including LED and
SPV Lighting Systems.

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Besides, the Institute has expertise for offering Consultancy in areas of In-situ Condition Monitoring & Diagnostics of Substation
Equipment, Energy Audit, Power System Studies, Power System Protection Audit and RLA of Thermal & Hydro Power Plant
components. CPRI has been empaneled as SCADA / DMS Consultant for R-APDRP and is offering Third Party Inspection and
supervising work for two states viz Karnataka and Kerala under RGGVY Scheme. CPRI is also offering consultancy services for
Design & Development of Smart Grid Pilot Project for BESCOM.

The Institute offers Vendor Assessment for Utilities by assessing the Technical and Financial Capabilities of vendors, Third Party
Inspection Services for Power Utilities and Industry.

To enhance the technical skills, CPRI conducts Training Programs on various topics to Central / State Power Utilities.

Accreditations:
Ø Accredited as per ISO/IEC 17025:2005
Ø Member of Short Circuit Testing Liaison (STL) group
Ø Accredited by Intertek-ASTA, UK .
Ø ISO 9001:2008 Certification for Research and Consultancy activities
Ø Corporate Member in DLMS UA (Device Language Message Specification User Association) and UCA IUG (Utility
Communication Architecture International User Group)
Ø Approved by INMETRO Brazil as a Third Party Testing Laboratory for Brazil Energy Labeling Program on Transformers.
Ø Association with UL and TUV

Services for Overseas Customers:

CPRI has been addressing the Testing & Consultancy requirements of various countries abroad.The services are being utilized by
the Utilities and Industry in the countries of Middle East / Far East / South East Asia, USA, Europe, Africa, SAARC Countries.

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 Overview of CPRI Laboratories
The Institute has excellent facilities to address the requirements of the Power Sector in various specialized fields. CPRI has established
State-of-Art laboratories and over the years each laboratory has developed expertise and offers Research, Testing and Consultancy in
specific focused areas.

A brief overview of the facilities is detailed below:

1. R&D Management Division

The three schemes of Ministry of Power, Govt. of India is being coordinated and monitored by the Division viz., National Perspective Plan
(NPP), Research Scheme of CPRI (RC) and Research Scheme on Power (RSoP). Also the division coordinates various R&D activities in
the field of electric power by networking with various Utilities, Industries, Academic and Research Institutions.

Ø National Perspective Plan (NPP): The projects proposed under this scheme are focused on development of New Product /
Process Development leading to field implementation.

Ø Research Scheme of CPRI (RC): Under this scheme, the Projects are undertaken for:
£ Augmentation of Research and testing facilities
£ Improvements / New techniques in testing/ Diagnostic methods/ Research studies
£ Product / Process Improvements
£ Improvement in product standardization.

Ø Research Scheme on Power (RSoP): The aim of the Scheme is to ensure optimum utilization of the allocated fund with
emphasis on maximizing the research benefits by better management of research projects under the scheme.This is in tune with the
mandate of CPRI as an apex body for initiating and coordinating various research and developmental activities in the field of electric
power by networking with various State Electricity Boards, Distribution Companies and maintaining liaison with Academic
Institutions engaged in research connected with power systems and/ or power equipment in the country.

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2. Distribution Systems Division
Facilities:
Energy Accounting/ Audit, Analysis of the technical efficiency of the system, Estimation of Technical and Commercial losses (AT&C
losses), Design of Grounding System for HV Substations, Measurement of Soil Resistivity and Earth Resistance for different Electrical
Systems.

The Division with vast experience offers Consultancy Services to the Electricity Regulatory Commission, Distribution Utilities and
Industries of various States in estimation of losses in Distribution Networks and evaluating the benefits after the implementation of
various schemes to improve the Electrical Distribution System.

Following assignments of National importance have been taken up:

Ø Third Party Independent Agency under Rajiv Gandhi Grameen Vidyutikaran Yojana
(RGGVY)
Ø Third Party Independent Evaluation Agency - Energy Accounting under R-APDRP
Ø Third Party Independent Agency under Niranthara Jyothi Yojana (NJY)
Ø TPIA in various distribution companies like BESCOM, CESC, GESCOM, HESCOM,
MESCOM and HRECS, Hukkeri of Karnataka, KSEB -Kerala.

