High Voltage Vacuum Circuit Breaker 20 kV VGU-20 for Reliable Generator Protection

VGU-20 high-voltage vacuum switches are designed for disconnection in normal and emergency modes of generator circuits of three-phase alternating current. Switches are used for operation in networks with both isolated and grounded neutral. They are intended for operation at newly constructed facilities, as well as for replacement of devices that have exhausted their switching or mechanical life. The switches are air-cooled switching devices with three poles mounted on a common frame and controlled by a spring actuator. Advantages: <ul> <li>- The first vacuum generator switch with parameters: rated current - 6300 A, rated tripping current - 90 kA.</li> <li>Overall-installation dimensions allow to replace old oil circuit breakers MGU-20 without additional costs.</li> </ul>