What is the difference between type1 and type2 relay protection co-ordination for motor feeders

0 Answers   DAE,

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why voltage swells and dips in transmission line?

2 Answers  

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A 6.6 KV motor breaker is try to Drack OUT by me while the motor running. What will Happened? a, will Trip. b,Drack Out lever will not access c, will get shock d, noting will happened

4 Answers  

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why voltages are multiple of 11 or 1.1???describe with derivation plzzz.thanks

2 Answers  

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in pf lagging means current decrease by increasing voltage is correct or not ? reason ?

3 Answers  

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Greeting to all members, How to calculate spill current when we have different ratio CT and Class for REF(Low Imp) I have 500/1A 5P20 @line side n 400/1A CL.X @ Neutral.

0 Answers   DEWA,

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1.type of oil in used in transformer.

9 Answers  

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Why only sinusoidal ac voltages are generated?why not triangular or sawtooth?

0 Answers  

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I find that underground strip-armoiured,4core,LT PVC cables in an earthed power distribution sytem are occasionly found in charred condition-with no trace of it except ash. Is this because of no proper earth connection/continuity (giving rising to high armour resistance)in the joint enroute or because of insufficient capability (again due to high armour resistance)of cable-armour to carry fault current or due to neglected /unprotected overloading of the cable or due to high armour currents caused by power thefts where only phase(s) are unauthorisely tapped & at the point of poer consumption earth terminal is established by burring underground a not so good earthing rod (or using an underground water pipe for the purpose)

1 Answers  

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what is the difference between watts and volts?

2 Answers  

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what is doubling factor in making current of a breaker?

0 Answers   BARC,

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If Ac supply is given to the DC motor then what will happen? clear explanation

2 Answers  

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