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THOMSON marathon TS 910 Series, Owner'S Manual

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THOMSON marathon TS 910 Series Owner'S Manual Download Page 51

TS 910 TRANSFER SWITCH 

 

PM140  REV 0  12/02/09 

45

 

Thomson Technology 

 

18.16. LOAD SHED 

Load Shed operation can be configured to three different settings as follows: 

1.  Disabled 

2.  Basic 

3.  kW Load Management 

The transfer switch is supplied from the factory with the Load shed disabled. Refer to the 

following table for detailed description of load shed operating modes, their application and 

settings required on the TSC 9. 
 

Load Shed 
Feature

Application

Feature Description

TSC 9 CT 
Jumper 
Position

TSC 9 kW 
Settings

Disabled 

(factory default)

Load Shed feature not used for applications 
using Genset & ATS which are sized for 
whole house load

Load Shed Relay & Status LED Indicator are disabled

None

00

Basic

Basic load shed feature used when Genset 
is sized for only partial home load and 
requires automatic control to shed selected 
non-essential load. 
Feature activated when TSC 9 kW setting is 
>00 setting

 - Load Shed Relay & Status LED Indicator are enabled on 
TSC 9 controller
 - Load Shed Relay & LED are activated whenever 
Generator is On Load and resets when load returns to 
utility power
 - Normally Closed contact opens during Load shed 
condition to open control circuit of connected non-essential 
load

None

>00 Setting

kW Load 
Management 

(feature sold 
separately-refer 
to associasted 
instructions for 
furhter details)

kW Load Management Load shed used 
when Genset is sized for only partial home 
load and requires automatic control to shed 
selected non-essential load. Feature 
provides added benefit of maximizing 
available generator capacity where home 
loads vary over time. Requires additional 
Current Transformers

 - Load Shed Relay & Status LED Indicator are enabled on 
TSC 9 Controller
 - Load Shed Relay & LED are controlled via CT input 
signal (refer to kW load Management sequence of 
operation)
 - Normally Closed contact opens during Load shed 
condition to open control circuit of connected non-essential 
load

200A or 400A 

CT Position

(100A Model 

uses 200A CT)

>00 Setting

 to be 95% of 

Gen kW 

rating

 

 

When  Load  shed  operation  is  required,  the  load  shed  output  relay  contact  must  be 

connected  to  control  an  external  non-essential  load.  The  output  contact  is  normally  closed 

and  opens  when  a  load  shed  condition  is  activated.  The  output  contact  is  rated  for  5A, 

240VAC  (resistive)  maximum.  The  output  contact  can  be  directly  connected  to  control 

devices such as air conditioners with thermostat control input.  

Summary of Contents for marathon TS 910 Series

Page 1: ...ley BC Canada V1M 3B1 Telephone 604 888 0110 Telefax 604 888 3381 E Mail info thomsontechnology com www thomsontechnology com TS 910 AUTOMATIC TRANSFER SWITCHES OWNERS MANUAL INSTALLATION OPERATING SERVICE PM140 Rev 0 12 02 09 ...

Page 2: ......

Page 3: ...PTIONAL ACCESSORIES 7 4 3 TYPICAL COMMISSIONING PROCEDURES 7 5 GENERAL THEORY OF OPERATION 8 5 1 AUTOMATIC SEQUENCE OF OPERATION 8 5 2 SERVICE ENTRANCE AUTOMATIC TRANSFER SWITCH OPERATION 8 6 OVER CURRENT PROTECTION 11 6 1 STANDARD TS 910 AUTOMATIC TRANSFER SWITCH 11 6 2 SERVICE ENTRANCE RATED TS 910 AUTOMATIC TRANSFER SWITCH 11 7 GENERAL NOTES ON SERVICING TRANSFER SWITCH MECHANISM 11 8 TRANSFER ...

Page 4: ...SFER SWITCH UPSTREAM CIRCUIT PROTECTIVE DEVICES 23 17 3 200A TRANSFER SWITCH UPSTREAM CIRCUIT PROTECTIVE DEVICES 24 17 4 400A TRANSFER SWITCH UPSTREAM CIRCUIT PROTECTIVE DEVICES 25 17 5 INTERRUPTING CAPACITY CURRENT RATINGS ALL SERVICE ENTRANCE RATED MODELS 25 18 TSC 9 TRANSFER SWITCH CONTROLLER 26 18 1 DESCRIPTION 26 18 2 ELECTROSTATIC DISCHARGE PRECAUTIONS 27 18 3 DIELECTRIC TESTING 27 18 4 TSC ...