3. High Power Laboratory

Monitoring of RGGVY Works
Test facilities:
High Power testing of Power Transformers, LV and HV Equipment, Synthetic testing facility for EHV Circuit Breakers

2500MVA Short Circuit Generator 250MVA, 237/15.75KV Power Transformer Under Test
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Ø Houses 2500MVA, 14kV Short Circuit Generator and has Direct Testing facility of 2500 MVA capacity at 36/72.5 KV in three
phase and 1400 MVA capacity, up to 245 kV in single phase for testing of Circuit Breakers
Ø Short circuit withstand capability tests on Power Transformers, Wave Traps, Reactors, Insulator Strings, Lightning Arresters etc.,
Ø Short time current test up to 300kA rms for 1 sec on Busducts, CTs, Isolators, Panels, etc.
Ø Synthetic Testing Facility for High Power testing of EHV Circuit Breakers up to 40kA, 245kV full pole and unit testing of EHV
Circuit breakers beyond 245 kV level.

4. Short Circuit Laboratory

Test Facilities:
Tests on Low Voltage Switchgear & Controlgear, Distribution Transformers

Ø Two 50 MVA Short Circuit Generators with the new Generator capable of testing at
50/60Hz
Ø Facilities include short time withstand current test up to 50kA rms for one second on
LT/HT Panels, busducts etc..
Ø Short circuit test on Distribution Transformers up to 1 MVA, 11kV
Ø Breaking capacity test on LV fuses, Short time current test on CT's up to 132 kV class
50MVA Short Circuit Generator
Ø DC Short Circuit test facility of 600V, 30kA for 3 sec.

5. Electrical Appliances Technology Division

Test Facilities:
Ingress Protection, Check testing facility for BEE star labeled products, Fan Testing,
Battery Testing.
Ingress Protection Testing Laboratory (IP Lab)
Testing of all Electrical Equipment enclosures for degree of protection as per
IP Test Chamber
IS/IEC 60529; IS/IEC 60947-1:2007; IS/IEC 61439 and IEC 60529 Edn. 2.1 2001-02.
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Refrigerators & Air Conditioners Testing:
Ø Refrigerators of Direct Cool and Frost Free type up to 600 litres capacity
Ø Facility can accommodate four Refrigerators of similar type at once for testing
Ø Performance Evaluation of Air-Conditioners up to 3 TR capacity of unitary, window
and split type and non-ducted type Air-Conditioners and Heat Pumps.

Fan Testing Laboratory: Refrigerator testing in Progress

Ø Tests on Ceiling Fans and Table Fans as per IS 555:1979; IS 374:1979, IS 1169:1967 and also as per BEE Schedule for star rating under
BEE's Standards and Labeling Program.

Battery Testing Laboratory:

Ø Tests on Automotive Batteries and Stationery Cells as per IS 7372 -1995 (3 amnd-2007) and IS 1651 -2013.
Ø Secondary Cells as per IEC 61427, Tubular Batteries as per IS 13369 -1992 amnd 2 -2003, Valve Regulated Lead Acid Batteries
(VRLA) as per IS 15549 -2005 and JIS C8702-1.

6. High Voltage Division

Test Facilities:
High Voltage Tests on Power Transformers, Current Transformers,
Potential Transformers, Air Break Switches, Isolators, Cables,
Bushings, Insulators, Power Line Accessories etc. up to and
including 400 kV system.

Ø ImpulseVoltage Generator of 3 million volts, 150 kJ.

Ø Power frequency Cascade Transformers setup of 1800 kV (i.e. 3
nos. of 600 kV) and Artificial Rain Equipment for wet tests
Ø 50 tonne Universal Testing Machine for Electro Mechanical /
Impulse Current Generator
Mechanical test.
Impulse Voltage Generator
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Pollution Laboratory:
Ø Dimensions of 12Mx12Mx12M and an array of nozzles confirming to IEC specifications combinedwith salt water pumping
and air compressor provide the required salt fog
Ø Pollution tests on insulators by salt for solid layer method can be conducted up to 400 kV AC and 150 kV DC.

