Installation and use of AC contactor

1 AC contactor operation problem
AC contactor is a widely used control appliance, mainly used to control motors and other electrical equipment operation and stop, an ordinary AC contactor in the attraction, the coil of the AC contactor still through the alternating current, power consumption is relatively large, so the heat coil, noise is relatively common, not only a waste of electricity can and coil insulation easily aging makes the AC contactor shortened life expectancy.
Function and using effect of energy saving module of 2 AC contactor
In an ordinary AC contactor is used for the energy saving module, reduces the AC contactor suction state power greatly, coil temperature will greatly reduced, the contactor coil insulation layer because of the high temperature aging, so as to prolong the service life of the contactor. The noise greatly reduced the operating state of AC contactor, the contactor to improve the use environment conditions. Ordinary AC contactor can only be rated voltage of 85% to 110% of the range, when the coil ends voltage higher than the rated voltage of 110%, AC contactor coil may be due to heat and burn, after the installation of this module in the contactor, AC contactor to withstand voltage fluctuations in power, in the case of high power supply voltage, AC contactor coil will not burn.
Join the module after the contactor sound crisp and powerful, attracting state current is only not the installation of the module of 10% ~ 40%, power-saving rate of 90% ~ 60%. And contactor noise reduced, for a long time to contactor attracting, the contactor coil surface without obvious temperature rise, even and cool feeling, to CJ20-400A contactor test, without energy-saving module (coil voltage 220V) contactor in the attraction of the reach a steady state when the voltage is 220V, current for 0.615A, noise is 52.5dB, temperature 105.2 DEG C, the installation module after the steady state is reached when the voltage is 220V, current 0.184A, noise is 36.6dB, 26.8 degrees Celsius temperature, seen in a power saving rate of 70%. By the above experiments can be seen: installing l AC contactor energy-saving module in the contactor coil circuit, the contactor current, noise and temperature rise decreased drastically. It is proved that the module of AC contactor with decrease coil loop current, reduce noise, reduce temperature rise.
Now Kang Bao county all street lamps have been installed in the module, a complete solution to the interference of the noise of the contactor at night when the residents of the interference, saving a lot of electricity.
Installation and application of energy saving module of 3 AC contactor
At the top of the module, there are two input terminals, and the lower part of the lower side of each have two output leads, the lower part of the module output wire connecting the terminal (A2, A1), the input terminal of the module to the end of the AC contactor control circuit.
Energy saving module of the working voltage of AC220V, the input terminal can only access the operation of the 220V power supply, access to the 380V power, but the output of this module can drive coil rated voltage 380V AC contactor, this point, please pay special attention to!
If the contactor coil voltage is 220V, the wire will be removed from the terminal, and then the output of the module is connected to the coil of the contactor. If the original contactor coil voltage is 380V, to put the module on the AC contactor coil circuit, but also the original control circuit two power lines in a root change received N line (the original control power line connecting two phase, voltage of 380V, now one of the strings instead received N line, enable the control voltage change 220V), if the original control circuit and rated voltage 380V indicator light, an intermediate relay, a time relay and so on element, but also the replacement of these components is the rated voltage is 220V element.