Page 5: ... 18 15 TSC 9 CONFIGURATION INSTRUCTIONS 41 18 16 LOAD SHED 45 19 TS 910 SCHEMATIC DIAGRAM 47 20 TROUBLESHOOTING 48 21 REPLACEMENT PARTS 49 22 PRODUCT RETURN POLICY 50 23 NOTES 51 APPENDIX A TYPICAL AUTOMATIC TRANSFER SWITCH COMMISSIONING PRIOCEDURES 52 a Pre Energization Checks 52 b Equipment Energization 53 ...

Page 6: ......

Page 7: ...g procedures are required for correct storage of the transfer switch prior to installation CAUTION Failure to store equipment under the specified environmental conditions may cause equipment damage and void warranty 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...

Page 8: ...lly required standby applications for emergency power systems as defined by the National Electrical Code 3 2 CHECK EQUIPMENT DELIVERY Upon delivery of the transfer switch remove the product packaging and verify the product has not been damaged WARNING Damaged Transfer Switch equipment Do not install or operate the transfer switch if it appears damaged Failure to follow these instructions can resul...

Page 9: ...ansfer switch or c automatic load shedding feature to reduce total load imposed on the generator not to exceed the capacity of the generator The TS 910 transfer switch has automatic load shedding capabilities built in when load shedding control contact is connected Refer to Load Shedding section of this manual for further details 3 4 2 Installation Location The standard TS 910 transfer switch is d...

Page 10: ...tegral over current protection and require upstream over current protection devices for both Utility and Generator sources The standard TS 910 is rated for 100 continuous loading of all load types Refer to Section 17 REQUIREMENTS FOR UPSTREAM CIRCUIT PROTECTIVE DEVICES of this manual for further details 3 4 7 Upstream Overcurrent Protection Service Entrance Rated TS 910 Service Entrance rated TS 9...

Page 11: ...on systems with higher available short circuit current levels than listed under section Withstand Interrupting Current Ratings shown above Failure to follow these instructions can result in death serious injury or equipment damage 3 5 DIELECTRIC TESTING Do not perform any high voltage dielectric testing on the transfer switch with the TSC 9 controller connected into the circuit as serious damage w...

Page 12: ... that are visible though a front panel opening on NEMA 1 rated enclosures For detailed information on the TSC 9 Transfer Switch controller refer to Section 18 of this manual The standard TS 910 series Automatic Transfer Switch is rated for 100 system load and requires upstream over current protection Service Entrance Rated TS 910 Automatic Transfer Switch models are supplied with a utility supply ...

Page 13: ...ted to ATS Load Bus TS910 WMS Wireless Remote Alarm Messaging Module TS910 N3R100A TS910 N3R100B TS910 N3R200A TS910 N3R200B TS910 N3R400A TS910 N3R400B NEMA 3R Door External Door Mountable to NEMA 1 ATS Enclosure Specify matching ATS model number Additional information on TS 910 optional accessories can be obtained from our Website www thomsontechnology com 4 3 TYPICAL COMMISSIONING PROCEDURES CA...

Page 14: ... utility power is restored to above 80 rated voltage on all phases a utility power return sequence will be initiated TRANSFER TO UTILITY The load will transfer from generator to utility power following expiry of the 120 second Utility Return timer provided both generator and utility voltages are in phase at time of transfer LOAD SHED RESET All non essential loads connected to Load Shed control cir...

Page 15: ...3 LOCK OPEN UTILTY SERVICE DISCONNECT BREAKER At the transfer switch OPEN the Utility Service disconnect circuit breaker Attach safety lockout padlock directly onto the Service Disconnect Utility circuit breaker toggle hasp provided to prevent unauthorized change in operating condition NOTE On NEMA 3R rated Transfer Switches A door locking Padlock hasp is also provided in cases where the padlock d...

Page 16: ... transfer switch enclosure door front cover is adequately closed with all provided fasteners 5 2 3 2 CLOSE UITLITY SERVICE DISCONNECT BREAKER To re energize the load remove the padlock s from the Utility Service Disconnect Circuit Breaker and or ATS door and move the circuit breaker to the CLOSED position The Load will be re energized and the transfer switch will remain in the utility supply posit...

