Electrical Engineering Study Material

High Voltage Circuit Breaker Principle

High-voltage circuit breakers (including breakers rated at intermediate voltage) are used for service on circuits with voltage ratings higher than

A low-voltage circuit breaker is one which is suited for circuits rated at 600 volts or lower. One of the

A circuit breaker is a device that is used to completely disconnect a circuit when any abnormal condition exists. The

Plant facilities rely on dependable electrical distribution systems to provide power to key vital equipment. Knowledge of the basic electrical

The multimeter can be used as an ammeter, an ohm meter, or a voltmeter. Meggers are used to measure insulation

A synchroscope indicates when two AC generators are in the correct phase relation for connecting in parallel and shows whether

The ground detector is an instrument which is used to detect conductor insulation resistance to ground. An ohm meter, or

A power factor meter is a type of electrodynamometer movement when it is made with two movable coils set at

The ampere-hour meter registers ampere-hours and is an integrating meter similar to the watt-hour meter used to measure electricity usage

Total power in a 3φ circuit is the sum of the powers of the separate phases. The total power could