Product features:

① The breaker adopts a wall-passing structure, combined with an isolating switch and a clear break, with a grounding switch installed on the arc-extinguishing chamber side. The grounding switch has short-circuit closing capabilities.

② There is a complete anti-misoperation function between the circuit breaker, isolating switch, and grounding switch, with a cabinet door interlock to achieve the full five-proof function.

③ The vacuum arc-extinguishing chamber can be sealed in the wall-passing pole, with an interrupting capacity of up to 31.5kA.

④ Strong environmental adaptability, with a maximum altitude of up to 4500m and a minimum ambient temperature of -40°C.

⑤ Multiple cables can be connected to the cable outlet.

⑥ Compact switch structure and small size.

Application range:

This product is suitable for the control and protection of the high-voltage side in photovoltaic power generation and wind power dedicated pre-installed substations. It features complete functions and is suitable for operation in high-altitude environments. It can be directly installed in the high-voltage end of pre-installed substations without the need for an additional switchgear cabinet. The interlocking system is reliable, and the performance fully meets the requirements for wind power plants.

The VTZ1-40.5 circuit breaker is also suitable for 40.5kV rated voltage three-phase AC 50Hz indoor switchgear, and is used for protection and control in power distribution systems of wind, solar, energy storage power plants, substations, and industrial and mining enterprises.