The power input to a three-phase motor is measured by the two wattmeter method. The three line voltages are 220 V and the current in each of the three line wires is 8 A. If the three-phase power factor is 0.866 lag, what are the values of power indicated by wattmeter 1 and  wattmeter 2?

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Q: What would be the same results of this quesiton if the circuit was single phase 1000v?

A: If True power is single phase i.e.,P1ϕ=10kWV1ϕ=1000VI1ϕ=12.33 A

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Q: In wattmeter, the coil connected in parallel is called.........................................?

A: In wattmeter, the coil connected in parallel is called

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A: The solution is given below

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A: The solution is given below

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A: The answer as given below;;

Q: EXP .No (5):- Load of serie Motor side Vinput(V)Ainput(A) Speed(r.p.m) Is Vemf At no load 90 back(V)…

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Q: Compare between 2-phase motor and universal motor

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Synchronous Generator

In comparison to an asynchronous generator, it is a machine where the rotor speed is equal to the rotating magnetic field produced by the stator, i.e., mechanical speed is equal to the electrical speed, thus called synchronous, and not asynchronous.

Salient Pole Rotor

Salient pole rotor includes a large number of exposed poles mounted on a magnetic wheel. The construction of a bright pole is as shown in the image on the left. The proposed poles are made of metal laminations. The rotor winding is provided on these poles and is supported by pole shoes.