L.A. (Lightening Arrester) is located at a place from where transmission line enters the transmitting substation. So L.A. (Lightening Arrester) is the first equipments which has to encounter with lightening, high voltage surges and switching surges. It has to absorb energy of lightening, high voltage surges, and switching surges. L.A. (Lightening Arrester) is made up of layers of semiconductors. If these layers can not tolerate energy released by lightening, high voltage surges, and switching surges the L.A. (Lightening Arrester) blasts.

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Batteries. What is the difference between Lead and Nickel batteries ?

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What is the rating of your substation and what are the different types of substations?

5 Answers   Bhel, NTPC, UPPCL,

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what is reason in mv breaker the control supply voltage is dc not ac?

1 Answers  

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how to decide choke rating for drive?

0 Answers   Reliance,

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what is the difference between analog and digital signal?

3 Answers  

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How to calculate the FUSE rating?

2 Answers  

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why plc need seprate earthing?

2 Answers   ABB, Whirlpool,

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oltc of a transformer, how it works? and what are the equipment consist of describe briefly?

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How to select a transformer group to connect a 0,433 KV generation with 33 KV grid in bi directional flow of current

0 Answers  

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why names such like dog ,rabbit, osprey,ant are used for conductors.

1 Answers  

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After fault clearing in Tr line, whether the Metering core of CT is comes to normal condition from saturation region & its works as a normal condition?

1 Answers  

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