NISR AL EMARAT

ELECTRIC POWER PLANT GENERATOR

An electric power plant generator is the key component in a power plant that converts mechanical energy into electrical energy

A generator in a power plant is a machine that produces electricity by spinning a rotor inside a stator to induce an electric current. It uses electromagnetic induction

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Specifications of ELECTRIC POWER PLANT GENERATOR

Specification Typical Value
Power Output 10 MW – 1500+ MW
Voltage Rating 11 kV – 25 kV (generator terminal voltage)
Frequency 50 Hz (Europe, Asia, Africa), 60 Hz (North America)
Synchronous Speed 3000 RPM (50 Hz), 3600 RPM (60 Hz)
Power Factor 0.8 – 0.95 (lagging)
Excitation System Brushless or Static Excitation
Cooling Method Air-cooled (small units), Hydrogen or Water-cooled (large)
Efficiency 95% – 99%
Insulation Class Class F, Class H (temperature tolerance)
Construction Horizontal shaft with cylindrical rotor (for high-speed)
Rotor Type Salient pole (for hydro and low-speed), Cylindrical (high-speed)
Voltage Regulation ±0.5% or better
Protection Features Overload, temperature, vibration sensors, earth fault protection
Synchronization System Automatic, digital AVR, load sharing controllers
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