For 415v,3phase,22kw rating of motor how to calculate MCCB rating

2 Answers   Zigma Technologies,

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why substation are rated like 11KV or 33KV?

3 Answers   TNEB Tamil Nadu Electricity Board,

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What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection

0 Answers   ABB,

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3 phase induction motor rotor field rotate at synchronous speed w.r.t ?

3 Answers  

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what is the basic difference between synchronous motor,synchronous generator and induction motor

7 Answers   NHPC, NTPC, Sail,

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What is the meaning of Fault level rating?

1 Answers   Balrampur Chini Mill,

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what will happen when the dc supply is given to the capacitor?

0 Answers  

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what is meant by neutral compensation factor and where it is used

0 Answers  

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in HT service 3ph 4 wire service Y-phase voltage shows zero . whether it is meter fault? or what be the reason ? if y-ph voltage zero ,can current is recorded? reasons for failure?

0 Answers   apspdcl,

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directional relay is typically used to respond in fault condition who it can be used just as reverse power protection which purely senes direction reversal to operate a circuit breaker?

1 Answers  

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Why the Transformer connection is changing in different transformer?(Like Star & Delta,Delta & Delta,Star & Star,Delta Star) From that connection where it is used?

2 Answers  

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What is the basic difference among Circuit breaker,Contractor and Isolator? Are they different names of same device/equipment?

2 Answers  

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