Answer / omar aziz

1. Maximum Demand
2. Downstream equipment starting characteristics
3. Total downstream kVA

Answer / aaman samal

for the selection of transformer the following points are
necessary

1. power demand
2.power factor
3.load factor and types of load

Answer / abhishek robinson

Thermal Loading of transformer
Fault Current

What are various accuracy classes of CT(Current Transformer)

1 Answers  

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what is busbar and its function/

2 Answers  

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if we convert kw into kva,which one formula use by us,pls tell me?

19 Answers   ABB, AEC, BGH,

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To determine the Healthiness of Insulation we will be performing Dielectric tests i.e Insulation Resistance test, Partial Discharge test,Switching Impulse, Lightning impulse, Tan Delta test ...etc why we required to perform this many test, why cant we do only one test. for Transformer, CT's

1 Answers  

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IF we want to replace I/C bay at our 220 kv substation which is of 140 mw load capacity bay to be replaced by 400 mw capacity bay.other than CT(1200/1) what are the other equipment i have to replace.

1 Answers   Jindal,

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According to IEC60034-14, When the vibration monitoring system required for motor Bearing. above which KW, it is required? and for what type of bearing the vibration probe is provided.

0 Answers  

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are induction motor have poles? yes / no , why?

3 Answers  

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what is rotary ups?

2 Answers  

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how to calculate the cable size for LT and HT power cables with detail explanation?

2 Answers   Asset Developments, Bhel,

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why connecting surge unit in contactor coil

0 Answers  

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In a 11kv/433v transformer,at the LT side ie 433 V side why do we need to put 3.5 core Cable upto Panel.The full load rated Amps is 666 at LV side.What value of current will flow through the Nuetral Conductor.Why can't we use 4Core Cable instea of that?

2 Answers  

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Is any generator is developed which is operated with out diesal or other expensive source?

0 Answers  

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