Impulse Current Laboratory:

Ø Comprehensive facility for testing of Zinc Oxide elements and ZnO arrester pro-rated sections up to 11 kV rating as per
IEC 60099-4 and IS 3070 Part III
Ø Unique Computer-controlled Impulse Current Generator of rating 100kV, 150kJ incorporating all conceivable features in a
single consolidated design
Ø All type tests on ZnO arrester elements up to 6 kV voltage rating.

Thermo Mechanical Test Chamber:

Ø The dimensions of the chamber is 45 m x 0.15m x 1m
Ø Bending moment test on arrester units of voltage rating varying from 9kV to 156kV (maximum unit length of 2000 mm
approximately)

Consultancy Services are being offered for Pollution level measurements at sites enrouting transmission line, AC electric and
magnetic field measurements under transmission lines and sub-stations, DC electric and magnetic field and ionic current
measurement under transmission lines and sub-stations, Online leakage current measurement of lightning arresters in
generating stations/substations.

7. Instrumentation Division
Test Facilities:
Energy Meters, Metering Protocol Laboratory and Calibration Services.

Energy Meter Testing:

Ø Type Testing of electromechanical meters and electronic meter of accuracy class

0.2 to 2.0 and Performance test of sub-standard meters
Ø Acceptance Test and Routine Tests as per the Utility requirement. Energy meter Test Bench 7
The laboratory offers consultancy services in the areas of Mobile Testing of Energy Meters at site as per IS 15707:2006 (from RTL,
Noida), Third Party Inspection of Energy Meters, Investigation and Analysis of Tampered Meters referred by Utilities, Judicial Courts,
Police Department etc.

Calibration Laboratory:
Ø Facility for testing at both Lab and at Site
Ø Equipped with Three Phase High Precision Comparator of 0.01 class accuracy, Three Phase Phantom Load Source and Three
Phase Precision Measuring Instrument of 0.02 Class Accuracy in two versions (Direct mode: upto 20A, With CT: upto 100A).

Set up for calibrating 0.02 Class Reference Sub Standard Energy meter at Lab

Metering Protocol Laboratory:

Ø Conformance Testing of Energy Meters to IEC 62056 (DLMS/ COSEM) and as per
IS 15959 - Indian Companion Specification for Energy Metering Protocol.

8. Cables and Diagnostics Division

Test Facilities:
Diagnostic Testing & Condition Assessment Studies on High Voltage Substation and Power Plant Electrical Equipment in service, Power
Cable Testing, Flame Retardant Low Smoke Cables Laboratory.
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Cables Laboratory:
Ø Power Cables and Accessories like Indoor and Outdoor Terminations and straight through joints XLPE cables up to 400 kV rating
Ø Pre-Qualification tests on Cables & Accessories upto 400kV.

220kV Cable Under Test 2400 kV, 132 kV,

240 kJ Impulse Generator Cable testing in progress
Diagnostic Laboratory:
Ø Condition Assessment / Life Evaluation of High Voltage Power Equipment like Power Transformers, Hydro & Turbo Generators,
Power Cables, Large AC Motors, Current Transformers (CTs), Capacitance Voltage Transformers (CVTs), Circuit Breakers,
Lightning Arrestors etc. in service
Ø Mobile Test Laboratory for on-site accuracy testing of EHV class CTs andVTs.

On-site Diagnostic Tests On- Site PD Testing

Flame Retardant Low Smoke (FRLS) Laboratory:

Fire reaction tests on electric cables, insulating and composite materials.
Consultancy service is offered for Diagnostic Tests at site, Failure Analysis of Power Cables, On-Line Partial Discharge
Measurement on Power Transformers in services.
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9. Capacitors Division:
Ø Evaluation of LV and HV Power Capacitors
Ø LV APFC Panels upto 500 KVAR, 440V including
Temperature Rise Test at Elevated Ambient
Temperature of 55 °C
Ø Environmental Tests on Various Equipment - Electrical,
Mechanical, Automobile, Medical, ATMs etc.

