厂家直销宇捷 JCZ5-7.2/400电磁高压交流真空接触器

产品概述
JCZ5-7.2/400电磁高压交流真空接触器真空接触器适用于交流50-60Hz主回路额定工作电压为7.2kV、12kV，额定电流为630A以下的电力网络中供远距离接通和分断及频繁起动和控制交流电动机用，较适宜和熔断器与各种保护装置组成替代真空断路器。

适用范围
JCZ5真空接触器适用于交流50-60Hz主回路额定工作电压为7.2kV、12kV，额定电流为630A以下的电力网络中供远距离接通和分断及频繁起动和控制交流电动机用，较适宜和熔断器与各种保护装置组成替代真空断路器。
Vacuum contactors utilize vacuum bottle encapsulated contacts to suppress the arc. This arc suppression allows the contacts to be much smaller and use less space than air break contacts at higher currents. As the contacts are encapsulated, vacuum contactors are used fairly extensively in dirty applications, such as mining.
Vacuum contactors are only applicable for use in AC systems. The AC arc generated upon opening of the contacts will self-extinguish at the zero-crossing of the current waveform, with the vacuum preventing a re-strike of the arc across the open contacts. Vacuum contactors are therefore very efficient at disrupting the energy of an electric arc and are used when relatively fast switching is required, as the maximum break time is determined by the periodicity of the AC waveform.
JCZ Serial Single Pole vacuum contactor (vacuum switch) is one-phase, indoor control equipment. It is used in the electricity sy

JCZ Serial Single Pole High Voltage is 50Hz, one-phase, indoor control equipment. It is used in the electricity system of and under 7.2(12)kV, as well as operating of 200A, 400A, 630A and 800A. It featured in operating switch on & off high voltage equipment frequently. It can be used in switching middle voltage three-phase motor, transformer, reactor, capacity. It can be compacted into 2 poles, 3 poles, 4 poles and N poles.