Induction type wattmeters operate on the same principle on which induction type ammeters and voltmeters operate.
Advantages. The advantages of induction wattmeters are the same as those of induction ammeters-long scale, freedom from effects of stray field, and good damping.
Disadvantages. (i) Change in temperature causes variations in the resistance of the moving element, affects the eddy currents therein, and so the operating torque. The error due to this is in part offset by a balancing effect due to change in temperature of the windings.
(ii) Change in frequency from that of the calibration value causes variations in both the reactance of the voltage coil circuit, which is highly inductive, and also in the amount of compensation from the phase-compensating circuit. Within the limits of frequency variation met within practice on the mains, this last error is not important.
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The principles of operation of the automatic voltage regulator is that of the excitation system. The working principle is to regulate the flow of reinforcement on the exciter.
The working principle of a turbo generator is that of forcing extremely hot condensed air into the piston chamber. The hot condensed air reduces the need for fuel.
The circuit works to put everything together. It can help to integrate all of the system so that you can have all of the things work together.
If I remember right, its out of this world great! I hope your dynamometer is working properly. I think the most I recall seeing when I gave grip strength test to college students was around 80.
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Wattmeters are used for the measurement of dielectric power loss. It is also useful for the calibration of commercial forms of wattmeter and watt-hour meter in laboratories.
1. Explain the working principle of a milling machine?
Working, working and working.
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explain how good working relationships can be developed with team members
turbine is working on priciple of change of momentum. change of moentum result in to work.
Explain the workin principle of uln and its abbreviation
Edmond Locard was the first person to apply principles of forensic science to a working crime laboratory. He applied what is called the Locard's exchange principle to a working crime laboratory.