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Electrical Engineering Interview Questions

how to work current transformer and potential transformer

3545

what is main difference between live tank and dead tank current transformer?

Atul,

23823

what are the different types and applications of compressors?

2006

compressor compresses air means exactly what happens?

3003

can we individually produce electriciyt

2098

what is the defination of 'Mass' & 'Weight'

6383

Dear Friends, I have a 500KVA transformer supplying whole factory having 3 phase and single phase mixed loads. Power room has ammeters connected via CTs for individual phase. Now I know that readings shown on meter for each phase say R,Y and B are line currents. But when I want to know the total on transformer do I need to add the currents of all three phases readings shown on meter or value for anyone phase will give me the correct power load on transformer for that point of time. 2. If ammeter shows unbalanced readings for R,Y, B phases say 150, 250 and 300 respectively so can I assume that 150A i.e average of 3 will be the 3phase load currents and remaining will be 1phase currents. Please clarify my doubt.

4960

what is the maximum load in MDB,SMDB and DB

8837

how to wiring 20 hp motor get completated?

2850

wich type of cable is selected for wiring of 20hp motor?

6978

give me list of material for wiring of 20hp motor?

3587

What are the various types of BUSBAR Schemes? explain each

NTPC,

3915

What are the various types of BUSBAR Schemes? explain each

32152

my motor rating is 800HP, 128Amps, 3.3kV. What is capaitor bank i can use for PF improvement to 0.990?

3885

What is the Power factor of DC Power system ?

33425

Un-Answered Questions { Electrical Engineering }

What is Phase to Phase clearance for 800V System Operating Voltage as per IEC61439

84

What is signal flow graph?

212

-What shall be short circuit current of LV switchgear for a 1000 kva, 11.415kv, 3 phase tranformer with 5% reactance.

1251

What kind of Neutral CT can be placed in 11/0.433KV transformer to be used and what are its specification?

825

sir, Is their any measuring unit of knoking? please explian?

971

what will happen if multimeter(selector switch at DC voltage) and terminal at current is connected to DC supply?

1087

R=*ΒΆ l/a

759

how is find out kwh step by step

878

What is core CT & it's function?

1271

i applied for c licence with my one year apperents trainee and i have attaced with A grade contractor company experiance that is for 14 monts experiance this document is sufeicant for c licence? pls tell why they rejected

1158

Pl.brief me any electrical major fault you have rectified.

1059

How to assume answer to electrical questions

531

why we permissive overreach in distance protection.where it is applicable to use in long r short lines

1857

Do closed loops systems require manual input?

207

how can i apilly for electrical c licencese.sir,i completed B.Tech in electrical & electronics engineering in 201onot working any company

982