Regal Thomson Power Systems TS 880 Service manual

PM178
Rev 0
23/02/20
TS 880
AUTOMATIC TRANSFER SWITCH
WITH TSC 7320 CONTROLLER
INSTALLATION, OPERATING & SERVICE
MANUAL
4916 -275th Street, Langley, BC, Canada V4W 0A3 ·Telephone [phone]
Email: [email protected] · www.thomsonps.com

TS 880 Transfer Switch
PM178 REV 0 23/02/20 Thomson Power Systems
1. PRODUCT REVISION HISTORY 4
2. EQUIPMENT STORAGE 4
2.1. ENVIRONMENTAL CONDITIONS 4
3. NOTES TO INSTALLER 5
3.1. UPSTREAM CIRCUIT PROTECTIVE DEVICES/ELECTRICAL CONNECTIONS 5
3.2. TRANSFER SWITCHES WITH INTEGRAL OVER CURRENT PROTECTION 5
3.3. TRANSFER SWITCHES WITH MULTI-TAP VOLTAGE CAPABILITY 6
3.4. REMOTE START CONTACT FIELD WIRING 6
3.5. DIELECTRIC TESTING 7
3.6. MOUNTING OF ENCLOSED TRANSFER SWITCHES 7
3.7. PRODUCT MODEL CODE 11
4. AUTOMATIC SEQUENCE OF OPERATION 12
4.1. STANDARD ATS - OPEN TRANSITION 12
4.2. STANDARD ATS - CLOSED TRANSITION 13
4.3. SERVICE ENTRANCE ATS 17
4.4. TEST MODES 20
5. OVER CURRENT PROTECTION 21
5.1. STANDARD TS 880 AUTOMATIC TRANSFER SWITCH 21
5.2. OPTIONAL TS 880 ATS WITH INTEGRAL OVER CURRENT PROTECTION 21
6. SERVICING TRANSFER SWITCH MECHANISMS 22
6.1. SERVICING INSULATED CASE TYPE TRANSFER MECHANISMS 22
7. TRANSFER SWITCH MECHANISM OPERATION 24
7.1. GENERAL DESCRIPTION 24
8. MANUAL OPERATION 25
9. FRONT VIEW (TYPICAL) INSULATED CASE TYPE TRANSFER MECHANISM 33
10. CABLE TERMINAL INFORMATION 35
11. REQUIREMENTS FOR UPSTREAM CIRCUIT PROTECTIVE DEVICES 36

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11.1. WITHSTAND CURRENT RATINGS (STANDARD 3 CYCLE MODELS) 36
11.2. INTERRUPTING CAPACITY CURRENT RATINGS (STANDARD 3 CYCLE MODELS)
37
11.3. WITHSTAND CURRENT RATINGS (30 CYCLE MODELS) 38
11.4. INTERRUPTING CAPACITY CURRENT RATINGS (30 CYCLE MODELS) 39
12. GROUND FAULT SITE TEST REQUIREMENTS 40
12.1. PERFORMANCE TEST 40
13. POWER SWITCHING DEVICE TROUBLESHOOTING 46
14. POWER SWITCHING DEVICE DETAILS 48
15. POWER SWITCHING DEVICE ELECTRICAL DIAGRAMS 52
16. REPLACEMENT PARTS 60
17. PRODUCT RETURN POLICY 61
18. NOTES 62
19. PERFORMANCE TEST FORM 63
APPENDIX A –TYPICAL TS 880 ATS COMMISSIONING PROCEDURE
APPENDIX B –TS 880 SYSTEM VOLTAGE CHANGE PROCEDURE
APPENDIX C –SEISMIC CERTIFICATE

