Answer / mashani

presure switch is used to shutdown the substasion if the
presure inside the substasion is abnormal....this pressure
switch will tripped all Circuit Breaker inside the
substastion

Answer / k.prakashchandra

Pressure switches are used in pneumatic circuit breakers to
maintain air pressure

On a 10 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 65 AH). What Shall be the current rating of DC MCB ?

6 Answers   RR, TNEB Tamil Nadu Electricity Board,

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how many ht 11 kv cable size for 11kv 2000 kva 11kv*433v transformer ?

3 Answers   Megatron Solutions, TCS,

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0 Answers  

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If the load is 10Kw and power factor has to improve from 0.5 to 0.8,how can we select the capacitor rating accordingly.Illustrate by showing formula?

9 Answers  

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1 Answers  

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How to calculate cable rating for 3 phase supply?

0 Answers  

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what is tha online tapping and offline tappchange? which side connected primary or secondary and explain ?

4 Answers   Essar,

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How the unidirectional torque produced in dc motor

2 Answers   CGL, Sail,

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A CT is marked as 10VA 0.2FS in its name plate. What is it? Where it is used?

1 Answers  

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what is the formula to find Amp. for an 3 phase moter both if H.P. or if kW is known?

5 Answers   Uttam,

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what is hystersis loss?

3 Answers  

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