HXGN□-12 series fully insulated, fully sealed, environmentally friendly gas insulated ring network cabinet

Product Overview

HXGN□-12 fully insulated and fully enclosed gas ring network cabinet products are widely used in 10kV/6kV power distribution systems and are the switching products of choice for various types of urban and rural user power transformation and distribution systems. The switch cabinet is a modular unit model that can be combined according to different uses; it is divided into two categories: fixed unit combinations and expandable units to meet the needs of various substations for flexible use of compact switch cabinets.  HXGN□-12 fully insulated and fully enclosed gas ring main unit is a completely sealed system, with its electrical components and switches enclosed in a stainless steel body. The entire switchgear is not affected by external environmental conditions, thus ensuring operational reliability and personal safety. And it is maintenance-free. By choosing expandable busbars, any combination can be achieved, achieving full modularity. Extended busbar safety insulation and shielding ensure reliability and safety. HXGN□-12 fully insulated inflatable ring network switchgear can also provide TV-based automation solutions, forming the concept of intelligent switches and greatly reducing the workload of on-site installation and debugging.  HXGN□-12 fully insulated and fully enclosed gas ring network cabinet is divided into non-extended standard configuration and expandable standard configuration. Due to its full-module and semi-module combination and self-expandability, it has extremely special flexibility.  HXGN□-12 fully insulated and fully enclosed gas ring main unit complies with GB standards. The design life of operation under indoor conditions (20℃) exceeds 30 years.

Model and meaning

HXGN□-12 (V)/T630-20

H-Ring Main Unit

X—Box type

G—Fixed

N—Indoor

12—Rated voltage (kV)

V—Cabinet type name: 
C: Load switch cabinet; F: Fuse combination cabinet; V : Vacuum circuit breaker cabinet; 
SV, SL, Busbar segmentation cabinet; M: Metering cabinet; PT: PT cabinet ( Total cabinets are composed of C,F,V,SV,SL any combination.)

T—spring operating mechanism

630—main bus rated current (A)

20—Rated short-circuit breaking current (kA)

Product Features

1. Structural composition 
The switchgear housing is assembled from aluminum-zinc plate or ordinary steel plate sprayed with plastic. It is mainly composed of busbar room, main switch, cable room, operating mechanism, interlocking mechanism, and low-voltage control room.

2. Busbar room 
The busbar room is located in the upper part of the switch cabinet. In the system, the main busbar runs through the busbar room and is connected in the busbar room. The main busbar is arranged horizontally and can be easily expanded.  
3. Main switch room 
a) Load switch room: The switch room uses a three-station load switch. Its shell is cast with epoxy resin. It uses SF6 gas insulation and arc extinguishing. It has a "closing"; An SF6 gas pressure gauge is installed at an obvious location for monitoring during operation.  
b) Circuit breaker room: The circuit breaker room is located in the middle of the cabinet and can be equipped with special vacuum circuit breakers or SF6 circuit breakers according to user needs. The ring network cabinet solution with circuit breaker is mainly used for the main power supply and backup power supply in the ring network power supply system and the intermediate section cabinet of the dual power supply system.  
4. Cable room 
The cable room is mainly used for cable connection. Single-core or three-core cables can be connected using the simplest unshielded cable heads. At the same time, the ample cable room space can also accommodate components such as current transformers, lightning arresters, and lower grounding switches. Designed according to standard, the cabinet door is also designed with observation window and safety interlocking device. The bottom plate and front door frame of the cable room can be removed to facilitate cable installation. The floor of the cable compartment is equipped with a rubber sealing cover and cable clamps.  
5. Operating mechanism, interlocking mechanism and low-pressure control room 
The low-pressure room with interlocking also functions as a control panel. The low-voltage room is equipped with a spring operating mechanism with a position indicator and a mechanical interlocking device. It can also be equipped with auxiliary contacts, trip coils, emergency trip mechanisms, capacitive live indicators, key locks and electric operating devices. At the same time, the low-voltage room space can also be equipped with control circuits, measuring instruments and protective relays. The 750mm wide cabinet is equipped with two identical low-voltage rooms, which can accommodate more accessories.  
The entire HXGN switch cabinet can be divided into upper and lower units. The upper unit of the cabinet includes the busbar room, load switch, operating mechanism and low-voltage room. It can be assembled into a complete cabinet with the cable room of the lower unit, or can be separated. The equipment installed in the upper unit can be safely and conveniently inspected and modified, and the entire upper unit can be replaced.

Normal usage environmental conditions

1. Ambient air temperature: - 15℃～+40℃; Altitude: no more than 1000m;
2.   Relative humidity: the daily average relative humidity is no more than 95%, and the daily average water vapor pressure is no more than 2.2kPa;
3.  The monthly average relative humidity is no more than 90%, and the daily average water vapor pressure is no more than 1.8kPa;
4.  Seismic intensity: no more than 8 degrees; Places without corrosiveness, severe vibration and impact, or explosion hazards;
5. Note: When the above normal use conditions are exceeded, the user can negotiate with the company to resolve the problem.

Technical parameters