Compact Substation

Henan GNEE Electric Co., Ltd. is one of the most reliable manufacturers and suppliers of compact substation in China. With abundant experience, we warmly welcome you to wholesale high quality compact substation at low price from our factory. Contact us for more cheap products.

A compact substation can be explained as a group of electrical equipment that is assembled on a trailer or platform. To ensure that a compact substation is capable of fully energizing upon its delivery to the required site, it is integrated and thoroughly tested in a factory environment. As compared to a conventional substation, a compact substation offer more advantages such as decreased construction duration, reduced space requirements, and enhanced safety.

Components of a Compact Substation

A compact substation typically consists of the following main components:

Incoming High-Voltage Section: This section is responsible for receiving high-voltage power from the transmission grid. It includes a high-voltage circuit breaker, disconnect switches, and lightning arrestors. The circuit breaker serves as a protective device that can interrupt the flow of current during fault conditions, while disconnect switches enable safe isolation of the substation during maintenance or emergencies.

Power Transformers: Power transformers are one of the key components in a compact substation. They step down the high-voltage electricity received from the grid to lower voltage levels suitable for distribution. The transformer comprises primary and secondary windings, and the ratio between the number of turns in these windings determines the voltage transformation.

Low-Voltage Section: This section of the compact substation includes low-voltage switchgear, which distributes the electricity to various feeders and consumers. It comprises low-voltage circuit breakers, fuses, and other protection devices to safeguard the distribution network from overloads and short circuits.

LV and HV Busbars: Busbars are conductive bars or rails that carry electrical current within the substation. Low-voltage (LV) busbars distribute power at lower voltage levels within the substation, while high-voltage (HV) busbars handle the incoming high-voltage power and distribute it to the transformers.

Control and Protection System: The control and protection system is the brain of the compact substation. It consists of various relays, sensors, and monitoring devices that continuously supervise the substation's health and performance. The system detects faults, abnormal conditions, and operates the necessary protective devices to ensure the safety and reliability of the substation.

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