Integration

Technical specifications

Dimensional drawings

Circuit diagrams

The SIMOREG CCP limits the current created with inverter commutation fault to a harmless level so that thyristors and the associated super-fast fuses are protected. As a result, time-consuming and expensive replacement of the fuses is no longer necessary.

The inverter commutation failure cannot be prevented but its effects can.

• Any gear units used are protected against inadmissibly high torque surges in the event of a fault by de-energizing the current in good time before the maximum current value is reached.

• Up till now high-speed DC circuit breakers have already been used to protect against blown fuses in the event of high system rated currents. The use of the CCP now provides cost-effective protection even in the case of smaller rated currents; the SIMOREG CCP offers the following advantages compared to high-speed DC circuit breakers:

- Protection even in the case of circulating current

- Lower system costs

- Lower space requirement

- No additional air reactors necessary to reduce current gradients in the event of a fault

- Lower operating costs due to being maintenance-free

- Higher availability