Answer / imranqureshi451@gmail.com

BUCKHOLZ RELAY

Answer / k.prakashchandra

Such relay is possible in digital systems such as
telecommunication.I think it is 'frame relay'.

1)Why potential transformer primary site grounded? 2)can be loop between neutral & body for grounding? 3)What is the difference between ELCB &RCCB? 4)Why we use iron core in transformer insted of wooden core? 5)what is the principle of excitation? 6)Why we test the core balance test for transformer? 7)what is creepage?What is the creepage length for insulators at different voltages? 8)How much type of relays used for differential protection of generator,transformer & busbar protection?

5 Answers  

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What is the ideal position cooling fan inside the dc motor?

0 Answers   Kay Bouvet,

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Why R ph of Hv and Lv is shorted or joined together while taking vector group?

1 Answers   IOCL,

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1.stranded resistance values of motors? 2.how to calculate the resistance values of single phase and 3phase motors?

2 Answers   Bell, L&T,

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why use generator Earthing/Graunding.

4 Answers  

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brief notes on ammeters

0 Answers  

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What is the specification of service line (ie from electrical post to cut out) used by electricity boards used in india.i mean which material,its size etc.. please give the answer at lalkishan.p@gmail.com

0 Answers  

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Does the Impedance of the source affects the THD

1 Answers  

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It is observed that AVR of an Alternator is more likely to fail if the Generator and Mains Neutral are directly connected to each other. Why should this be so?

1 Answers  

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why we need to us lenz's law for synchornous motor

0 Answers   Tata Elxsi,

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How many safety of Disel Generator

5 Answers   Sail,

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an electric bulb is connected on a holder. one end of the wire is connected to the phase and the remaining one connected to earth instead of neutral. the bulb will glow or not? if yes then what is the need of neutral?

7 Answers  

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