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Specialised Testing Facility
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On Line Short Circuit and High Voltage Test Facility
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On Line Short Circuit and High Voltage Test Facility
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A wide variety of Electrical materials, Equipment and Component are
used in Power generation, Transmission and Distribution networks and the country
has attained self sufficiency in manufacturing all these materials, equipment and
components. To ensure high quality of these equipment, testing has to be carried
out as per national, international or user specified specifications to qualify them
for their intended applications. Thus availability and access to highly sophisticated
testing facilities is a prerequisite for ensuring high quality of materials / products.
Electrical Research and Development Association (ERDA), the R&D Institution
of the Indian Electrical Industry was established to provide a wide range of sophisticated
testing facilities, many of which are too expensive for individual manufacturer
to establish and operate. Amongst the test facilities established at ERDA “On line
Short Circuit Testing” and “High voltage Impulse Testing”, facilities together meet
majority of testing needs of the industry under one roof. This brochure highlights
these two facilities.
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National Accreditation Board for Testing and Calibration Laboratories
(NABL), Govt. of India, Dept. of Science & Technology
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Intertek Testing and Calibration Services Ltd., (ASTA), U. K.
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Bureau of Indian Standards (BIS)
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Underwriter’s Laboratories (UL)
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CARAT Certificate from TUV-PS, Germany
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Govt. of India, Ministry of Scientific & Industrial Research
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Govt. of India, Ministry of Finance, Dept. of Revenue
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Govt. of India, Director General Factory Advice & Labour Institute
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Govt. of Gujarat, Commissioner of Electricity
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Govt. of Gujarat, Chief Inspector of Steam Boilers and Smoke Nuisances.
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Govt. of Maharashtra, Charity Commissioner
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Electricity Utilities of the States of Gujarat, Maharashtra, Madhya
Pradesh, Punjab etc.
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AT MAKARPURA
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AT SAVLI
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Impulse Voltage Generator
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1200 kVp (60 kJ), 800 kVp (40 kJ)
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1600 kVp (80 kJ)
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Impulse Voltage Divider
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1200 kVp, 800 kVp, 300 kVp
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1600 kVp
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H. V. A. C. Transformer
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600 kVrms
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700 kV
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Multiple Chopping Gap
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1200 kVp
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1600 kVp
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Low Resistance Non Inductive Shunts
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0.1, 0.5, 1.0 Ω
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0.1, 0.5, 1.0 Ω
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Digital Impulse Oscilloscope
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12 Bit Nicolet with software
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14 Bit Nicolet with software
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PD/RIV Measurements
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PD / RIV Measuring Instrument
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PD / RIV Measuring Instrument
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Sphere gaps
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500 mm sphere gap
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750 mm sphere gap
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ERDA has two on-line short circuit test facilities: 50kA on-line short circuit test laboratory at Makarpura and 120kA on-line short circuit test laboratory at Savli
Infrastructure
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50kA, 525V, Makarpura Laboratory
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120kA, 570V, Savli Laboratory
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66/11 kV Short Circuit Transformer
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132/33 kV Short Circuit Transformer
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Voltage variation from 82 % to 120 %
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Voltage variation from 82 % to 120 %
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11/0.436 kV, 60 kA Short Circuit Transformer,
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33/0.475 kV, 120 kA Short Circuit Transformer,
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Sequential Timer with timing of 0.1 millisecond to 9999 seconds & 32 Channels with
point on wave switching.
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Sequential Timer with timing of 0.1 millisecond to 9999 seconds & 32 Channels with
point on wave switching.
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Digitizer – 8 Channels
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Digitizer – 8 Channels
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Coaxial Shunt, Non-inductive, 80 kA rms.
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Coaxial Shunt, Non-inductive, 150 kA rms.
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66 kV Sub station/Supply line.
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132 kV Sub station/Supply line.
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Fault level of 1200 MVA at ERDA.
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Fault level of 3000 MVA at ERDA.
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Control Room of Short Circuit Laboratory
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120 kA Short – Circuit Transformer
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Sr
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Products
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Standard
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Facilities at 50 kA, 525 V S.C. Test Laboratory at ERDA, Makarpura
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Facilities at 120kA, 570 V S.C. Test Laboratory at ERDA, Savli
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1
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LV ACBs & MCCBs
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IEC:60947-2-2006
IS/IEC: 60947-2-2003
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2000 A, 415 V
upto 50 kA
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6300 A, 500 V
upto 120 kA
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2
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LV Switches, Disconnectors, SFUs
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IS/IEC: 60947-3-1999
IEC: 60947-3-2005
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500 A, 415 V
upto 50 kA
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800 A, 500 V
upto 120 kA
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3
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Contactors and Motor Starters
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IS: 13947-4-1993
IEC: 60947-4-2005
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800 A, 415 V
upto 50 kA
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800 A, 500 V
upto 120 kA
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4
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Low Voltage Fuses (HRC)
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IS: 13703-1-1993
IEC: 60269-1-2005
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800 A, 415 V
Upto 50 kA
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800 A, 500 V
upto 120 kA
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5
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Low Voltage Switchgear & Controlgear Assemblies
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IS: 8623-1&3-1993
IEC: 61439-1-2009
IEC: 61439-2-2009
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50 kA for 1 sec. & 31.5 kA for 3 secs.
