what is the function of 1 phase preventer?

3 Answers   ABB, Electrical,

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I want definition for ABT Meter (Availability Based tariff) ?

0 Answers   Radha Regent Hotels,

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what is the basic difference between capacitor and condenser ?

17 Answers   ABB, Essar,

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RATING OF LIGHTENING ARRESTER FOR 11 KV LINE IS 9 KV BUT WE KNOW THAT LIGHTENING ARRESTER IS USED FOR OVER VOLTAGE PROTECTION SO WHY NOT THE RATING OF LIGHTENING ARRESTER BE MORE THAN 11KV ???????????????//

5 Answers   Hakel,

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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.

0 Answers  

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why ac supply neutral should earth not in dc (-)

2 Answers  

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WHAT IS LIGHTNING,HOW TO CALCULATE LIGHTNING DESIGN CALCULATION?

2 Answers   L&T,

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what is the use of back emf?

1 Answers  

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What is the effect on in Zone and out zone fault if Phase side CT is Vk/2<30 mA and Neutral side is CT is Vk/4<30 mA for Transformer REF protection

0 Answers   ABB,

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WHAT KIND OF LIGHTENING PROTECTION SCHEMS CAN BE ADOPTED FOR THE FLAT ROOF OF BIG DIMENSION.

0 Answers  

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what are the safety measures of induction motor?

3 Answers  

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what are the types of cables?

3 Answers  

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