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Electrical Engineering Interview Questions
Questions Answers Views Company eMail

Comparative difference between 33Kv & 66KV for transmitting the load of 7 MW at a distance of 34 Km.

NHPC,

6 12565

APPLICATIONS OF SHUNT GENERATOR

Wipro,

1 10517

whats the advandage of PMG in alternator?

2 17403

what is the d/f b/w iverter & converter.

Indeco,

5 5418

how bucchos relay works in a transformer

Indeco,

8 9826

how generater works

4 4428

what are the main parts of UPS what is the function of that?

Apollo, HCL, Liebert, Royal Furnishers, Tech Mahindra,

23 107136

Which transformer is suitable for 220/11 kV, 60 MVA, distribution , Y-Y or D-Y or Y-D, give comparison for the same.

3 8962

why do power factor in the three phase induction motor increases with the load ???.

Jindal,

3 11535

How to calculated capacitor rating both HT

Reliance,

10 21523

How to select the earthing transformer,for DELTA TO DELTA TRANSFORMER OR ALTERNATOR SIDE.Pls post your answers and calculation.

1686

Why Transformer Neutral having one earth pit ( more earth electrode resistance) whereas body have many earth pit ( less earth electrode resistance)?

OPS,

3681

Dear All please ive me ur ideas... What is the major diff between cu conductors and Al conductors ?

MX Technology,

3 4316

hoe to select the cable size in sq mm for certain load?

TCS,

5 8133

how to select DG set for certain load?

ACC,

7 20886


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Un-Answered Questions { Electrical Engineering }

What are the necessary solutions needed to be carried out on a malfunctioned earthing mechanism of a VACUUM CIRCUIT BREAKER.(TAMCO)

1383


When calculating the speed of a rotor required for a particular frequency of synchronous generator we use the equation 60f/p Is this p is the number of pole pairs of rotor & do we consider the number of pole pairs in the stator is 1?

1138


what is servo motor & how does it work.

1336


What is the tests required for a 132 kV, 400 kV , 765 kV for a Circuit Breaker and Power Transformer before commissioning ?

1011


what are all types of cross section in AC cables?

1684






Why are the laminations insulated from each other?

486


What is the diff. between single compression and double compression gland

1298


How impulse levels are calculated that for 11kV impulse is 75kvp, for 24kV impulse is 125kvp ?

1286


1. What is maximum permissible distance between smoke detectors ? 2. How do we decide number of smoke detectors required in a large office, warehouse, hall etc ? 3. What should be maximum height of smoke detectors ? 4. Where do we use heat detector, optical smoke detector, temperature sensitive detector ?

2128


1.25 kg of hydrogen are burnt with stiochiometric air, the mass of air in kg required is

945


what is the eight bit unit?

1783


How much load can be taken for chiller from 1500 kva transformer

703


how many parameters can integrate with fire alarm basically ?

1326


how much flux density of CRNO core

2105


How will polarity test of Dy5 Transformer ?

1607