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120 kA for 1 sec. & 70 kA upto 3 secs.
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6
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Electric Power Connectors
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IS: 5561-1970
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50 kA for 1 sec. & 31.5 kA for 3 secs.
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120 kA for 1 sec. & 70 kA upto 3 secs.
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7
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Distribution Transformers
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IS: 2026-1-1977
IS: 1180-1989
IEC: 60076-5-2006
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Upto 1600 kVA, 11 kV
Upto 500 kVA, 22 kV
Upto 500 kVA, 33 kV
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Upto 1000 kVA, 11 kV
Upto 1000 kVA, 22 kV
Upto 4000 kVA, 33 kV
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8
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Current Transformers
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IS: 2705 (Pt.1 to 4)-1992
IEC: 60044-1-2003
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145 kV, 31.5 kA for 1 sec.
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400 kV upto 50 kA for 3 secs.
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9
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HT Isolators with and without Earth Switches, A.B. Switches
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IS: 9920-2002,
IS: 9921-1985
IEC: 62271-102,
IEC: 60265-1-1998 & IEC: 60265-2-1998
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145 kV, 31.5 kA for 1 sec.
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245 kV upto 40 kA for 3 secs.
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10
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HT/LT Cables
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IEC: 60502-2-2005
IS: 7098-2-1985
IS: 9968-2-2002
IS: 1554-2-1988
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Upto 26.3 kA for 3 secs.
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Upto 70 kA for 3 secs.
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11
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MCBs
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IS: 8828-1996
IEC: 60898-1-2003 & IEC: 60898-2-2003
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All ratings
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All ratings
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12
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RCCBs/RCBOs
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IS: 12640-1-2008
IS: 12640-2-2008
IEC: 61008-1-2006 & IEC: 61009-1-2006
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All ratings
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All ratings
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13
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HT Panels
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IS-3427-1997
IEC-62271-2007
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50 kA for 1 sec. & 31.5 kA for 3 secs.
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120 kA for 1 sec. & 70 kA upto 3 secs.
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14
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Panels - Internal Arc Tests
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IEC-61641-2008
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50 kA, 500 V
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120 kA, 500 V
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15
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Rewirable Fuses
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IS: 2086-1993
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All ratings
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All ratings
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Other test facilities
All routine test facilities, pre and post test facilities for transformers,
current transformers and switchgear products.
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Infrastructure for bringing large trailer loaded apparatus for testing.
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8 Ton mobile crane at Makarpura and 12 Ton mobile crane at Savli
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3 Ton fork lift at Makarpura and 5 Ton fork lift at Savli
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Type test facilities for electrical products up to 400 kV class.
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Condition monitoring
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RLA studies
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Failure investigation
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Calibration
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20kA temperature rise test facility
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Air Circuit Breakers, Moulded case Circuit Breakers, Switches, Disconnectors,
Fuse combination units, Contactors, Motor Starters, Control Contactors, Miniature
circuit breaker, Residual current operated circuit breakers, Low voltage fuses,
Semi-conductor fuses, Rewirable fuses, D-type fuses, Enclosed distribution fuse
boards and cut-outs, Electrical power connectors, Metal enclosed switchgear and
controlgear, H.V. Air Break Switch, Isolators, Earthing switches, HT & LT Cables.
Current Transformers, 11 kV, 22kV and 33kV Distribution Transformers etc.
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ISI
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ISOLATOR
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B1
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SF6 CIRCUIT BREAKER
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T1
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SHORT CIRCUIT TRANSFORMER
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CTPT
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CURRENT & POTENTIAL TRANSFORMERS
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IS2
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ISOLATOR
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B2
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CIRCUIT BREAKER(BACK UP)
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B3
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CIRCUIT BREAKER (HT MAKE SWITCH)
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CL
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CHANGE OVER LINK
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S1
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SHUNTS
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T2
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SHORT CIRCUIT TRANSFORMER
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Z
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LOAD BANKS
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L
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REACTIVE LOAD
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R
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RESISTIVE LOAD
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Z1
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LT LOAD BANK
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T01
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TEST OBJECT (LT SWITCHGEAR PRODUCT)
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T02
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TEST OBJECT (DIST. TRANSFORMER)
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M
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LT MAKE SWITCH
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S2
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SHUNTS
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