Answer Posted / ali

core losess are depend on lamination of the core,and
freqency
copper losess are depend on the current flow in the
core,and frequency does not depend on power factor

I had applied for JE in PSEB, Can you pls send me the Question bank for related to my field

1911

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what is negative d.c. voltage, why this voltage is used in base transciever station.

2202

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how to calculate vfd o/p voltage by frequency

2204

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please describe the Transformer setting, Motor setting, I/C setting, Tie setting

1829

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WHAT IS THE SIGNIFICANCE OF VECTOR GROUPS IN TRANSFORMER? WHAT WILL BE EFFECT WHEN PHASE DISPLACEMENT CHANGES IN TRANSFORMER?WHAT IS THE NEED TO BE PHASE SHIFT CHANGE BETWEEN THE PRIMARY AND SECONDARY WINDING

1859

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What is The Resistance Formula

1313

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neutral earth resistance testing is it possible for transformer while in load condition

2013

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On a 6 KVA UPS we have to provide a DC MCB for Battery bank of 16 nos (12 V 42 AH). What Shall be the current rating of DC MCB ?

2717

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

4144

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whatis the commertial spec. of distribution boards ?

2129

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hi, i finished b.tech eee in 2008, im worked in dg sets mfg company , now i left job in 6months back, now again i want get job core side, how can i get? is there any couses we have learn to get better oppurtunity? /

2026

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he compression ratio for a petrol engine generally lies between

1371

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what is the difference between neutral and earth

2187

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pls someone send me sample question papers along with the key.thanks in advance

2439

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As we use capacitor bank in 3ph ckt to improve PF, can we use capacitor in single ph domestric use, in house we have Fan,Mixer,electric cooker,iron,tube choke they also lag the system,because it is inductive load. if it is possible to improve PF of single ph system-- if yes- type of capacitor to be used,connection diagram, working in detail. if no-- list it.

1843

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