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Electrical Engineering Interview Questions
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how we can calculate cable size of 230v,1 hp single phase motor ? panel to motor distance is 25 meter

 4 16523

In induction machine when the load increase the current will increase .why? what is the relation ship between the sleep and current drown by stater?

 1 2091

can we run a motor rated 50Hz,415vac,1440RPM At higher speed then rated on name plate with the help of VFD /drive on long term basis.wheater it will effect the motor life

 3 5977

In APFC panel, Why on dealy timer is used in Capacitor controlling circuit?

 1 8478

How wire size can define in electrical wiring? What is the ratio?

Descon,

1793

i am trying to PSUs/govermeant jobs since last 2 years but still i m not success, plz help me.

 1449

WHWT IS USE OF VACCUM CIRCUIT BREAKER

 4 6772

IF 5000amp current on LT 440V. then how much it will draw amp on HT 11KV side

 10 24973

why reactive power produce in generator? why inductive load absorbe reactive power?

 2 5231

what happen if generator exitation lost?

 7 11146

what is the basic paramter to set a electric drive

Alpha,

1 3338

what is the physical connection of a analog i/p to a analog i/p module (ab plc)and through a analog o/p module(ab plc) to a analog o/p . and how all the process control by scada

 1431

if a number of plc s are there then how many modbus to be used

 1543

1) name the communication cable and how it is communicate in between plc to modbus , plc with hmi? 2)name of the communication cables?

 1 3526

what is the per unit cost of generation of electricity at thermal,hydro,desael,solar,gas power plant

 1 3647

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Un-Answered Questions { Electrical Engineering }

To make a basic instrumentation amplifier, it takes A One op-amp with a certain feedback arrangement B Two op-amp and seven resistors C Three op-amps and seven capacitors D Three op-amps and seven resistors

1527

how to calculate earth fault relay current and CBCT ratio

7771

Why air circuit breaker off due to power failure?

708

what is mean by D.O. in distribution line poles?

1048

what is earth resistance? how to measured? and give values at power station and mcc area?

1506




how can I calculate charging current of cable/overhead conductor? what is roll of voltage in it ?

3224

can u give me a brief idea about power line carrier communication ??

1487

Do u know any one? how to find out in motor rated amps? formula?

1529

I want to merge a cable..in between two metering Cubicals which contains CT's and PT's and Energy meter..before taking merger..what are the common things required?

1122

Why auxiliary transformers are not connected in parallel in primary stations?

954

What is relation between mu(nought) and epsilon(nought)?

873

At what speed 1 HP motor can run an electric car of weighing 400 kg?

1130

Is it possible to make a 5P10/ CT Ratio 50/1A Burden 5VA

1220

please give me all the Alarm .Trip ,Safety Relays & Conditions of UPS Systems mail me on ashokbabunhce@gmail.com

1366

how freewheeling diode improves the powerfactor

4850

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