ZW32-12 Outdoor High Voltage Vacuum Circuit Breaker
Short Description:
OverviewZW32-12 series outdor high-voltage vacum circuit breakers (hereinafter rferred to as circuit breakers) are oudoor distribution switchgear with rated voltage of 12kV and three -phase AC of 50Hz. Circit breaker is mainly used for openin and closin Load crrent overload crrenr and sor-circit cur …
Product details
Overview
ZW32-12 series outdor high-voltage vacum circuit breakers (hereinafter rferred to as "circuit breakers") are oudoor distribution switchgear with rated voltage of 12kV and three -phase AC of 50Hz. Circit breaker is mainly used for openin and closin Load crrent overload crrenr and sor-circit curent in power lines have overlad and sort-circuit protection functins, meet the requrements of control and measurement, and can also realize remote control and monitoring functions, which are widely used in It is used for control and operation in dstributin systems of substation and indusrial and mining enterprises. and is specialll suitable for places requiring frequent operation.
Circuit breakers meet technical standards such as GB1984-2003, DL/T 402-2007 and IEC60056.
Service condition
1. Altitude:≤2000m;
2.Ambient temperature:-40°C~+45°C
3. Wind speed: 34m/s
4. Earthquake intensity: <8 degree
5. Ambient pollution: IV
6. Ice thickness: 10mm
7.Applicable occasions should be free from inflammables,explosives,corrosives and severe vibrations.
Product technical parameter
| Name | Unit | Data | ||
| 12kV | ||||
| Rated voltage | KV | 12 | ||
| Rated current | A | 630,1250 | ||
| Rated insulating level | 1min.PF withstand voltage | dry | KV | 42(across open contacts:48) |
| wet | 34 | |||
| Lightning impulse withstand voltage(peak) | kv | 75(across open contacts:85) | ||
| Rated short-circuit breaking current | KA | 20,25 | ||
| Rated short-circuit making current (peak) | KA | 50,63 | ||
| Rated peak withstand current | KA | 50,63 | ||
| 4s rated short-time withstand current | KA | 20,25 | ||
| Rated operating sequence | O-0.3s-CO-180s-CO | |||
| Breaking times of rated short-circuit breaking current | times | 30 | ||
| Mechanical duration | times | 10000 | ||
| Rated voltage of energy storage motor | V | DCor AC220,DC110, 48, 24 | ||
| Rated operation voltage | V | DC or AC220,DC110, 48,24 | ||
| Abrasions thickness of contacts | mm | 3 | ||
| Rated current of over-current release | A | 5 | ||
| Current transformer ratio | 200/5, 400/5, 600/5 (Protection degree:Ⅲclass, Class: 0.5) | |||
