S&C Scada-Mate SD, Installation And Operation Manual

S&C Instruction Sheet 775-510   

17

Pushbutton Operation

Use the following procedure to operate the various Scada-
Mate SD switch pushbuttons:

STEP  21.  

All S&C control units and most control units of 

other manufacture have a 

Local/Remote

feature. To operate, place the LOCAL/REMOTE 
switch inside the control unit to the 

Local 

position. Refer to the instruction sheet furnished 
with the control unit. The switch can now only be 
operated locally. 

Then, press the OPEN or CLOSE pushbut-

ton as appropriate. See Figure  15. The inter-
rupter OPEN/CLOSED indicator on the end 
of the Scada-Mate SD switch base indicates 
interrupter contact position: the target with 
an “O” indicates the interrupters are in the 

Open 

position; the target with a “C” indicates 

the interrupters are in the 

Closed

 position. 

The indicator does not show status of the 
disconnects.

Remote Operation

Use the following procedure to set up the Scada-Mate SD 
switch for remote operation:

STEP  22.  

Place the LOCAL/REMOTE switch inside the 

control unit in the 

Remote

 position. Refer to the 

instruction sheet furnished with the control unit. 

The Scada-Mate SD switch can now only be 

operated by remote supervisory control. By using 
the SCADA system, the dispatcher can test the 
electrical operation of the switch and the entire 
SCADA control path, including communications. 
See Figure 15. The interrupter OPEN/CLOSED 
indicator on the end of the Scada-Mate SD switch 
base indicates interrupter contact position: the 
target with an “O” indicates the interrupters are 
in the 

Open 

position; the target with a “C” indi-

cates the interrupters are in the 

Closed

 position. 

The indicator does not show the status of the 
disconnects. See Figure 16.

Figure 16. The optional disconnect.

Figure 15. Operating the switch using the LOCAL/REMOTE switch
inside the CCU.

The switch control includes OPEN/CLOSE 

pushbuttons, switch-position indicating 

lamps, disconnect closed and latched 

indicating lamps, a LOCAL/REMOTE 

switch, and an operation counter

Operation—For Switches with Power Operator

Disconnect

Pole-unit

OPEN/

CLOSED

indicator