Jun 22, 2022 · When generators at a consumer''s substation operate in island mode (Utility power supply disconnected) the voltage and the frequency at the main substation level are both fixed
Substations do not (usually) have generators, although a power plant may have a substation nearby. A typical substation will contain line termination structures, high-voltage switchgear, one or more power transformers, low voltage switchgear, surge protection, controls, grounding (earthing) system, and metering.
The substation receives electrical energy directly from generating stations through incoming power supply lines while it delivers electricity to the consumers through outgoing transmission lines. A substation which is near to the electrical power generation is also known as grid substation.
Substation are used to transform the voltage with power transformer. From low voltage to high voltage at the power plant with breaker and control system to be able to transport the energy, and other substation at the arrival to decrease the voltage.
A typical substation will contain line termination structures, high-voltage switchgear, one or more power transformers, low voltage switchgear, surge protection, controls, grounding (earthing) system, and metering. Other devices such as power factor correction capacitors and voltage regulators may also be located at a substation.
For the most part, electric power substations are viewed as the most integral part of a power utilities’ electric system, with electric systems being comprised of power generation, transmission, and distribution systems. (See A Basic Explanation Summary of How the Electric Power Grid Works)
Substations can be generally divided into three major types (according to voltage levels): Transmission substations integrate transmission lines into a network with multiple parallel interconnections, so that power can flow freely over long distances from any generator to any consumer. This transmission grid is often called the bulk power system.
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