Answer Posted / visaw

earth fault relay operated between two phases for unbalcing
voltages

what is meant by directional earth fault and non directional earth fault? describe both.

1889

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. How to calculate the Short Circuit Impedance in Transformer? How to calculate the Short Circuit Impedance in Transformer?

2136

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block diagram of 2 ups system connected in hot stand by mode?

8043

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What is CCM in Electrical ? where can we use this material?

1439

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2 v/500amp/hr to 1.80vpc at 20 degree celsious 2v/5ooamp/hr to 1.75 vpc at 77degree farren .this is the capacity of a battery .what is the meaning of this . can i get a detailed explenation

2285

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Advantages of using generator circuit breaker (GCB) scheme in a power station ?

5253

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why ups rating in kva? and why ups are in parellel?.why isolation transformer is used in ups?

1916

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What are the advantages and disadvantages of negative feed back?

1126

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what is the main difference between power devices and signal devices

2169

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How much dc volt applied in cathodic protection system?

2314

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by what factor the starting current is used when comparing star and delta connection for motor starting?

2058

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Why a tesa lamp is glow between two phase?

1982

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Why strting torqe high in inducation motor?

2129

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which book to refer in electrical engineering for iocl exam & which book for general english.

2220

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why we change the direction of winding in rotor ?how we make the north and south pole?

2033

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