Answer / ranjith

It detects the faults of winding in neutral grounding side

Answer / k.prakashchandra

REF is restricted earth fault relay, for internal earth fault of Tr . SBEF is standby earth fault relay or backup for both internal and outside earth faults . The CTs of both are connected to neutral of Tr. Discriminative setting is required

Answer / suresh

Ref is restricted earth fault, The relay was acted  for winding to winding shorted with ground.

what is the difference between series and shunt compensation using facts in a transmission line

8 Answers   College School Exams Tests, Genco,

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why earthing point in the 6amps/16amps socket bigger than the remaining (Phase & Neutral)points.

1 Answers  

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In some countries it is found that an Earthing Transformer is connected at the LV sides of the Transmission and Distribution Substation Transformers.Actually what is the purpose the Earthing Transformer?

1 Answers  

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what the principle of sincroscope?how it works?when it needed?

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Off-circuit Tap changers in distribution transformer required

1 Answers  

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What does the temperature (30 deg or 35 deg celcius) mark on conservator of transformer indicates?

2 Answers   MahaGenco,

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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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How to calculate the CFM to TR? What is the Formula

12 Answers   Carrier, Voltas,

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Why let through energy not considered for ACB breaker while cable sizing?

0 Answers  

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what is ph test in coolent cheking

2 Answers  

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gas turbine genrator reactances

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defination of a.c filter

0 Answers  

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