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1. PRODUCT REVISION HISTORY
The following information provides an historical summary of changes made to this product since the
original release.
Operating & Service Manual Version
PM178 Rev 0 23/02/20
Original release
Contact Thomson Power Systems, to obtain applicable instruction manuals or if in doubt about any
matter relating to installation, operation or maintenance. Soft copy of the most current version is
available at www.thomsonps.com.
NOTE: All information contained in this manual is for reference only and is subject to change without
notice.
Related Product Instruction Manuals
•TSC 7320 Transfer Switch Controller, PM180
Contact Thomson Power Systems, to obtain these instruction manuals. Soft copy of the most
current versions of these manuals are available at www.thomsonps.com.
2. EQUIPMENT STORAGE
The following procedures are required for correct storage of the transfer switch prior to installation.
2.1. ENVIRONMENTAL CONDITIONS
CAUTION
Failure to store and operate equipment under the specified environmental conditions
may cause equipment damage and void warranty.
2.1.1. EQUIPMENT STORAGE
The transfer switch shall be stored in an environment with a temperature range not
exceeding -4° to +158° Fahrenheit (-20° to +70° Celsius) and a humidity range not
exceeding 5%-95% non-condensing. Before storing, unpack sufficiently to check for
concealed damage. If concealed damage is found, notify the ATS supplier and the
Carrier immediately. Repack with the original or equivalent packing materials. Protect
from physical damage. Do not stack. Store indoors in a clean, dry, well ventilated area
free of corrosive agents including fumes, salt and concrete/cement dust. Apply heat as
necessary to prevent condensation.

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2.1.2. EQUIPMENT OPERATING
The transfer switch shall be operated in an environment with a temperature range not
exceeding +5° to +122° Fahrenheit (-15° to +50° Celsius) and a humidity range not
exceeding 5%-95% non-condensing.
3. NOTES TO INSTALLER
DANGER
Arc Flash and Shock Hazard. Will cause severe injury or death.
Do not open equipment until ALL power sources are disconnected
This equipment must be installed and serviced only by qualified electrical personnel
utilizing safe work practices and appropriate Personal Protective Equipment (PPE).
Failure to do so may cause personal injury or death
3.1. UPSTREAM CIRCUIT PROTECTIVE DEVICES/ELECTRICAL CONNECTIONS
To ensure satisfactory installation of this equipment be sure to observe Cable Terminal
Information regarding power cable connection tightness and Requirements for Upstream
Circuit Protective Devices located in this manual.
All mechanical and electrical connections must be checked for tightness prior to placing this
equipment in service to ensure proper operation and to validate applicable warranty coverage.
3.2. TRANSFER SWITCHES WITH INTEGRAL OVER CURRENT PROTECTION
For models of transfer switch with integral over current protection, the over current protection
must be set prior to operation. The equipment will be shipped from the factory with a long-time
current setting of 100%, of the equipment rating, and maximum short-time/instantaneous
current and time delay settings.
WARNING
Do Not Energize this equipment until device settings have been
verified to ensure proper system protection & coordination. Failure to
do so may result in equipment failure.
Refer to SECTION 4.3.2 of this manual for additional information on operation of the Transfer
switch following an over current trip condition.

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Refer to information supplied with the transfer switch documentation package for adjustment
procedures on the power switching units over current protection trip unit. Contact the factory if
any additional information is required.
3.3. TRANSFER SWITCHES WITH MULTI-TAP VOLTAGE CAPABILITY
If the transfer switch has programmable multi-tap voltage capability (refer to engineered
drawings), confirm the transfer switch has been configured for the correct system voltage prior
to installation.
WARNING
Failure to confirm and match transfer switch voltage with the system
voltage could cause serious equipment damage.
The voltage selections and connections are shown on the engineered drawings attached to
each transfer switch. The factory default settings will be indicated on the calibration label
attached on the inside of the enclosure door (supplied loose on open style models). A blank
label is included to record the applicable settings if the configuration is changed from the
factory default settings.
To change the transfer switch voltage, refer to Instructions To Change System Voltage On
TS 880 Series Transfer Switches With TSC 7320 Controller, attached as Appendix B. Contact
Thomson Power Systems for further information as may be required.
3.4. REMOTE START CONTACT FIELD WIRING
As a minimum, the remote engine start control field wiring shall conform to the local regulatory
authority on electrical installations. Field wiring of a remote start contact from a transfer switch
to a control panel should conform to the following guidelines to avoid possible controller
malfunction and/or damage.
3.5.1. Minimum #14 AWG (2.5mm2) wire size shall be used for distances up to 100ft
(30m)1). For distances exceeding 100 ft. (30m) consult Thomson Power Systems
3.5.2. Remote start contact wires should be run in a separate conduit.
3.5.3. Avoid wiring near AC power cables to prevent pick-up of induced voltages.
3.5.4. An interposing relay may be required if field-wiring distance is excessively long
(i.e. greater than 100 feet (30m)) and/or if a remote contact has a resistance of greater
than 5.0 ohms.
3.5.5. The remote start contact must be voltage free (i.e. dry contact). The use of a
Powered contact will damage the transfer controller.

