THOMSON TS 870 Installation, Operating & Service Manual
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THOMSON TS 870 Installation, Operating & Service Manual

Automatic transfer switch with tsc 900 controller (open & closed transition)
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TS 870
AUTOMATIC TRANSFER SWITCH
WITH TSC 900 CONTROLLER
(OPEN & CLOSED TRANSITION)
INSTALLATION, OPERATING & SERVICE
MANUAL
Part #006332
9087A - 198th Street, Langley, BC, Canada V1M 3B1 · Telephone (604) 888-0110
Email: info@thomsonps.com · www.thomsonps.com
PM062 Rev 11 16/04/19

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  • Page 1 PM062 Rev 11 16/04/19 TS 870 AUTOMATIC TRANSFER SWITCH WITH TSC 900 CONTROLLER (OPEN & CLOSED TRANSITION) INSTALLATION, OPERATING & SERVICE MANUAL Part #006332 9087A - 198th Street, Langley, BC, Canada V1M 3B1 · Telephone (604) 888-0110 Email: info@thomsonps.com · www.thomsonps.com...

  • Page 3: Table Of Contents

    3.6. GENERATOR SET AUTOMATIC OPERATION: 3.7. LOAD TYPES: 3.8. UPSTREAM OVER CURRENT PROTECTION (NON-SERVICE ENTRANCE RATED TS 870): 3.9. UPSTREAM OVERCURRENT PROTECTION (SERVICE ENTRANCE RATED TS870): 3.10. WITHSTAND/INTERRUPTING CURRENT RATINGS: 3.11. TRANSFER SWITCHES WITH INTEGRAL OVER CURRENT PROTECTION 3.12. TRANSFER SWITCHES WITH MULTI-TAP VOLTAGE CAPABILITY 3.13.
  • Page 4 TEST MODES OVER CURRENT PROTECTION 6.1. STANDARD TS 870 AUTOMATIC TRANSFER SWITCH 6.2. OPTIONAL TS 870 AUTOMATIC TRANSFER SWITCH WITH INTEGRAL OVER CURRENT PROTECTION GENERAL NOTES ON SERVICING TRANSFER SWITCH MECHANISMS ATS MANUAL OPERATING INSTRUCTIONS 8.1. S-STYLE ATS -MANUAL OPERATION 8.2.
  • Page 5 16. REPLACEMENT PARTS 17. PRODUCT RETURN POLICY 18. NOTES 19. PERFORMANCE TEST FORM APPENDIX A – TYPICAL TS 870 ATS COMMISSIONING PROCEDURE APPENDIX B – TS 870 SYSTEM VOLTAGE CHANGE PROCEDURE APPENDIX C –SEISMIC CERTIFICATE PM062 REV 11 16/04/19 Thomson Power Systems...

  • Page 6: Product Revision History

    Added Closed Transition Transfer models, and Motor Operator Style ATS mechanisms 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.

  • Page 7: Equipment Storage

    • TSC 900 Modbus 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. EQUIPMENT STORAGE The following procedures are required for correct storage of the transfer switch prior to installation.

  • Page 8: Installation Codes/Permits

    3.3. INSTALLATION LOCATION: The standard TS 870 transfer switch is designed for indoor wall mounting or outdoor wall mounting with NEMA 3R rating. The transfer switch must be installed in an environment where the temperature range is within +5° to +122° Fahrenheit (-15° to +50° Celsius) and humidity range not exceeding 5%-95% non-condensing.

  • Page 9: Generator Set Automatic Operation

    Service Entrance rated TS 870 transfer switch models contain integral over current protection for the Utility source as standard. Service Entrance rated TS 870 transfer switches do not contain any integral over current protection for the generator source and requires upstream generator source over current protection.

  • Page 10: Transfer Switches With Integral Over Current Protection

    To change the transfer switch voltage, refer to TS 870 System Voltage Change Procedure Appendix B. Contact Thomson Power Systems for further information as may be required.

  • Page 11: Remote Start Contact Field Wiring

    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.
  • Page 12 TS 870 Transfer Switch PM062 REV 11 16/04/19 Thomson Power Systems...
  • Page 13 TS 870 Transfer Switch PM062 REV 11 16/04/19 Thomson Power Systems...
  • Page 14 TS 870 Transfer Switch 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.

  • Page 15: General Description

    The standard TS 870 series Automatic Transfer Switch is rated for 100% system load and requires upstream over current protection. The TS 870 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.