Page 17: ...For transfer switches rated 100A through 400A over current protection is non adjustable thermal magnetic type 7 GENERAL NOTES ON SERVICING TRANSFER SWITCH MECHANISM 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...

Page 18: ...M OPERATION The transfer mechanism is a power contactor assembly The transfer switch mechanism has only two possible positions Utility contacts closed or Generator contacts closed There is no neutral position 8 1 AUTOMATIC OPERATION During automatic operation the TSC 9 controller issues pulsed control signals to each of the power contactor solenoids for the utility and generator supply Two solenoi...

Page 19: ...n be used to operate the Transfer Switch manually a Up plug the TSC 9 controller isolation plug J4 to prevent automatic operation b Open ATS enclosure and locate Manual Operation Handle provided with the transfer switch see photos below 100A 200A ATS Handle 400A ATS Handle c Insert manual handles onto the transfer switch mechanism at locations shown in the following diagrams 100A 200A Contactor Me...

Page 20: ...nually operate mechanism to the generator supply position rotate handle downwards Do not over torque handle once position has been attained f Once ATS is manually operated to desired position re install enclosure cover then re energize supply sources to re energize the load ...

Page 21: ...als load line and control for tightness Re torque all bolts nuts and other hardware Clean or replace any contact surfaces which are dirty corroded or pitted 10 4 Transfer switches should be in a clean dry and moderately warm location If signs of moisture are present dry and clean transfer switch If there is corrosion try to clean it off If cleaning is unsuitable replace the corroded parts Should d...

Page 22: ...ogy 10 FRONT INTERIOR VIEW 2 POLE 100A STANDARD ATS NEUTRAL UTILITY SUPPLY L1 L2 GEN SUPPLY TOP LUGS TSC 9 CONTROLLER L1 L2 GROUND LOAD BOTTOM LUGS CUSTOMER CONTROL CONNECTIONS GEN START LOAD SHED ALARM REMOTE TEST TRANSFER MECHANISM ENCLOSURE MOUNTING HOLES TYP 4 ...

Page 23: ...VIEW 2 POLE 100A SERVICE ENTRANCE ATS NEUTRAL UTILITY SUPPLY L1 L2 GEN SUPPLY TOP LUGS TSC 9 CONTROLLER GROUND L1 L2 LOAD BOTTOM LUGS CUSTOMER CONTROL CONNECTIONS GEN START LOAD SHED ALARM REMOTE TEST UTILITY SERVICE DISCONNECT BREAKER TRANSFER MECHANISM ENCLOSURE MOUNTING HOLES TYP 4 ...

Page 24: ...ogy 12 FRONT INTERIOR VIEW 2 POLE 200A STANDARD ATS NEUTRAL UTILITY SUPPLY L1 L2 GEN SUPPLY TOP LUGS TSC 9 CONTROLLER GROUND L1 L2 LOAD BOTTOM LUGS CUSTOMER CONTROL CONNECTIONS GEN START LOAD SHED ALARM REMOTE TEST TRANSFER MECHANISM ENCLOSURE MOUNTING HOLES TYP 4 ...

Page 25: ...VIEW 2 POLE 200A SERVICE ENTRANCE ATS NEUTRAL UTILITY SUPPLY L1 L2 GEN SUPPLY TOP LUGS TSC 9 CONTROLLER GROUND L1 L2 LOAD BOTTOM LUGS CUSTOMER CONTROL CONNECTIONS GEN START LOAD SHED ALARM REMOTE TEST UTILITY SERVICE DISCONNECT BREAKER TRANSFER MECHANISM ENCLOSURE MOUNTING HOLES TYP 4 ...

Page 26: ...ogy 14 FRONT INTERIOR VIEW 2 POLE 400A STANDARD ATS NEUTRAL UTILITY SUPPLY L1 L2 GEN SUPPLY TOP LUGS TSC 9 CONTROLLER GROUND L1 L2 LOAD BOTTOM LUGS CUSTOMER CONTROL CONNECTIONS GEN START LOAD SHED ALARM REMOTE TEST TRANSFER MECHANISM ENCLOSURE MOUNTING HOLES TYP 4 ...

