Answer Posted / pradeep

stepper motor

Whats the minimum value for I.R. that can be allowed for HT & LT alternators for operation?

3973

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What is a Phase shift meter? Where can I get one?

2162

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for opening electrical shop, tips needed.

1776

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sir vizag steel ka junior trainee ka paper kitne number ka ayega

2191

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How to measure size of cable on a given load

1767

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What is proportional controller?

1230

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advantages and disadvantages of inverse definite minimum time RELAY

1495

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Hello sir, pls send me hpcl technical test papers .i am. Appearing for the exam.

2668

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can anyone tell me can the electromagnetic waves can be reflected back?if so how &by which material it can be reflected back?please tell me so that it can help to my wireless power trasnmission device.

1748

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Give the topology of current amplifier with current shunt feedback?

1167

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Where voltage are high and current to be interrupted is low the breaker preferred is:

2226

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what is meant by directional earth fault and non directional earth fault? describe both.

1840

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sir iam from electrical and electronics branch ,can i appear for the hpcl offline requirtment? if yes please mail me on vikram_raju25@yahoo.co.in

1979

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following are the questions asked in interviews: 1) Considering the short circuit fault, which switchgear is preferable, SFU OR MCCB? Which operates faster? whicg one is popular in Indian Market and why? 2)Define SCPD. What is type2 coodination? 3)Why the contactor rating is higher for the fuseless selection than for fuse selection? whether the ratinf of SFU or MCCB remains the same in both the cases? 4)If the HP rating is known then can you calculate the ratings of L.V Switchgear(SFU/MCCB, contactor, OLR) without using the selection chart?

2002

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In between UPS out going changer over switch and ups raising main input, both side cable gland producing heat but the cable doesn't get heat,Why?

2212

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