What is Repulsion Motor? Working, Diagram, Construction & Advantages
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Basic Electrical
What is Hysteresis Motor? Working, Diagram, Construction & Applications
A single phase non-salient pole synchronous motor with no D.C excitation is known as hysteresis motor. This motor is so called because it runs on torque produced by the hysteresis loss induced in the rotor. Figure 1: Hysteresis Motor.
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Maximum Torque of Induction Motor – Derivation & Condition
We know that the expression for torque of an induction motor under running condition is given by, \[T=\frac{KsE_{2}^{2}{{R}_{2}}}{R_{2}^{2}+{{(s{{X}_{2}})}^{2}}}\]
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What is Constant Voltage Transformer (CVT)? Working Principle, Diagram & Applications
A constant voltage transformer (CVT) works on ferro-resonant principle. The variation in the primary flux with an unsaturated iron core does not affect the secondary flux with saturated iron core. Thus, the secondary induced voltage remains relatively independent of the voltage impressed upon the primary winding. Fig. 1: Constant Voltage Transformer (CVT).
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What is Mercury Vapour Lamp? Working, Diagram, Construction & Uses
The lamps in which the light is produced due to the how of electrons through the gas are known as the gas discharge lamps. Mercury Vapour Lamp is a gas discharge lamp. It has high operating pressure with mercury vapours, so it is called as the high pressure mercury vapour lamp. Figure 1: Mercury Vapour
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What is Megger? Working, Construction, Diagram & Applications
Megger is a portable instrument for measuring high resistances in which the voltage range can be controlled by using a voltage selector switch. It is not only used for measurement of high resistances (insulation resistance), but also can be used for testing of insulation resistance. One more advantage is that deflection of the instrument is
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What is Sodium Vapour Lamp? Working, Diagram, Construction & Uses
It is also the gas discharge lamp in which sodium is used, so this is called as the sodium vapour lamp. Fig. 1. Sodium Vapour Lamp.
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What is Thevenin’s Theorem? Statement, Formula, Steps & Examples
Thevenin’s Theorem is very useful particularly when the current in one branch of a network is to be determined. Statement of Thevenin’s Theorem Thevenin’s Theorem states that for the purpose of determining the current through a resistor RL (called load resistance) connected across any two terminals A and B of a linear bilateral network with
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