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Regal Thomson Power Systems TS 880 Installation, Operating & Service Manual

Automatic transfer switch with tsc 7320 controller
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TS 880
AUTOMATIC TRANSFER SWITCH
WITH TSC 7320 CONTROLLER
INSTALLATION, OPERATING & SERVICE
MANUAL
4916 - 275th Street, Langley, BC, Canada V4W 0A3 · Telephone (604) 888-0110
Email: info@thomsonps.com · www.thomsonps.com
PM178 Rev 0
23/02/20

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  • Page 1 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 (604) 888-0110 Email: info@thomsonps.com · www.thomsonps.com...

  • Page 2: Table Of Contents

    TS 880 Transfer Switch PRODUCT REVISION HISTORY EQUIPMENT STORAGE 2.1. ENVIRONMENTAL CONDITIONS NOTES TO INSTALLER 3.1. UPSTREAM CIRCUIT PROTECTIVE DEVICES/ELECTRICAL CONNECTIONS 3.2. TRANSFER SWITCHES WITH INTEGRAL OVER CURRENT PROTECTION 3.3. TRANSFER SWITCHES WITH MULTI-TAP VOLTAGE CAPABILITY 3.4. REMOTE START CONTACT FIELD WIRING 3.5.
  • Page 3 TS 880 Transfer Switch 11.1. WITHSTAND CURRENT RATINGS (STANDARD 3 CYCLE MODELS) 11.2. INTERRUPTING CAPACITY CURRENT RATINGS (STANDARD 3 CYCLE MODELS) 11.3. WITHSTAND CURRENT RATINGS (30 CYCLE MODELS) 11.4. INTERRUPTING CAPACITY CURRENT RATINGS (30 CYCLE MODELS) 12. GROUND FAULT SITE TEST REQUIREMENTS 12.1.

  • Page 4: Product Revision History

    TS 880 Transfer Switch 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.

  • Page 5: Notes To Installer

    TS 880 Transfer Switch 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. NOTES TO INSTALLER DANGER Arc Flash and Shock Hazard.

  • Page 6: Transfer Switches With Multi-Tap Voltage Capability

    TS 880 Transfer Switch 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.

  • Page 7: Dielectric Testing

    TS 880 Transfer Switch 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.
  • Page 8 TS 880 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. 3.
  • Page 9 TS 880 Transfer Switch 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.
  • Page 10 TS 880 Transfer Switch 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”...

  • Page 11: Product Model Code

    TS 880 Transfer Switch 3.7. PRODUCT MODEL CODE The type of TS 880 series transfer switch supplied is identified by way of a 21-digit product code which appears on the equipment rating plate, or Model, on the door of the transfer switch, and on the transfer switch drawings.

  • Page 12: Automatic Sequence Of Operation

    TS 880 Transfer Switch TYPICAL COMMISSIONING PROCEDURES CAUTION Commissioning procedures must be performed by qualified personnel only. Ensure the Automatic Transfer Switch (ATS) ATS Power Chassis & Voltage Sensing Isolation Plugs PL12 & PL15 are disconnected prior to energizing the supply sources. Manually place the transfer switch mechanism in the neutral position prior to applying power.

  • Page 13: Standard Ats - Closed Transition

    TS 880 Transfer Switch mechanism. The load will then retransfer the load from the generator supply back to the utility supply. 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 14 TS 880 Transfer Switch 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. For closed transition type transfer switches, which utilize extended parallel operation for soft-loading operating sequences, refer to separate instruction manual.
  • Page 15 TS 880 Transfer Switch 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. 2. Synchronizing Protection: To ensure both sources are in synchronism prior to initiating a closed transition transfer sequence, a TSC 7320 in-phase monitor is used.
  • Page 16 TS 880 Transfer Switch 4. Closed Transition Failure Mode Operation: The TSC 7320 continually monitors the closed transition operation time period. The TSC 7320 is factory set for 100 milliseconds that allows normal closed transition operation (i.e. both power switching devices remain closed for less than 100 milliseconds). The alarm circuit is not activated under normal operation.

