What is Permanent Magnet Stepper Motor? Working, Diagram & Construction
Figure 1: Permanent Magnet Stepper Motor.
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What is Capacitor Start Induction Motor? Working Principle, Diagram & Applications
In the capacitor-start induction motor, a high value of capacitor usually electrolytic type of capacitor is connected in series with the starting winding or auxiliary winding. Fig. 1. Capacitor Start Induction Motor.
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What is Shaded Pole Induction Motor? Working Principle, Diagram & Applications
Shaded pole induction motor is more or less similar to single-phase induction motor. The stator poles of this motor are wound only with main winding, so as to make them electromagnets. The pole has a slot cut at one third for one end for housing high reactance but low resistance copper bars enclosing a part
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Temperature Coefficient of Resistance – Definition, Formula, Derivation & Unit
Figure 1. For pure metals, the resistance increases linearly with increase in temperature as shown in Fig. 1.8.2, and for a certain range of temperature (typically 0 to 100ºC) the rate of increase of resistance (slope of the line) remains constant. The resistance of metals reduces with reduction in temperature and it reduces to 0
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Series and Parallel Connection of Batteries – Theory, Diagram & Formula
The batteries are available with some specific terminal voltages. e.g. 1.5V, 6 V, 12 V, 24 V, 48 V etc. If we want to have some terminal voltage other than these standard ones, then series or parallel combination of the batteries should be done. One more reason for connecting the batteries in series or parallel
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What is Thermistor? Working Principle, Symbol, Definition, Meaning & Diagram
Thermistor or Thermal Resistor is a two terminal semiconductor device whose resistance is a temperature sensitive.
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What is Cuk Converter? Working Principle, Waveforms, Circuit Diagram, Formula & Derivation
The cuk converter is dc to dc converter gives an output voltage which is less than or greater than the input voltage with a polarity reversal. That means, the polarity of output voltage is opposite to that of the input voltage. Figure 1 shows the cuk converter using BJT.
What is Thyristor Controlled Reactor (TCR)? Working Principle & Diagram
A TCR is a thyristor controlled inductor, connected in shunt with the line, in which the thyristor valve is controlled by partial conduction, in order to continuously vary the effective reactance of the line. TCR is a Variable impedance type static VAR generator, in which the reactor current can be varied by applying the firing
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Open Circuit and Short Circuit Test on Transformer – Experimental Set-up & Procedure
The Open Circuit and Short Circuit Test on Transformer can be used to determine the efficiency and regulation of a transformer at any predetermined load for that we do not have to actually load the transformer. The parameters of the equivalent circuit of a transformer can be obtained by using the open circuit (O.C.) test
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What is Static VAR Compensator (SVC)? Working Principle, Diagram & Advantages
A Static VAR Compensator (SVC) is a shunt connected static VAR generator or absorber in which control of certain power system parameters are achieved by exchanging the capacitive or inductive current which is possible by adjusting its output. SVC is a common name for a thyristor-controlled or thyristor-switched reactor, and/or thyristor-switched capacitor or combination. Figure
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