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FTG-12 solid insulated switchgear mainly has three functional units, namely D unit (breaker unit), I unit (Load switch unit), R unit (combined electrical unit).
Each unit is structurally divided into three parts: an instrument room, an operating mechanism, and a primary circuit.
Instrument room with microcomputer protection (intelligent controller) and other meters;
The operating mechanism is a special bomb operating mechanism, or with electric operating mechanism.
The primary circuit adopts the APG automatic gel process to connect the busbar, the isolating switch and the extinguishing arc chamber is completely sealed in epoxy resin and has a special connector and busbar connection.
Application places:
Widely used in industrial-grade civil ring and terminal power supply. Especially suitable for small secondary power stations, opening and closing stations, industrial and mining enterprises, airports, railways, commercial areas, high-rise buildings, highways, subways, tunnels, etc.
1. Altitude ≤4000meters
2.Adapt to temperature: -45°C-+45℃
3. The highest daily average temperature: +45 ° C, the highest annual average temperature: +45 ° C
4.Wind speed: ≤34m/s
5.relative humidity≤95%(25°C)
6.Ground slope≤ 5°
7.seismic intensity≤ 8°
8.the installation site has no fire, no explosion hazard, no chemical corrosion and no severe vibration
GB/t11022-1999<Common technical requirements for high voltage switchgear and control equipment standards>
GB/3906-2006 <3.6KV-40.5KV AC metal-enclosed switchgear and control equipment>
GB/19842003 <High Voltage AC Circuit Breaker>
GB3804-2004 <3.6KV-40.5KV high voltage AC load switch>
GB16926-2009 <High-voltage AC load switch-fuse combination electric appliance>
GB/1985-2004 <High Voltage AC Isolation Switch Grounding Switch>
EC 60265-1-1998 <High-voltage switch. Part 1: High-voltage switch with rated voltages from 1KV or more to 52KV or less>
The standard configuration:
1.630A busbar jumper
2. Vacuum circuit breaker, isolation / earthing switch and operating handle
3. Three separate circuit breakers and isolation/earthing switch operating axes
4. Circuit breaker and isolation/grounding switch have position indication respectively
5. Self-powered microcomputer protection or conventional microcomputer protection
6. Casing current transformer and ammeter
7. Trip coil AC/DC 110V/220V
8. The inlet bushing is placed vertically at the rear upper end, using 630A European casing
9. The outlet sleeve is horizontally arranged at the front lower end, using 630A European casing
10. Each operating hole is equipped with a padlock
11. Ground busbar
12. Meet the five defense lock
Optional configuration, accessories:
1. Reserved bus extension
2. Short circuit and ground fault indication
3. European cable head, rear arrester
4. Jumper
5. Auxiliary contacts
     Load switch 2NO+2NC
     Grounding switch 2NO+2NC
6. The secondary device can be installed in the control box at the top of the switchgear