Answer Posted / khan

Usually busbar sizes selection depends mainly on two
factors. Which is current + temperature. The size which you
are going to select must carry the current you need and
must not create much heat which excess the limits.

Our formula , we use 1.5 A / 1 sqmm.

Hi Suppose we have a wye/wye transformer which is grounded at both sides,in this situation, do we have ay ground transformer? in other words, ground transformer can do any thing more (while we have nuetral wire in both sides)? As the last question, what about 3rd harmonic? we have two choices: first using wye/delta transformer + ground transformer and second using wye/wye earthed connection.in the former choice, we dont have 3rd harmoonic at the secondary side but what about Yn/yn conection? do we suffer from 3rd harmonic in the Yn/yn connection?

2031

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why we not used 11kva as a direct our electrnics component.

2859

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What does quality factor depend on in resonance?

1141

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Discuss the effect of sudden loading of an induction motor

1922

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Why human body feel electric shock?

1144

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1.what is the reason for transformer and lightning arrester blast in 33kv system

3153

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What are the protections for safe running of electric generator?

2314

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what is the function of capacitor duty contactor in an capacitor panel???

4198

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How a capacitor discharge weld power supply works? what is the use of a pulse transformer?

2118

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what exactly commisioning work does in electrical site work... LT side?..

1993

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A 2083kva AVR was tested, phase to ground shows continuity, what is the implications

1088

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what are pilot cells

2168

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State uses of different types of stsrters with different capacities of motors as below: a. up to 5HP b. above 5hp to 10hp c. above 10hp to 20hp d. above 20hp

2136

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Why HT 11 KV Slipring Motors are connected in star ?

2280

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which cable is used for 15 Hp monoblock pump 3phase and service wire Distance is 210 feet please tell me cable size Armaured

1649

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