Q:Permanent magnet AC contactor working principle

The permanent magnet, which is fixed in the contactor linkage mechanism, is connected with the variable polarity soft magnet which is solidified on the base of the contactor so as to achieve the purpose of pulling

Q:What are the principles of selection of contactors?

When the rated current of the contactor main contact is selected, the rated current of the main contact shall be equal to the rated current of the load

Q:Contactor mainly by the drive system, contact system, arc and other components.

The main contact function is to connect and break the main circuit, control the larger current

Q:The computer as a host computer

in the detection of the coil rated voltage at the same time start the timer to start timing, build contact level detection circuit real-time monitoring Change of contact level

Q:Contactor dynamic performance detection technology and comprehensive evaluation method

The technical performance of the assessment of the main or the use of type test, the method focuses on electrical and electrical life of the electrical,

Q:The Development of Electrical Performance Testing Technology for Contactors

The peak position is the grid frequency, Calculate the grid frequency using the formula

Q:The contactor is mainly composed

The contactor can operate at high frequencies, up to 1200 times per hour when the power is turned on and off

Q:What types of contactors can be divided into?

magnet combined with the combination of operating mechanism, not just the use of the original electromagnetic Suction and spring reaction as the core of the pull and separation of powe

Q:Dynamic Measurement Technology of Contactors and Comprehensive Evaluation Method

AC contactor dynamic test device to DSP as the core, build a variety of signal sensors, through the RS232 and the host computer for data communication.

Q:Seeking Star Triangle to start the contactor on and off the order and process

In the control circuit, the first branch has a time relay coil KT, when it is energized, the dynamic contact contact will be delayed open