The right-hand side of the display shows the status of the Closed Transition Transfer
“Permit” or Inhibit” signals. Depending on the operating status of the ATS, Closed
Transition Transfer will be inhibited should only 1 source of supply be available or
Protection Lock-out relay has been activated. Note: Closed Transfer operation is only
possible if the optional feature is enabled in Settings. Refer to Section 5.11.17 for further
details.
4.6.3. CLOSED TRANSITION OPERATION (SOFT-LOAD TRANSFER
MODEL 4)
If the ATS is supplied with Closed Transition Transfer Soft-load Transfer (i.e. Model 4)
features, the CLOSED TRANSITION control selection will be provided on the GHC
display via the Change Mode button selection.
When the CLOSED TRANSITION button is selected, a pop-up screen will appear
showing operation mode selections as shown below;