HWR (V)-24/T630-20 vacuum circuit breaker is a 24kV gas cabinet dedicated vacuum circuit breaker, the switch adopts clamp structure, with reliable breaking performance, long service life, maintenance free and easy installation and other advantages.
HWV-24/T630-20 vacuum circuit breaker is mainly used in the common ABB type SF6 fully insulated metal enclosed switchgear or other similar types of SF6 gas-filled cabinets. As a main component of gas-filled cabinets, it undertakes the main functions and has the performance of rated current, load current, closing and breaking short circuit current.
0577-62686971
Model composition
HWR(V)-24/T630-20
Operating conditions
installation site | In the box |
ambient temperature （℃） | -45~+140 |
height （m） | ≤2000 |
air humidity （%） | The daily average is not greater than 95% and the monthly average is not greater than 90% |
seismic intensity | No more than 8 degrees |
Technical parameters of circuit breaker
order number | Main equipment and technical performance | Parameters and requirements |
1 | rated voltage （kV） | 24 |
2 | rated current （A） | 630 |
3 | rated frequency （HZ） | 50/60 |
4 | Power frequency withstand voltage (phase to ground) (kA) | 65/79 |
5 | Lightning impulse (phase to ground) (kV) | 125/145 |
6 | Short-term tolerance current (kA) | 20 |
7 | Rated peak withstand current (kA) | 50 |
8 | Rated short-circuit closing current (peak) | 50 |
9 | Main circuit resistance | 200 |
10 | mechanical life | 5000 |
11 | Ground switch life | ≥3000 |
12 | Life of isolating switch | ≥3000 |
13 | gas pressure | 0..02MPa |
14 | IP grade | Air chamber IP67/ housing IP4X |
15 | arcing （KA/s） | 20 |
Mechanical characteristics of circuit breaker
order number | inspecting item | technical requirement |
1 | Check the main switch of the circuit breaker | Number of arc extinguishing chamber (indicate manufacturer) |
The opening distance is 18-22mm | ||
Exceeding the limit by 3±1mm | ||
Contact pressure ≥3000N | ||
2 | Mechanical properties inspection | The difference between three-phase phase separation is less than 2ms |
The difference between three-phase closing time is less than 2ms | ||
Average speed of commutation 1.4-2.0m/s | ||
Average closing speed 1.0-1.8m/s | ||
3 | Circuit breaker circuit | Loop resistance ≤ 45μΩ |
Service Hotline
No. 333, Weishiqi Road, Yueqing Economic Development Zone, Zhejiang Province
Samples
WeChat Customer