Water-ring vacuum pumps are becoming increasingly widespread, and suitable operating methods are selected during their use, with their advantages becoming ever more apparent. Let us now take a look at the various braking methods available for water-ring vacuum pumps.

1. Regenerative braking: When the water-ring vacuum pump decelerates or comes to a halt, the energy generated by braking is fed back to the DC bus via an inverter circuit and absorbed by a resistive circuit. Regenerative braking operates whilst the servo is functioning normally; however, the motor cannot be braked in the event of a fault, emergency stop or power failure, and the process is carried out automatically by the system.

2. Electromagnetic braking: This locks the shaft of the SK water-ring vacuum pump via a mechanical device. Electromagnetic braking is typically activated following an SV or OFF command. Otherwise, the amplifier may become overloaded. Dynamic braking is usually activated following an SV, OFF command or a power cut to the main circuit. Otherwise, the dynamic braking resistor may overheat.

3. Dynamic Braking: Comprising a dynamic braking resistor, this system utilises energy dissipation to brake the water-ring vacuum pump, thereby reducing its mechanical travel distance in the event of a fault, emergency stop or power failure. The dynamic braking system operates without requiring a power supply and must be controlled by an external relay.

The above outlines the appropriate braking methods for water-ring vacuum pumps during operation. These braking methods have a positive impact on the pump’s performance, effectively improving efficiency and enhancing its functionality. Users should select the appropriate method based on actual operational requirements to avoid unnecessary losses caused by improper operation. Should you have any further queries, please visit our website, where we regularly update our articles; we hope this information proves helpful.