Electrical Engineering Interview Questions
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hi can you give any body fault level calculation, generator fault level calculation,transformer fault level calculation for system fault level with equation? i have 3.3kv generation voltage three gas gen sets, one is 1.9MW,2nd is 2.5MW,& 3rd is 3.8MW & i have 11 kv generation voltage one gas gen sets is 3.8MW, we are step up to 22kv by transformer

Hindalco, Piramal Healthcare,

3 7053

How delta connection in the primary of distribution transformer reduces harmonics?how delta connections reduces harmonics?Please answer me...Hope that question is correct.

1839

why dc exicitaion used in ac motor....?

2 4810

what should be the no load current for 3 phase ac motors ranging from 5 kw to 1000kw?

1485

what type questions asked in hp cl

HPCL,

1551

how we can come to know that motor winding resistance which showing by DMM is right or wrong???is there any chart or something that we will compare & check???

1568

Lux meter is the measuring device to measure the lux level of lighting fixture. in industrial sector two types of lighting fixture is being used as street lighting purpose 1. HPSV (Sodium) and 2. HPMV (Mercury). HPMV having white light which is an combination of red, blue and yellow colour, while HPSV haivng Yellow lighting. in HPSV red & blue colour will be absent. during measurement of the lux level of HPSV and HPMV fixture. 1. Lux meter can measure the actual lux level of both fixture? 2. or it will show false reading for HPSV fixture light as it has only yellow light present. please give me answer

1 5908

What is the minimum insulation value required for a cable between phase to phase and phase to earth of 380 Vac 50Hz circuit, having load arround 800 amps.

DEWA, TATA,

2 8370

what is the maximum current carrying capacity of a 95 sqmm cupper under ground cable laid partialy in land and partialy in ground?

4 6542

when we megger is not damaged when we are measuring very low resistance? high d.c. voltage is produced in megger so according to i=V/R. current will be high so what is the reason ?

1 3335

where induction generator is used ?

1 3734

SIR I AM GOING TO TAKE PART IN JINDAL ENTRANCE XAME OF 4TH OCT. PLEASE SEND ME SAMPLE QUESTIONS FOR THAT ON MY ID JITENDRA1603@GMAIL.COM

1 3295

what is meant by vector group of a transformer? How can it be derived?

1636

when the direction of a 3phase induction motor is reversed , is there any losses increases?

IOCL,

5 8301

a 3 phase slip ring induction motor is wound for 4 poles on stator and 6 poles on rotor; when 3 phase balanced voltage source at 50 hz is applied to motor it will run at a)1500rpm b)1000rpm c)750 rpm d)zero rpm

Essar, PSPCL, PSTCL,

13 23247


Post New Electrical Engineering Questions

Un-Answered Questions { Electrical Engineering }

what is the purpose of high speed earth switch in gas insulated substat

2646


what is the difference between electrical and electronic choke?

1599


what are the applications of PLC?

1671


how to calculation increase power factor for single phase

1938


Work done in a free expansion process is

808






hi can any body send me syllabus of rrb electrical section engg... and past pepar also of any board...

2298


What is the permissible limit of shaft voltage for 6.6 KV motors ? Why? Is there any standard is available?

2279


Can clean earth cable be considered as low current cable

1660


what are types of encoder

1547


what is the difference between changer, converter and transformer?

1026


i need previous entrence exam papers of nhpc.

2496


how to determine the cable size...pls explain me with the formula taking particular load....does the factors like impedance & short circuit rating influence the cable size, if so how....

1683


why it is not advisable to run low rating (19KVA) DG sets in parallel for long durations even though they are provided with droop ckts (QDC)

1596


oil cooled transformer

1892


What is the physical significance of phase.. i.e. what is exactly the meaning in layman's language.. 1 phase, 3 phase etc ???

1796