Answer / shahid

It is a case of short circuit, in short circuit voltage
drops to zero & current becomes infinite, this high current
sences by protective relay and circuit trips.

Answer / abhishek goyal

Its a symmetrical fault when 3phase line are connect each
other at that time its voltage is zero and current go at
infinite level which can be trip by relay. if relay are not
present it will effect the system equipment and load.

how can service sitting be setted for MCCB?Example for sittings IR (CURRENT RATING),IS(CURRENT STARTING)IO (current operating)?

0 Answers  

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why HT wire making noise?

3 Answers  

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Please provided formula for calculate the cable size from step up transformer to M.V panel, run overhead aluminum cables, total load is 5mega watt, total length 900 feet.

0 Answers   SK Engineering,

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What will happen if i connect two 3-phase tranformers secondary supply on one bus bar that is R-Y-B-N?

2 Answers   GMR,

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Why electric traction is used ??

3 Answers   IOCL,

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what is the difference between synchronous & asynchronous generators

1 Answers   Emco,

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How much CTs are required to measure th curent in DOL starting of motor?PLs explain.

1 Answers  

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What are the causes of having an rmu explode after installation? And how do u treat the bushings of an rmu?

0 Answers   JKN Limited,

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when a machine act as genartor and as motor?

2 Answers  

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Transformer Parallel Operations

1 Answers  

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Dear Brother can u tell the proper size selection of cable & the fault level calculation of braker, busbar etc. pls mail me at azeemk30@gmail.com

0 Answers  

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Differentiate between ideal and non-ideal voltage sources?

0 Answers  

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