Page 27: ...VIEW 2 POLE 400A SERVICE ENTRANCE ATS NEUTRAL UTILITY SUPPLY L1 L2 GEN SUPPLY TOP LUGS TSC 9 CONTROLLER GROUND L1 L2 LOAD BOTTOM LUGS CUSTOMER CONTROL CONNECTIONS GEN START LOAD SHED ALARM REMOTE TEST UTILITY SERVICE DISCONNECT BREAKER TRANSFER MECHANISM ENCLOSURE MOUNTING HOLES TYP 4 ...

Page 28: ...1 8 24 7 8 11 70 lbs 2 6 250mcm TS912A0400B SE ATS 400A 45 1 8 24 7 8 11 80 lbs 2 6 250mcm 17 REQUIREMENTS FOR UPSTREAM CIRCUIT PROTECTIVE DEVICES 17 1 TRANSFER SWITCH WITHSTAND CURRENT RATINGS WITHSTAND CURRENT RATING AMPS RMS With Upstream Circuit Breaker Protection With Upstream Fuse Protection MODEL MAX VOLTAGE RATED CURRENT A 240V Up to 240V Fuse Type TS912A0100A 240 100 10 000 100 000 T J TS...

Page 29: ...rs MANUFACTURER MANF CATALOG NUMBER RATINGS Eaton Cutler Hammer FCL FB QCHW GB GHB GC GHC GD EHD 100A 240V Eaton Cutler Hammer FDB FD HFD FDC CA CAH 150A 240V Square D FI FC FA FH 100A 240V Square D QOM1 QOM1 VH 125A 240V Square D QOM2 QOM2 VH 225A 240V Square D Q2 Q2 H 175A 240V Square D QB QD QG GJ 250A 240V Siemens CED6 D2 ED4 ED6 HED4 HED6 QP Q2125 QPH QH2125H 125A 240V Siemens QJ2 QJH2 150A 2...

Page 30: ...d by the following upstream circuit breakers MANUFACTURER MANF CATALOG NUMBER RATINGS Eaton Cutler Hammer CSR BWH FD HFD JDB JD HJD 225A 240V Eaton Cutler Hammer JDC 250A 240V Eaton Cutler Hammer DK KD KDB HKD KDC LCL LA 400A 240V Square D Q2 QOM2 QOM2 VH Q2 H 225A 240V Square D KI KA KH KC QB QD QG QJ 250A 240V Square D LE LX LXI LC LI LA LH 400A 240V Siemens FD6 A FXD6 A HFD6 CFD6 250A 240V GE T...

Page 31: ...LX LXI 400A 240V Siemens NJGA HJGA LJGA JXD2 JD6 JXD6 HJD6 HJXD6 HHJD6 HHJXD6 CJD6 SJD6 SHJD6 SCJD6 400A 240V MERLIN GERIN CJ400N CJ400H CJ400L 400A 240V For other circuit breaker types and sizes not listed contact Thomson Technology 17 5 INTERRUPTING CAPACITY CURRENT RATINGS ALL SERVICE ENTRANCE RATED MODELS UTILITY SUPPLY INTERRUPTING CAPACITY CURRENT RATING AMPS RMS GEN SUPPLY WITHSTAND CURRENT...

Page 32: ...iming functions The TSC 9 is factory configured to control all the operational functions and operating status of the automatic transfer switch The TSC 9 controller consists of a printed circuit board PCB which is mounted inside the transfer switch on the left hand side wall of the enclosure A faceplate is provided with graphic label showing status lights and operation pushbuttons which are visible...

Page 33: ... a grounded surface and maintain contact while handling the equipment a grounded wrist strap can should also be utilized Do not touch any components on the printed circuit board with your hands or any other conductive equipment Do not place the equipment on or near materials such as Styrofoam plastic and vinyl Place the equipment on grounded surfaces and only use an anti static bag for transportin...

Page 34: ...ght Diagnostic Active LED light System OK LED Light Wait for Transfer LED Light USB Factory Programming Port Utility Supply Available LED light Load Shed LED light Load on Utility LED light Load on Gen LED light Gen Exercise Mode Pushbutton LED light Test Mode Pushbutton LED light Gen Start LED light Alarm Active LED light ATS Alarm Active LED light System OK LED Light ...

