TSC 80e TRANSFER SWITCH CONTROLLER
PM091 Rev 0 09/01/21 Thomson Technology
20
TEST: (Full load test) A primary source failure is simulated and an engine
start signal will be initiated. When the secondary source is within
normal limits, the TSC 80e will initiate a transfer to the secondary
source. The system will remain in this state until the FTS4 is placed
in another position or the secondary supply fails. Upon a secondary
supply failure, if the primary supply is available, the TSC 80e will
initiate a transfer to the primary supply. The Engine Cooldown time
sequence will be initiated when the test mode is terminated.
3.2.4. REMOTE TEST
To activate a remote load test, a remotely controlled contact is to be closed between
terminal #38 and terminal #44. When the contact closes, an engine start will be
activated, once the engine accelerates to nominal voltage & frequency levels and the
Warm Up Timer expires, the load will be automatically transfer to the generator supply.
When the remote contact is opened, the load will re-transfer back to the utility supply
following expiry of the Utility Return delay timer. The Engine Cooldown time sequence
will be initiated when the test mode is terminated.
NOTE
The load will automatically re-transfer to the utility supply should
the generator fail while on load.
3.3. TRANSFER FAIL FAULT RESET
To reset a Transfer Fail condition, simultaneously press and hold both the Up & Down
arrow pushbuttons on the Lexan faceplate for approximately 5 seconds, the LEDs
above the buttons will commence oscillating after 5 seconds indicating the reset has
been achieved. A flashing LED above the associate source contact on the face of the
TSC 80e Lexan annunciates a Transfer Fail alarm condition. This event will cause the
TSC 80e to force a transfer of the facility loads to the alternate source, after the fault is
reset; the load will automatically retransfer back to the preferred/selected source if
within normal limits (a slight delay is typical before re-transfer commences).
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