Disconnector cubicle

The disconnectors cubicles are installed in the traction substation. Incoming cubicle are situated between the transformer-rectifier group and the feeder, the cellule will cut both the negative and the positive pole. When the substation is equipped with a rectifier circuit breaker, the disconnector cubicle will in this case cut only one pole. The negative cubicle can contain from 1 to 3 single pole disconnectors.
Basic functions: The elements included in this cubicle vary from project to project, but usually includes the following items: Motorized or manual disconnectors (uni- of bi-polar), off load operation, electrical interlocking fonction with the HSCB feeder. System bus-bar Measurement of current and/or voltage
Protection functions Ground fault protection (device 64) Negative-earth over-voltage protection Return current protection (device 32) Stray current collection   Mesuring and displaying Current measurement Current display Voltage measurement Voltage display 3 poles Disconnector cubicle