ZW32-24kV outdoor vacuum auto recloser is a three-phase AC high-voltage switchgear operating at 50/60Hz, mainly applied in 10–35kV outdoor power distribution systems for load current breaking, overload and short-circuit protection. It adopts vacuum arc extinguishing and integrates solid insulation technology, combining the interrupter, voltage sensor, and current sensor within the pole structure.
Designed for distribution automation, this intelligent recloser can detect transient and permanent faults, automatically isolate fault sections, and restore power in healthy zones. It supports local and remote control and communication with SCADA systems via protocols such as IEC 61850, making it ideal for modern smart grid environments.
| No. | Items | Unit | ZW32-27 |
| 1 | Rated voltage | kV | 22 |
| 2 | Maximum operating voltage (Nominal) | kV | 27 |
| 3 | Rated current | A | 630/800A |
| 4 | Rated frequency | Hz | 50/60 |
| 5 | Rated short-circuit making | kA | 12.5/16 |
| 6 | Rated short-circuit breaking current | kA | 12.5/16 |
| 7 | Rated short-time withstand | kA | 12(16)/3s |
| 8 | Rated peak withstand current | kA | 32.5/42 |
| 9 | Rated operating sequence | 0-0.3s-C0-180s-C0 | |
| 10 | Rated power-frequency withstand voltage (Dry/Wet) | kV | 60/1min |
| 11 | Auxiliary and control circuit | kV | 2/1min |
| 12 | Rated lightning impulse withstand voltage | kV | 125 |
| 13 | Switch operations of rated short-circuit breaking current |
bout | E2 |
| 14 | Number of mechanical operations | bout | 10000 |
| 15 | Resistance of main circuit | μΩ | ≤200 |
| 16 | Protection class: tank | IP65 | |
| 17 | Insulating medium | Vacuum/Air | |
| 18 | Standards | GB1984, GB3804, GB3906, IEC62271-100/105/200, IEC60265-1. |
|
| Rated voltage | DC (V) | 24 | ||
| AC (V) | 220 | |||
| Rated frequency | Hz | 50/60 | ||
| Setting value | Short circuit fault | Setting range of phase current |
A | 20-1260 |
| Ground fault | Setting range of zero sequence curren |
A | 0.1-20 | |
| Setting range of zero sequence voltage |
% | 1-100 | ||
| Settingrange of over voltage protection | % | 110-185 | ||
| Settingrange of under voltage protection | % | 25-90 | ||
| Weight | kg | 25 | ||
Three-phase solid insulated pole structure ensures safe and compact integration of primary components.
Fully enclosed design enhances moisture-proof and anti-condensation performance, suitable for cold and humid regions.
Current transformer (600:1 or 800:1) and capacitive voltage sensors (3.25V/√3) embedded for protection and measurement.
Permanent magnetic actuator offers long life and stable operation; spring mechanism provides backup.
Supports local manual or electric operation, and full remote control via intelligent controller.
IP65-rated housing made of outdoor epoxy resin and silicone, anti-UV and anti-aging.
Modular intelligent controller supports Linux OS, remote upgrades, fault diagnostics, and redundancy design.
Suitable for distribution networks in urban, rural, mountainous, coastal, and industrial areas, especially where reliability and automation are critical.
Widely used in feeder automation, sectionalizing, and user boundary switching, reducing outage duration and operation costs.
Operating temperature: -40℃ to +60℃
Altitude: ≤ 2,000m
Pollution level: Level III
Wind speed: ≤ 34m/s
Custom solutions available upon request for specific operating environments or system configurations.
The parameters listed above are standard references. If these styles do not fulfill your specific requirements, feel free to reach out to us for a bespoke design. With strong capabilities in personalized development and production, we offer tailored solutions to clients worldwide.
