1. 33KV Vacuum Circuit Breaker 2. Outdoor, vacuum type 3. IEC Standard 4. ISO Certificated 5. Type Test Report
33KV Vacuum Circuit Breaker
1. Type: Outdoor, vacuum Type
2. Mode: ZW30-40.5
3. General Description
ZW30-40.5 Outdoor HV Vacuum Circuit Breaker is of three phase which is available in power T&D system. It could be used in industrial enterprises and mines, power plant and susbtation for protection and controlling, as well as inter-connection circuit breaker. It is also available in places for frequent operations.
4. Service Ambient Environment
Altitude: no more than 3000m
Ambient temperature:-40deg.c -- +40deg.c
Pollution Grade: IV altitude lower than 1000m
II altitude lower than 3000m, but higher than 1000m
Wind speed: no more than 34m/s
Other Speical service condition could be settled by the user and manufacturer
5. Main Technical Specifications
No. | Name | Unit | Parameter |
1 | Rated voltage | kV | 40.5 |
2 | Rated insulation | Rated 1min power | Dry test (break point,phase-t phase,phase-to-earth) | kV | 95* | |
level | frequency withstand voltage | Wet test (phase to earth, external insulation ) | kV | 80* | ||
Lightning impulse withstand voltage (peak) | kV | 185* | ||||
3 | Rated current | A | 2000 | |||
4 | Rated short-circuit breaking current | kA | 31.5 | |||
5 | Rated short-circuit making current | 80 | ||||
6 | Rated operation sequence | 0-0.3S-Co**-180S-Co** | ||||
7 | Rated out-of-phase breaking current | kA | 80 | |||
8 | Rated single capacitor bank breaking current | kA | 8 | |||
9 | Rated duration of short circuit | S | 4 | |||
10 | Rated short-citcuit breaking current break times | times | 20 | |||
11 | Arcing time | ms | ≤20 | |||
12 | Full breaking time | ms | ≤85 | |||
13 | Mechanical life (CO) | times | 10000 | |||
14 | Rated gas inflating pressure | Adopt TD-40.5W/2000-31.5(K) Vacuum arc extinguish room, filled with SF6 gas | MPa | 0.02 (20°C) | ||
Adopt TD-40.5W/2000-31.5(K) Vacuum arc extinguish room, filled with dry air and high pure nitrogen | ||||||
15 | Annual gas leakage rate | % | ≤1 | |||
16 | Vacuum arc extinguish room vacuum degree | New ex-work vacuum arc extinguish room | Pa | ≤1.33X10-3 | ||
20 years of storage | <6.6 X10-2 | |||||
6. Outline Drawing
33KV Vacuum Circuit Breaker
