GROUP POWER SYSTEM CONSULTANTS POWER-LINKER REFERENCE LIST : VERY LOW FREQUENCY (VLF) Given below is a list of Very Low Frequency (VLF) job executed by us: SR. 40.0 Cairn India Ltd., MPT Barmer Cable 6.6 kv Three Core Cable -3 nos. a. Insulation Resistance and Polarization Measurement, c. Capacitance and Tan Delta Measurement. 39.0 Bharat Oman Refinaries Ltd. (BORL), Bina (M.P) The scope of work involves carrying out following measurements on 33 kv s by Very Low Frequency Test method. a. Insulation Resistance Measurement, c. Capacitance Value Measurement and d. Tan Delta Value Measurement. 38.0 KEC International Ltd. (BORL, Bina) Utility Boiler S/S Grid Incomer-1 & 2 6.6kV Cable Condition Monitoring Testing 37.0 Cairn India Ltd., Suvali GTG-B Cable Partial Discharge Testing Partial Discharge Cable Page 1 of 7
36.0 Bharat Oman Refinery Ltd., Bina 35.0 Reliance Industries Ltd., Dahej 34.0 Gujarat State Kosamba 33.0 Essar Steels Ltd., HBI, Hazira a. Cable Condition Monitoring Testing of HT Cables. Test Includes : i. Very Low Frequency (VLF) Tan Delta Measurement. ii. Very Low Frequency (VLF) Partial Discharge Measurement. b. Power s. c. Online Condition Monitoring Testing of 132 kv Lightning Arrestors. d. AC High Voltage Leakage Current Measurement and Partial Discharge Measurement of PT s and Bus Support Insulators. Cable 33 kv s by Very Low Frequency (VLF) test method. a. Tan delta Measurement. b. Partial Discharge Measurement. Diagnostic Partial Discharge Measurement by Very Low Frequency (VLF) method of 6.6 kv s. Cable, a. Generator Rotor and b. Exciter Stator and Rotor. a. s b. Lightning Arrestors c. Power s d. PD of Support Insulators 32.0 Reliance Industries Ltd., Silvassa OFFLINE PD testing (By VLF) of 22 kv HT Cable. Page 2 of 7
31.0 Cairn India Ltd., Suvali 30.0 Reliance Industries 29.0 Gujarat State Kosamba Cable 6.6 kv Three Core Cable - 4 nos. a. Insulation Resistance and Polarization Measurement, c. Capacitance and Tan Delta Measurement and d. Partial Discharge Measurement. Cable 33 kv Three Core Cable: 6 nos. a. Insulation Resistance and Polarization Measurement, c. Capacitance and Tan Delta Measurement and d. Partial Discharge Measurement. Very Low Frequency (VLF). Tan delta of 6.6 kv cables : a. Single Core 13 Nos. b. Three Core 11 Nos. 28.0 Gujarat State Nandesari, Polymer Unit The scope of work includes testing of s by Very Low Frequency True Sine Wave test method with test voltage upto 2Uo : (Uo: Phase Voltage) a. Insulation Resistance Measurement, Page 3 of 7
b. A C Leakage Current Measurement, c. Capacitance Value Measurement and d. Tan Delta Value Measurement. 27.0 Reliance Industries Ltd., Silvassa 26.0 Gujarat State Vadodara 25.0 Gujarat State Sikka Unit 24.0 Petronet LNG Ltd., Dahej Very Low Frequency (VLF) Tan Delta of 36 nos. Single Core 33 kv Cables. Very Low Frequency (VLF) Partial Discharge Testing of s. Very Low Frequency (VLF) Tan Delta and Partial Discharge Testing of 11 kv Cables. Very Low Frequency (VLF) Partial Discharge Testing of s. 23.0 Reliance Industries 22.0 Gujarat State Chemicals Limited,Vadodara 21.0 Petronet LNG Ltd., Dahej Very Low Frequency (VLF) Test Method for 33 kv s. cables by Very Low Frequency Test Method for 11 kv. a. Gas Turbine Following equipments: a. 5 x 7.5 MW : Gas Turbine Generators b. Generators and Page 4 of 7
