Answer Posted / umer

khalid shikh is absolutely correct

for a 500 KVA connected load, I calculated 30% of capactor for power correction. Even after using 225 KVR capactor PF is not improving. What could be reason for low Phase correction factor?

1964

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What are the section criteria for cables. Now everywhere XLPE power cable is used or PVC is also used?.

1666

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Explain bypass capacitor?

1157

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Why should be the frequency 50 hz 60hz only why not others like 45, 95 56 or anything , why should we maintain the frequency constant if so why it is only 50 hz 60hz?

1134

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why we permissive overreach in distance protection.where it is applicable to use in long r short lines

2762

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1. The DC generaror,s induced output emf is connected with a DC motor(as load). when increasing the load of the motor by using brake drum or any way. what are the parameters will changes in both motor and generator(voltage, current, resistance, frequency, speed, torque, power, flux etc...) 2. Similarly for AC generator and AC motor 3. similarly if using DC batteries instead of DC generator, What happens?

2296

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brief notes on ammeters

2031

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Advantages of using generator circuit breaker (GCB) scheme in a power station ?

5276

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Whether amorphous core transformer is available in India?.If available then up to what rating of voltage and KVA?.

1733

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What is instrumental error?

1192

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What is meant by a stray loss of a induction motor??? What is the equation to find it

3090

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Why we are using Isolation Power Transformer inplace of commercial power transformer? What's the difference between them?

2155

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please give me all the Alarm .Trip ,Safety Relays & Conditions of Chiller mail me on ashokbabunhce@gmail.com

1828

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temp of cast resin 1500kva tx formerwent up to 138.c but came down very fast to about 100.c within 20 mins when load was reduced from 70% to 60%

1920

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What is the meaning of floating point earthing in battery backed systems ?

2017

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