Answer / barkha thakur

dirrential relay is a type of directional relay
it operates when there is a difference in the primary &
secondary current

Answer / biju mathew

Differential relay is a relay which operates when there is
a difference between two currents. For example incoming and
outgoing currents in a circuit.

Answer / sanjayjssate

Diffrential relay is used in transformer winding protection, it calculates the current of secondary side with transformer turn ration, if the current on other side is very slightly diffrent it does not trip but when iy crosses a fixed percent of defined protection it trips the circuit.

How Many Safety of Transformer

2 Answers  

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can some one clearly explain why -48 volt DC use in telecom site????

0 Answers  

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3ph motor running with unequal kw and different pf what are the reasons

0 Answers   UltraTech,

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diameter of cable and core is doubled then the value of capacitance is

0 Answers  

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what is work of CTPT in 33/11kv Substation

1 Answers   Fiat,

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Is only insulation the difference between High voltage and Medium voltage cable?

1 Answers  

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What is BMS System???Types...

4 Answers   Emerson,

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In motors how many types of cooling systems were used?

0 Answers   NTPC,

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Why the arms of delta in a delta-wye power transmission system are kept constant??

0 Answers  

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Can any one tell me the current VAT, Sales Tax, Octroi and Excise duty for the financial year 2009 -2010. Say control panels are manufactured in maharashtra, then what will be the taxes for within Maharashtra and outside Maharashtra?

1 Answers  

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explain Density

0 Answers   TCS,

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Resistance of low voltage side of transformer compared to high voltage side is A less B equal C more D depens on design

1 Answers  

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