The relationship between the life of the good price and quality 1500V DC Contactor and the magnetic blow of DC contactor
Release time:
2022-04-13 13:44
Magnetic blowing has been widely used in good price and quality 1500V DC Contactor that are less sensitive to space requirements, The magnetic field blowing arc will affect the contact life of the 1500V DC Contactor and thus affect the DC contactor. The magnetic blowing of the magnetic field in the good price and quality 1500V DC Contactor uses a permanent magnet or an electromagnet to generate a magnetic field. The direction of the interaction between the magnetic field and the arc of the good price and quality 1500V DC Contactor is to pull the circuit away from the moving and static contacts.
With the rapid movement of the moving contact of the 1500V DC Contactor and the application of the magnetic blowing effect, the arc of the 1500V DC Contactor is elongated, and the arc resistance increases rapidly, causing the arc current to drop sharply. The thermal efficiency of the arc in the good price and quality 1500V DC Contactor increases with the decline. The degree of dielectric ionization decreases as the temperature decreases, and the electrical conductivity of the arc in the 1500V DC Contactor decreases.
If the arc of the good price and quality 1500V DC Contactor moves outward while pulling the arc, with other means of cutting the arc and cooling the arc, the arc of the good price and quality 1500V DC Contactor will be extinguished faster. Reducing the arcing time is an important means to protect the contacts of the 1500V DC Contactor. A good magnetic blowing design can certainly prolong the life of the 1500V DC Contactor.
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