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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what is the function of NAT & NAC contacts in breaker control switch (TNC)??

2 Answers  

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5 Answers   Eskom,

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13 Answers   Adani,

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Send the control circuit digram of a star delta stater?

1 Answers   L&T,

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how can check the resistance of battery contact?

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what is the string efficiency

1 Answers  

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