  • Page 16: Ats Power Switching Mechanism

    4.2. ATS POWER SWITCHING MECHANISM Four types of ATS power switching mechanisms are provided with TS 870 Series ATS based on amperage size and optional features supplied with the ATS as described below. 4.2.1. “S”- STYLE ATS MECHANISM (100A-800A, OPEN TRANSITION)
  • Page 17 TS 870 Transfer Switch 4.2.1. “T”- STYLE ATS MECHANISM (1000A-1200A, OPEN TRANSITION) The ATS mechanism consists of 2 power switching devices which are mounted in a vertical stacked configuration. mechanism provides a positive mechanical interlock to prevent both power switching units...
  • Page 18 TS 870 Transfer Switch 4.2.2. MO- STYLE ATS MECHANISM (400A-800A CLOSED TRANSITION) The ATS mechanism consists of 2 power switching devices which are mounted in a vertical stacked configuration. Each power switching device uses a 120VAC motor operator with individual spring charging mechanism and shunt trip/close coils.
  • Page 19 TS 870 Transfer Switch 4.2.3. MO- STYLE ATS MECHANISM (1000A-1200A OPEN & CLOSED TRANSITION) The ATS mechanism consists of 2 power switching devices which are mounted in a vertical stacked configuration. Each power switching device uses a 120VAC motor operator with individual spring charging mechanism and shunt trip/close coils.

  • Page 20: Product Model Code

    4.3. PRODUCT MODEL CODE The type of TS 870 series transfer switch supplied is identified by way of a 21digit product code which appears on the equipment rating plate, or model, on the door of the transfer switch, and on the transfer switch drawings. The model code structure and definitions are as follows:...

  • Page 21: Typical Commissioning Procedures

    NOTE: The Typical Automatic Transfer Switch Commissioning Procedures Model Series TS 870, Appendix A, is provided for general information only pertaining to typical site installations and applications. Contact Thomson Power Systems for further information as may be required. AUTOMATIC SEQUENCE OF OPERATION 5.1.

  • Page 22: Standard Ats - Closed Transition

    TS 870 Transfer Switch NOTE: A neutral delay timer circuit will delay the transfer sequence in the neutral position (i.e. both power switching devices open) until the neutral delay time period expires. An engine cooldown timer circuit will be initiated once the load is transferred from the generator supply.
  • Page 23 TS 870 Transfer Switch adjustable) the engine start signal will be removed (contact opening) to initiate stopping of the generator set. Closed Transition Operation Sequence Diagram (Normal Power Failure & Return Sequence) The following operating sequences and time delays are associated with closed transition type transfer switches which momentarily parallel two sources of supply for less than 100 milliseconds.
  • Page 24 TS 870 Transfer Switch  CLOSED TRANSITION: When both sources of supply are available, the transfer switch will operate in a “make-before-break” closed transition sequence during load transfers. NOTE: If only one source of supply is available during an initiated transfer sequence, the control system will automatically revert to an open transition transfer sequence.

  • Page 25: Dual Source Ats

    TS 870 Transfer Switch • If the transfer switch was transferring power from the generator source to the utility source and the generator switching device failed to open, an auxiliary trip relay will trip open the utility power switching device to immediately separate the two power sources.
  • Page 26 TS 870 Transfer Switch generators which are normally de-energized and are signaled to start from the Master ATS. 5.3.1. DUAL UTILITY ATS A Dual Utility application allows an operator to select which source is “preferred” (i.e. Either source may be selected as Preferred), therefore, the alternate source will act as the standby source.

  • Page 27: Service Entrance Rated Ats

    TS 870 Transfer Switch Source Delay timer expires. When the Preferred selected generator is returned to normal operating status, the load will automatically retransfer back to the Preferred selected generator once the Return to Preferred Source Delay timer expires. If the...
  • Page 28 TS 870 Transfer Switch 5.4.2. OVER CURRENT TRIP Should the utility power switching device trip open due to an over current condition, TSC 900 transfer controller will initiate an engine start signal and will permit transfer of the load to the generator supply provided the TSC 900 is programmed for Forced Transfer.
  • Page 29 TS 870 Transfer Switch Close and lock the transfer switch enclosure door before connecting power sources. 5. To re-energize the load, remove the padlock(s) from the service disconnect control switch, and move the switch to the Energized position. The transfer switch will immediately return to the utility or generator supply if within normal operating limits.
  • Page 30 TS 870 Transfer Switch a. Failure of one or more of the sensing/logic contacts. A qualified service technician is required to trouble shoot this specific condition. Switch the utility control circuit isolation switch to the de-energized position to remove utility control power. To isolate the AC voltage sensing and control circuits, remove the isolation plugs PL12 and PL15.
  • Page 31 TS 870 Transfer Switch 6. To re-energize the load, remove the padlock(s) from the service disconnect control switch, and move the switch to the Energized position. The transfer switch will immediately return to the utility or generator supply if within normal operating limits.

