Assistant Manager (Protection And Instrumentation)
CurrentWorking at a 220/132 kV GIS substation as Protection Engineer. => Gained expertise on routine and emergent testing of 160 MVA, 220/132 kV & 40 MVA, 132/11.5 kV Auto & Power Transformers. The testing activities cover following tests of transformers:- TTR- Insulation Resistance Test- Winding Resistance Test- SFRA- Stability/Unstability Test- Oil Dielectric Test- C&DF- Testing of Mechanical Protection (Main & Tap Changer Buchholz, PRD, Temperature Guages) => Gained expertise on 132 kV underground cable DC Hipot testing=> Gained expertise on 220 & 132 kV GIS testing of following equipment1. SF6 CBs- Timing Test- Contact Resistance Test- SF6 Purity, Dew Point & Gas Leakage Test- Minimum Voltage Trip & Close Test- PD Relay Test- Antipumping Relay Test- SF6 Gas Lockout & Alarm Verification2. Isolators / Disconnector Switches- Contact Resistance Test- Electrical Interlocking Test of Isolators with Earth Switches3. CTs- Ratio Test- Polarity Test- Continuity Test- Winding Resistance Test- Saturation & Knee Point Voltage Test4. PTs / CCVTs- Ratio Test- C&DF Test (of CCVTs)- Insulation Resistance Test- Polarity Test5. Busbars- Contact Resistance Test- Stability & Unstability Test=> Also gained expertise on substation secondary equipment testing, configuration & design including1. Protection Relays- Distance, Line Differential, High & Low Impedance Transformer & Busbar Differential, REF, Over excitation, OCEF & Auxiliary Relays ( with all relavant features), of SEL, Alstom, GE & Schneider Electric.2. Energy Meters of various manufacturers like Iskra, Elster, AEM & Hexing.=> Gained Expertise on P&C Schematic Drawings, Secondary Circuit Troubleshooting & Post Fault Analysis=> Gained Expertise on following testing kits- Omicron (CPC 100, CIBANO 500, CT Analyzer, FRANEO 800, CMC 256+ & CMC 356)- Meggers (TTR, Delta 4000, Magnus, FREJA 300 & FREJA 546, Sverker 650)- Doble (F6150)- Vanguard (WRM 10, ATRT 101)