Answer / jim

SCADA does not control frequency. The source generators produce at 60 cycle. The ultimate load on the grid will never be perfectly matched with the generation. This load mismatch will control the grid frequency by + or - from 60 cycle. Your wall clocks will change speed.

If mutual flux is 1.2wb & power factor is 0.8 lag , then what is the Useful flux of a transformer?

0 Answers   Nalco, NTPC,

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why the rotor is outside in case of ceiling fan?

1 Answers   HCL,

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If load current is 70amps or 50amps what range of CT to install for ampere metering

3 Answers  

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. Why the transmission lines are in 11kV, 22kV, 33kv, and why not 10kV, 20kV, 30kV?

3 Answers  

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what is the difference between transformer and amplifier ??

5 Answers  

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What happens to voltage when current is zero?

0 Answers  

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Which type of drive is advantageous AC or DC and why?

5 Answers  

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How much resistance between neutral earthing and body earthing of Power transformer?

1 Answers  

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In diesel generator how AVR get voltage to excitation. And basic diagram DG EXCITATION CIRCUIT.

0 Answers   Hyatt,

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IN Electric train which type of motor is used,for what reason they uses?

3 Answers   L&T,

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Which system is best for industries 3ph 3w or 3ph 4w?

3 Answers  

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what is the formula for transformer oil?

1 Answers  

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