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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can we use HPSV LAMP in HPMV LAMP fixture ?and viseversa.

5 Answers   OPS,

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What is mean by making & breaking capacity of circuit breakers?

3 Answers  

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What is the difference between earthing,ground&nutral?

2 Answers   Bhel,

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why use phase displacement in transformer.and effect of phase displacement on transformer

0 Answers   IOCL, ONGC,

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A LT ckt i mean 440 volt flow of current100A.at this time HT current what will ON 11 KV &33 KV.plz givemy answer with example

2 Answers   Neptune,

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What should be the percentage increase in length of the dead end clamp for bus bar conductor (Hawthorn) after hydraulic pressing and what should be the applied pressure?

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What fomula is used to calculate: 1. rated frequency withstand voltage, and 2. rated lightning impulse withstand voltage.

0 Answers   PNG Power,

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what parameters should we check to reduce the power bill

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why dc measurements are noted in mc whereas it is mi in ac measurements?

1 Answers  

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What is frantic effect?

0 Answers  

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what is meant by magnetic flow meter ? explain its working principle ?

1 Answers  

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