How the Oil Surge Relay works? How it protect the OLTC?

3 Answers   JSL,

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On what basis the the size of Lightning arrester for buildings are selected ?

0 Answers   KGD,

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WHAT IS DIFFERENCE BETWEEN idmt and instentanous relay? is idmt is used as back up protection or else?or when instantenous relay saturates IDMT will operate???

1 Answers   BK, REL,

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What is transformer saturation?

1 Answers  

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What is the difference between earth fault protection of motor feeder with CBCT and Without CBCT ?

0 Answers   Enmas, Michelin, Reliance,

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Why earthing is required, and what effect in earthing result is more than 5 ohm and less than 5 or equal to 0 ohm

2 Answers  

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what is the rating of Insulation tester for measure 15 KW, 3 phase 415V 50 HZ induction motor?

2 Answers   ABB,

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Dear sir, please tell me how many day use CTPT transformer

1 Answers   Daya Engineering Works,

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how to calculate the earthing conductor & no. of earth pits required

3 Answers  

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What difference between voltage and current

5 Answers  

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Explain the working of variable frequency transformer?

0 Answers  

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what is the distance maintained between the power and data cables with respect to the KVA .... plss give me the formula

1 Answers  

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