Answer / a.p.nanjappa

150kw , 440 is a large motr. the starting current of this
induction motor will be 5-8 times depend on drive ex-fan.
and coast for 6-8s to attain full speed.
so, the new contactor shall be good quality , with
overload,instantaneous with time delay shall be selected.
Reverse rotation protection, vibrations,
Unbalnced current protection optional.
LV power cable terminal box cable connection and support.

sir please tel me how calucalte kwh if home taken load 30ams how maney kwh taken per day.and 3phase motor 5hp per hars how maney load teken and how mach kwh and forward me to electrical table for calicalte kwh and kvr and kvah

1 Answers  

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why in a swquence network representation, the negetive sequence generated voltage is taken as zero?

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From reading, Under voltage relay used also as phase sequence relay now, Why I use under voltage and phase sequence relay in the same circuit (ATS)?

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How do you connect the capacitors on polyphase circuits?

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Why we called L-G fault as line to ground fault why ground? suppose if a line falls on building roof then can we called these fault as line to roof fault? please explain why ground term is used here?

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why stone used in Transformer yard.

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single phase power supply give to separate one steel coup with water, what reaction create

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how can motor both beasrings insulation resistance can be check?

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which supply is used in traction system

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while starting a liquid starter ,is there any volage drop on water/soda on tank.can we touch the tank on starting?

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why in crona effect it give violet colour.

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difference b/w series&parallel

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