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.

diesel generator not getting start so whats problems will happen to DG and how we can start DG

1 Answers   Lodha,

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what is synchronizing panel & its working.

3 Answers  

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how to calculate the Neutral transformer impedance?

0 Answers   Schneider,

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What is the deffirant between EARTH, GROUND AND NUTRAL

4 Answers   TCS,

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why power of fm is weaker than am?

1 Answers  

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what is reluctance?

11 Answers   TCS,

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if in 3-phase system voltage=440V,frequency=60Hz, current=400A. then if it is single phase then current=? and if it is single phasing then current=?

0 Answers  

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Why the wave trap is put in Y phse only in switchyard?why not in other phases?

1 Answers   IAG Automation, REL,

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What is transformer break down voltage.And what is flash oil flash point.

1 Answers   HP,

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how to calculate sizing of NGTR (Transformer rating,Loading resistor value and Current rating of resistor) and what is the X/R ratio. Details : 11kV,Capacitance 1.73532 micro farads,40kA for 1sec.

0 Answers  

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is the surge effect the solar panel, if yes so tell me how can surge effect the panel? explain brifly

1 Answers  

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In three phase energymeter the spindle rotating backward why?

1 Answers  

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