Answer / raja

BIS 3043 , IEEE 80 is for AC substation earthing. Apart from
this for lightning protection IS 2309 , IEC 61024 , BS 6651,
etc.

Answer / vrishali ajagaonkar

For earthing calculation IS-3043 & IEEE-80 are using. i dont
have idea about IEC.

testing of Vector Group – YNaoD II

0 Answers  

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how to select a capacitor, i mean we use 3.5 mico ferad cap for a celling fan,but how to select a cap for 1h.p motor,etc.........

1 Answers  

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why generator is design for lagging P.F(power factor)?

3 Answers   BSES,

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If a fan get trip and run in reverse direction due to system flow. Now in this condition during starting how can a VFD bring this negative speed to zero and later run in forward direction?

2 Answers   Aditya Birla, Siemens,

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how to design domestic earthing pit and earthing wiring?

1 Answers  

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Does the direction of rotation of d.c. Shunt motor would get reversed if the armature current and field current both are reversed?

0 Answers  

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The CHARGED BATTERY GET DISCHARGED WHEN IT IS NOT IN USE FOR LONG TIME.GIVE REASON.

1 Answers  

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EXPLAIN THE TRANSFORMER MAINTENANCE?

0 Answers   Enercon, ERT, GEL,

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operation of protection relay watchdog contact?

0 Answers   L&T,

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1 kva how much amps? How to calculate ?

2 Answers   L&T,

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plzzzzzzzzz plzz send me the papers of JSPL WRITTEN TEST..SO that i can prepare for the test in electrical engg..

0 Answers  

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PLZ EXPLAIN THE INTERLOCKING AND CONTROLLING OF CONTACTORS????HOW CAN I DO THAT?

2 Answers   Siemens, UPL,

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