  • Page 17: Service Entrance Ats

    TS 880 Transfer Switch 4.3. SERVICE ENTRANCE ATS NOTE: This applies only to service entrance transfer switches 4.3.1. NORMAL OPERATION Under normal conditions, the load is energized from the utility supply through the closed utility transfer power switching device. If the utility power fails, the generator will start and the load will be re-energized via the closed generator transfer power switching device.
  • Page 18 TS 880 Transfer Switch switch door is locked closed. If the door is not locked, turn and remove door key. WARNING Close and lock the transfer switch enclosure door before connecting power sources. e. To re-energize the load, remove the padlock(s) from the service disconnect control switch, and move the switch to the Energized position.
  • Page 19 TS 880 Transfer Switch c) 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 ATS Power Chassis & Voltage Sensing circuits, remove the isolation plugs PL12 and PL15.

  • Page 20: Test Modes

    TS 880 Transfer Switch 4.4. TEST MODES The transfer switch may be tested utilizing the TSC 7320 front panel buttons or remote power fail test input. A simulated utility power failure condition will be activated when the test mode is selected. The transfer switch will operate as per a normal utility power fail condition. The transfer switch will remain on generator supply until the test mode is terminated.

  • Page 21: Over Current Protection

    TS 880 Transfer Switch OVER CURRENT PROTECTION Thomson Power Systems TS 880 series of Automatic Transfer Switches may be supplied with or without integral over current protection as described below: 5.1. STANDARD TS 880 AUTOMATIC TRANSFER SWITCH The standard TS 880 Automatic Transfer Switch does not contain any integral over current protection and requires upstream over current protection devices for both Utility and Generator sources.

  • Page 22: Servicing Transfer Switch Mechanisms

    TS 880 Transfer Switch 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 23 TS 880 Transfer Switch tripping of the power switching devices that incorporate integral over current protection units • All insulating devices are in place and in good condition • No moisture or other contamination is present • Electrical conductors are adequately secured away from moving parts To maintain operational integrity, ensure that: •...

  • Page 24: Transfer Switch Mechanism Operation

    TS 880 Transfer Switch TRANSFER SWITCH MECHANISM OPERATION 7.1. GENERAL DESCRIPTION 800A-4000A transfer switches consist of two insulated case, electrically operated power switching units mounted in a vertical stack configuration. Standard transfer switches have insulated case power switching devices, which are fix-mounted. Draw-out type power switching devices are available as an option for additional service and maintenance benefits.

  • Page 25: Manual Operation

    TS 880 Transfer Switch MANUAL OPERATION The Transfer Switch can be operated manually using electrically operated push buttons located at the face of the TSC 7320 controller or mechanical operated pushbuttons located at the front of each power switching devices. DANGER Arc Flash and Shock Hazard.
  • Page 26 TS 880 Transfer Switch TRANSFER TO GENERATOR: Transfer power from utility to generator supply in manual mode. 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.
  • Page 27 TS 880 Transfer Switch is displayed. Refer to Diagrams #1 & 2 below and the power switching device’s manual for further information. NOTE: The yellow OK Flag indicates the power switching device is charged however it may not be ready to close if the transfer switch mechanical or electrical interlocks are not satisfied.
  • Page 28 TS 880 Transfer Switch MANUAL TRANSFER TO GENERATOR SUPPLY VIA MECHANICALLY OPERATED POWER SWITCHING DEVICES PUSH BUTTONS (Open Transition) To transfer manually to generator supply, follow procedure listed below; Disconnect the ATS Power Chassis & Voltage Sensing Isolation Plugs (PL12 &...
  • Page 29 TS 880 Transfer Switch NOTE If the Transfer Switch is supplied with Closed Transition Transfer feature, the mechanical close pushbutton on the face of the power switching unit is pad locked and not available for use. Transfer to Generator and Transfer to Utility pushbutton located on the face of the TSC 7320 controller is used for manual closing.
  • Page 30 TS 880 Transfer Switch NOTE If the Transfer Switch is supplied with Closed Transition Transfer feature, the mechanical close pushbutton on the face of the power switching unit is pad locked and not available for use. Transfer to Generator and Transfer to Utility pushbutton located on the face of the TSC 7320 controller is used for manual closing.
  • Page 31 TS 880 Transfer Switch DIAGRAM #1 - MASTERPACT PM178 REV 0 23/02/20 Thomson Power Systems...
  • Page 32 TS 880 Transfer Switch DIAGRAM #2 – EMAX2 PM178 REV 0 23/02/20 Thomson Power Systems...

