Answer / pnverma19

diffrential protection use for protecting of transformer
internal fault

Answer / thaker harit

transformer differential protection is that when the earth fault current is higher so that h.v side and l.v side transformation ratio must be maintain but that time the ratio could not be maintain that time transformer will be tripped in differential.

Answer / m.w.

Differential protection compares de primary currents with secondary currents (which must keep the same ratio) in order to detect a "differential" current between them caused for an inner fault.

What are the differences between single phase and three phase?

0 Answers   ABB, Essar,

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what is meant by k-rating in isolation transformer?what is k9, k14 stands for?

0 Answers  

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i have one source transformer with the capacity of 50KVA, connected with two loads 10kw and second one is 15kw.. how can i calculate first load in KVA and second one in KVA .. because Kva rating, power factor rating of of transformer is different from the load… there must be some way to calculate load KVA rating and power factor….

1 Answers  

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what is the meaning of osr in transformer.

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where transformer is installed? a)generating station b)substation c)voltage regulating area

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How the current flows in dc circuit?

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in industrial lighting in each circuit how many lamps can be given? and how much load can be put on each circuit? is there standard for this? please help me with the standard description?

3 Answers  

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why the field winding in dc motor is not short circuited eventhough dc supply is applied across the winding

0 Answers   Torrent Pharma,

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How can i run three phase bore well motor in 2 phase while i running it by using capacitor its ams increase to 23 ams the distance from motor to stater is 1600 feet

0 Answers   Private,

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Explain the following and how these are working with PLC Unit 1 I/O Module Card 2 Adaptor Card 3 Ribbon Adaptor 4 I/O bus 5 I/O Devices

0 Answers   Mayur,

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how to i get B licence,i am completed BE electircal and electronics engineering.i want to konw the proceduure to get b licence

0 Answers  

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How can I communicate with an Areva MiCOM P121 relay by RS485 port? In other word, which command can I send and what information can I have recieved? please send some refrences, please. thanks

3 Answers  

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