Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How to decide DO set rating of Transformer?

23

WHat is the requirement of installing FAST ACTING EARTH SWITCH in GIS and how is that integrated with protection system. How and when does it operate?

23


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Un-Answered Questions { Electrical Engineering }

how to calculate current and voltage in a same circuit?

850


Why reactors use before incoming of ac vvfd drive?

526


how the find ct mf and mf roll in metering

815


why are installed water leakage detection system data centers & server rooms

1115


while doing high voltage test on 11kv/433 distribution transformer why we only give 28 kv on hv side and 3kv on lv side for power transformers what is the value what factors it depends

1376






why normally Generator rating are between 11Kv to 22Kv?

2378


Why 30kw 40 hp 4 pole 3ph induction motor over heated?any steps on reduction in heat?

463


write a program that prints prime numbers from 1-20 in digonal form

789


Hi Friend I am used multimeter to measure the voltage between R Phase(SS1) to R Phase(SS2). In SS1 is connected with UPS loads. But I am getting voltage between these 2 R Phases. Please give some idea friend

759


explain with diagram how to protect transformers and substations from over current with help of CT's?

858


3 shows a 415 V, 3-phase generator supplying a 3-phase 415/110 V transformer. Draw the individual and combined impedance diagrams to a base of 10 kVA. Determine the system fault kVA and the fault currents at the 415 V and 110 V busbars for short circuit faults on the transformer input or output terminals. Work in p.u. values of impedances.

1415


In EDO ACBs what is a purpose of closing coil and motor, what is the operation of these devices are they inetconnected. means if we give supply to motor and by BCS we charge Closing coil,what exact is operation is and how it charge a spring of ACB. Sir if anybody has an wiring diagram please send me the link to operate and EDO breaker.

844


What is the maximum breakdown voltage of 11KVA and 66 KVA power line and how it is calculated?

1066


what is circuit recombiner and how it is different from circuit breaker

701


How can we find out LT UG cable fault (size,from-4*25mm sqr to 4*300mm sqr)? How mani types UG cable faults?

1752