- POWER TRANSFORMER
- AUXILIARY TRANSFORMER
- CURRENT TRANSFORMER
- POTENTIAL TRANSFORMER
- CIRCUIT BREAKER
- ISOLATOR
- LIGHTING ARRESTER
- POWER CABLE
- BUS BAR
- AUXILIARY RELAYS
- METERS
- EARTH PITS
- TURBINE GENERATOR
POWER TRANSFORMER
* Testing will be done using conventional test kits & special kits will be used where ever required
AUXILIARY TRANSFORMER
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Magnetic Balance & Magnetizing Current (Transformer Test Board Make : )
Vector Group
Oil Filtration untill BDV is acheived (withstand 60 KV/min as per IS)
Change Slica Gel When color changes to white from blue
* Testing will be done using conventional test kits & special kits will be used where ever required
CURRENT TRANSFORMER
ANNUAL CHECKS & PREVENTIVE MAINTENANCE Insulation Resistance Test (Digital IR Tester, Make: Megger, Model: BM5200) Winding Resistance Measurement, Polarity Check Current Ratio Check Knee Point Voltage Check for Special Class cores (PS Class) Capacitance & Tan Delta Measurement (Above 33 KV) (Tan Delta, Make: Megger, Model: DELTA 4110)
* Testing will be done using conventional test kits & special kits will be used where ever required
POTENTIAL TRANSFORMER
ANNUAL CHECKS & PREVENTIVE MAINTENANCE Insulation Resistance Test (Digital IR Tester, Make: Megger, Model: BM5200) Winding Resistance Measurement Current Ratio Check Capacitance & Tan Delta Measurement (Above 33 KV) (Tan Delta, Make:Megger, Model: DELTA 4110)
* Testing will be done using conventional test kits & special kits will be used where ever required
CIRCUIT BREAKER
ANNUAL CHECKS & PREVENTIVE MAINTENANCE Insulation Resistance Test (Digital IR Tester, Make: Megger, Model: BM5200) Coil Resistance of Closing, Tripping & Motor Coil Contact Resistance Check (CRM, Make: SCOPE, Model: CRM100B)) Timing Check(Open, Close & Close-Open) (Time Interval Meter, Make:SCOPE,Model: SCOTM3K) Dynamic Contact Resistance Measurement Test (Above 220 KV) (Make:SCOPE, Model: HISAC Ultima)
* Testing will be done using conventional test kits & special kits will be used where ever required
ISOLATOR
ANNUAL CHECKS & PREVENTIVE MAINTENANCE Insulation Resistance Test (Digital IR Tester, Make: Megger, Model: BM5200) Contact Resistance check (CRM, Make:SCOPE, Model: CRM100B)
* Testing will be done using conventional test kits & special kits will be used where ever required
LIGHTING ARRESTER
ANNUAL CHECKS & PREVENTIVE MAINTENANCE Insulation Resistance Test (Digital IR Tester, Make: Megger, Model: BM5200) Counter Operation (By Voltage Method; Upto 3kV)
* Testing will be done using conventional test kits & special kits will be used where ever required
POWER CABLE
ANNUAL CHECKS & PREVENTIVE MAINTENANCE Insulation Resistance Test (Before & After Hi-Pot Test) (Digital IR Tester, Make: Megger, Model: BM5200) Hi-Pot Test (HV Test Kit, 30/40KV AC/DC & 70/80 KV AC/DC, Make: AJ) Capacitance & Tan Delta Measurement Test (Tan Delta, Make: Megger, Model: DELTA 4110))
* Testing will be done using conventional test kits & special kits will be used where ever required
BUS BAR
ANNUAL CHECKS & PREVENTIVE MAINTENANCE Insulation Resistance Test (Digital IR Tester, Make: Megger, Model: BM5200) Contact Resistance Measurement (CRM, Make: SCOPE, Model: CRM100B)
* Testing will be done using conventional test kits & special kits will be used where ever required
AUXILIARY RELAYS
ANNUAL CHECKS & PREVENTIVE MAINTENANCE Check Pick-Up Voltage (AC/DC Power Source) Check Drop-Off Voltage (Only for Auto Reset Relays) Contact Changeover Check Coil Resistance Check
* Testing will be done using conventional test kits & special kits will be used where ever required
METERS (OFFLINE & ONLINE)
ANNUAL CHECKS & PREVENTIVE MAINTENANCE Measurement of Voltage, Current, Frequency & Power Factor) Check Accuracy of Meter (Active / Reactive / Apparent) Error Calculation
* Testing will be done using conventional test kits & special kits will be used where ever required
EARTH PIT / EARTH MAT
ANNUAL CHECKS & PREVENTIVE MAINTENANCE Individual & Grid Resistance Value Measurement ( Before & After Reconditioning) (Digital Earth Tester, Make: Megger / Waco) Reconditioning of Earth Pit if required Earth Mat Integraty Test (Make:OMICRON, Model: CPC 100)
* Testing will be done using conventional test kits & special kits will be used where ever required
TURBINE GENERATOR
ANNUAL CHECKS & PREVENTIVE MAINTENANCE Winding Resistance Check Capacitance & Tan Delta Measurement (Above 33KV) (Tan Delta, Make:Megger,, Model: DELTA 4110)
* Testing will be done using conventional test kits & special kits will be used where ever required