VTZ-12 indoor phase-controlled high-voltage vacuum circuit breaker (Tongzhong Electric's special model) is an indoor switchgear for rated voltage 12kV, AC 50/60Hz. It adopts a permanent magnet operating mechanism and is suitable for special occasions in various industrial and mining enterprises and power grid equipment. The trolley unit can be directly used with the KYN28A-12 switchgear, directly replacing the ordinary three-phase integrated vacuum circuit breaker in the existing switchgear.
Products details
1.Rated Voltage:12kV
2.Rated Frequency:50/60Hz
3.Rated current:630/1250A
4.Rated short-circuit breaking current:25/31.5 kA
5.Rated-short-circuit making current (peak):63/80 kA
6.Mechanical endurance:10000 times
VTZ-12 indoor phase-controlled high-voltage vacuum circuit breaker has many advantages:
1.Performance of circuit breaker：E2-C2-M2;
2.Simple and reliable structure:Permanent magnet mechanism, three-phase independent design, independent control of phases A, B, and C;
3.HIGH CONDUCTIVITY :A rational conductive circuit design meets the temperature rise requirement of 1.1 times the rated current;
4.High conductivity:Reasonable conductive circuit design meets the temperature rise level of 1.1 times the rated current;
5.High adaptability:This product is identical in size to conventional KYN28-12 series cabinet switches, eliminating the need for special cabinet design and making it suitable for a variety of power conversion environments.
contact us
Shaanxi West Power Tongzhong Electrical Co., Ltd. is focused on in vacuum circuit breakers for 20 years.
Shaanxi West Power Tongzhong Electrical Co., Ltd.
Contact: Ms.Grace Liu (Director of Sales Department)
Mobile: +86 18091765882(WhatsApp/Wechat/facebook )
Website:https://www.xdtzelectrical.com
Email:xdtz04@westpowerelectric.com
