Answer / abishekmittal

Answer number 1 is o.k. but to add to that in D-TYPE MCBs,
instantaneous tripping occurs only for currents greater
than 10 x times the rated value of MCB.

Answer / jayaseelan

d-curve mcbs appl. to avoid high inrush current
ex.transformer,induction motors etc.

Answer / expert

I think the first ans is wrong, D curve only refers to
the shape of back side of MCB , by which it is mounted on
the mounting strip

Interchange 7 and 6 ,÷and× 36×7+4-7×3

1 Answers  

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what is the radio of kva & kvar or why calculated kva & kvar

3 Answers  

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what is the name for a meter/tester to measure the paint quality in electrical panel or wall?

1 Answers  

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What are types of HT Motors.

1 Answers  

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what is the differnce of STATIC ENERGY METER FROM ordinary energy meter?

1 Answers  

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what is the minning of propotional, integral, derivative ?

1 Answers  

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Three way plug point is there ,in that plug why we need earth pin is bigger than compare with phase and nutral pins?

7 Answers   IIT,

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how to find insulation resistance of a motor(415v) by theoretical formula??

2 Answers  

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How much width of the land shall have to be left below the EHT line of 440 kv as per the rule. i am told that a corridor of 35 M width is to be left free below 220 kv line. please confirm

1 Answers  

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In which type of circuit short circuit is dangerous in parallel or series and why?

6 Answers  

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what is the reason the main breaker is trip during the motor is running? (some time the breaker is not trip)

0 Answers  

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ROC converges if pole and zero lies inside a) origin b) z=1 c) pole d) zero ? Explanation please? if ROC does not converges then?

0 Answers   CCP,

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