  • Page 32: Test Modes

    TS 870 Transfer Switch Service Disconnected pilot light will not illuminate due to loss of control power. NOTE: To return the transfer switch back to normal operation, the utility control circuit disconnect switch and ATS Power Chassis & Voltage Sensing Isolation Plugs (PL12 &...

  • Page 33: Over Current Protection

    240V. An upstream over current protection device is required on the generator source which feeds the TS 870 Transfer Switch if integral over current protection option is not specified on the ATS. NOTE: For models of transfer switch with adjustable integral over current protection trip units, the over current protection must be set prior to operation.
  • Page 34 TS 870 Transfer Switch PM062 REV 11 16/04/19 Thomson Power Systems...

  • Page 35: General Notes On Servicing Transfer Switch Mechanisms

    TS 870 Transfer Switch GENERAL NOTES ON SERVICING TRANSFER SWITCH MECHANISMS 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).
  • Page 36 TS 870 Transfer Switch 7.3. To maintain operational integrity, ensure that: • All control devices are in good condition and correctly calibrated. • All control devices including TSC 900 connectors are adequately secured in their plug-in fixtures. Only qualified personnel should undertake Service work. Failure to correctly maintain an automatic transfer switch may present a hazard to life and equipment.

  • Page 37: Ats Manual Operating Instructions

    TS 870 Transfer Switch ATS MANUAL OPERATING INSTRUCTIONS 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 operated only by qualified electrical personnel utilizing safe work practices and appropriate Personal Protective Equipment (PPE).
  • Page 38 TS 870 Transfer Switch 3. Insert manual handle into the center hole of the transfer switch mechanism. 4. To manually operate mechanism, rotate handle to the desired position as labeled on the ATS mechanism cover. Do not over-torque handle once position has been attained.

  • Page 39: T-Style Ats -Manual Operation

    TS 870 Transfer Switch 8.2. T-STYLE ATS -MANUAL OPERATION The transfer switch maybe operated manually for maintenance or emergency operation conditions provided both Utility and Generator supplies are de-energized prior to manual operation. DANGER HAZARD OF ELECTRICAL SHOCK, EXPLOSION, OR ARC FLASH This equipment must be serviced only by qualified electrical personnel utilizing safe work practices and appropriate Personal Protective Equipment (PPE).
  • Page 40 TS 870 Transfer Switch 3. Pull the manual handle towards yourself to dis-engage the manual handle rod from the motor drive mechanism. 4. To manually operate mechanism, push Manual Operation Handle knob handle up or down to the desired position as labeled on the ATS Toggle arms.

  • Page 41: Mo Style Ats -Manual Operation

    TS 870 Transfer Switch 8.3. MO STYLE ATS -MANUAL OPERATION The MO-Style Transfer Switch can be operated manually using either electrically operated push buttons located on the front of the ATS door, or using the mechanical operated pushbuttons inside the ATS on the front of each power switching device.
  • Page 42 TS 870 Transfer Switch NOTE Manual When the Mode is selected the engine start output logic is disabled. Where generator voltage is required during manual operation the local generator controls must be set for manual operation. MANUAL TRANSFER TO GEN SUPPLY (Open Transition) To transfer manually to generator supply, follow procedure listed below;...
  • Page 43 TS 870 Transfer Switch switching device. Refer to Diagrams #1 & #2 below. Verify the generator power switching device contacts are closed via Red (I) Closed contact status flag. NOTE: If the Transfer Switch is supplied with Closed Transition Transfer feature, the mechanical close push button on the face of the power switching unit is not available for use.
  • Page 44 TS 870 Transfer Switch MANUAL TRANSFER TO UTILITY SUPPLY (Open Transition) To transfer manually to the utility supply, follow procedure listed below; 1. Turn the Transfer Switch door mounted System Operation Mode selector to MANUAL or Select MAN mode on TSC 900 Controller (refer to TSC 900 manual for further information).
  • Page 45 TS 870 Transfer Switch 5. The generator set should be manually turned off at the local control panel. 8.3.2. MECHANICALLY OPERATED POWER SWITCHING DEVICE PUSH BUTTONS MANUAL TRANSFER TO GENERATOR SUPPLY (Open Transition) To transfer manually to generator supply, follow procedure listed below;...
  • Page 46 TS 870 Transfer Switch NOTE If the Transfer Switch is supplied with Closed Transition Transfer feature, the mechanical close push button on the face of the power switching unit is not available for use. A separate electrical close push button located on the power switching unit door is provided for manual closing.
  • Page 47 TS 870 Transfer Switch MANUAL TRANSFER TO UTILITY SUPPLY (Open Transition) To transfer manually to the utility supply, follow procedure listed below; 1. Turn the Transfer Switch door mounted System Operation Mode selector to MANUAL or Select MAN mode on TSC 900 Controller (refer to TSC 900 manual for further information).
  • Page 48 TS 870 Transfer Switch RECOMMENDED MAINTENANCE 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).