Capacitor Testing in Progress

10. Heat RunTest Laboratory:

Facility for Temperature Rise Test up to 10,000 Amps on
Distribution Boards, LT and HT Bus ducts, Isolators,
Circuit Breakers, Control Panels, CTs & PTs etc.

HV Breaker Under Test Heat Run Test on Pantograph

Current Collector

11. Insulation Division:

Test Facilities:
Electrical, Mechanical and Electro-chemical Tests on various Solid Insulating Materials like
Paper, Press Board, Polymeric Moulding Materials, Insulating Coating, B-stage Epoxy Mica,
Epoxy Glass Materials etc.

Climatic Ageing Test Facility 10

12. Dielectric Materials Division

Test Facilities:
Testing of Transformer Oil, Lubricating Oil, Polymer composites, Management of Poly
Chlorinated Biphenyls and their final disposal.

Liquid Dielectrics Laboratory : Testing of New Oils for Transformers as per IS 335 &
IS 12463 and IEC 60296 – 2012, In-Service oils as per IEC 60422 & IS 1866-2000, Furan
Analysis, Dissolved Gas Analysis.
Oil Testing - View of IEC lab
Lubricating Oil Laboratory:
Ø Evaluation of oils used in turbine oil lubrication and hydraulic oils, used widely in power sector
Ø Evaluation of the oils for hazardous chemicals such as Poly Chlorinated Biphenyls in various lubricating and other oil matrices.

Polymer Laboratory: Evaluation of polymeric composites for thermal, thermo mechanical and calorimetric profile evaluation
with temperature which helps in identifying polymers and their performance under various operating conditions.

Consultancy services and third party inspection for new oils are also offered.

13. Materials Technology Division

Test Facilities:
Materials characterization, CRGO and CRNGO electrical steels for transformer
applications, assessment of remaining life of thermal and hydro power plant components,
failure analysis, wear, erosion & corrosion studies and environment studies including
industrial solid waste utilization.

CRGO Facility - Stacking Factor Tester (SFT 300)

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Ø Fuel Evaluation: Coal quality characteristics, coal combustion studies, CFD
Modeling & performance audit for TPS.

Ø Materials Engineering and Characterization: Materials evaluation using

Analytical Facilities viz. SEM, XRD, XRF, Microscopy, Spectroscopy and Evaluation of
electrical steels.

Ø Condition Assessment and Remaining Life Estimation: Evaluation of

thermal and hydro plant components involving advanced Nondestructive Evaluation
(NDE), Corrosion Mapping, Piping and Hanger Inspection, Field Metallography and
Material Identification, Fibroscopy, IR Thermography, Internal Rotary Inspection XRD Facility
System.

Ø Mechanical Engineering and Wear Testing: Creep, hardness, tensile

strength, fatigue, impact, residual stress, wear and erosion studies, structural
integrity & failure analysis studies damage tolerance studies.

Ø Center for Industrial Solid Waste Utilization (CISWU): Value added

products from fly ash and cenospheres, establishment of technology demonstration
centers, condition assessment of civil structures of hydro and thermal plants,
evaluation of Electrostatic Precipitator.

Consultancy Services are offered in Assessment of Methodology of Sampling and

Analysis of Coal, Evaluation of Porcelain Insulator Materials, Performance Assessment of
Coal Mills, Cooling Towers, CFD Modeling Studies, Performance Optimization Studies of
Combine Cycle Plants, Assessment of Wear and Erosion life of High Temperature Boiler Tile Making Unit
Components, Comprehensive Characterization of Fly Ash Cenospheres, Condition
Assessment of Civil Structures of Thermal and Hydro Plant, Establishment of Technology
Demonstration Centers for Fly Ash Utilization.

