Marathon TS 870 Manuel de service
9087A –198th Street, Langley, BC Canada V1M 3B1 Telephone (604) 888-0110
TS 870
AUTOMATIC TRANSFER SWITCHES
With TSC 900 Controller
INSTALLATION, OPERATING &
SERVICE MANUAL
PM062 Rev 10 15/04/07
TS 870 TRANSFER SWITCH
PM062 REV 10 15/04/07 Thomson Power Systems
TABLE OF CONTENTS
1. PRODUCT REVISION HISTORY 1
2. EQUIPMENT STORAGE 2
2.1. ENVIRONMENTAL CONDITIONS 2
3. NOTES TO INSTALLER 2
3.1. UPSTREAM CIRCUIT PROTECTIVE DEVICES/ELECTRICAL CONNECTIONS 3
3.2. TRANSFER SWITCHES WITH INTEGRAL OVER CURRENT PROTECTION 3
3.3. TRANSFER SWITCHES WITH MULTI-TAP VOLTAGE CAPABILITY 4
3.4. REMOTE START CONTACT FIELD WIRING 4
3.5. DIELECTRIC TESTING 5
3.6. INSTALLATION OF OPEN TYPE TRANSFER SWITCHES 5
3.7. MOUNTING OF ENCLOSED TRANSFER SWITCHES 5
4. GENERAL DESCRIPTION 8
4.1. PRODUCT MODEL CODE 10
4.2. TYPICAL COMMISSIONING PROCEDURES 11
5. GENERAL THEORY OF OPERATION 11
5.1. STANDARD AUTOMATIC TRANSFER SWITCH 11
5.2. SERVICE ENTRANCE AUTOMATIC TRANSFER SWITCH 12
5.3. TEST MODES 16
6. OVER CURRENT PROTECTION 16
6.1. STANDARD TS 870 AUTOMATIC TRANSFER SWITCH 16
6.2. OPTIONAL TS 870 AUTOMATIC TRANSFER SWITCH WITH INTEGRAL OVER
CURRENT PROTECTION 16
7. GENERAL NOTES ON SERVICING TRANSFER SWITCH MECHANISM 18
8. TRANSFER SWITCH MECHANISM –100A-800A, S STYLE 20
8.1. MANUAL OPERATION 20
TS 870 TRANSFER SWITCH
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9. TRANSFER SWITCH MECHANISM –1000A-1200A, T-STYLE 22
9.1. MANUAL OPERATION 22
10. RECOMMENDED MAINTENANCE 23
11. FRONT VIEW (TYPICAL) 3 / 4 POLE 100A-250A S-STYLE TRANSFER
MECHANISM 25
12. FRONT VIEW (TYPICAL) 3 POLE 400A-800A S-STYLE TRANSFER MECHANISM
(MECHANISM FRONT COVER REMOVED) 26
13. FRONT VIEW (TYPICAL) 3 / 4 POLE 1000A-1200A T-STYLE TRANSFER
MECHANISM 27
14. CONNECTION CONFIGURATION OPTIONS 28
CABLE TERMINAL INFORMATION 29
15. REQUIREMENTS FOR UPSTREAM CIRCUIT PROTECTIVE DEVICES 29
15.1. WITHSTAND CURRENT RATINGS (ALL MODELS WITHOUT INTEGRAL
OVERCURRENT PROTECTION OPTION) 29
15.2. INTERRUPTING CAPACITY CURRENT RATINGS (ALL MODELS WITH INTEGRAL
OVERCURRENT PROTECTION OPTION) 30
16. GROUND FAULT SITE TEST REQUIREMENTS 30
16.1. PERFORMANCE TEST 30
17. TROUBLESHOOTING 32
18. REPLACEMENT PARTS 36
19. PRODUCT RETURN POLICY 37
20. NOTES 38
21. PERFORMANCE TEST FORM 39
APPENDIX A –TYPICAL TS 870 ATS COMMISIONING PROCEDURE
APPENDIX B –TS 870 SYSTEM VOLTAGE CHANGE PROCEDURE
APPENDIX C –SEISMIC CERTIFICATE
TS 870 TRANSFER SWITCH
PM062 REV 10 15/04/07 1 Thomson Power Systems
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
Rev 0 04/11/19
Original release.
Rev 1 05/03/08
Changes to incorporate reversing style ATS Motor for 100-250A
transfer switches.
Rev 2 05/05/26
Revisions to Section 8 and Section 18.
Rev 3 06/05/08
Revisions to Section 15.
Rev 4 07/07/31
Changes to Incorporate new S-Style 400A mechanism
Rev 5 08/03/05
Changes to Incorporate new S-Style mechanism (100A, 150A,
200A, 250A, 600A, 800A)
Rev 6 08/08/01
Changes to Incorporate optional TSC 80e Transfer Controller
Rev 7 09/01/01
Changes to Incorporate standard TSC 80e Transfer Controller
Rev 8 10/01/25
Changes to Incorporate Seismic Certification and Mounting
Requirements
Rev 9 14/01/08
Update to Marathon Thomson Power System Logo
Rev 10 15/04/07
Changes to incorporate TSC 900 Transfer Switch Controller
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
TS 870 Quick Start Instruction Manual, PM150
TSC 900 Transfer Switch Controller, PM151
TSC 900 ModbusTM Communication, PM152
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.
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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.
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
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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 5.2.2 of this manual for additional information on operation of the Transfer
switch following an over current trip condition.
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.
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3.3. TRANSFER SWITCHES WITH MULTI-TAP VOLTAGE CAPABILITY
If the transfer switch has programmable multi-tap voltage capability (i.e. ATS Model Code
with Voltage Code “Y”), 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 drawings supplied with 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 “TS 870 SYSTEM VOLTAGE CHANGE
PROCEDURE”(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
900 controller connected into the circuit as serious damage will occur to the
controller. All AC control fuses and control circuit isolation plugs connected to the
TSC 900 must be removed if high voltage dielectric testing is performed on the
transfer switch.
3.6. INSTALLATION OF OPEN TYPE TRANSFER SWITCHES
Please refer to the factory for additional information.
3.7. MOUNTING OF ENCLOSED TRANSFER SWITCHES
Model TS870 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 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 342%.
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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