Answer Posted / sanjeev shukla

actually we cant say about the no. of turns of the primary winding of the ct but the rating of the c.t is 800/400/200/1 means what should be the primary current secondary current must be 1 amps

A power transformer 4MVA/11KV/0.415Kv has been out of use in 12years. what maintenance actions/test need to be carried out before energizing.

1264

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What is the transfer function?

1041

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What is the difference between the transmission line and distribution line?

1114

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explain the Trip supervision circuit

2093

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In siemens S7-300 PLC, what is function and function block ? What is the difference between them ? When to use function and when to use function block ?

3065

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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

2247

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why the projects getting loss?

1883

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if main CT is of ratio 50/5, and meter CT is -/5 what will be overall multiplying factor of meter.PT is 11000/110 .

1612

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What is a slack bus?

1084

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if a 3phase 100kva distribution transformer , 400 v,50 hz, 4-wire system is loaded at 160 k.w mostly 1-phase Lighting & Airconditioning split a.c load what will be the net effect on the power system in terms of voltage, powerfactor, current , efficiency of xformer

1843

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Circuit diagram of tube light without starter using electrical choke

4059

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what are the stresses in circuit breakers ?

1968

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How impulse levels are calculated that for 11kV impulse is 75kvp, for 24kV impulse is 125kvp ?

1949

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what is a reactive power? what is the relation with power factor?

2113

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1.4 What is meant by CT knee point voltage and how would you determine it

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