| Other Electrical Engineering Interview Questions |
| |
| Question | Asked @ | Answers |
| |
| whether a separate starter is used for a motor while it is
connected to a vvvf panel? | | 2 |
| what are frequency changers ? Tell me about commertially
availble frequency changers ? | GE | 1 |
| what factors to needed while selecting a MCB and MCCB | | 2 |
| what is the different betweem earthing and neutral? | | 5 |
| why do we need transformers? | | 2 |
| working principle of UPS | | 3 |
| how do find power factor in practically and what it means? | | 1 |
| We have 250 KVAR cacitor bank & our average load is 200kva
but our power factor is average 0.66 how can we maintane
it? how can we balance our load? | | 3 |
| AT THE TIME OF INSTALLING THE POWER PLANT POWER IS TAKEN
FROM NEARBY GRID AND GIVING THE SUPPLY TO THE GENERATOR
WHICH ACTS AS MOTOR. WHAT IS THE NEED OF RUNNING THE
GENERATOR AS MOTOR? | | 1 |
| HOW GENERATING END VOLTAGE LEVEL (6.6 KV/ 10.5 KV/ 11 KV/
13.5 KV) DECIDED IN POWER PLANT. ON WHAT FACTORS THE
GENERATING END VOLTAGE DECIDED, & WHAT IS THE CALCULATION
USED FOR THIS. | Areva | 2 |
| On what factors the generating voltage depends ?
Generating voltage are (3.3kV, 6.6KV , 11KV, 13.8kV) Why so ? | Bhel | 1 |
| what is the suitable voltage of transmission line to
transmit 10000w power through 250 km.
(a)11kv
(b)33kv
(c)66kv
(d)132kv
]and please tell me whats the logic behind it | ONGC | 2 |
| 1.Whats the use of GNAC(Generator Neutral Accessory
Compartment)
2. why generator or any other system require Neutral
Grounding and not Phase grounding
3. what happens if any one of the phase is grounded.
4. if 15kv is grounded directly what will happen, why it
should not be grounded like that
5. use of of NGTR(Neutral Grounding Transformer and
Resistor) for grounding is helpfull and how | Powergear | 3 |
| if we convert ampers into kw,which one formula use by
us,pls tell me? | ABB | 4 |
| which motor is suitable for traction? why? | | 5 |
| why it is important to earth neutral of 3 phase transformer? | RRB | 2 |
| A 3 phase motor, 440 voltage, induction motor. If we take
out rotor from motor and if we give supply 440 volt to
stator then what happens????? | | 6 |
| Wat type of DC Generator is used for Arc Welding purposes? | | 1 |
| At which conditions a synchronous motor acts as a
synchronous condenser? | | 8 |
| Why capacitor bank does not require in DG Set? | | 1 |
| |
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