ZW10-12FGG/630A Dual Power Automatic Transfer High Voltage Vacuum Circuit Breaker
Contact Info
- Add:Xiangyang Industrial Zone, Liushi Town, Yueqing City, Zip:
- Contact: 李经理
- Tel:15167417505
- Email:864640886@qq.com
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The ZW10-12 series outdoor high-voltage dual-power vacuum circuit breaker is a three-phase AC 50Hz outdoor high-voltage switchgear used in distribution systems with a rated voltage of 12kV. Its main function is to realize automatic switching in dual-power supply systems. When one power supply experiences a power outage or undervoltage, it can automatically switch to another normal power supply, thereby reliably ensuring the continuity of power supply for important loads.
I. Product Overview and Composition
This series of products usually consists of two parts: a high-voltage vacuum circuit breaker and an intelligent dual-power switching controller. Some models may also include double-side disconnectors. Its operating mechanism is mainly a CT23 spring energy-storage mechanism, which has two operation modes: electric and manual.
II. Main Features
High-reliability power supply: Its core function is to realize automatic switching between two power supplies, which is especially suitable for important places that do not allow power outages, such as coal mines, oil fields, mines, metallurgy, chemical industry, railways, and urban and rural power distribution systems.
Safety interlocking: It has perfect mechanical and electrical interlocking functions, ensuring complete isolation of the two high-voltage power supplies, and effectively avoiding misoperation and re-powering impact during load faults.
Easy maintenance: It adopts vacuum arc-extinguishing technology, realizing oil-free and air composite insulation. The product has the characteristics of no oil filling, no gas filling, small size, light weight, and no need for maintenance.
Intelligent control: Equipped with an intelligent controller, it can realize functions such as delayed closing upon power restoration, priority power supply setting, overcurrent and instantaneous overcurrent protection, one-time reclosing and locking.
III. Main Technical Parameters
Rated voltage: 12 kV.
Rated current: Common specifications include 630A, 1250A, etc.
Rated short-circuit breaking current: Common values are 20kA, 25kA.
Mechanical life: Usually up to 10,000 operations.
Operating conditions:
Ambient air temperature: -25℃ ~ +40℃.
Altitude: Not more than 2000 meters.
Wind speed: Not more than 34m/s.
IV. Example of Model Meaning
Take ZW10-12G/630-20 as an example:
Z: Vacuum circuit breaker.
W: For outdoor installation and use.
10: Design serial number.
12: Rated voltage 12kV.
G: Usually stands for "isolation" or a specific design (the meaning may vary slightly among different manufacturers).
630: Rated current 630A.
20: Rated short-circuit breaking current 20kA.
V. Main Functions
Automatic switching: It monitors the voltage of the two power supplies in real time, automatically switches to the standby power supply when the main power supply fails, and can switch back to the main power supply automatically or manually according to the setting after the main power supply is restored.
Protection function: It has fixed-time limit overcurrent protection and instantaneous overcurrent protection functions, providing protection for faults on the load side.
Operation flexibility: It supports switching between automatic mode and manual maintenance mode.
This series of products is one of the preferred equipments to replace traditional oil-insulated circuit breakers and realize oil-free and automation of distribution systems, with the characteristics of small floor area, low investment, convenient commissioning and maintenance, etc.
| Industry Category | Electrical Equipment & Supplies/High Voltage Electrical/High Voltage Circuit Breakers |
|---|---|
| Product Category | |
| Brand: | 乐清市恒昭电气有限公司 |
| Spec: | ZW10-12FGG/630A |
| Stock: | 10 |
| Manufacturer: | 乐清市恒昭电气有限公司 |
| Origin: | 113303 |
