Thomson Power Systems TSC 900 User Manual

TS 970 Transfer Switch
PM163 REV 0 20/02/05 25 Thomson Power Systems
7.1.2. MANUAL CLOSING TO GENERATOR POSITION (SIDE B)
1. With all power de-energized, open ATS enclosure door and locate manual operation
handles (Shaft wrench & Screwdriver)
2. Un-plug the ATS control isolation plug (PL-15) to prevent automatic operation (refer to
SECTION 8 for photo showing location of PL-15).
3. Trip Open Utility (Side A) Main Contacts by inserting the screwdriver into the “TRIP”
hole as shown below and pushing until Utility Main Contacts open as shown by the Utility
Position Indicator flag “OFF”
4. Close Generator (Side B) Main Contacts by using both shaft wrench and screwdriver
simultaneously as described below:
Insert the screwdriver into the SELECT B hole and while pushing and holding the
screwdriver in, attach the shaft wrench onto the Power Contactor Operating Shaft and
rotate the shaft wrench in an upward direction until the Gen Main contacts latch closed
as shown by the Generator Position Indicator flag “ON”.
NOTE:
- DO NOT over-torque the shaft wrench/operating shaft handle once position has been attained.
- DO NOT force the shaft wrench in the opposite direction as shown as the operating shaft turns
in one direction only.
5. Once ATS is manually operated to the Generator “ON” position, remove the shaft
wrench & screwdriver from the Power Contactor and secure them away from any live
power sources.
6. Close ATS door and re-energize Generator power to return power to the load.

Thomson Power Systems TSC 900 Specifications

General

Brand	Thomson Power Systems
Model	TSC 900
Category	Switch
Language	English