Answer / hanupowergrid

Liquid resitance starter (LRS) ,IN which external
resistance is liquied media which is use for the starting
method of slip ring motor.

for starting of slip ring motor external resistance are
required so that we use liquid (addition of some caustic
soda)as resistance so that it is called as LRS.

what is the function of a Master trip relay? why is it used ?

5 Answers   ABB, Nissi Engineering Solution,

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why we do not switched on capicitor panel with DG Supply

3 Answers   DLF,

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the power loss in an overloaded line is mainly due to? a. resistance b. capacitance d. inductance d. none

4 Answers  

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Why 268hp induction motor taking different current in three different phases? (In which two phase having same current and one having higher value compare to other 2 phases.)

1 Answers  

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We have studied about many techniques for finding the stability of system, ROOT LOCUS, ROUTH, BODE PLOT, POLER PLOT etc. In these which is used where. what are the difference among them... PLZ tell me.......

0 Answers   MSEB,

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What is inrush current? how can calculateit? what is the affect of it?

0 Answers  

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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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how to wiring it with contactor and timer together

0 Answers  

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WHY POLARITY TEST OF CT IS VERY IMPORTANT IN SWITCHGEAR

3 Answers   Birla, Reliance,

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What is R/X ratio? I have heard that this ratio is higher in a radial distribution system.Why is it so? I would appreciate a word. Thank you

1 Answers   Power Grid, Vignan University,

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in india why 50 hz and 220 volt taken as standard rating for equipments whereas in US 100hz and 110v is consided as standard rating.is this method save power.

5 Answers   Wipro,

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what is MAR

1 Answers   NCC,

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