Power Relay is a device that can make a transition in one or more electrical output circuits when the input meets certain specified conditions.
1. It has ideal insulation performance. Under ideal conditions, it may reach a dielectric constant of 80,000V/mm. Since there is no oxygen, it will not oxidize during use. In this way, the relay has small and stable contact during use. resistance.
2. High electric resistance, large rated load current and conversion current, small contact resistance, stable operation, low noise, small distributed capacitance and inductance between poles, small contact opening distance, low excitation power, fast breaking speed The contact is sealed and is not affected by the pressure, moisture, dust or explosive gas of the surrounding environment, and is suitable for working in a harsh environment.
3. It has good arc extinguishing performance. The arc is easy to spread and is not easy to cause contact wear, so the relay has a long life and can carry a load switch. In summary, the relay has the characteristics of high breakdown voltage, fast arc extinguishing, large breaking current, small size, light weight and long life. Widely used in the field of weak current control, such as cardiac pacemakers, magnetic resonance imaging, high-frequency antenna coupling devices, radar, capacitor discharge, etc.