Construction of three phase synchronous machines An alternator consists of two parts, the stator, and the rotor. The stator is the stationary…
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three-phase transformer
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Electrical Machine Tutorial Electrical Machine Tutorial provides basic and advanced concepts of Electrical Machine Library. Our Electrical Machine Tutorial is designed for…
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Losses in Transformers There are two types of losses occurs in a transformer: Iron loss or Core loss Pi Copper loss or…
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Electromechanical Energy Conversion Principles An electromechanical energy conversion device is the device that converts electrical energy into mechanical energy or, mechanical energy…
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Single Phase Transformer The transformer is a static device which converts the magnetic energy into electrical energy. It consists of two or…
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Speed Control of D.C. Motors The relationship given below gives the speed of a D.C. motor The above equation shows that the…
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No-Load and Blocked Rotor Test The efficiency of small motors can be determined by directly loading them and by measuring the input…
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Starting of D.C. Motors A starter is a device that initiates and accelerates the motor. A controller is a device to start,…
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Open Circuit Test and Short Circuit Tests To determine the circuit constant, efficiency and regulation of a transformer, without actually loading the…
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Regulation and efficiency What is voltage Regulation? The term voltage regulation identifies the characteristic of the voltage change in the transformer with…