Q:A brief introduction to the power contactor

AC contactor action power from the AC electromagnet, electromagnet by the two "mountain" shaped silicon steel sheet stacked

Q:Briefly describe the type of contactor

One, permanent magnet actuator to save a lot of energy to maintain the coil power consumption, environmental protection and energy conservation.

Q:What is the power contactor

The main contact is generally only normally open contacts, and auxiliary contacts often have two pairs of normally open and normally closed contact, small contactor is often used as an intermediate relay with the main circuit

Q:What are the types of AC contactors?

In order to quickly extinguish the arc when the break, usually contactor are equipped with arc extinguishing device, the general use of semi-sealed vertical seam clay hood, and with a strong magnetic blown arc.

Q:Contactor dynamic performance detection technology and comprehensive evaluation method

and can not be on the dynamic characteristics of electrical appliances and mechanical life of the impact of comprehensive assessment.

Q:The key structure of the contactor

After the 1980s, countries to study the exchange of contactor electromagnet silent and energy-saving

Q:Determine whether the AC contactor can cut off the short circuit current?

When the coil is energized, the static core produces electromagnetic attraction, and the moving core is sucked

Q:Distinguish contactor is good or bad

The coil winding value is about 200 feet. Before measuring the first line should be removed and then measured.

Q:Contactor frequent pull is how the matter

Coil voltage is too low, need to check the control coil power is normal.

Q:How to use Star Triangle to start contactor orders and processes

Coil circuit in the KMY contactor Contact, when the KMY moving contact is closed, KMY moving contact is broken, after a pre-set delay, the time relay dynamic contact KT off, cut off the coil KMY, the circui