  • Page 33: Front View (Typical) Insulated Case Type Transfer Mechanism

    TS 880 Transfer Switch FRONT VIEW (TYPICAL) INSULATED CASE TYPE TRANSFER MECHANISM MASTERPACT - TYPICAL, 3P, 800 - 4000A PM178 REV 0 23/02/20 Thomson Power Systems...
  • Page 34 TS 880 Transfer Switch EMAX2 - TYPICAL, 3P, 1600 - 4000A PM178 REV 0 23/02/20 Thomson Power Systems...

  • Page 35: Cable Terminal Information

    TS 880 Transfer Switch CABLE TERMINAL INFORMATION CONNECTION TIGHTNESS TERMINAL RATING (In-lbs) BASIC MODEL TERMINAL CABLE RANGE PER PHASE MOUNTING SCREW CLAMP TS88xA- #2–600mcm 800/4000 Required 1. With insulated case power switching units 2. For other model types not shown, contact Thomson Power Systems for further information. PM178 REV 0 23/02/20 Thomson Power Systems...

  • Page 36: Requirements For Upstream Circuit Protective Devices

    TS 880 Transfer Switch REQUIREMENTS FOR UPSTREAM CIRCUIT PROTECTIVE DEVICES 11.1. WITHSTAND CURRENT RATINGS (STANDARD 3 CYCLE MODELS) (All 3 Cycle Models Without Integral Overcurrent Protection Option) WITHSTAND CURRENT RATING AMPS (RMS) RATED MAX. BASIC MODEL TYPE CURRENT VOLTAGE @240V @480V @600V TS88xA-0800...

  • Page 37: Interrupting Capacity Current Ratings (Standard 3 Cycle Models)

    TS 880 Transfer Switch 11.2. INTERRUPTING CAPACITY CURRENT RATINGS (STANDARD 3 CYCLE MODELS) (All 3 Cycle Models With Integral Overcurrent Protection Option) INTERRUPTING CAPACITY CURRENT RATING AMPS (RMS) BASIC MODEL RATED TYPE MAX. CURRENT VOLTAGE No Upstream Overcurrent Protection Required @240V @480V @600V...

  • Page 38: Withstand Current Ratings (30 Cycle Models)

    TS 880 Transfer Switch 11.3. WITHSTAND CURRENT RATINGS (30 CYCLE MODELS) (All 30 Cycle Models Without Integral Overcurrent Protection Option) 3 CYCLE / 30 CYCLE WITHSTAND CURRENT RATING AMPS (RMS) RATED MAX. BASIC MODEL TYPE CURRENT VOLTAGE @240V @480V @600V 65,000 65,000 65,000...

  • Page 39: Interrupting Capacity Current Ratings (30 Cycle Models)

    TS 880 Transfer Switch 11.4. INTERRUPTING CAPACITY CURRENT RATINGS (30 CYCLE MODELS) (All 30 Cycle Models With Integral Overcurrent Protection Option) INTERRUPTING CAPACITY CURRENT RATING AMPS (RMS) No Upstream Overcurrent Protection Required RATED MAX. BASIC MODEL CURRENT TYPE VOLTAGE 30 CYCLE 3 CYCLE RATING RATING @240V...

