Zn85 vacuum circuit breaker

Custom processing: Yes

Brand: Shaanxi open higher

Model: ZN85B-40.5 / 1250-31.5 solid letters column vacuum circuit breakers

Number of poles: 3P

Rated frequency: 50 (Hz)

Rated insulation voltage: 95000 (V)

Interrupter ways: vacuum circuit breaker

Mechanical life: 30000 (10 000)

Certification: The West High

ZN85B-40.5 solid inner sealing indoor high voltage vacuum circuit breaker

1. Overview within ZN85B-40.5 type indoor AC high voltage vacuum circuit breaker (hereinafter referred to as "circuit breakers") 50Hz.35kV for AC power system, for industrial and mining enterprises, power plants and substations, etc., as with the protection and control equipment, and for frequent operation of the occasion. This product performance in line with the national standard GB1984 "AC high voltage circuit breakers" and JB3855 "within 3.6-40.5KV indoor AC high voltage vacuum circuit breakers" and other standards. Mainly applied to an altitude of 3,000 meters above the plateau region 5000 m or less. KYN61-40.5 installed in the cabinet.

2. ZN85B-40.5 in the solid sealing indoor high voltage vacuum circuit breaker conditions of use

2.1 ambient air temperature: not exceeding 40 ℃; daily average temperature does not exceed 35 ℃; minimum ambient air temperature of -25 ℃. 2.2 Relative humidity: daily average of not more than 95%, on average less than 90%; water vapor pressure on average less than 2.2kPa; on average less than 1.8kPa; 2.3 Altitude: not exceed 1000m; 2.4 surround not significantly polluted by dust, smoke, corrosive and / or flammable gases, vapors or salt contamination; 2.5 external vibration or earth from the switching and control equipment is negligible; 2.6 in the secondary electromagnetic induction system the magnitude of interference does not exceed 1.6kV.

3.ZN85B-40.5 in the solid sealing indoor high voltage vacuum circuit breaker structure and working principle

Reliable modular spring mechanism within ZN □ -40.5 series indoor high voltage vacuum circuit breaker spring operating mechanism of the vertical arrangement of the spring mechanism, with manual storage and electric energy storage function, small overall dimensions, the overall stiffness of the circuit breaker is good, consistent operating performance. Transmission reliability have tens of thousands of production, operating experience, the stability of the whole operation of the circuit breaker, and high reliability. Leading electrical circuit using telescopic structure ZN85B-40.5 in the form of solid sealing indoor high voltage vacuum circuit breaker leading electrical circuit to form a sleeve-type structure. A leading electrical circuit breaker vacuum interrupter is arranged in a closed insulating tube, insulation tube use reliable electrical and mechanical properties of epoxy materials, and the use of advanced APG molding process, as both the insulating cylinder mounting support role, and from white, relatively insulation. The design of the insulation barrel full account of the requirements of national standards and harsh working conditions, not only can prevent the effects of the vacuum chamber off from the external environment, to prevent dust and foreign matter into the main part of the circuit, and can ensure that even in humid and heavy pollution under the circumstances, it can also exhibit high impedance voltage effect. Standard sub-gate function module modular design spring mechanism within ZN □ another feature indoor vacuum breaker, the spring operating mechanism includes closing and opening of two modules, it has easy maintenance, quick replacement, power plug repair time is short features, in addition, be used as spare parts due to the sub-gate modules have already been dedicated grease lubricated and adjusted and has a long shelf life, so that after closing the module can be replaced without opening the entire circuit breaker actuator readjustment mechanism, without changing the dynamic characteristics of breaking, so as to reduce the maintenance and overhaul line to a minimum. Faulty sub-gate module is factory repair and maintenance after re can also be used as spare parts.

ZN85B-40.5 solid consistent high voltage vacuum circuit breaker handcart dimensions and ZN85-40.5 handcart type vacuum circuit breakers sealing indoor, enabling easy interchange between handcart, so strong adaptability, scope wide. ZN85B-40.5 solid inner sealing indoor high voltage vacuum circuit breaker with floor structure design, do not transport the car, users can easily conduct on-site maintenance and periodic maintenance within ZN85B-40.5 solid sealing indoor high voltage vacuum circuit breaker cabinet type is adapted KYN61 -40.5 High Voltage switchgear.

Leading electrical circuit using telescopic or solid sealing structure ZN85B-40.5 solid inner sealing indoor high voltage vacuum circuit breaker leading electrical circuit has a solid sealing sleeve and two structural forms for the convenience of users according to different places selected. Sleeve-type structure: a leading electrical circuit breaker vacuum interrupter circuit are arranged in a closed insulating tube, insulation tube use reliable electrical and mechanical properties of epoxy materials, and the use of advanced APG molding process, both from the insulating tube installation supporting role, was underway and white, relative insulation. The design of the insulation barrel full account of the requirements of national standards and harsh working conditions, not only can prevent the effects of the vacuum chamber off from the external environment, to prevent dust and foreign matter into the main part of the circuit, and can ensure that even in humid and heavy pollution under the circumstances, it can also exhibit high impedance voltage effect.

Other ZN85B-40.5 solid inner sealing indoor high voltage vacuum circuit breaker using a conductive solid insulation technology embedded pole, the solid seal pole through advanced automatic pressure APG process condensate vacuum interrupter and a conductive circuit parts directly enclosed in a special epoxy resin material, the formation of a leading electrical circuit module. Embedded pole was installed inside and outside the double-side skirt design, the pole has a large creepage distance, high mechanical strength, high precision parts, small number of parts, no secondary adjustment, less overlap surface features . Pole electric field distribution, the local electric field concentration to avoid damage to the organic insulating. While using this design can greatly barrel of a leading electrical circuit assembly process, and completely avoid the leading electrical circuit connecting bolts due to the operation of the vibration loosening problems and ensure a leading electrical circuit electrically coupled with high reliability, so that a leading electrical circuit breaker of the maintenance-free as possible.

Within the flexible installation ZN85B-40.5 solid sealing indoor high voltage vacuum circuit breaker having fixed and handcart two installation methods, can very easily achieve reliable mechanical "five anti-interlock." Either directly installed in various types of fixed switch cabinet. It can also be fitted on all types of removable switchgear handcart.