Page 35: ... good Utility voltage freq good Green On Utility Load is not on utility Load is on utility A utility related transfer fault has occurred Red On Generator Load is not on generator Load is on generator A gen related transfer fault has occurred Red Generator Gen voltage freq not good Gen voltage freq good Red Generator Start Generator is not commanded to start run Generator is commanded to start run ...

Page 36: ... BOARD FIGURE 2 Configuration Jumpers J4 Controller Isolation Wiring Plug Current Transformer Plugs KW Load Shed Option Expansion Port Future Customer Interface Control Terminal Block USB Factory Programming Port J6 RS 232 Interface Plug Wi Fi Option KW Adjustment Switches KW Load Shed Option ...

Page 37: ...rol wiring connections are made directly on the TSC 9 Transfer controller A removable plug in clamp screw terminal block is provided at the bottom end of the controller see photo below Terminals are provided for the following control features Refer to wiring diagram shown below for connection numbers Engine Start Stop dry contact output Load Shed dry contact output Alarm Output solid state output ...

Page 38: ...ch Additional information on TS 910 kW Load shed optional accessory can be obtained from our Website www thomsontechnology com 18 6 1 4 Controller Isolation wiring Plug J4 A 20 pin wiring plug is utilized on the TSC 9 controller for connecting all interconnecting wiring to the transfer switch mechanism This plug can be used for disconnecting all control power to the TSC 9 controller for servicing ...

Page 39: ...ogy com 18 6 1 6 Expansion Port The TSC 9 controller provides an expansion port for future use only 18 6 1 7 USB Factory Programming Port A USB port is provided on the front faceplate of the TSC 9 controller It is utilized for factory programming and or service diagnostic use only 18 6 1 8 RS 232 Interface Plug Wi Fi Option A RS 232 port is provided on the printed circuit board of the TSC 9 contro...

Page 40: ...light above pushbutton starts flashing The generator will start and operate off load or ON Load if selected The generator will operate for 30 minutes then will automatically stop Exercise LED will change from flashing to continuously ON indicating exercise clock schedule is enabled The generator will automatically start and exercise in 7 14 or 28 day cycles as selected To cancel Exercise press and...

Page 41: ...r Fail alarm condition is reset On Utility LED Flashes the On Utility LED will begin flashing to indicate that the utility limit switch is not operating correctly The LED will flash until the alarm condition is reset Alarm LED Activated the alarm LED will be activated The LED will not go out until the alarm condition is reset Alarm Output Signal Activated the output signal on customer terminals 5 ...

Page 42: ...ed once the alarm condition is reset 18 8 1 3 Gen Fail to Perform an Exercise Operation Should the generator fail to perform an automatic exercise mode i e fail to start or fail on load an alarm condition will be activated after a 60 second delay This alarm condition will cause the following events to occur Exercise LED Flashes the Exercise LED will begin flashing to indicate that the generator ha...

Page 43: ...will be permitted with the Wait to Transfer alarm still present Wait to Transfer LED Flashes the Wait to Transfer LED will begin flashing to indicate that the transfer switch did not detect an in phase condition for a 5 minute period The LED will flash until the alarm condition is reset Alarm LED Activated the alarm LED will be activated The LED will not go out until the alarm condition is reset A...

Page 44: ...ed via the controller pushbutton at 8 00am on Monday morning the generator will automatically start and operate for 30 minutes then will automatically stop If the TSC 9 controller is programmed for a 7 day schedule the generator will automatically start at 8 00am Monday morning the following week i e 7 days later and run for 30 minutes then stop To change generator start time and day of exercising...

Page 45: ...the load will automatically transfer to the generator supply When the remote contact is opened the load will re transfer back to the utility supply following expiry of the Utility Return delay timer The Engine Cool down time sequence will be initiated when the test mode is terminated NOTE The load will automatically re transfer to the utility supply should the generator fail while on load 18 10 TR...

Page 46: ...is fixed at 70 of system voltage The under voltage pick up set point for both utility and generator supplies is fixed at 80 of system voltage NOTE To override momentary utility under voltage fluctuations the TSC 9 s Engine Start Delay Timer feature is utilized 18 14 TSC 9 GENERATOR FREQUENCY SENSING The TSC 9 controller contains frequency sensing for the generator supply The under frequency settin...

