Answer Posted / tamil

To avoid the negative current flow

why actual valve timing diagram is different than ideal valve timing digram of a 4 stroke engine?

5572

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why core is useful for a transformer ?and also in its operation ?

2099

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Can any one provide the inspection procedure of MIMIC for VFD panel? Details: If someone wants to have a mimic in the VFD panel what are inputs considered for the mimic(like on,off,trip) whether we are able to add speed variation in the mimic(if so how can we get) and what are the parameters to be checked in the MIMIC during inspection?

2195

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Why phase sequence must be same in any ht motor or generator circuit?if phase sequence doesn't same whatever will be affect on circuit?

2205

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what is the meaning of neutral displacement ???

2743

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why T/F winding temp measurement cts are odd secondary current ie,109A/1.2A/1.4A?

1864

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What is the Resposiblity of Electrical Utility Engineer

2924

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What is the difference between shortcircuit current, rated current of cable & MCB with example? What will be the size of cable required for 5.5 KW motor (Full load current 10 Amps approx.), Starting current with DOL is 120 Amps. Aprrox. Short circuit current with LLLG fault is 2000 Amps Approx.

2044

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How to size fuse? How to size MCB?

1521

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What are the causes of unbalanced current on 34.5kv feeder Ia=0.05,Ib= 0.25, Ic=0.15 and In=0.27 prior to tripping current are balance?

1742

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what is load vs Torque curve & why it is used?

2071

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In an ACB shunt trip coil and undervoltage coil operated normally( breaker open and charged). But closing coil not operating untill manually discharge and recharging. Any help.

1749

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What is inverse definite minimum time lag relay? Where is it use?

2822

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what is meant by loss of field in a DC motor? how a universal motor works?

1847

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what is the difference between transformer,converter and transducer

1671

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