Q:What are the classification of contactors?

arc time is relatively long, in order to fully release the circuit The remaining energy. The combustion of the arc produces high temperature and strong light, the surface of the contact has a serious ablation,

Q:How to choose the contactor

for example, the circuit current is 218A, the 250A contactor should be selected

Q:The main classification of contactors

The overall trend of the contactor will be toward the long electrical life, high reliability, multi-functional, environmentally friendly, multi-standard, intelligent, communicable direction.

Q:Contactor accessories have what roles?

insulation shell and accessories, all kinds of springs, transmission, short circuit, terminal and so on

Q:Contactor dynamic performance detection technology and comprehensive evaluation method

. In this paper, the dynamic response of the contactor is tested, and the parameters of the contactor mechanical and electrical characteristics are extracted from the contact test waveform

Q:The Development of Electrical Performance Testing Technology for Contactors

The data processing in the literature mainly focuses on the calculation of power grid frequency and power factor

Q:Basic classification of AC contactors

The contactor is mainly composed of electromagnetic system, contact system, arc extinguishing system and other parts.

Q:Electrical performance test technical status related to the connector

The collected data is Fourier transformed, and the time domain signal is converted into a frequency domain signal to calculate the phase of the voltage and current, and the power factor is obtained

Q:What is the noise-free function of traditional contactors?

there will be noise. While the permanent magnet AC contactor is held by the permanent magnet force to maintain, so there will be no noise generated.

Q:Similar terms for contactors and relays

Therefore, as the first floor of a friend said, large capacity of the contactor are generally equipped with an arc cover (because the high current disconnect will produce arc, do not use arc extinguishing, head).