Page 47: ...ctory as per the following table and should not require further setting FUNCTION SETTING FACTORY DEFAULT EXERCISE TEST CYCLE 7 DAY X EXERCISE TEST CYCLE 14 DAY EXERCISE TEST CYCLE 28 DAY EXERCISE LOAD TRANSFER ON LOAD EXERCISE LOAD TRANSFER OFF LOAD X ENGINE START DELAY 3 SEC X ENGINE START DELAY 6 SEC ENGINE START DELAY 10 SEC ENGINE WARMUP TIME 10 SEC X ENGINE WARMUP TIME 30 SEC ENGINE WARMUP TI...

Page 48: ...aced across the 2 pins adjacent to the text on the PCB 240V Only one jumper must be placed on the voltage selection jumpers Failure to do so will cause improper operation When a system voltage is selected the TSC 9 s utility and generator under voltage set point percentage setting will be automatically programmed to correspond to the sensing input voltage e g with a 240V system voltage selected an...

Page 49: ...tory default setting NOTE Should utility power fail during a no load test operation the load will automatically transfer to the generator and will re transfer back when utility power is restored to within normal conditions The engine will continue to run until the 30 minute exercise time delay period expires 18 15 5 ENGINE START DELAY JUMPERS A TSC 9 PCB mounted jumper is provided to configure the...

Page 50: ...s of the Engine Cool down Delay timer 18 15 8 UTILITY RETURN DELAY JUMPERS A TSC 9 PCB mounted jumper is provided to configure the desired Utility Return Delay timer settings Three time settings are provided 10 seconds 60 seconds or 120 seconds A jumper must be placed across the 2 pins adjacent to the desired time as shown on the PCB Refer to Section 18 15 1 for the factory default settings of the...

Page 51: ...osed contact opens during Load shed condition to open control circuit of connected non essential load None 00 Setting kW Load Management feature sold separately refer to associasted instructions for furhter details kW Load Management Load shed used when Genset is sized for only partial home load and requires automatic control to shed selected non essential load Feature provides added benefit of ma...

Page 52: ... have integral control inputs suitably rated AC power contactor panels must be used for interconnection with the Load Shed contact Refer to following typical connection example Additional information on TS 910 kW Load shed optional accessory can be obtained from our Website www thomsontechnology com ...

Page 53: ...TS 910 TRANSFER SWITCH PM140 REV 0 12 02 09 47 Thomson Technology 19 TS 910 SCHEMATIC DIAGRAM ...

Page 54: ...connected Generator set not producing enough voltage frequency or output circuit breaker open TSC 9 has incorrect voltage configuration jumper setting for correct system voltage Warm up time delay function has not timed out yet verify TSC 9 timer setting A loose control connection Defective generator solenoid Defective TSC 9 controller verify output signals with circuit board mounted diagnostic LE...

Page 55: ...mation Transfer Switch Model code e g TS 910A100A Transfer Switch Serial Number e g MW 022345 The above information can be found on the transfer switch equipment rating plate located on the inside of the ATS door Component Description Thomson Technology Part Number TSC 9 Service Replacement Controller Board c w faceplate TSC9SR TSC 9 Graphic Overlay 010985 Limit Switch 1 n o 1 n c all ATS Models 1...

Page 56: ...ase contact Thomson Technology 22 PRODUCT RETURN POLICY Thomson Technology 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 and fax to the appropriate department Returns only Sales Fax 604 888 5606 Warranty replacement Warranty R...

Page 57: ...TS 910 TRANSFER SWITCH PM140 REV 0 12 02 09 51 Thomson Technology 23 NOTES ...

Page 58: ... frayed ends screw are tight no damage etc 8 Ensure TSC 9 Control Isolation Plug J4 is inserted into the TSC 9 Controller prior to operation 9 Verify TSC 9 controller jumpers are set to reflect desired operation 10 Visually verify the transfer switch power contactor is closed in the utility position The upper solenoid plungers will be pulled towards the upper coils refer to photos below 100A 200A ...

Page 59: ...7 Verify at the transfer switch while energized the utility and generator supply voltage phasing and phase rotation is correct 8 Manually stop generator and place the generator controls in the AUTOMATIC position 9 To confirm automatic starting and load transferring of the generator perform the following steps a To test press and hold the T pushbutton on the TSC 9 controller faceplate for 2 seconds...

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