how the fan is switched off immediately switching off the switch?

2 Answers  

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why ct's&pt'S out put called as burden,why compelsary short ckt the secondary of ct's while removing the burden?

0 Answers  

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Draw a block diagramof Three UPS systems connected in Parallel mode?

0 Answers   HSL,

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.if the vector group of two transformers is not same n tey r connected in parallel operation then what will happen?

2 Answers   ABB,

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fog produced due to?

2 Answers   MAHINDRA,

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what is means of ALF,kPV(min),lexc(max)at Vk,Rct@75 degree centrigate ohm in current transformer name plate?

2 Answers  

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Can we use shunt trip coil instead of trip coil with protection relay for protection?

0 Answers  

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what is the purpose of interpose t/f in control and relay ckts?

2 Answers  

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How to calculate the current capacity of the 3C / 1C Al/Cu power cable???

2 Answers  

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what is resticted earth fault protection ? how did it protect & work in power transformer

3 Answers  

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Which neutral is use when DG(3 Phase)is running?

3 Answers  

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1.What is wind span ,wight span and normal span, and what is the difference for 132kv transmission .

1 Answers   PKR,

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