  • Page 40: Ground Fault Site Test Requirements

    TS 880 Transfer Switch GROUND FAULT SITE TEST REQUIREMENTS Per NEC and UL 1008, a ground fault protected system shall be performance tested when first installed on site. A written record of this shall be made and be available to the authority having jurisdiction.
  • Page 41 TS 880 Transfer Switch MALFUNCTIONS PROBABLE CAUSES CORRECTIVE ACTIONS Utility Return Time (mains transient) delay Verify TSC 7320 time delay setting period in TSC 7320 has not yet expired. A Load Test mode has been activated Check TSC 7320 load test LED status indicators locally or remotely Check TSC 7320 status screen for Exercise Test is An Exercise Test mode has been activated...
  • Page 42 TS 880 Transfer Switch On Service Entrance Rated ATS, Service Disconnect switch is in the “De-Energized” Switch to the Energized position or “Transfer to Neutral” positions. On Service Entrance Rated ATS, Utility Switch Utility Voltage Disconnect switch to the “On” Voltage Disconnect switch inside ATS is position switched to “Off”...
  • Page 43 TS 880 Transfer Switch Verify correct nominal levels the generator should be operating at and compare to TSC 7320 Settings for Generator supply is not operating at correct under/over voltage, voltage phase balance and voltage or frequency levels. under/over frequency Re-Program TSC 7320 with correct settings as TSC 7320 has incorrect generator voltage required for voltage or frequency.
  • Page 44 TS 880 Transfer Switch Check TSC 7320 status screen for Exercise Test is An Exercise Test mode has been activated by the TSC 7320 scheduler active Verify correct nominal levels the utility source should be operating at and compare to TSC 7320 settings for Utility supply is not operating at correct under/over voltage, voltage phase balance and voltage or frequency levels.
  • Page 45 TS 880 Transfer Switch Verify TSC 7320 has 24VDC control power applied to the battery power input (1,2), then press and hold the lamp test button, and ensure all 12 LED lights on the front panel light up Defective TS 7320 controller TS 7320 Display is not showing any system information If defective, return to Thomson Power systems using...

  • Page 46: Power Switching Device Troubleshooting

    TS 880 Transfer Switch POWER SWITCHING DEVICE TROUBLESHOOTING MALFUNCTIONS PROBABLE CAUSES CORRECTIVE ACTIONS Open pushbutton locked Remove the locking The power switching device cannot be opened locally Faulty mechanism or main circuits Contact Thomson Power Systems Service bonded Department Clear the fault. Check power switching Power switching device closing on device condition before putting back into short-circuit.
  • Page 47 TS 880 Transfer Switch MALFUNCTIONS PROBABLE CAUSES CORRECTIVE ACTIONS It is impossible to insert the There is a padlock or a key-lock racking handle to connect or for connected or disconnected Remove disabling. to disconnect the power position. There is a racking switching device interlock.

  • Page 48: Power Switching Device Details

    TS 880 Transfer Switch POWER SWITCHING DEVICE DETAILS MASTERPACT – BREAKER DIAGRAM PM178 REV 0 23/02/20 Thomson Power Systems...
  • Page 49 TS 880 Transfer Switch MASTERPACT – DRAWOUT CHASIS DIAGRAM PM178 REV 0 23/02/20 Thomson Power Systems...
  • Page 50 TS 880 Transfer Switch EMAX2 – BREAKER DIAGRAM PM178 REV 0 23/02/20 Thomson Power Systems...
  • Page 51 TS 880 Transfer Switch EMAX2 – RATING PLATE DETAILS PM178 REV 0 23/02/20 Thomson Power Systems...

  • Page 52: Power Switching Device Electrical Diagrams

    TS 880 Transfer Switch POWER SWITCHING DEVICE ELECTRICAL DIAGRAMS MASTERPACT Fixed and Drawout Devices PM178 REV 0 23/02/20 Thomson Power Systems...
  • Page 53 TS 880 Transfer Switch PM178 REV 0 23/02/20 Thomson Power Systems...
  • Page 54 TS 880 Transfer Switch EMAX2 PM178 REV 0 23/02/20 Thomson Power Systems...
  • Page 55 TS 880 Transfer Switch Fixed and Drawout Devices PM178 REV 0 23/02/20 Thomson Power Systems...
  • Page 56 TS 880 Transfer Switch PM178 REV 0 23/02/20 Thomson Power Systems...
  • Page 57 TS 880 Transfer Switch PM178 REV 0 23/02/20 Thomson Power Systems...
  • Page 58 TS 880 Transfer Switch PM178 REV 0 23/02/20 Thomson Power Systems...
  • Page 59 TS 880 Transfer Switch PM178 REV 0 23/02/20 Thomson Power Systems...

  • Page 60: Replacement Parts

    TS 880 Transfer Switch REPLACEMENT PARTS Replacement parts are available for the transfer switch as follows: NOTE When ordering replacement parts please provide the following information: -Transfer Switch Model Code (e.g. TS 883AA2000AS) -Transfer Switch Serial Number (e.g. W-022345) The above information can be found on the transfer switch rating plate located on the outside of the ATS door.