  • Page 49: Front View (Typical) 3 / 4 Pole 100A-250A S-Style Transfer Mechanism

    TS 870 Transfer Switch FRONT VIEW (TYPICAL) 3 / 4 POLE 100A-250A S-Style TRANSFER MECHANISM PM062 REV 11 16/04/19 Thomson Power Systems...

  • Page 50: Front View (Typical) 3 Pole 400A-800A S-Style Transfer Mechanism (Mechanism Front Cover Removed)

    TS 870 Transfer Switch 10. FRONT VIEW (TYPICAL) 3 POLE 400A-800A S-Style TRANSFER MECHANISM (Mechanism Front Cover Removed) PM062 REV 11 16/04/19 Thomson Power Systems...

  • Page 51: Front View (Typical) 3 / 4 Pole Motor Operator (Mo) Style Transfer Mechanism (400A-800A Closed Transition, 1000-1200A)

    TS 870 Transfer Switch 11. FRONT VIEW (TYPICAL) 3 / 4 POLE MOTOR OPERATOR (MO) STYLE TRANSFER MECHANISM (400A-800A CLOSED TRANSITION, 1000-1200A) PM062 REV 11 16/04/19 Thomson Power Systems...

  • Page 52: Cable Terminal Information

    500MCM 4/0– TS 87xA-1200 500MCM 1. Optional terminal ratings are available in some models – Consult Thomson Power Systems. 2. For other model types not shown, contact Thomson Power Systems for further information. PM062 REV 11 16/04/19 Thomson Power Systems...

  • Page 53: Requirements For Upstream Circuit Protective Devices

    42,000 1000/1200 1. Standard ratings only are shown. Consult Thomson Power Systems for versions with higher withstand current ratings. 2. For other model types not shown, contact Thomson Power Systems for further information. PM062 REV 11 16/04/19 Thomson Power Systems...

  • Page 54: Interrupting Capacity Current Ratings (All Models With Integral Overcurrent Protection Option)

    50,000 50,000 1000/1200 1. Standard ratings only are shown. Consult Thomson Power Systems for versions with higher interrupting capacity current ratings. 2. For other model types not shown, contact Thomson Power Systems for further information. 14. GROUND FAULT SITE TEST REQUIREMENTS Per NEC and UL1008, a ground fault protected system shall be performance tested when first installed on site.

  • Page 55: Troubleshooting

    TS 870 Transfer Switch the maximum setting of the ground fault protection shall be 1200 amps, and the maximum time delay shall be 1 second for ground faults equal to or greater than 3000 amps. The inspection authority should be contacted to confirm actual test requirements as these may vary by region or local code requirements.
  • Page 56 (open transition). Verify motor does not rotate when 120VAC is applied Defective ATS mechanism motor (S or T- directly to motor leads. If defective Return to Thomson Style ATS Mechanism only) Power systems using RMA process A loose control wire connection...
  • Page 57 • Verify TSC 900 SCU has SD Memory Card fully inserted into socket. If defective, return to Thomson Power systems using RMA process Verify Utility side limit switch (ULS) n/c contact is Faulty motor limit switch (S or T-Style ATS...
  • Page 58 Verify motor does not rotate when 120VAC is applied Defective ATS mechanism motor directly to motor leads. If defective Return to Thomson Power systems using RMA process Check all wiring connections in the ATS A loose control wire connection...
  • Page 59 If LED is on, verify contacts are closing. Defective TSC 900 SCU Engine Start relay/contact If defective Return TSC 900 SCU to Thomson Power Systems using RMA process Engine Start and/or Cooldown timers may be duplicated in both ATS control and Disable timers in either ATS or Engine control panel.

  • Page 60: Replacement Parts

    There are no user serviceable components located on the TSC 900 printed circuit board. If the TSC 900 controller (i.e. SCU or GHC) are deemed to be defective, they must be returned to the Thomson Power Systems Factory for repair or replacement. Please refer to Product Return Policy section of this manual further information on product return procedures required.
  • Page 61 TS 870 Transfer Switch Thomson Power Component Description Comments Systems Part Number Must program set points via TSC 900 SCU Controller TSC900SCUSR software prior to use. Refer to TSC Service Replacement 900 Instruction Manual. Contact Thomson Power Systems TSC 900 GHC Display Service TSC900GHCSR Service Dept.

