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Electrical Engineering Interview Questions

Is voltage & potential transformer are the same? Are they used for same application ?

11755

If we say that an cable of size 3.5X 50 mm sq. can take current upto 140 amps,is it the current of single core of the cable or of all the cores jointly.

6973

what is direct dischage of power transformer

2856

any one please tell taht what type questions will be asked in BHEL interview, i am having interview on 24th Dec, please send this to mail pradeepsistam@yahoo.co.in

Bhel,

1123

How to conduct Magnetic Balance Test, Measurement of Excitation Current (both on HV- and LV-side) and vector group on a 1000 KVA distribution transformer. There is a neutral on HV side.

5816

how does this job compare with others you have aplied for?

853

How to calculate the size of the conductor for particular load

Eskom, HCL,

22851

What can a fresh(without experience) electrical engineer contribute to NTPC( Or any PSU company) growth?

NTPC,

4942

i want all question & answers of the written exam

Essar, L&T, MES, RRB,

1787

it is clear that volts equal to the current as per ohms law. is it appliable to the AC power or only for DC. if it is appliacable to AC in transformers when voltage increases the voltage decreases ????? why??????????????

Bhel,

14490

define main transformer?

9279

what are different types of alternator and discuss about the methods of cooling

62392

discuss thyrister convertor type of AVR.

4363

DISCUSS THE SHAFT MOUNTED D.C. GENERATOR ,BASED ON EXCITATION SYSTEM IN ELECTRICAL SYSTRM

3239

State the difference between Three winding transformers and Two winding transformers ? where its used?

35339

Un-Answered Questions { Electrical Engineering }

I am having dual speed motor of cromton greaves make of 3.7 KW -1400 rpm and 5 KW - 900 rpm. Please let me know groups and winding connction for rewinding purpose.

1148

Why PS class CT is always preferred for Differential protection?

677

why do we use spark detector inside the slip ring brush compartment 0ona slip ring induction motor?

1161

what is the use of current transformer in power transformer secondary side.?its connectyed in WTI

799

As we use capacitior bank in 3ph ckt for improvement of PF, why not we use capacitor in single phase domestric use, at our house their are many inductive equipments,like fan,mixer,tube choke,air conditioner they also draw PF... by using capacitor can they improve PF. if yes--what are advantage and how to connect a capactor in single ph,and which type of capacitor if no- what are disadvantages.

934

what is the working principle of energy saver control panel. please give the complete calculation & theory.

1401

1600kva capacity Transformers how the bucholz relay,Oil temperature,winding,surge relay relays setting are to be done

1081

1028

What is ideal IR values for ground and neutral.

868

What is meant by Low Resistance Cable and High Resistance Cable.

1027

What is dynamo function in DG sets and draw block diagram?

1147

how braking & making capacity of circuit breaker is calculated?

1178

What are the parameters of water ( Water quality )to be monitored in Centralised HVAC ( water cooler chillers )

1232

wat is the current produced in a 5000v megger? when the positive and negetive terminals are touched on our body get s shock?

1097

Please give me a erda placement paper

864