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3.5. DIELECTRIC TESTING
Do not perform any high voltage dielectric testing on the transfer switch with the TSC 7320
controller connected into the circuit as serious damage will occur to the controller. All AC
and DC control fuses and control circuit isolation plugs connected to the TSC 7320 must be
removed if high voltage dielectric testing is performed on the transfer switch.
3.6. MOUNTING OF ENCLOSED TRANSFER SWITCHES
Model TS880 Automatic Transfer Switches and Automatic Transfer and Bypass Isolation
Switches in Standard enclosures are seismic certified under AC156 building code for non-
structural components.
Standard enclosures are all transfer switch enclosures Thomson Power Systems offers in
NEMA 1, NEMA 2, NEMA 3R and NEMA 4X for the above listed product. If a customer
requests a custom enclosure, it would not be covered under the generic certificate; if
certification were a requirement then consult factory before ordering.
The Automatic Transfer Switches are qualified to the highest known level in North America;
based on site class D. Specifically, this is a spectral acceleration of 200%.
The transfer switch must be installed per the anchoring details provided for seismic
qualification. The equipment can be mounted in alternate means and still qualify if a qualified
Civil Engineer designs the alternate method of anchoring.

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Anchoring Notes:
1. Anchoring must be designed according to IBC 2012 or latest version.
2. The anchoring details shown are recommended according to the seismic
certification; design Engineer may use alternate anchors within the scope of IBC.
3. Wall anchors in concrete; use a typical concrete anchor as necessary.
4. Expansion anchors as shown. To be installed according to manufacturer's
recommendation.

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GENERAL DESCRIPTION
Thomson Power Systems TS 880 series of Automatic Transfer Switches employ two mechanically
interlocked enclosed contact power switching units and a microprocessor based controller to
automatically transfer system load to a generator supply in the event of a utility supply failure. System
load is then automatically re-transferred back to the utility supply following restoration of the utility
power source to within normal operating limits.
The standard TS 880 series Automatic Transfer Switch is rated for 100% system load and requires
upstream over current protection. The TS 880 Automatic Transfer Switch may be supplied with
optional integral over current protection within the enclosed contact power switching units for
applications such as Service Entrance Rated equipment. Refer to SECTION 5 of this manual for
detailed information on over current protection.
The TS 880 series transfer switches employs a TSC 7320 Microprocessor Based controller which
provides all necessary control functions for fully automatic operation. The controller is equipped with
2.3” back-lit LCD display which provides operating status and controls.
For further information on the TSC 7320 Transfer Controller, refer to instruction manual PM180.

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800A - 4000A rated insulated case power switching devices used for the utility and generator sources
are operated by internal drive motor operators. The transfer switch mechanism utilizes the power from
the source to which the electrical load is being transferred. The mechanism provides a positive
mechanical interlock to prevent both power switching units from being closed at the same time, which
allows an interrupted open transition “break-before-make” transfer sequence. For transfer switches
supplied with Closed Transition transfer option, the mechanical interlock is removed thereby allowing
a “make-before break” transfer sequence when both sources of power are available. The TSC 7320
transfer controller provides a standard neutral position delay timer for open transition transfer
sequences to allow adequate voltage decay during transfer operation to prevent out of phase
transfers.
NOTE
For the purpose of this manual, the following standard nomenclature
is utilized:
Utility: to indicate the source of primary power
Generator: to indicate the source of standby power
Power Switching Device: to indicate the Automatic Transfer Switch
power switching device