Energy storage operating mechanism of ring main unit

What is ring main unit?

The system usually uses ring network power supply, the use of high voltage switch cabinet is commonly known as ring main unit. In fact, if the cabinet type is classified according to switch equipment, there are load break switch cabinet, circuit breaker cabinet, PT cabinet and so on, and there is no ring main unit.

How do ring main units work?

On ring main units, a gas pressure indicator is fitted to the tank for providing a reliable warning indication against low gas levels. The gas pressure indicator has sections to show the minimum pressure for safe operation. All ring main units are integrated with a voltage presence indication system.

What are the advantages of ring main unit structure?

Ring main unit structure is simple, reliable and safe operation, maintenance is small, low operation cost, compared with the switchgear equipped with circuit breakers, the advantages are very prominent.

Where is the operating mechanism room located?

The operating mechanism room is located in the front of the ring network cabinet. In each functional loop, the load switch is equipped with human (or electric) energy storage spring operating mechanism, and the grounding switch is equipped with human energy storage spring operating mechanism.

What is ring main unit (RMU)?

Ring Main Unit (RMU) Components Functions Types and Applications - Ring Main Unit (RMU) is a switchgear device used in secondary distribution systems, i.e., between the distribution substation and the end consumer to ensure continuous power supply and isolate the faulty section from the network.

What is ring Min unit?

Ring min unit is a conventional name, the original refers to the load break switch cabinet used for ring network power supply, now regardless of whether it is used for ring network power supply, such as some lines to close loop operation or load cutover, the power distribution cabinet to achieve these functions is called ring main unit.