FZW32 Outdoor Vacuum Load-break Switch
FZW32Outdoor Vacuum Load-break Switch
The FZW32 outdoor vacuum load-break switch is anew type load-break switch which comprises insulating knife, vacuum arc quenching room andoperating mechanism. The vacuum arc quenchingroom features excellent and reliable quenching ability, long servicelife, small size, low explosion risk and environmentally friendly performance.
Feature
This outdoor vacuumload-break switch is suitable for outdoor three phase AC power distributionsystem (rated voltage: ≤ 12kV, rated current: 630A, rated frequency: 50Hz). Itcan break or connect the distribution line on-load, and break and connectno-load circuit or transformer. At the open position, this switch is up to therequirements for insulating distance across open contact, according torelated outdoor high voltage insulated switch standards.
Thus far, the FZW32 outdoor vacuum load-break switch has been used in the power transmission anddistribution system in various industries such as electric power, mining,metallurgy, chemical engineering and agriculture, as well as places wherefrequent operations are needed.
Model name and its meaning
：
FZ W 32- 12- T 630-20
(kA) Rated short-circuit breakingcurrent (kA)
(A) Rated current (A)
Springoperating mechanism
(kV) Rated voltage (kV)
Design code
Outdoor type
Vacuum load switch
| Table 1 The main parameters of the circuit breaker | |||
| NO. | Item | Unit | Parameter |
| 1 | Rated voltage | kV | 12 |
| 2 | Rated frequency | Hz | 50 |
| 3 | Rated current | A | 630 |
| 4 | Rated active load breaking current | A | 630 |
| 5 | Rated close-loop breaking current | A | 630 |
| 6 | 5% rated active load breaking current | A | 31.5 |
| 7 | Rated cable charging breaking current | A | 20 |
| 8 | Power frequency withstand voltage (1min): vacuum open contacts, phase to phase / phase to earth, disconnector open contacts) | kV | 35/42/48 |
| 9 | Rated short time short circuit withstand current | kA | 20 |
| 10 | Rated short circuit duration | S | 4 |
| 11 | Rated peak withstand current | kA | 50 |
| 12 | Rated short circuit making current | kA | 50 |
| 13 | Mechanism endurance | Time | 10000 |
| 14 | Vacuum arc quenching chamber contact abrasion allowance | mm | 1 |
| 15 | Manual operating torque | Nm | ≤200 |
FZW32.JPG