b. 50 nos : H.T. Cables by Very Low Frequency Test Method. 20.0 Petronet LNG Ltd., Dahej, 19.0 Lustre Engineering Corporation 18.0 Reliance Industries Ltd., Vadodara 17.0 Reliance Industries following equipments : a. 4 nos : 31.5 MVA, 220/11 kv Generator. b. 2 nos : 20 MVA, 66/11 kv Power. c. 16 nos : 11 kv testing by Very Low Frequency Test Method. d. 18 nos : 220 kv CTs. e. 18 nos : 220 kv CVTs. f. 30 nos : Online Testing of Lightning Arrester. 6.6 kv s by Very Low Frequency test method at RIL Kurkumbh. OFFLINE Partial Discharge Measurement of 33 kv and 11 kv Cables. Condition monitoring testing of approx 300 nos. 33/6.6kV cables by Very Low Frequency (VLF) Test Method. a. Generator b. Power c. d. Current (CT) e. Capacitive Voltage (CVT) f. Lightning Arresters 16.0 ACC Limited, Wadi VLF test method for 42 nos. 1 Core cables and 6 Nos. 3 Core cables. Page 5 of 7
15.0 Deepak Fertilizers and Petrochemicals Corp. Ltd. Taloja 14.0 Deepak Fertilizers and Petrochemicals Ltd. Taloja 13.0 Reliance Industries. 12.0 Reliance Industries Ltd., Vadodara 11.0 Reliance Industries. 10.0 Reliance Industries 9.0 Reliance Industries 3.3 kv cables by Very Low Frequency (VLF) test method. 16 Nos. 3.3 kv cables by Very Low Frequency (VLF) testing method. 6.6 kv cables, 11kV cables and 33kV cables by Very Low Frequency (VLF) testing method. 400 Nos. 33 kv / 11kV and 6.6 kv cables by Very Low Frequency (VLF) testing method. 33 kv cables for 2 Nos. Grid s and 1 No. Reactor 9 Nos. 33 kv cables and 2 Nos. 6.6 kv (3.1 KM) cables proof testing by VLF test method. Testing of 51 Nos. 1C x 630 sqmm, XLPE, Aluminum, 19 kv / 33 kv, 900 Meters HV cables. 8.0 Bharat Petroleum Corporation Ltd., Mahul Testing of 22 kv cables at Bharat Petroleum Corporation Ltd., Mahul Page 6 of 7
7.0 Century Enka Ltd., Pune 6.0 Reliance Industries 5.0 Reliance Industries 4.0 Reliance Industries Ltd., Dahej 3.0 Reliance Industries 2.0 Reliance Industries Condition Monitoring testing of Cables by VLF testing. a. 15 Nos., 3 core, 22 kv Cables. b. 15 Nos., 3 core, 6.6 kv Cables. c. 14 Nos., 1 core, 6.6 kv Cable 82 Nos. 6.6 kv three core cables, 18 Nos. 11 kv cables and 12 Nos. 33 kv single core cables by Very Low Frequency (VLF) testing method. 6 Nos. 33 kv cables at PTA-3 plant by Very Low Frequency (VLF) testing method. cables by Very Low Frequency (VLF) testing method. Condition Monitoring testing of 9 Nos. 33 kv cables and 2 Nos. 6.6 kv (3.1 KM) cables proof testing by Very Low Frequency (VLF) testing method. Condition Monitoring testing of 51 Nos. 1C x 630 sqmm, XLPE, Aluminum, 19 kv / 33 kv, 900 meters long HV cables. 1.0 M/s. British Gas Exploration and Production India Ltd., a. Sea Water a. 2 x 300kW, 3.3kV Sea Water Pump Pump b. 2 nos. 3.3 kv HT cable b. Page 7 of 7