Answer Posted / suresh

Voltage (+ Or -) 3 And Frequency (+ Or -) 1Hz

What is the abbreviation of NGT panel

1980

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I have a small system with two motors that are running on 380 vac, 60 hz. These motors are expensive and I usally get them from Brazil. I am adding another motor to the system, but I want to purchase a 480 vac, 60 hz motor to use. It will be on a VFD that is rated fro 380 thru 480. Is this posible and will I have to use a larger motor and derate it?

1913

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why EMF IS INDUCED IN A CONDUCTOR WHEN FLUX LINKING WITH IT CHANGES ACCORDING TO FARADAYS LAW.

1962

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how to calculate differential current when we testing differential relay..suppose we have 1000kw generator,630amp VCB,what value we should put /inject so that relay trip the VCB? PLLZ justify ur comment

1522

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I meggared my 2c*70 sq mm AL AR XLPE cable. its one end show 50 M ohm . is my cable is safe for laying. I have only one phase and neutral.

1797

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what is the meaning of vcc

2432

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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

3896

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I have been using an 600VA with 0.6 p.f UPS with my desktop which has 450W power supply unit. Can anyone explain how can this happen . Because the output of the UPS is 360W (600*0.6) (<450W)

2071

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what do you mean by type zero control sytem ?Give an practical example of type zero contol sytem?

1904

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how does an centrifugal and screw type chiller will work. which chiller efficiency is high and why.

2226

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why capacitive load is not used in routine life????any reason is there ??????

1660

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pre arcing time of ehv breaker

2073

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what is invertor supply and raw powersupply

2035

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Why single phase induction motors are not self starting ?

1599

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What is MS-EXCELL?

2171

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