Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How can we select a capacitor Bank.? i need a standard formula for that.?

ABB, Ace Info, HAL, IKK, MahaGenco,

3 8738

what is the purpose of supervision relay coil

1 3301

why and how voltage sharing in transformer, during magnetic balance test ?

ME,

1793

why we setting 95 deg and 105 deg in wti and oti of distibution transformer ? give the reson for that ?

2571

why did lightening arrester rod probe sharp?

2 3206

Why in India distribution transformer are connected in Dyn11 when we know capacity of v-v connection can be increased by adding only a single transformer?

CSPL,

1 3471

define transformer

1 2816

Abb 11kv how it is closing automatically when the cb is racking in and rack out when it reaching test position

1 3331

what should be the BDV value Of 11/132kv power transformer

3 5412

what is meant by flywheel and its role in retardation test

1953

How can we calculate the Rating of DG Set for a 4 kw motor?

3 4419

what is a pf factor in generator.

CSEB,

3 5182

how to test and calculat the head and discharge in borewell compressor

1692

in case dc we mark as + ve & -ve..but in case a.c. we mark as ph&N...Y LIKE PLZ TELL ME

NPTC, TCS,

4 6401

Which power will flow first if we switch on a motor? Active or Reactive? How?

NPTC,

5 6810


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Un-Answered Questions { Electrical Engineering }

How to design the earth grid for lightning protection in an industry

3690


What are dcs and plc?

671


Can anyone explain me about the RLC based Impulse high voltage generator and how to and operation of Series resonant High voltage reactor...?

1413


Dear All we are having a problem in G120 BOP showing alarm A0503, F0052, F0060 we can not remove fault alarm ,Please any body help us. kowsar

1250


whats the differece between Exd and Exe

4274






100 MVA 3-phase alternator with earthed neutral has a reactance of 5 ohms per phase. what will be the fault MVA of generator.

1831


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

2527


WHAT IS THE DIFFERENE IN ACTION OF MCB,MCCB,RCCB

1948


why in an industry; machine having rated 200 h.p stopped after power factor is maintained above 0.97 lag by control panel in view-of energy saving

1583


What is the difference between Delta & Wye windings?

1596


If short circuit ratio is high is it bad or good for a machine then tell the reason...

1587


Damping resistor provided in open delta (tartiary) winding of a measuring PT at the incoming of a MV inverter drive panel is getting heated up. Can any body explain the reasons and suggest the remedy?

2527


How RTCC panel is working and give single line diagram for RTCC with transformer?

2635


how to calculate the capacitor to maintain power factor?

1654


how ceiling fan worked?

1478