In motors how many types of cooling systems were used?
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the inertia constants of two machines are respectively 30and 42 MJ per MVA.when the change in frequency due to change in load in first machine is 12 Hz,the change in second machine frequency will be?
we have earthmat at 110KV substation.we would like to take earth resistance.b some says that by connecting earth megger terminals (C1,P1) at middile point of earthmat (at riser) will cause voltage gradient at other earthmat nods and dont get exat earth resistance.when connecting at end nods will get exat value . is it correct .please explain
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Is vtg is controlled by the resistor? if else how much?
We have 3 Gensets 1.500kva,2.380kva,3.250kva How can we connect in common busbar&we have variable load.
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What will be the voltage regulation of a full load and 0.80 power factor lagging load transformer when a two winding single phase transformer has a voltage regulation of 4.5% at full load and unity power factor?
Explain Power factor in simple words
How to identify phases in the transformer like motor and AC generator but one condition without phase indication like(RYB,UVW)?
What is the bundle conductor?
Double Busbar Scheme for outdoor switch yard system (132kv) step up power plant Hi friends 1. in this system both busbars energized all the time. 2. what is the meaning of main BB and transfer BB, 3. step up transformer connect main bus bar all the time or both BB connected through DS switch . 4.bus sectionalization means ? thank you.
Could you measure voltage in series?
What is Goerges phenomina to start SYCHNOUSMOTOR?