H(L)8-12 630/20 SF6 fully insulated metal-enclosed compact switchgear
Standard specification
H(L)8-12 series SF6 fully insulated and fully enclosed compact ring network cabinet (hereinafter referred to as inflatable cabinet) is suitable for three-phase AC 50Hz, rated voltage 12Kv. In the distribution system, it can be used to separate the load current, overload current, and close short circuit. It can also break the no-load transformer, a certain distance overhead line, and cable line.
Capacitive loads such as capacitor banks provide the distribution, control, and protection of electrical energy in the
power system.h(l)8-12 adopts a fully sealed structure, all with one belt
The electric body is sealed in a gas chamber welded by a stainless steel plate, and the protection grade is ip67.
Adaptable to humid and salty weather, such as floods, heavy pollution, and other harsh environmental conditions,
A safe and reliable multi-loop ring network switchgear.Widely used in industrial parks, streets, airports, residential quarters, prosperous commercial centers, etc.
The ideal equipment for mobilization.Also used in: compact box-type substations, cable branch boxes, opening and closing, wind power stations, subways and tunnels.
There are multiple modules in H(L)8-12, which can be combined according to user requirements. Various combinations are available to adapt to most occasions requiring ring network units.
Up to 6 modules can be configured in one sf6 chamber.When there are more than 6 modules, the extension bus can be used to connect the cabinets.
H(L)8-12 The available modules are:
C—load switch module
De — cable connection module with grounding knife
D—cable connection module without grounding knife
f—Load switch fuse combination electric module
V—vacuum breaker module
Sl—busbar sectional switch module (load switch)
Sv—busbar segmentation switch module (vacuum switch)
Sv is always with the bus lift module
Be—busbar grounding module
M-meter module
Product structure characteristics
1. Fully sealed and fully insulated design: H(L)8-12 All live parts are sealed in a box made of 304 stainless steel plate. The working pressure is filled in the box.
2. 4 bar of SF6 gas with IP67 protection.It can be installed in areas with high humidity and dust pollution, especially suitable for mines, box-type substations and any air A place where contamination is likely to cause surface flashover.The product is fitted with a din47636-compliant bushing that is connected to the cable via a fully insulated, fully sealed, shielded cable gland.
3. High reliability and personal safety: all live parts are sealed in the SF6 air chamber; the air chamber has a reliable pressure relief channel, passed the internal fault arcing test of 20kA/0.5s;
The load switch and grounding switch are three-position switches that simplify interlocking with each other.There is a reliable mechanical interlock between the cable compartment cover and the load switch to prevent accidental entry into the charging interval.maintenance-free and long life cycle: the product design life cycle is 30 years, the main switch does not need maintenance during the product life cycle.The annual air leak rate of the product is ≤ 0.1%.
4. Compact structure: all modules except the air-insulated metering cabinet and PT cabinet are only 325mm wide.The cable joints of all units are of the same height to the ground, which facilitates on-site construction.
5. H(L)8-12Configurable intelligent control unit (optional) provides effective protection, remote control and monitoring systems, and supports automation of the power distribution system.
6. H(L)8-12 provides two protection modes for the transformer: load switch fuse combination and circuit breaker with relay protection.Load switch fuse combination for
Transformers with 1600kVA and below, and circuit breakers with relays can be used for transformer protection of various capacities.
7. Environmental protection: The development of H(L)8-12 is not only from the product itself, but also from the production process to the environmental protection of the switch for lifelong operation. All materials are selected to be environmentally friendly materials. With a zero-leakage cleaning process, the product is sealed for life, and 90% - 95% of the material is recyclable after the end of the product life cycle.
Use of environmental conditions
1. The ambient temperature: -40 ° C ~ +40 ° C (less than -30 ° C by the user and the manufacturer to negotiate)
2. Altitude: ≤ 2500 meters (more than 2500 meters is negotiated by the user and the manufacturer)
3. Maximum average relative humidity: 24-hour average ≤ 95%, monthly average ≤ 90%.
4. Earthquake intensity: no more than 8 degrees.
5. Locations without fire, explosion, chemical corrosion and frequent severe vibrations.
Single-spacer dimensions: 325* deep 751* high 1336
