Table of Contents
Advertisement
Figure 33 STS2 Touch Screen Display
Mimic
Sources
Event controls
Event display
4. Close CB1.
5. Verify that Source 1 voltages are nominal and CB1 breaker status is correctly indicated on the
Monitor/Mimic screen.
6. Close CB2.
7. Verify that Source 2 voltages are nominal and CB2 breaker status is correctly indicated on the
Mimic screen.
8. Verify that boxes for the preferred source and corresponding static transfer switch are
highlighted on the Mimic screen, indicating which side of the Static Transfer Switch is on.
9. Close Output Breaker CB3 (and CB3A in redundant output configurations).
10. Verify CB3, the Output box, and the Load box are highlighted, indicating that CB3 is closed and
the Output and Load are energized.
NOTE
For redundant output switch units, CB3 descriptions apply to CB3 and
CB3A.
11. Press the RESET button on the touch screen to reset any previous alarms.
12. Verify in the Event Display and the Mimic that there are no active alarms.
If any active alarms are displayed, refer to 11.0 - Alarm and Faults for a description of the
alarms and possible causes. All active alarm conditions should be corrected before proceeding.
13. Turn on the load equipment following the load equipment manufacturer's recommendations.
10.2
Manual Transfer / Preferred Source Selection
The Source Transfer option (Source Xfers) in the touch screen menu allows you to select a pre-
ferred source. Transfers are only permitted when the voltage and current are within their proper
operating range and the sources are synchronized. The Source Transfer screen indicates the syn-
chronization between the two sources, while the voltage and frequency are displayed on the Mimic.
See Figure 34. Transfer is inhibited if the deviation exceeds the parameter set in the Source Set
Points. See User Settings on page 83
Operating Instructions for the Touch Screen Interface
Static
Transfer
Switch
59
Advertisement
Table of Contents
