TCFS-12 series compact stationary solid insulated switchgear enviromentally air insulated fixed switchgear (hereinafter referred to as “switchgear”) is a new generation of extensible, modularized and free-maintenance metal enclosed switchgear, which is widely used in 3-12kV and 50Hz electric system.
lts switches are including:
TLS load switch
TLS-T load switch+ fuse combination unit
TVC breaker
TLG isolated earthing switch
1. Miniaturization:
The width of load switchgear and breaker cabinetis only 400mm;
2. Stationary type:
The body is made up of two units with fixed setting method;
3. Solid insulation:
The embedded vacuum arc- extinguishing chamber can reduce parts, environmental and stable;
4. Switchgear:.
Load switchgear: 630A/25kA and 1250A/25kA,
Breaker cabinet: 630A/25kA and 1250A/31 .5kA,
5. Scheme for whole series:
Load switch + fuse-combination unit cabinet:
200A/31. .5kA Up isolation and up earthing;
Up isolation and down earthing;
Down isolation and down earthing;
Up in and up out.
Meet users’ needs for various loads.
It conforms to the following standards and regulations:
GB311.1 Insulation coordination Part 1 Definition, principle and rules
GB3804 3.6kV~40.5kV high voltage AC load switch
GB1984 High voltage AC breaker
GB3906 3.6kV~40.5kV AC metal enclosed switch and control equipment
GB/T11022 Common technical requirements for high voltage switch and control equipment
GB/16296 High voltage AC load switch Fuse-combination unit
DL/T403 Specification for ordering 12kV~40.5kV high voltage vacuum breaker
DL/T593 Common technical requirements for high voltage switch and control equipment
DLT404 Standards for 3.6kV~40.5kV AC metal enclosed switch and control equipment
Item | Data | ||
Vacuum circuit breaker -Three-station isolation switch combination |
Vacuum load break switch -Three-station isolation switch combination |
||
Rated voltage | 12kV | 12kV | |
1min power frequency withstand voltage | interphase and relative | 42kV | 42kV |
isolation fracture | 48kV | 48kV | |
Lightning impulse withstand voltage | interphase and relative | 75kV | 75kV |
isolation fracture | 85kV | 85kV | |
Rated frequency | 50Hz | 50Hz | |
Rated current | 630,1250A | load break switch 630A | |
Rated short-circuit breaking current | 20,25,31.5kA | – | |
Rated short-time withstand current | 20,25,31.5kA | 25kA | |
Rated short circuit closing current (peak) | 50,63,80kA | 63kA | |
Rated peak withstand current | 50,63,80kA | 63kA | |
Rated out-of-phase ground fault breaking current | 17.3,21.7,27.4kA | – | |
Rated short circuit duration (main circuit) | 4s | 4s | |
Rated transfer current | – | 3150A | |
Rated active load breaking current | – | 630A | |
Rated load breaking operation times | – | 30 times | |
Rated cable charging current | – | 10times | |
Rated operation sequence | O-0.3s-CO-180s-CO | O-0.3s-CO-180s-CO | |
Mechanical life | 10000 times | load break switch: 10000 times | |
Isolation switch: 5000 times |