The ZN105-12/T6300-80 vacuum circuit breaker for generator was developed by our company in 2003 based on the German Siemens's 3AF technology. It is a large-capacity product with large rated current (6,300A) and high breaking capacity (80kA).
1. The technical performance of this indoor AC high-voltage switching equipment reaches the international advanced level. Its rated voltage and frequency are 12kV and 50Hz respectively.
2. Equipped with the arc-extinguishing chamber from domestic 777 Factory, our vacuum circuit breaker is suitable for generator outlet protection.
3. The integrated design of operating mechanism and switch is adopted. The spring energy storage type operating mechanism can be operated by AC, DC, or hand.
4. With outstanding insulation performance, this large capacity circuit breaker can be used in indoor areas with the filthy condition of Grade II.
5. Reasonably designed, this vacuum circuit breaker has many advantages, such as strong breaking ability, complete operating functions, long mechanical life, no risk of explosion, etc. It is suitable to be used as the control and protection switch in power plants, large substations, as well as high-load industrial and mining enterprises.
Conditions of Use Environment
1. Altitude: ≤ 2,000m
2. Ambient Temperature: -25℃~+40℃
3. Relative Humidity: Daily average ≤ 95%, monthly average ≤ 90%
|Rated Short-circuit Breaking Current||kA||80|
|Rated Peak Withstand Current||kA||224|
|Rated Short-time Withstand Current||kA||80|
|Rated Short-circuit Closing Current (Peak)||kA||224|
|Rated Short Circuit Duration||s||3|
|Rated Short-circuit Current Breaking Times||5|
|Rated Operating Sequence||Close open -15min- close open|
|Lightning Impulse Withstand Voltage (Peak)||Phase to phase, phase to ground||kV||75|
|1min Power Frequency Withstand Voltage||Phase to phase, phase to ground||kV||42|
|Rated Power of the Energy Storage Motor||W||550|
|Rated Voltage of the Energy Storage Motor||V||≈ 220|
|Energy Storage Time||s||≤ 15|
|Rated Voltage of the Closing and Tripping Electromagnet||V||220|
|Rated Current of the Closing and Tripping Electromagnet||A||2|
|Rated Current of the Auxiliary Switch||A||AC10 DC5|
|Rated Out-of-step Breaking Current||kA||40|
|Rated Load Opening and Closing Times||times||50|
|DC Component of the Rated Asymmetrical Breaking Current||%||Average: 74
|DC Component of the Rated Out-of-step Asymmetrical Breaking Current||%||50~60|
Our company is a specialized vacuum circuit breaker for generator manufacturer and supplier in China. We offer a variety of products, including air circuit breaker, low voltage distribution switchgear, gas insulated switchgear, etc.