XGN66-12(Z)Environment-friendly gas insulated metal enclosed switchgear

Product Overview
XGN66-12 (Z) type fixed enclosed switchgear (hereinafter referred to as switchgear) is a complete set of high-voltage electrical products produced by our company, which meets the requirements of the national standard GB3906 "3-35kV AC Metal Enclosed Switchgear", the Ministry of Electric Power DLT404 "Technical Conditions for Ordering Indoor AC High Voltage Switchgear", and also meets the international standard IEC60298 "AC above 1kV and below 52kV Requirements for Metal Enclosed Switchgear and Control Equipment
This product has absorbed excellent foreign technology and is small in size, only 50% of the volume of a regular switchgear; Circuit breakers have the advantages of high reliability, good performance, and reliable and simple five prevention interlocking mechanisms The switchgear is an indoor complete set of equipment with 3.6, 7.2, 12kV three-phase AC 50Hz single busbar segmented, used for receiving and distributing electrical energy. And it has functions such as controlling, protecting, and monitoring circuits, and can be used in various types of power plants, substations, industrial and mining enterprises, high-rise buildings, etc. It can also be combined with ring main units and applied in switch stations

Structural Features
The cabinet is made of high-quality angle steel welded together
The circuit breaker room is located in the lower part of the cabinet, making installation, debugging, and maintenance convenient; Equipped with ZN63A (VS1-12) circuit breaker as standard, and equipped with pressure release channel to ensure personal safety
Adopting advanced and reliable rotary isolation switches, it can safely enter the circuit breaker room for maintenance when the main busbar is live
The full cabinet protection level is IP2X
◆ Equipped with a reliable mandatory mechanical locking device, it can easily and effectively meet the "five prevention" requirements
◆ Have a reliable grounding system
The door is equipped with an observation window, which can clearly observe the working status of the components inside the cabinet
The operating mechanism adopts JSXGN locking mechanism for XGN2-12 cabinet, which is simple, reliable, convenient and practical
The incoming and outgoing cables are located below the front of the cabinet bottom, making it convenient for users to connect
Normal usage environmental conditions
The altitude shall not exceed 1000m
Environmental temperature: -25 ℃~+40 ℃, with an average temperature not exceeding+35 ℃ within 24 hours
The horizontal inclination shall not exceed 3 °
The seismic intensity shall not exceed 8 degrees
◆ No places with severe vibration, impact, or explosion hazards


Maintenance and Overhaul
Users should regularly maintain and inspect the switchgear, including:
Clean up dust from all parts, especially the accumulated dust on the surface of insulation components
Check the moving parts of the machinery, regularly add lubricating grease to keep them flexible and reliable in operation
Check whether the electrical contact parts are in good contact, whether there is overheating, and whether the grounding circuit is conductive:
Regularly check whether the fasteners are tightened
Users should generally conduct troubleshooting with the assistance of professionals. For minor adjustments and faults, users should refer to this manual and the respective manuals for the main components for self maintenance
Install
Refer to the following diagram for the installation foundation. The protrusion of the foundation steel should be within 1-3mm, and the unevenness should not exceed 1.5mm per meter. The overall length should not exceed 5mm
Place the switchgear in order on the foundation, adjust the installation position, and then fix it with M12 bolts or spot welding method. Tighten the cabinets with M8 bolts
Remove the cover plate and install the main busbar and primary power supply. The terminal contact surface should be cleaned and coated with neutral Vaseline. After installation, seal the cable hole
Connect the indirect grounding busbar of the cabinet, so that it is integrated along the direction of the switchgear arrangement. Check whether there are any omissions in the working grounding and protective grounding, whether the grounding circuit is connected and conductive. The working grounding resistance should not exceed 1000 μ Ω, and the protective grounding resistance should not exceed 4 Ω
Install secondary cables, which are introduced from the bottom of the cabinet and enter the low-voltage chamber along the measuring wall, and are then tapped onto the terminal block; Alternatively, the low-voltage chamber can be introduced from the secondary busbar on the top of the cabinet, and the cable holes can be sealed after installation
Clean the dust and debris inside the cabinet