Tag: Three-phase Transformer

Three Phase Inverter

Three Phase Inverter: The variable frequency required for the speed control of three phase ac motors is obtained from a Three Phase Inverter. To avoid magnetic saturation and to obtain constant flux conditions in the machine, the voltage fed to the motor must also be varied. Therefore an inverter feeding a three phase motor must […]

Three phase Transformer Bank of Single phase Transformers

Three phase Transformer Bank of Single phase Transformers: The different Three phase Transformer Bank of Single phase Transformers are namely, Delta/delta connection: The supply voltage provides only sinusoidal magnetizing current so that core flux is flat-topped; but the third-harmonic emfs induced (cophasal) cause circulating currents in deltas restoring the flux to almost sinusoidal. The third-harmonic […]

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