10 SWITCH STATUS AND CONTROLAll P14x products support Switch Status and Control for up to 8 switchgear elements. This is available forIEC60870-5-103 and IEC61850 protocols. The device is able to monitor the status of and control up to eightswitches. The types of switch that can be controlled are:● Load Break switch● Disconnector● Earthing Switch● High Speed Earthing SwitchConsider the following feeder bay:V01241XSWI1 XSWI2XSWI3XSWI4XCBRLegend:XSWI1 = Disconnector 1XSWI2 = Disconnector 2XSWI3 = Disconnector 3XSWI4 = Earthing SwitchXCBR = Circuit BreakerFigure 171: Representation of typical feeder bayThis bay shows four switches of the type LN XSWI and one circuit breaker of type LN XCBR. In this example, theswitches XSWI1 – XSWI3 are disconnectors and XCSWI4 is an earthing switch.For the device to be able to control the switches, the switches must provide auxiliary contacts to indicate theswitch status. For convenience, the device settings refer to the auxiliary contacts as 52A and 52B, even thoughthey are not circuit breakers.There are eight sets of settings in the SWITCH CONTROL column, which allow you to set up the Switch control, oneset for each switch. These settings are as follows:SWITCH1 TypeThis setting defines the type of switch. It can be a load breaking switch, a disconnector, an earthing switch or ahigh speed earthing switch.SWI1 Status InptThis setting defines the type of auxiliary contacts that will be used for the control logic. For convenience, the devicesettings refer to the auxiliary contacts as 52A and 52B, even though they are not circuit breakers. "A" contactsmatch the status of the primary contacts, whilst "B" contacts are of the opposite polarity.SWI1 Control byThis setting determines how the switch is to be controlled. This can be Local (using the device directly) remote(using a communications link), or both.SWI1Trip/CloseThis is a command t o directly trip or close the switch.SWI1 Trp Puls T and SWI1 Cls Puls TP14x Chapter 14 - Monitoring and ControlP14xEd1-TM-EN-1 337