  • Page 61: Product Return Policy

    TS 880 Transfer Switch PRODUCT RETURN POLICY Thomson Power Systems uses a Return Material Authorization (RMA) process. Please complete the Return Authorization Request Form (available on our web page) for return of goods, warranty replacement/repair of defective parts, or credit consideration. Returns only: Email sales@thomsonps.com Warranty replacement/repair: Email support@thomsonps.com.

  • Page 62: Notes

    TS 880 Transfer Switch NOTES PM178 REV 0 23/02/20 Thomson Power Systems...

  • Page 63: Performance Test Form

    TS 880 Transfer Switch 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 Fault current test: Ground fault settings - ______________________________...

  • Page 65: Appendix A - Typical Ts 880 Ats Commissioning Procedure

    APPENDIX “A” TYPICAL TS 880 ATS COMMISSIONING PROCEDURES (OPEN TRANSITION) 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.
  • Page 66 APPENDIX “A” TYPICAL TS 880 ATS COMMISSIONING PROCEDURES (OPEN TRANSITION) 12. Close ATS enclosure door and tighten all door screws. 13. Visually verify on the transfer switch enclosure that there are no gaps, holes, or potential for water ingress. B) Equipment Energization DANGER HAZARD OF ELECTRICAL SHOCK, EXPLOSION, OR ARC FLASH This equipment must be serviced only by qualified electrical personnel utilizing safe...
  • Page 67 APPENDIX “A” TYPICAL TS 880 ATS COMMISSIONING PROCEDURES (OPEN TRANSITION) 17. To perform any changes to the TSC 7320 controller settings, refer to PM180 TSC 7320 controller O&M manual for details. 18. Set the TSC 7320 Internal time clock – With the TSC 7320 powered on, Enter the restricted area of the settings, and find the page with the “Display”...
  • Page 68 APPENDIX “A” TYPICAL TS 880 ATS COMMISSIONING PROCEDURES (OPEN TRANSITION) NOTE On 3 Phase Systems, the TSC 7320 ATS controller has Phase Rotation miss-match protection. For the ATS to successfully transfer between sources, both the Utility and Generator Source Phase rotation must be matched. Phase rotation on both sources can be either positive rotation (i.e.

  • Page 69: Appendix B - Ts 880 System Voltage Change Procedure

    APPENDIX “B” THOMSON POWER SYSTEMS © TS 880 SYSTEM VOLTAGE CHANGE PROCEDURE The system voltage change procedure is a 2 step process 1) ATS Potential Transformer Tap Change and 2) TSC 7320 Software Programming. Details of each step are as follows: A) ATS Potential Transformer Tap Change DANGER HAZARD OF ELECTRICAL SHOCK, EXPLOSION, OR ARC FLASH...
  • Page 70 APPENDIX “B” THOMSON POWER SYSTEMS © TS 880 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. NOTE: You can also use your finger to pry up on the edge of the PT cover.
  • Page 71 APPENDIX “B” THOMSON POWER SYSTEMS © TS 880 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. Install the screw and red ring terminal to the new selected PT Tap Terminal based on required voltage and tighten while supporting the terminal block.
  • Page 72 APPENDIX “B” THOMSON POWER SYSTEMS © TS 880 SYSTEM VOLTAGE CHANGE PROCEDURE B) TSC 7320 Voltage Change Procedure To change system voltage on the TSC 7320 controller, the transfer switch can be energized or de- energized to change the system voltage. If the transfer switch is energized, please ensure the mechanism is in the utility position, and place the controller in “Stop”...
  • Page 73 APPENDIX “B” THOMSON POWER SYSTEMS © TS 880 SYSTEM VOLTAGE CHANGE PROCEDURE 3. Choosing voltage configuration: There are 5 separate inputs that dictate the different configurations, and they are listed in the table below. Select one of the options below based on the ATS requirements.
  • Page 74 APPENDIX “B” THOMSON POWER SYSTEMS © TS 880 SYSTEM VOLTAGE CHANGE PROCEDURE 6. Complete: The voltage change procedure is now complete. If the voltage settings need to be adjusted from their default values, please refer to PM180 TSC 7320 controller O&M manual for details on entering the restricted area of the settings, and how to change values.
  • Page 76 For Preventative Maintenance or Extended Warranty information contact our Service Department at 604-888-0110 or email support@thomsonps.com PM178 REV 0 23/02/20 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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