Answer Posted / a.p.nanjappa

voltage is 230v, 1ph. application being exhaust fan,supply
air fan, water pumps, . speed are generally
750,1000,1500,2800rpm.check the fan blades.3,4,6.

Does the motor power displayed on the Motor name plate is the mechnical power motor delivers or it is consumed power from the system?

3390

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what are the precuation should be taken ahen installing power transformer,circuit breaker,current & potential transformer

1603

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Why power factor should not be in leading (capacitive) mode of any load.

5887

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WITCH CARDS IN USE IN FIRE CONTROL PANEL.

1471

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How to calculate energy stored in a capacitance

702

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EXPLIAN THE IMPORTANCE OF POLY PHASE CIRCUIT.

1663

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for a 500 KVA connected load, I calculated 30% of capactor for power correction. Even after using 225 KVR capactor PF is not improving. What could be reason for low Phase correction factor?

1549

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What are the components connected in between the power supply coming from an electric pole to HT & LT Panels in a large commercial building or how the power supply connected from Electric pole to Transformer & then to the HT & LT panels of a building? Please send me answers via mail, my id is yogiagarwal@gmail.com. If possible, please give a line diagram.

1572

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why they were using TRIAC instead relay in some controllers and what is the advantages.

1528

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why ct ,cvt should be stored in a vertical position?

2134

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why ups rating in kva? and why ups are in parellel?.why isolation transformer is used in ups?

1483

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How does a tertiary winding filter harmonic(espcially 3rd one) from entering into load system?

1379

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what is a composite error in current transformers, why occurs & in which it will occur i.e, either metering ct/ protection ct

1304

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what is the size of cable for 15kw motor and 85 meter cable length using with vfd

1968

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is it possible to say motor horsepower number without seeing name plate(when name plate damaged)

4177

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