Answer Posted / gopi

electrical earthing is the basic step to be taken for
protection of personnel and equipment in case of fault like
over current and over voltage conditions. even system
equipment should earthed to prevent damage of internal
equipment.

In EB metering we face problem kva jump even in no load condition.can any one help to control this

1885

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in Contactor opearation Why there is a difference in the values of the operate and release voltage in case AC supply

2170

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What is current divider rule (cdr)?

1385

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What is the ratio of Booster transformer?

2217

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why we use two slope(differential & restraining) in differential relay.but in busbar protection differential we are using only one slope?please explain

2331

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Is it good to short Neutral and Ground in the PLC or DCS main Power supply. Pls give YES or NO with reasons...? Simarpreet

2592

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what is the formula for calculating the phase clerance between two phases and phase to earth how to calculate the cable for a motor

2095

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please forward me the type of questions which would rise while me attending to 33KV Electrical License to my mail ID:vadrevu_raghava@yahoo.co.in

2067

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what is load despatching

2293

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What types of CMOS memories have you designed? What were their size? Speed? Configuration Process technology?

3741

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what is earth resistance? how to measured? and give values at power station and mcc area?

2026

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what will happen if i connect 12 volt battery with 24 volt battery charger.

1939

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in the directional overcurrent and earthfault protection,normally we are setting the angle 45 deg lead for phase fault overcurrent and -45 deg lead for earthfault fro forward direction.but both the fault are operating on the same angle region only.why?how the relay will response?

1883

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What is stepper motor?

1355

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I have motor 1500 HP and , 4160 V , 60 HZ , then i need the rating of transformer which can feed that motor ??

2003

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