Answer Posted / ganika

Lightning arrestors are always connected between line to
earth. Line to earth Voltage of a 11 kV System is 6.35
kV. The lightning arrestors voltage grade also same, But we are selecting the Standard, suitable, and safe apparatus availability in the market.

Why do we mostly prefer to generate and distribute electricity in 3 phase and not in 4 phase or 5 phase?

1252

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what is the affect of earth's magnetic field on the frequency used in aircraft???

2053

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Why armature rheostat is kept in maximum position?

1153

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What are the types of transformers according to the arrangement of iron cores?

1177

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What are motor generator sets and explain the different ways the motor generator set can be used ?

1227

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whether starting current is limited to rated current of motor through soft starting or it exceeds the rated current?

1658

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Why arc quenching is used in Diode ?

2233

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why Lightning arrestor are made by 2 seperate stack of inslutor but why cvt are in single stack of insulator.

2028

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We have 5 Distribution sections with variable loads&We have 3 Gensets(500kva,380kva&250kva) our total load is between 400kva to 600kva. so how could we connect 3gensets.

1909

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What is the difference IN MCCB's between thermal magnetic and electronic tripping system ?

2119

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How to megger test 11 kV cable and the acceptance IR value

3037

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Can you any one explain application of buccholz relay operation and pressure relif device operation of power transformer

1903

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do anyone out there know where to find a compleete list on acronyms/abbreviations used in offshore electric engineering. MCB - Micro Circuit Breaker, MCCB-Mouldes Case Circuit Breaker, ELCB-Earth Lekage Circuit Breaker, ELMCB- etc.....

2133

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5.WHICH TYPE WELDING PROCESSES USES NON CONSUMABLE ELECTRODE.........

2134

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What are approaches to tackle sedimentation problem of reservoir?

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