NBTC GROUP Electrical Technician Interview Questions and Answers

Interview preparation tips for other job seekers - Preventive Maintenance of All Kinds of H.V & LV Breakers, Motors, Voltage Up To 33 KV & 11
KV & 6.6.KV /2400 KW ,Transformer(15.75KV /230 KV ), Corrective Maintenance of HV/MV /LV
Switches gears,VCB,ACB,MOCB,SF6 Breakers, Breaker cubicle, earthling Switches ,Generator
earthling Switch ETC. Testing and calibration of all kinds of protections Relay of High Voltage and
low Voltage Motors, Transformers ,Generator like Under Voltage Relay , locked Rotor Relay
,Differential Relay , Negative Phase Sequence Relay , Over current/Thermal Over Current Relay ,
Bucholz Relay , DGPT Relay ETC. Transformer Oil BDV Test, Thermal Scanning , Earth fault and
Prediction Test of Equipment .Termination of high Voltage Motors , Cable Errection , Installation of
Motors, and Trial/Load Test. Transformer Oil Extracting ,Testing (BDV), Oil Filtration .
Equipments Of Oil & Gas Plant , Chlorine Plant, co2 plant
Maintenance of battery Banks , UPS for auxiliary Start UP and Control Voltage call safe supply.
EQUIPMENT UNDER RESPONSIBILITIES :
 MV MOTORS UPTO 2400 KW / 3 PHASE / 6600V / 60HZ
 LV MOTORS UPTO 125 KW / 3PHANSE / 380V / 60HZ
 RECTIFIER FOR CL2 PLANT CELL 3000 AMP / 380/60HZ / 120V DC
 TRANSFORMERS 15.75 KV / 230 KV – 150MVA
 TRANSFORMERS 15.75 KV / 6.6KV – 80 MVA
 TRANSFORMERS 6.6KV / 380V – 800KVA
 BATTERY BANKS 2000 AMP
 INVERTER / CHARGER 2000 AMP  SWITCH GEARS MV 6.6 KV / 3500 AMP SWITCH