Indoor vacuum circuit breaker

ZN63 (VS1)-12 side-mounted indoor high-voltage vacuum circuit breaker is fixedly installed, mainly used for fixed switchgear. The short-circuited can be used alone or in-ring network power supply or box type transformer. Non-standard power supply system. ZN63 (VS1)-12 side-mounted indoor high-voltage vacuum circuit breaker is indoor high-voltage switchgear for a three-phase power system with a rated voltage of 12 kV and frequency of 50 Hz. It is used as a protection and control appliance due to vacuum disconnection.

The special advantages of the device are especially suitable for frequent operation at the rated current or for multiple short-circuit currents. Product structure and characteristics Vacuum Interrupter The circuit breaker is equipped with an intermediate sealed ceramic or glass vacuum interrupter, which adopts copper-chromium contact material and the cup-shaped longitudinal magnetic field contact structure.

The electrical wear rate of the contact is small, the electrical life is long, and the withstand voltage level of the contract is adopted. High, the dielectric insulation strength is stable, the recovery speed after the arc is fast, the interception level is low, and the braking ability is strong. Topic structure The main structure of the VS1 vacuum circuit breaker adopts the operation mechanism and the arrangement of the arc extinguishing chamber before and after.

The main conductive loop part is a three-phase floor-standing structure, and the vacuum interrupter is longitudinally installed in a tubular insulating cylinder. The insulating cylinder is made of epoxy resin. The APG process is cast, so it is particularly resistant to creepage. This structural design greatly reduces the focus of the dust on the surface of the arc extinguishing chamber, not only prevents damage to the outside of the vacuum interrupter but also ensures a high resistance to voltage effects even in hot and humid environments.