HXGN11-12 Box Type (Fixed) AC Metal-clad RMU (hereinafter referred to as “RMU”) is designed and researched by our company through absorbing and digesting abroad advanced technology and combining power supply requirements of state. It is a new generation HV electric appliance and can be applied in city grid transformation and construction. Internal components adopt national advanced products. The product is subjected to type test and long-term commissioning examination, the performance meets the requirements in IEC 298 “More Than 1kV (including 1kV) But Not Exceeding 52kV AC Metal Closed Switchgear and Control Equipment” and reliable anti-misoperation measures.
a. Enclosure of RMU is a sealed structure, which consists of basic framework, top plate, panel, side plate and so on. Basic framework, top plate and side plate are made of steel plate.
b. Busbar room is on the top of RMU. Control room is on the front of busbar room and divided with steel plate. Load switch room is in upper parts. Cable incoming and outgoing room and other components room are in middle and low parts respectively.
c. Main components of RMU include vacuum load switch with isolation, earthing switch, fuse, CT, PT, lightning arrester and HV live display and so on.
d. Instrument room is equipped with voltmeter, ampere meter, change-over switch, relay, indicator light and components. The terminal block at the bottom of instrument room can be equipped with secondary circuit terminal strip and protection fuse and so on. Instrument room of measuring cabinet can be equipped with watt-hour meter, reactive energy meter, peak valley and batcher etc.