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Specialised Testing Facility
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120 kA On Line Short Circuit Test Facility
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120 kA On Line Short Circuit Test Facility
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A wide variety of electrical equipment such as power transformers, current transformers, switchgear & controlgear products, cables etc. are used in transmission and distribution networks of the power sector. The conformance of these products to standards/specifications is crucial for the reliability and safety of electrical equipment. The availability and access to highly sophisticated testing facilities is a pre-requisite for ensuring high quality of materials and products. ERDA has established many testing facilities for testing large variety of materials and products.
ERDA has three On-line Short Circuit Test Stations for LT Switchgears. Station-1 was setup in 1998 and Station-2 has been setup in 2012 at ERDA’s Makarpura, Vadodara complex. These stations have test capabilities upto 50 kA, 525 V and 1.6 MVA, 11 kV Transformers. Station-3, which was setup in the year 2007, at Savli has an on-line short circuit test facility of capacity upto 120 kA, 570 V for LT Switchgears and Distribution Transformers up to 4 MVA, 33 kV rating. It is the largest on-line short circuit test facility in India. It has state-of-the-art equipment and infrastructure and happens to be one of the most modern Short Circuit Test Facilities in the world. With these three short circuit test stations ERDA is the largest low-voltage short circuit test facility in Asia. With these facilities, ERDA is able to serve the electrical industry and utilities more efficiently.
ERDA’s Short Circuit Testing Laboratories are well-known independent laboratories for testing and certification of medium and low voltage components used in the electrical industry. They conduct tests and issue Type Test Certificates and Test Reports for tests on Cables and Connectors, Distribution Transformers, Instrument Transformers, Switchgears, Panels, Busducts and other components and products. These laboratories are being utilized by various industries, power utilities and certifying bodies, BIS for more than 10 years. Other prominent users include, Intertek Testing and Certification Ltd., (ASTA), U.K., UL etc.
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Intertek Testing and Certification Ltd., (ASTA),UK
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Control Room
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Underwriters’ Laboratories (UL), USA
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National Accreditation Board for Testing and Calibration Laboratories (NABL), Govt.
of India, Dept. of Science & Technology
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Bureau of Indian Standards (BIS)
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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, Chief Inspector of Steam Boilers and Smoke Nuisances.
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Govt. of Maharashtra, Charity Commissioner
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Govt. of India, Petroleum Explosive and Safety Organization, Nagpur
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Utilities of Gujarat, Maharashtra, Rajasthan, Madhya Pradesh, Punjab, Haryana, Jammu
& Kashmir, Tamil Nadu, Uttar Pradesh and Chhattisgarh etc.
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120 kA Short Circuit Laboratory at Savli
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50 kA Short Circuit Laboratory at Makarpura
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132/33 kV Short Circuit Transformer: Voltage variation from 82 % to 120 %
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66/11 kV Short Circuit Transformer: Voltage variation from 82 % to 120 %
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33/0.475 kV, 120 kA Short Circuit Transformer: Low impedance
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11/0.475 kV, 120 kA Short Circuit Transformer: Low impedance
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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, 150 kA rms.
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Coaxial Shunt, Non-inductive, 70 kA rms.
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132 kV Sub station/Supply line at Savli.
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66 kV Sub station/Supply line at Vadodara.
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Fault level of more than 3000 MVA at ERDA.
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Fault level of more than 1200 MVA at ERDA.
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Distribution Transformers:
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 Measuring System
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Thermal & Dynamic ability to withstand short circuit tests upto 33 kV, 4000
kVA distribution transformers
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Thermal & Dynamic ability to withstand short circuit tests upto 11 kV, 1000
kVA distribution transformers
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Thermal & Dynamic ability to withstand short circuit tests upto 22 kV, 1000
kVA distribution transformers
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Current Transformers:
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Short time withstand current test upto 400 kV class, 50 kA for 3 Seconds or 120
kA for 1 sec.
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Switchgear & Controlgear Products:
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120 kA, 570 V Short circuit making & breaking capacity.
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120 kA for 1 sec. or 70 kA for 3 sec. short time withstand current test
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120 kA, 570 V breaking capacity for HRC fuse link.
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Performance of integrally fused circuit breaker.
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All other pre & post tests as per National and International Standards.
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Sr. No
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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:60947-2-2009
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: 60947-3-2008
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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/IEC: 60947-4-1-2000
IEC: 60947-4-1-2009
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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: 60269-1-2006
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800 A, 415 V
Upto 80 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: 1180-1-2-1989
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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66 kV, 31.5 kA for 1 sec.
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550 kV upto 120 kA for 1 sec. & 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: 9920-2-2001
IS: 9921-2-1982
IEC: 62271-102-2001
IEC: 60265-1-1998
IEC: 62271-104-2009
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33 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/IEC:60898-1-2002
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: 61008-1-2009
IEC: 61009-1-2009
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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-62271-1-2007
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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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Impulse Test 1600 kVP, 80 kJ
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High Voltage one minute Power Frequency Test Dry & Wet 700 kV, 350 kVA
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Type Test facilities for Distribution Transformers
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Type Test facilities for Current Transformers
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Temperature Rise Limit upto 10,000 A, 10 V
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Mechanical Durability
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Electrical Durability
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Rated Making & Breaking Capacities
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Conventional Operational Performance
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Time Current Characteristics
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Mechanical Strength of Terminals
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28 Days Test – for MCB & RCCB
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Resistance to Abnormal Heat and Fire
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Protection against Electric Shock
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Resistance to rusting
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Environmental Tests
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10m Anechoic Chamber for EMI/EMC tests
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EMI/EMC Test Facilities for “CE” marking
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IP tests (Degree of protection) 40 Tonne
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Dynamic Testing of the Relays
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ERDA can witness tests on HV Circuit Breakers for Mechanical Endurance, Temperature
Rise Test, Dielectric Test at manufacturer’s premises.
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14 Tonne Mobile Crane
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5 Tonne Forklift
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Shed with 10 Tonne crane for handling test samples
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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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Enclosure test facility as per UL, NEMA and CSA Standards
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Upgradation of Short Circuit Level of Low Tension Air Circuit Breaker.
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Remote operated 11 kV Load Break Switch and MCCBs.
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Transient Response of 400 kV CT.
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Development of DC MCBs for 5 kA, 130 V DC Fault Level.
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Development of Fault Current Limiter (FCL) for LT Switchgear & Appliances
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Internal Arc Test on Panels.
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Short Circuit Withstand Test superimposed on Temperature Test at 50 kA for 1 sec.
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Mr. Joop Hooijmanns, Manager, High Power Laboratory, KEMA
Mr. Paul P. Leufkens, President and General Manager, High Power Laboratory, KEMA
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Mr. Schweiger, R&D Head, Siemens Germany
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Mr. Martin Eiselt, Siemens Germany
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Mr. Jun Harayama, Japan Electrical & Environmental Tech Laboratory, Japan
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Mr. Marco Liu, Pacific, MK, Malysia
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Mr. Sung Puay Kiang, President, Sunlight Electricals, Singapore
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Mr. Peter Yap, Evergrow Electrical Engineering, Malaysia
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Mr. Million Matusala & Mr. Jan-Erik Johnsson Hitaboy, Finland
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Short Circuit Station-2
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