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14. Mechanical Engineering Division
Test Facilities:
Transmission Line Towers, Overhead Conductors, Steel Poles and Transmission Line Accessories Testing, Wake Simulation and Vibration
Studies, Structural Material Testing, Designing of Towers for New Transmission Lines and Analysis, FRP Composite Tower
Tower Testing Station (TTS):
Ø Tower Types that can be tested are Square, Rectangular and Triangular base
Ø Maximum base width of 26m x 26m square base with 22 x 11m rectangular base
Ø Taller Tower up to 75 m have been tested.
Structural Material Testing: The laboratory has Universal Testing Machine with capacity of 600 KN used for pre / post testing
calibration of load measuring equipment which is a pre-requisite for full scale testing of transmission towers.

Vibration Laboratory: Type tests of ACSR / AAAC Conductors and other transmission line accessories.

Wake Simulation Laboratory: Vibration Test on Assembly Insulator Strings and Hardware up to 765 kV HVAC and ± 800 kV
HVDC Transmission Line with Six Bundle Conductor Configuration.

Vibration test on ± 800kV Suspension Insulator Steel Tubular Pole Under Test Testing of Tower
String with Six Conductor Bundle Configuration
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15. Earthquake Engineering and Vibration Research Centre
Test Facilities: Seismic and Vibration Qualification of Instruments/ Electrical
Equipment for Power Plants and Substations

Ø Equipped with Tri-axial shaker system with six degrees of freedom capable of
performing a diverse range of Seismic Qualification test requirements on equipment
subassemblies and components
Ø Table Size is 3.0 x 3.0 m with Pay Load: 10 T and max height of the specimen 10 m
Ø Frequency Range of 0.1 to 50 Hz. Seismic Qualification of 420 kV
Dead Tank CT
Dynamics Laboratory:
Ø Experimental verification of safe functional capability of components under vibrational and shock loads
Ø Force rating (Sine) of 26.7 kN and Frequency range: 5 to 3500 Hz
Ø Climatic chamber with vertical vibration interface useful in examining the performance of components instruments when they
are subjected to change in temperature, humidity and vibration
Ø Facilities for drop test and shock test for behavioral study of equipment during transit.

16. Power Systems Division

Test Facilities:
Power System Simulation Services using Real Time Digital Simulator (RTDS), including Real
Time Performance Analysis of various types of Controllers such as FACTS, HVDC, SVC and
Protection Relays,Third Party Protection Audit of 220 kV, 400 kV Substations and Generating
Stations, Relay Testing.

RTDS: Facility with advanced software features can be used for Simulation of large in-land
power grids, wind farms, very fast electromagnetic transients at simulation time steps below
RTDS Facility
250 nanoseconds with FPGA technology, Real time simulation, integration and hardware-in-
the- loop testing of power electronics controllers and protection devices .

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Relay Testing Laboratory: Equipped with sophisticated Computerized Relay Testing Systems capable of performing tests
on Power System Protection Relays used to protect Generator, Transformer, Bus Bar, Transmission Line, Reactor, Motor,
Capacitor etc.
Consultancy Services also offered in SSR Studies, Power System Studies, Reactive Compensation Studies, Dynamic Testing of Relays,
Protection Coordination Studies, Relay Coordination Studies,Third party Audit of Protection System.

17. Energy Efficiency and Renewable Energy Division

Test Facilities:
Renewable Energy Devices Testing and Energy Audits

Renewable Energy Devices Testing: UPS, off-grid and grid tied Inverters, LEDs,
Compact Fluorescent Lamps (CFL), Fluorescent Tubular Lamps (TFL), Solar Photovoltaic
Lantern (Approved by Ministry of New & Renewable Energy, Government of India), Solar
home lighting and street light controllers, Solar water pumping system

Consultancy Services: Energy audits and Energy efficiency service for several energy
Testing of Solar Photovoltaic
Intensive industries, Thermal Power Stations (TPS), Hydel Power Stations (HPS), Captive lighting products
Power Plants, Port Trusts, Oil Refineries, Refrigeration and Air Conditioning Plants, Hospitals,
Hotels, Airports etc. Field Testing of Street Light Controllers, Rural Micro Grids, Etc.,

18. Utility Automation Research Center

This division provides in-house IT Support, by way of Webhosting,Webmail, IT Infrastructure and Facility Management Services. It also
hosts and maintains a "Knowledge Management Portal (Gyanshakti)" for sharing knowledge, expertise opinion and experience.

