Electrical Engineering Interview Questions
Questions Answers Views Company eMail

difference between elcb and rccb

ITC Infotech,

3 19974

In India,we use 230V,50HZ,where as many other countries use 110V,60HZ what r d advantages and disadvantages of each of them?

GVK,

7 20942

How do you select a cable size(cu&Al)for a particular load?

2 5595




The readings with a Multi meter are 15 Amps Phase Neutral 192,Phase Earth 194 and Neutral Earth 24 5 Amps Phase neutral 192, Phase Earth 153, neutral Earth 48

1 1661

The reason why the sending end and receiving end voltage sare almost equal when capacitive load is added.

4 6964

WHAT IS NORMAL VECTOR GROUP USED FOR DESIGNING OF TRANSFORMERS??

11 14534

WHAT IS NORMAL VECTOR GROUP USED FOR DESIGNING OF TRANSFORMERS??

695

can we connect transformer with star conected secondary to delta connected primary in series?

1 2251




why mccb is not tripping when phase & neutral terminal are interched ?

4 6903

What are the applications of different multistage amplifiers?Plz also write advantages of these amplifiers? Thaaaaaaaaanx

1628

plz send me the syllabus or any sample paper for engineer trainee recruitment if any,on ravinder911@yahoo.com

Bhel, Maruti Suzuki,

959

for testing busbar (33kv) hi-pot .whether we can apply DC r not.and what is the test volt for that .explain

WGPSN,

4 10810

What is STEP VOLTAGE ?

7 15059

How can we measure the frequency of a rotor running in full load condition? Explain the method of measuring.

Wipro,

2 3680

how can you calculate the value of external resistance inserted in a slipring industion motor? (eg. 110 kw / 990 rpm/50Hz/stator v-415/stator Amp-195/Rotor V-440/Rotor amps- 151.)

Bosch, NMDC,

5 37890


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Un-Answered Questions { Electrical Engineering }

What is load boxes ?

824


Can anyone please provide me details of MCCB/Contactor/SFU rating calculations for a motor feeder..for example 50 kw.. not from type-2 cordination chart. i want manual calculations..

1040


how to decide the capacity of accl

979


0.5,1,1.5,2.5,4.0.6.0,10,16 square mm electrical wires how much take maximum current in 50htz

925


I NEED RRB APTITUDE QUESTIONS AND MODEL PAPER,PLEASE SEND MY E-MAIL joo28_eee@yahoo.co.in

696






Dear sir, In our plant have Station Transformer having capacity,i want to know, why LV side 40 - 40MVA is given? & how we can get 6.3 KV supply from tertiary(i.e. Open delta connection), Vector Group YNyn0 - yn0 +d MVA Rating 80MVA / 40 - 40MVA + 26.7MVA Voltage rating 420 (Tap range +6,to -10)81.25% /11.5KV - 11.5KV +6.3KV

864


what is Anti-pumping?

615


Whether amorphous core transformer is available in India?.If available then up to what rating of voltage and KVA?.

494


Why transformer used in UPS??

167


How do apply electrical 'c'license......pls advice

468


What is the power requirement of tamil nadu for one month?

820


What is the ideal position cooling fan inside the dc motor?

804


how to select the double earth conductor if 21A full load?

712


what parameters are should nessary for control technic dc drive(in rolling mills)?

704


What is difference between YNyn0 and YNyn ??

614