Answer / saish n kharkar

In case of SF6 CB SF6gas is used as arc quenching medium in.
when CB trip the male-female contact (we can say fix and
moving contact otherwise) gets opened at the same time SF6 gas
at particular pressure enters between the contacts and quench
the arc, also act as a coolant and insulating medium.

how is choose &depending upon the load why?

1 Answers   HCL,

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electrical resistance in human body?please dedails quick. mail.psrinivasan20@yahoo.com

2 Answers   CTS,

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how to find motor contactor rating and bimetalic relay rating? of 30kw motor which will operate on star-delta starter?

6 Answers   HCC, L&T,

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What do you mean by screen of power cables?

0 Answers  

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what happens when the phase and earth wires comes in contact? and why

2 Answers  

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how can maintaince the acb contactor moveing and fixing kit

0 Answers   Gulf Cement,

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I have iti elec, 1st aid, and 5 yrs experience in 7.5 mw power plant. Am i eligeble for 11kv license in telangana state..when, how to apply for that.?

0 Answers  

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why we r used DC megger insted of AC megger?

1 Answers   Adani,

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In the UVR(Under Voltage Relay) there is a knob for the hysteresis setting. what is this setting? its threshold is given from 5% to 50%. please help me....

2 Answers  

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An active element is one which a. Supplies energy b. Absorbs energy c. Supplies energy and convert energy from one form to another

0 Answers  

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What is the maximum No. of out going mccbs permitted from an LV distribution paqnel? What is the ampere relation between incomer and out going switch gears/mccbs?

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Can anyone please give me the parameters , formula needed to calculate the circuit breakers for building services.Thanks

0 Answers   Bhel,

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