中国创造 星玛智造
What are the technical characteristics of the SMS-PVl (ZW32-12) type high voltage vacuum circuit breaker?
time:2018-11-01
The company's SMS-PVl outdoor high voltage vacuum circuit breaker. It has three-phase longitudinal magnetic field vacuum arc-extinguishing, epoxy-sealed insulated pole, and manual (or electric) spring operating mechanism structure, enabling local manual (or electric) operation and three-stage overcurrent protection. The products are widely used in urban power grids as break or tie switches, or as outdoor switchboards for agricultural power distribution systems as outlet switches, which can effectively divide and combine load current and short circuit current.


Has the following notable features:
1. Reasonable sealing structure, so that the product can reach Class IV pollution level, suitable for areas with poor external conditions.
2, supporting advanced small electric spring operating mechanism, making it low operating power, high reliability and light weight.
The operating mechanism is placed in a sealed mechanism box, which solves the problem of corrosion of the mechanism and improves the reliability of the mechanism.
3. In addition to the local operation of the circuit breaker, the automatic remote interface is reserved, and the intelligent remote terminal is provided to meet the requirements of the distribution automation system. It can also be combined with the recloser control to form a recloser. The high-grade, fully sealed gold-plated aviation plug design makes the automation interface highly reliable.
4. There are obvious “minute” and “closed” position indications on the switch housing, and “storage energy” indication, indicating clear and reliable position. The housing has a dedicated ground wire mounting location, mounting bolts and grounding markings. The switch has manual "close" and "divided" handles, which can be manually divided and closed. At the same time, the switch is also equipped with a “storage” handle for manual energy storage. The switch has built-in three-phase CT, and the ratio of 600/5A, 400/5A, and 200/5A can be adjusted according to the actual load current, which is more flexible to use.
5. The circuit breaker has the function of overcurrent trip and escape current, and the rated current of the overcurrent release is 5A. The composite controller of the switch configuration can reliably avoid the inrush current generated when the line is closed, thus avoiding the accidental tripping of the circuit breaker during the closing process.

6. High reliability: Based on years of power system manufacturing system, using advanced manufacturing equipment, comprehensive testing methods, and perfect quality management system, the products produced have high quality and high reliability. This switch has passed the type test of the national authority. For details, please refer to the report attached to the type test section of this tender.