Answer / sa

It is a protection to provide upper safe limit of current
i.e. genrally 110%.

Answer / erharisheee51

means protection from over load or short circuit protection.
current exceeds when short circuit and load increases. to
protect from that we have to ensure the relayy like over
load relay.

Answer / manjifera

the protection when current exceeds.

What is the function of lead sheath?

2 Answers  

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why HT line voltage is multiple of 11.eg11kva,33kva,132kva

2 Answers   HP,

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difference between crane drive and line drive.

0 Answers  

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Which oil can be used in transformer?

1 Answers  

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WORKING PRINCIPLE OF VACCUM CKT BREAKER ?

2 Answers  

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what is the use of spherical metal balls attached on to the earth wire of transmission over head lines?

2 Answers  

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what type of earthing is done on hilly rocks.

4 Answers  

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for 750 kw LT load what will be the ht kva

0 Answers   Sterling Tools,

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what is voltage,current,restance,. what is single phase&three phase motar. what is basic electrical 'farmoulas. what is defirens quetions of electrical maintenance.

2 Answers  

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What is the different between buchholz relay and pressure relief device?

2 Answers  

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How do you change an AC motor to DC? why there is only 50 Hz frequency in india & not other?

4 Answers   BSF, TATA,

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1) why a dg set shows variation of power factor and load when synchronised with other dgs? 2)Why the load sharing is not become equal in all dgs?. 3)When a dg set will not run on auto start?

0 Answers  

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