A single line diagram(SLD) and a purchase order of a 11/66kV switchyard of a power plant was given. In the SLD, only one lightning arrestor(LA) was shown, but the purchase order had need of 3 LAs. Is this correct, if yes, why?

2 Answers  

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What is the allowalable frequency variation in India and in US? Why there is the difference?

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How to find the maximum load(in KW)in a big industry, having motors,lights,lifts etc..?

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why single phase induction motors are not self staring ? how can we start the 1-phase Induction motor ?

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how to put cable sizing and cable glands size for respective cable & Cable Lug size in a DB sectors???

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what is the difference b/w conductor and semicoductor

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What is the difference between Earthing & grounding

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Wat is power factor exact meaning in terms of technical terms plz explain ?

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Explain Need of a starter in a dc motor.? Also explain any two starting and speed control method of dc motor?

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Why transformer is rated in kva?

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what should be the megger test report for 11KV cable when meggered with 5KV megger , what is the resistance value we should get

7 Answers  

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