purpose of breaker contact multiplication relay?

5 Answers   ABB,

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what is meaning of AMF, WHY IS USING IN GENSET

1 Answers  

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If the circuit breaker will not close or it will trip, what will you do?

3 Answers  

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what happen if we supply ac to the field of a alternator?

5 Answers  

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How to decide no. of Step and Kvar for APFC Panel 40 kvar MD: 33.12 KVA Avg pf : 0.8540

0 Answers  

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Im designing APFCR Panel for 600 KVAR.I need to calculate the full current so that i can choose the capacity of isolator/Breaker.Kindly suggest with formula.

1 Answers  

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Any body can help me in getting LT panel test procedure.

0 Answers   TATA,

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Please let me if star point(Nutral) of Delta/ Strar transformer, in 4wire (TPN+E) is tobe gruonded seperatly,inaddition to LV Panel earthing????

1 Answers  

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why Batteries & Battery chargers are used in substation? what is the different between UPS & battery charger?

4 Answers   DLF,

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if a 3phase motor runnig in star delta starter with full load of its,and its rated 15 amps.now we conneted over load thermal relay at its main contactor,here what will be our amps sittings?

3 Answers  

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how we can find of current direction(supply comming/out going direction) when a transmission line passing through sides.

0 Answers   ONGC,

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Why only three phase power generation are load are used

2 Answers   BARC,

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