Answer / ganeshyeole

1. phase over curtent27.
2. earth fault 27b.
3. unbalance46.
4. 48 locked rotter.
5. start per hour.
6. thermal overload49.
etc.

Answer / kannan

make > schnider electric
MICOM 220 Motor production relay

name 3 measuring instrument used in transformers

4 Answers  

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difference between power surge and switching transient

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What is meant by unilitrel device?plz tell about h-parametrs

1 Answers  

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what is ferranti effect?

9 Answers  

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Does frequency change with increasing voltage i.e 220v to 11kv? explain if not?

6 Answers  

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why leading pf indicates a negative sign???

1 Answers  

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what is the use of providing earthing for tanks? i know for lightning we use earthing ? Here one of my ONGC project there is no need of lightning protection and there is no power connection near by tank in that situation also ONGC asking earthing for tanks but we didn't understanding why they asking earthing? is anybody tell exact answer?

4 Answers  

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What is ONAN/ONAF1/ONAF2 for transformer cooling

5 Answers  

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mostly the questions were from machines... d.c. machines, transformer, synchronous and induction all theory paper........ few from power system... but the level of paper was easy.....

0 Answers   IFFCO,

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WHY EARTHING NOT NEEDED IN BATTERY IN SUBSTATION

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i ha done my 10th with 71% ,ITI with 81% 11th with 75% 12th 43% apprentiship with 71% in SAT i secure 1390 ,TOEFL 27 i was refused four times and in all me interview visa officar told that i am not Qualify for study in USA but i completed my 12th yes i got low persentage in my 12th but i seen to much student they already got visa with them 3 or 4 backlocs so why they are refused me ?

0 Answers  

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How can we find out earth leakage,(shock)in side the house?.. (with out ELCB)

3 Answers  

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