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Transformer losses

Load loss or copper loss occurs in the primary and secondary coils of transformers, is the result of coil resistance. It is load-dependent. It is … See more

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500 Electrical Terms and Definitions Electrical glossary

WEBElectric Motor Controller. A device or system that regulates the operation, speed, direction, and torque of an electric motor based on control inputs or feedback signals. Electric …

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Transformer Tap changers: Off-Load and On-Load tap changers

WEBTap changers are voltage regulation equipment used to adjust the voltage ratio in transformers by adding or removing tapping turns. Voltage adjustments can be made by …

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Voltage regulation of transformers and its significance

WEBVoltage regulation of transformers can be defined as the change in the magnitude of the secondary voltage of a transformer when the load changes from full load to no-load, …

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5 types of grounding: Solid, Resistance, reactance, Resonant

WEBTypes of grounding. Depending on how the equipment is grounded, a grounded system can be classified as follows: Ungrounded system. Solid grounded system. Resistance …

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Drawout circuit breaker positions and indications explained

WEBA draw-out ACB has a fixed part and a moving part. The fixed part, known as the draw-out cradle or chassis, is attached to the cabinet assembly, and the moving part which is the …

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Ungrounded systems

WEBA ground fault results in the flow of capacitive current at the point of fault. This may cause repeated arcing and build-up of excessive overvoltages with respect to the ground. The …

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Transformer noise (Humming sound of transformers)

WEBHumming sound of transformer is caused due to magnetostriction of transformer core. It is associated with expansion and contraction of core laminations. The frequency of noise is …

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What is K-factor rated transformer

WEBDefinition of K-Factor rating. It is the value that determines how effectively a transformer can handle harmonic currents while maintaining the temperature rise well within the limits. …

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Difference between PLC and DCS

WEBPLCs can be made redundant with additional hardware which makes them more expensive than DCS. Redundancy is a default feature of distributed control systems. Architecture. …

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