1000V DC Relay manufacturers take you to understand the types of high voltage DC relays
Release time:
2021-11-01 17:37
The 1000V DC Relay manufacturer tells you that from the perspective of application types, vacuum and gas-filled relays are currently the most widely used high-voltage DC relays for new energy vehicles.
The 1000V DC Relay manufacturer tells you that vacuum is the ideal insulation. Since the high-voltage arc is generated by the ionization of the insulating medium, and the vacuum itself has no medium, there is a good isolation between the contacts. The 1000V DC Relay manufacturer tells you that the complete vacuum state is only an ideal state. In fact, some impurity oxygen will remain. In the presence of an arc, the impurity oxygen will generate copper oxide with the copper electrode. The contact resistance will increase and the relay will be at risk of failure.
The 1000V DC Relay manufacturer tells you that gas-filled relays are mainly used at present, and the main arc extinguishing solutions for gas-filled relays are hydrogen and nitrogen. The 1000V DC Relay manufacturer tells you that charging pure hydrogen and adding a deflection magnet to assist arc extinguishing has a better arc extinguishing effect than vacuuming and nitrogen charging. Hydrogen has good insulation properties and is difficult to ionize.
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