DNP3 CertificationTesting Laboratory [DNP Lab]:

Ø Conformance testing of DNP3 Subset Level 1 or DNP3 Subset Level 2 as per the procedure defined in DNP3 Intelligent Electronic
Device (IED) Certification Procedure Subset Level 1 Version 2.6 rev1 28-October-2010 and DNP3 Intelligent Electronic Device
(IED) Certification Procedure Subset Level 2Version 2.6 rev1 28-October-2010.
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Substation Automation System Laboratory [SAS Lab]:

Ø Testing of IED [Intelligent Electronic Device] for conformance in accordance with IEC
61850, the standard titled “Communication Networks and Systems in Substations”.

Smart Grid Laboratory:

Ø Site study and preparation of DPR, RFP, Evaluation of SI, PMC, Implementation supervision
Ø Consultancy in building Smart Grid system and testing of subsystems of Smart Grid Components
Ø AMI/ Smart Grid feasibility studies
Ø Design and Development of Smart Grid Pilot for BESCOM
Ø Preparation of the DPR for the Smart Grid project of utility - AP CPDCL and Project Management Consultancy Service
Ø Establishment of Smart Grid Test Bed for performance evaluation of Systems, Products and Technologies for Smart Grid Designs.

Consultancy Services are offered for Automation Projects such as SCADA Consultancy Service for the seven towns of Andhra Pradesh
DISCOMs, Project Management Service for Bangalore City DAS project for BESCOM, Integrated Extended SCADA project for KPTCL,
implementation of SCADA for water supply to Mysore for KUWSDB, Preparation of DPR for Cochin City Automation.

19. Switchgear Testing & Development Station, Bhopal

Test Facilities:
Short Circuit testing of Power Transformers, LV and HV Switchgear, Energymeter Testing,
Calibration Laboratory, Transformer Oil Testing

Station 1: Direct Short Circuit Test station of 1250 MVA at 12kV Capacity utilizing two
specially designed 1500MVA Short Circuit Alternators for conducting short circuit tests
on High and Medium Voltages Switchgears, Transformers and other allied equipment.

1500MVA Short Circuit Generator

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Station 2: On-line Testing Station with 100 MVA power from the MPSEB grid caters to short circuit tests on low voltage switchgears,
transformers and other allied equipment.

SupplementaryTest Facility: 2400kV, 240kJ ImpulseVoltage Generator for Impulse Test on Equipment upto 400kV class.

Ø Short circuit dynamic and thermal withstand test facility for distribution and power transformers of rating maximum up to
40MVA, 132/33kV class
Ø Transformer loss measurement facility up to 40MVA, 132/33kV class Power Transformers
Ø Short circuit tests up to 200kArms, 1100 Volts; 200kArms for one second or 100kArms for 3 seconds
Ø Temperature rise test facility up to 25kA in three phase set up
Ø Temperature rise test and loss measurement facilities up to 25MVA, 132kV class power transformers
Ø Internal arc fault test facility for metal enclosed switchgear and motor terminal boxes
Ø DC test facility up to 80kA, 1550 V for testing DC Switchgear
Ø Energy Meter test facility
Ø EMC/ EMI test facility for full compliance as per National and International standards for electronic equipment/
instruments/components.
Ø Transformer oil test facility for New Oil and Serviced Oil.

2400kV, 240kJ Impulse 800kV, 3150A High Current Transformer and Test Cell
Voltage Generator Disconnector Under Test
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20. UHV Research Laboratory, Hyderabad
Test Facilities:
Testing of High Voltage, UHV Equipment / Components upto 800kV/1200kV
Ø Impulse Generator of 5MV, 500 kJ with 25 stages and a height of 23m; 1600 kV,
9600 kVA Cascade Transformers
Ø Outdoor ± 1200kV DC test system for dielectric and pollution tests on all
equipment rated up to ± 800kV DC
Ø Experimental transmission line of 720 m to study the radio noise, audible noise,
corona loss etc, mock-up tower to carry out air insulation studies HVDC Generator
Ø Houses one of the largest Pollution test chamber in the world with a diameter of
24 m and a height of 27 m for Salt fog test on insulators, bushings etc. up to 800
kV class
Ø Accuracy Measuring System for Instrument Transformers.

