Automatic transfer switches (ATS), available from IPD Industrial Products , utilise GE moulded case circuit breakers (MCCB). These user friendly transfer switches comprise two parts - the Basic Transfer Switch (BTS) and the Logic Controller.
The Basic Transfer Switch is available in general ratings of 160A, 250A, 400A and 630A. The Logic Controller is a pre assembled unit that includes push buttons indicating lights, auto off manual selector and labels.
The BTS includes two MCCBs on a mechanical interlock fitted with auxiliary contacts, alarm contacts and motor operators. There are two umbilical cords supplied with 500mm of cable terminated on a connector which plugs onto the Logic Controller.
The Logic Controller features clear 22mm pilot lights and illuminated pushbuttons for local control and status indication. There is also a mimic diagram on the panel for clear indication. All of these parts are pre assembled and controlled by the GE Fanuc PLC.
Standard options include:
- Timers for generator start, cooling time, return to normal and time for disconnection
- Normal supply voltage monitoring
- Load shedding and reconnection signals
- Emergency stop signal
- Warning of transfer