Electrical Engineering Interview Questions
Questions Answers Views Company eMail

How many methods to take IR value of Current Transformer?

1 3153

why autotransformers are not safe for supplying low voltage from a high voltage source?

5 4762

Explain the experiment on ward leonard method of a speed control on a dc shunt motor with an suitable circuit diagram.

916

what current is taken from a double wound 500kva transformer

4 2675

what is the tolerance for the magnetic balance test conducted on the distribution transformer?

673

what is the differn bitween RCCB &MCB

3 4003

what is b checks and m checks in diesel generator maintenance?

572

how caculate the pump head to maintain perticuler pressure of water and what would be the motor size in hp for the same?

1 1671

what should be the megger test report for 11KV cable when meggered with 5KV megger , what is the resistance value we should get

7 8743

how we can calculate power factor without knowing current in 230v 100w load ?

10 8091

WHAT IS RETARDATION TEST IN DC MACHINES?

4 13743

What is the List of Equipments, Instruments, Components required in Transmission of electricity from 1 substation to other substation(The equipments required in substation too)? What are the differnt IS standrds used for above equipments in Industry?

2 6196

What is the pratically meaning of neagative going ac current.

1 1547

Why a transformer is rated in kVA and not in kW??

9 5952

my self i am raghu working as tech.. in my college the maximum demand is 211 kva presently we are using 12kva capacitors the target power factor is .95 so what capacity of capacitor banks should i install

2 2100


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Un-Answered Questions { Electrical Engineering }

If any HVDC line is going with positive & negative(the negative usually have return path of current with earthing electrode). Now the question is if this HVDC earthed electrode which is using as return path and earthed any nearby 400kv or 220kv AC substation equipments. which will be the impact of this on AC substation & its equipment, how severe may be this and what should be the minimum distance require between HVDC earthed electrode and AC substation equipments? It's really an high engineering level question...Dare to answer and increase your knowledge.

417


what is the necessary of using inductance property in transmission lines even through resistance is used to opposes the high current flows in that?????

351


full form of flry b

251


which capacity of RCCB used for five thousand watt electricity load?

277


what is the difference between active power and reactive power and apparant power in practical as well as theoritical

369


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

2032


Hi guys! Plz help me to answer the following questions. 1. What are the types of transmission line energy losses? 2. Why are the VLF are used some types of services? 3. What frequencies are used for reliable beyond the horizon terrestrial communication without repeaters? 4. To permit selection of 1 out 16 equi-probable, what is the number of bitis required? 5. What is the most common modulation used for telegraphy? 6. What is the multiplexing is used to increase the capacity of the optic fiber? Thanks

519


what is cascade speed control device?and how this device control the speed of motors?

485


How to check the cable fault / hv test of transformer cable.

264


what is method for testing CT

515


What is ignition module of a CAT Gas Genset G-3508 Engine, Alternator SR4B Series. HOw its checked for correct functioning.Is it repiarable or replacable?

338


WHAT IS FAULT CAPACITY OF HT MOTOR TERMINAL BLOCK? ANY BODY HAVE ANSWER PLZ....POST IT.

525


hi Is there any possibilities to find out the rotation of a shaft or something else by using electromagnectic waves or by IR rays.If s then can v change the dir., of rotation of the same by remotely?& how? plz dn't any1 say "NO r CAN'T"

486


how indusrial diesel generator work

412


Why is better to have a minimum ceiling voltage of 250% than 160%?

309