Consultancy Services is offered in Electromagnetic Interference Studies and Audible

Noise Measurements for HV AC/ DC Transmission Lines, Investigation of Mechanical
Condition of windings of the power transformers at site using Frequency Response
Analyser.

21. Thermal Research Centre, Nagpur 1200kv Insulator Strings Under Test
Facilities:
Life Assessment, Renovation and Modernization and Life Extension studies, Non Destructive Evaluation (NDE) of Thermal
Power Station Plant Equipment like Boilers, Turbines and Condensers etc, Condition Assessment of RCC and Steel
Structures.

Ø Failure / Metallurgical Analysis of Power Plant / Process Industries Components

Ø Energy Conservation in Power Plants and improvements in efficiencies of Combustion Auxiliaries and Interconnected
Systems

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Ø Insulation Audit, Steam Audit, Hot Spot Measurement in Boilers, Switch Yards,
Transformers etc. i.e. Thermographic Inspection
Ø Flaws/ crack depth in weld joints and other parts of the equipment by ultrasonic
TOFD
Ø In-situ Oxide scale measurement in Super Heater and Re-heater tubes and life
estimation
Ø Condition assessment and end of functional service life Evaluation of RCC and STEEL
structures in Thermal Power Plants and Process steam Industries.

22. Regional Testing Laboratory, Noida

RLA of Hydro Plant
Test Facilities:
High Voltage Laboratory, Liquid Dielectric Laboratory, Cables Laboratory, Diagnostics
Laboratory, Meter Testing Laboratory

High Voltage Lab:

Ø Impulse Voltage Generator of 1000kV, 100kJ
Ø Lightning Impulse Voltage withstand test on Power/Distribution Transformer up to 25MVA
Ø Instrument Transformers up to 132kV, HV Switchgears, Busducts, Fuse Units up to 132kV,
Insulators up to 66kV
Ø Temperature Rise Test set up of 6kA

Cables Laboratory:
Ø DC Test facility up to 5kV DC, 50mA and AC Power Frequency Test Facility up to 60kV,
150mA
Ø Tests on Cables and Accessories - all type tests on XLPE Cables up to 33kV
1000kV, 100kJ Impulse
Ø PVC Insulated, PVC Sheathed Cables up to 11kV
Voltage Generator
Ø FRLS Tests on cables and insulating materials

Liquid Dielectric Lab:

Facilities for testing Transformer Oils as per IS: 1866.
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Diagnostic Lab: Various diagnostic tests can be carried out at lab and on field viz.
Ø Capacitance and Tan Delta Measurements
Ø Sweep Frequency Response Analysis
Ø Thermo Vision Camera
Ø Very low Frequency Tan Delta/ Partial Discharge on cables
Ø Electromagnetic Core imperfection/ Wedge Tightness Detector on Generators on Power Equipments, Substation Equipments
and Generating Equipments.

Mobile Testing Laboratory for Energy Meter: Facility for Energy Meter Testing at Consumer Premises on behalf of Power
Utilities.

23. Regional Testing Laboratory, Kolkata

Test Facilities:
Ø Testing of Insulating Oils in Power Transformers as per IS 1866-2000 and Dissolved
Gas Analysis for assessing the internal condition of the transformers
Ø Test facilities like Ultra High Performance Liquid Chromatography (UHPLC) to
evaluate Furfural content for assessing the condition of solid insulation in Power
Transformers.

The Unit caters to the testing requirements of Electrical Power Equipment Manufacturing Oil Testing Lab
Industries, Utilities and Consumers in the Eastern region.

24. Regional Testing Laboratory, Guwahati

Test Facilities:
Ø Testing of Insulating Oil filled in Power Transformers as per IS 1866-2000 and Dissolved
Gas Analysis on Power Transformers
Ø The Unit caters to the testing requirements of electrical power equipment
manufacturing Industries, Utilities and Consumers in the North-Eastern region.

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