Answer Posted / @shim

Use SF6 breaker as it is more reliable & maintenance free.
But be sure that the SF6 breaker is procured from a reputed
manufacturer elso once SF6 gas leakage problem occurs, it
will require to fill gas frequently.

hi this is hema, r there any books in particular for the preparation of the APPSC-A.E.E(electrical), if so please mail me the names ... thank u .

1930

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At the starting of dc motor and syn.motor and induction motor high current flowing through the winding. Due to this the windings burnt out. To avoid this different types of starters are used. But incase of transformer what Will be used (At starting no emf is induced in the primary winding)?

2039

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. How to calculate the Short Circuit Impedance in Transformer? How to calculate the Short Circuit Impedance in Transformer?

2164

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How to calibrate or test an LT Air Circuit breaker 440 volts, 35 KA, 800 Amps ?

2613

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any one please tell taht what type questions will be asked in BHEL interview, i am having interview on 24th Dec, please send this to mail pradeepsistam@yahoo.co.in

2004

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two way ckt diagram can be drawn by how many ways? give diagram

1777

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BSNL TTA EXAM QUESTION

2187

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how the CT and PT is connected in the circuit during testing of transformer explain with diagram

2032

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Whats the difference btwn a latch, port,data bus buffer? Do they all not hold data in d flip flops??

2413

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what is a types of short circuit and what is a types of distance protection tests

2262

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what is automatic voltage regulator?we can control the vlotage by using fuzzy controller in matlab?why we go for fuzzy?

1970

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Iin ESP why positive is grounded ? why not negative ?

2672

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what is the formula for efficiency of francis turbine and generator for hydropower? what is best way to select francis turbine and generator?

2509

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pls someone send me sample question papers along with the key.thanks in advance

2395

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How many kw will suply from one db

1576

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