CVE CVM solid seal vacuum contactor and combination appliance
CVE/M-12 vacuum contactor and CVE/M(F) vacuum contactor fuse combination appliance is suitable for three-phase AC power system with rated voltage of 3.6-12KV and rated frequency of 50Hz. It can be assembled to form a F-C circuit for power plants and industrial and mining enterprises to close and open AC high-voltage motors, transformers, induction furnaces and other loads, and has overload and short-circuit protection functions.
The product is designed with the principles of vacuum arc extinguishing and air insulation. Epoxy resin solid seal insulation (APG) technology is adopted. The overall dimensions of the product are the same as those of VD4 circuit breaker of ABB Company, and can be arranged in 650mm wide central switch cabinet. The product has the characteristics of long service life, frequent operation, stable operation, small footprint, etc. Product technology has reached the international leading level, and won a number of national patents:
1 ) ZL 2014 2 0382722.3
2 ) ZL 2014 2 0382834.9
ZL 2014 2 0384239.93)
ZL 2014 2 0384380.94
ZL 2014 2 0382750.5
- Product Description
- Technical features
- Main technical parameters
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- Commodity name: CVE CVM solid seal vacuum contactor and combination appliance
CVE/M-12 vacuum contactor and CVE/M(F) vacuum contactor fuse combination appliance is suitable for three-phase AC power system with rated voltage of 3.6-12KV and rated frequency of 50Hz. It can be assembled to form a F-C circuit for power plants and industrial and mining enterprises to close and open AC high-voltage motors, transformers, induction furnaces and other loads, and has overload and short-circuit protection functions.
The product is designed with the principles of vacuum arc extinguishing and air insulation. Epoxy resin solid seal insulation (APG) technology is adopted. The overall dimensions of the product are the same as those of VD4 circuit breaker of ABB Company, and can be arranged in 650mm wide central switch cabinet. The product has the characteristics of long service life, frequent operation, stable operation, small footprint, etc. Product technology has reached the international leading level, and won a number of national patents:
1 ) ZL 2014 2 0382722.3
2 ) ZL 2014 2 0382834.9
ZL 2014 2 0384239.93)
ZL 2014 2 0384380.94
ZL 2014 2 0382750.5 -
The arc extinguishing chamber of CVE/M-12 vacuum contactor adopts epoxy resin solid sealing technology (APG). The vacuum arc extinguishing chamber and primary conductive parts are insulated with epoxy resin solid, thus avoiding the protection and pollution problems caused by the insulation of the main circuit due to the exposure of the arc extinguishing chamber. Among them, the vacuum arc extinguishing chamber is completely maintenance-free during its life cycle: this product is especially suitable for places with harsh environment and serious pollution.
CVE/M-12 vacuum contactor and CVE/M(F) vacuum contactor-fuse combination electrical appliance are of center-mounted handcart structure, with external dimensions interchangeable with ABB's VD4 vacuum circuit breaker, and mechanical interlocking meets the requirements of center-mounted switchgear (e. g. KYN28KYN96, ZS1, GZS, etc.). Complete the five-proof chain requirements with the cabinet body through the chassis car.
Modular electromagnetic operating mechanism, low power consumption, energy saving and reliable; permanent magnet mechanism, few parts, long life, maintenance-free design. Mechanical life of up to 300000 times (electricity to maintain 500000 times), to meet a variety of frequent start-up control places.
Reliable firing pin system design, to ensure that the contactor in the fuse after the reliable opening, the maximum protection of the load. The short-circuit fault current of the combined electrical appliance is generally within 10ms (half a cycle). Moreover, the breaking capacity can reach 50KA. When the fuse breaks the short-circuit fault, it can effectively limit the short-circuit fault to a certain range (current limiting range), so it can protect its load equipment more effectively and reliably, and save investment.
Patented design, convenient fuse replacement method; The front end of the fuse is a press-in fuse mounting contact, and the rear end is a plug-in fuse mounting contact. With the fuse mounting cover, the fuse can be quickly installed and replaced.
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O CVE/M-12 Vacuum Contactors
Serial Number Name Unit Data 1 Rated voltage kV 3.6 / 7.2 12 2 Rated insulation level 1 min power frequency withstand voltage kV 32 42 Lightning impulse withstand voltage 60 75 3 Rated frequency Hz 50 4 Rated current A 400 5 Rated short-time withstand current (4S) kA 4 6 Rated peak withstand current KA 12.5 7 Limit breaking current A 4000 3200 8 Rated closing current A 4000 9 Rated work system/use category Continuous duty system/AC-3, AC-4 10 Mechanical life (mechanical retention) Times 300,000 O CVE/M-12 Vacuum Contactor-Fuse Combination
Serial Number Name Unit Data 1 Rated voltage kV 3.6/7.2 12 2 Rated insulation level Imin power frequency withstand voltage kV 42 42 Lightning impulse withstand voltage 75 75 3 Rated frequency Hz 50 4 Rated current A 125 5 Rated short-circuit breaking current (expected value) kA 50 6 Rated short-circuit closing current (peak) KA 130 7 Rated handover current A ≤ 3200 o Mechanical characteristics
Serial Number Name Unit Data 1 phase spacing mm 150/210 2 Contact opening distance mm 6±1 3 Overtravel mm 3 ±0.5 4 Closing time ms ≤50 5 Opening time ms ≤50 6 Closing bounce time ms ≤4 7 Three-phase closing in different periods S ≤2 8 Loop resistance μ Ω Contactor W150; Combined electrical appliance W 200
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