Answer / sheikh

firstly you should know that what is rated current of
50kw.motor and relay can be adjusted twice of rated current.

in case of OC+EF relay, how the burden is divided/calculated/shared by the CTs in case of normal (healthy condition) and during fault conditions.? three coils of OC & ef coil is conected in residual connection across the three CTS.

1 Answers  

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how the transformer stables out zone faults? Because we use non directional O/C relays .Is there any special considerations are taking into account to overtake this?

1 Answers  

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'documenˁ

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what is thresold of perception

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What is the function of isolater

4 Answers   Getco, Gland Pharma,

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In what cases (circumstances)we should apply P controller, PD controller, PI controller & PID controller ?

0 Answers  

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what is the basic need of domestic loads 1- voltage 2- current

0 Answers  

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We have a distribution transformer of 750KVA/11kv/440v and an AVR (Servo Stabilizer) of 750KVA on the LT side of distribution transformer. Also we have an ACB of 1200A on the output of distribution transformer (that is on the input of AVR). We want to have an MCCB on the output of AVR. What should be the rating?

0 Answers   SSPL,

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how to calculate insulation level of transformer?

0 Answers  

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I am B.E.electrical engineer having 7 years of experience in Transformer testing upto 315 MVA.I want to khow how I can get the 'Electrical Valuer' License.

0 Answers  

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HOW TO FIND OUT 1. LINE CURRENT, 2. PHASE CURRENT IN AN ALTERNATOR / TRANSFORMER WHICH IS FEEDING A I)STAR LOAD ii) DELTA LOAD, USING A CLAMP METER. NORMALLY WHEN WE USE CLAMP METER IN A DG SET THEN WHAT DO WE GET?? PHASE CURRENT OR LINE CURRENT.

13 Answers   Bhel,

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what happens in the primary side of the transformer if transformer is short circuited first and increasing the resistance of the short circuit gradually?

3 Answers   Emerson, IIT,

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