  • Page 62: Product Return Policy

    Returns only: Email sales@thomsonps.com Warranty replacement/Warranty Repair: Email support@thomsonps.com Upon receipt of your request, Thomson Power Systems will confirm with a copy of our Order Acknowledgement via fax advising the RMA number which should be used to tag the defective controller prior to shipment.

  • Page 63: Notes

    TS 870 Transfer Switch 18. NOTES PM062 REV 11 16/04/19 Thomson Power Systems...

  • Page 64: Performance Test Form

    TS 870 Transfer Switch 19. PERFORMANCE TEST FORM This form should be retained by those in charge of the building electrical installation in order to be available to the authority having jurisdiction. Date Personnel Tests performed Comments Interconnection evaluation Grounding point evaluation...

  • Page 65: Appendix A - Typical Ts 870 Ats Commissioning Procedure

    COMMISSIONING PROCEDURES (S-Style 100A-800A) NOTE: The following commissioning procedures are provided for general information only pertaining to typical site installations and applications. Contact Thomson Power Systems for further information as may be required. A) Pre-Energization Checks 1. Verify the generator and utility supply voltages match the model of the ATS ordered. If a different voltage is required, refer to procedure in Appendix B for voltage change programming procedure.
  • Page 66 9. To allow any changes to the TSC 900 controller settings, A Security Login level of Admin or Power must be entered into the TSC 900 Controller (Refer to TSC 900 O&M Manual or TS 870 Quick Start Guide) for further Security programming details.
  • Page 67 APPENDIX “A” THOMSON POWER SYSTEMS © TYPICAL TS 870 ATS COMMISSIONING PROCEDURES (S-Style 100A-800A) 11. Verify the status of the following indicator lights on the TSC 900 Display Home page: - Utility Source Green light is On - Load on Utility Green light is On 12.
  • Page 68 APPENDIX “A” THOMSON POWER SYSTEMS © TYPICAL TS 870 ATS COMMISSIONING PROCEDURES (S-Style 100A-800A) and transfer on load per Automatic Sequence. The following lights on the TSC 900 Display home page should be on: Generator Start, Generator Source available and Load on Generator Red light.

  • Page 69: Appendix B - Ts 870 System Voltage Change Procedure

    APPENDIX “B” THOMSON POWER SYSTEMS © TS 870 SYSTEM VOLTAGE CHANGE PROCEDURE The system voltage change procedure is a 2 step process 1) ATS Potential Transformer Tap Change and 2) TSC 900 Software Programming. Details of each step are as follows:...
  • Page 70 APPENDIX “B” THOMSON POWER SYSTEMS © TS 870 SYSTEM VOLTAGE CHANGE PROCEDURE Carefully remove the potential transformer high voltage side covers by prying up on the edge of the cover with a ¼” Flat Head Blade screwdriver and lifting off.
  • Page 71 APPENDIX “B” THOMSON POWER SYSTEMS © TS 870 SYSTEM VOLTAGE CHANGE PROCEDURE CAUTION: Brace PT terminal block with your hand when loosening or tightening ANY screws. Remove the screw and red ring terminal connected to the incorrect (existing) PT voltage terminal.
  • Page 72 Login Page will appear. Next from the Security Login Page, Select User Name drop down box and choose (POWER or ADMIN), then type in password, then select “Apply” button. Refer to TSC 900 O&M Manual or TS 870 Quick Start Guide for further Security programming details. NOTE: Initial Factory Default Password is “pass”...
  • Page 73 APPENDIX “B” THOMSON POWER SYSTEMS © TS 870 SYSTEM VOLTAGE CHANGE PROCEDURE Once successfully logged in, From the TSC 900 DISPLAY Home Page, Navigate to the Settings Page below and select System Voltage as shown below. On the System Voltage Row, select the underlined System Voltage value and from the drop down list which appears, select the desired voltage for the application as shown below.

  • Page 75: Appendix C -Seismic Certificate

    APPENDIX “C” THOMSON POWER SYSTEMS © SEISMIC CERTIFICATE 9087A - 198th Street, Langley, BC, Canada V1M 3B1 · Telephone (604) 888-0110 Email: info@thomsonps.com · www.thomsonps.com...
  • Page 77 For Preventative Maintenance or Extended Warranty information contact our Service Department at 604-888-0110 or email support@thomsonps.com PM062 REV11 16/04/19 Thomson Power Systems and Regal are trademarks of Regal Beloit Corporation or one of its affiliated companies. ©2018 Regal Beloit Corporation, All Rights Reserved.

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