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Instructional Booklet

Page

12

Effective: July 2010

ATC-100 Contactor Based Transfer Switch

For more information visit: www.eaton.com

IB01602017E

Power cables are to be connected to solderless screw type lugs 

located on the ATS switching devices.  Refer to the separate Cus-

tomer Wiring Booklet supplied with the ATS equipment for power 

termination.  Verify that the lugs supplied will accommodate the 

power cables being used.  Also verify that the cables comply with 

local electrical codes.  Standard ATS equipment, as supplied from 

the factory, will accommodate the wire sizes shown in Table 4.

Carefully strip the insulation from the power cables to avoid nick-

ing or ringing of the conductor strands.  Prepare the stripped con-

ductor termination end by cleaning it with a wire brush.  If 

aluminum conductors are used, apply an appropriate joint com-

pound to the clean conductor surface area.

Tighten the cable lugs to the torque identified on the label affixed 

to the door of the unit.

4.5  Wiring

Power sources, load conductors, and control wiring should be 

connected to locations as indicated in the Customer Wiring Book-

let supplied with the ATS equipment.

Once the ATS equipment has been installed and wired, perform 

the initial mechanical and electrical procedures as outlined in Sec-

tion 6 to verify that the equipment is installed and operating prop-

erly.

Table 4. Transfer Switch Equipment Wire Size

 

WARNING

IMPROPER POWER CABLE CONNECTIONS CAN CAUSE EXCESSIVE 

HEAT AND SUBSEQUENT EQUIPMENT FAILURE.

 

 

WARNING

POWER CONDUCTORS AND CONTROL WIRING MAY HAVE VOLT-

AGE PRESENT THAT CAN CAUSE SEVERE PERSONAL INJURY OR 

DEATH.  DEENERGIZE ALL POWER OR CONTROL CIRCUIT CONDUC-

TORS BEFORE BEGINNING TO PERFORM ANY WIRING ACTIVITY TO 

OR WITHIN THE ATS EQUIPMENT.

CAUTION

ENSURE THE ATC-100 VOLTAGE IS SET CORRECTLY.  IT SHOULD 

BE THE SAME AS THE UTILITY AND THE GENERATOR LINE VOLT-

AGES.  OPERATING THE EQUIPMENT ON IMPROPER VOLTAGE CAN 

CAUSE EQUIPMENT DAMAGE.

TRANSFER SWITCH AMPERE RATING

WIRE SIZE RANGES

NUMBER OF CABLES PER PHASE

TERMINAL TEMPERATURE RATING °C (°F)

30-100

#14-3/0

1

75 (167)

150

#6-300KCMIL

1

75 (167)

225-300

#3-350KCMIL

1

75 (167)

400

#3-350KCMIL

2

75 (167)

600

#1-500KCMIL

2

75 (167)

800-1200

#3/0-500KCMIL

4

75 (167)

Summary of Contents for ATC-100

Page 1: ...et Description Page 1 Introduction 2 2 Receiving Handling and Storing 6 3 Equipment Description 6 4 Installation and Wiring 10 5 Operation 15 6 Testing and Problem solving 16 7 Adjustments 18 8 Mainte...

Page 2: ...use of existing power facilities or claims against the purchaser or user by its customers resulting from the use of the information and descriptions con tained herein 1 1 2 Safety Precautions All safe...

Page 3: ...wer source and the Generator power source fails while the Utility power source is still unavailable the ATS remains connected to the Generator power source ATSs automatically perform the transfer func...

Page 4: ...ithin its undervolt age underfrequency overfrequency setpoint ranges for the nomi nal voltage and frequency setting Connected Connected is defined as when the input is shorted by an external contact o...

Page 5: ...r 1 2 Position Power Contactor 3 Position Power Contactor C2 C3 POSITION 7 POSITION 8 POSITIONS 9 TO 12 POSITION 13 POSITION 14 POSITION 15 SWITCHING DEVICE ARRANGEMENT NUMBER OF POLES AMPERE RATING V...

Page 6: ...usly mentioned ATS equipment is packaged for forklift movement Protect the equipment from impact at all times and DO NOT double stack Once the equipment is at the installation location and ready to be...

Page 7: ...lay when transferring from the Utility to the Generator power source Timing begins when the Generator becomes available It permits controlled trans fer of the load circuit to the Generator Jumper sele...

Page 8: ...ion Contact This feature provides a contact that indicates if the power switching device is in the Open or Closed position 15E Source 1 Position Indication Contact This feature provides 1 dry form C c...

Page 9: ...ustable thermostat External control power is not required 41A Space Heater with Thermostat 100 Watt This feature provides a 100 watt W space heater with a non adjustable thermostat 3 5 Enclosure The r...

Page 10: ...ed it should be mechanically and electrically checked for proper installation and operation The procedures for these initial mechanical and electrical checks are outlined in Section 6 of this instruct...

Page 11: ...mounting bolts after any required shim ming is completed Figure 8 Typical Mounting of the ATS to a Mounting Surface Step 6 Double check to ensure that all packing and shipping materials have been remo...

Page 12: ...s load conductors and control wiring should be connected to locations as indicated in the Customer Wiring Book let supplied with the ATS equipment Once the ATS equipment has been installed and wired p...

Page 13: ...E PRIOR TO MAKING THE GENERATOR START CONNECTION TO THE SWITCH SET THE ENGINE GENERATOR CONTROLS SELECTOR SWITCH IN THE OFF POSITION TO PREVENT AN UNWANTED GEN ERATOR START CONTROL WIRING SUCH AS THE...

Page 14: ...e terminal block wiring Step 1 Figure 10 shows two tension clamp terminal blocks There is a large one and small one but the operation is the same for both A small tool such as a screwdriver will be pu...

Page 15: ...100 Controller Instruction Booklet IB01602019E if values are above 130 Vac or below 110 Vac 11 Insert the J7 connector into the controller 12 Follow the testing procedure in Section 6 to ensure proper...

Page 16: ...section The frequency of subsequent testing should be based on recom mendations of the Genset manufacturer Use the system test pushbutton to check the electrical operation of the switch 6 1 1 Mechanic...

Page 17: ...ke prior to call ing for assistance Frequently the effort will successfully address most problems encountered The problem solving procedure is presented in the Troubleshooting Guide Table 3 Section 5...

Page 18: ...hazards or potential maintenance problems Inspect the area especially where switching device is installed for any safety hazards including personnel safety and fire hazards Exposure to certain chemic...

Page 19: ...Example To order the transformer pack for an ATC1C2X20400WRU transfer switch order Catalog Number TSTXFP as shown in Figure 14 Figure 14 Typical ATC 100 Controlled Contactor Type ATS ATC 100 Controlle...

Page 20: ...pply NN and Generator or gener ator supply EN Refer to Figure 16 for the location of all parts discussed in this document Load cables MUST be connected and torqued BEFORE installing the SUPPLY cables...

Page 21: ...structional Booklet Effective July 2010 Page 21 ATC 100 Contactor Based Transfer Switch Figure 16 400 A 2 Pole ATS Interior Components NORMAL SOURCE LOAD LUGS NEUTRAL CONNECTIONS MANUAL OPERATING HAND...

Page 22: ...and should be connected to a generator controller NEVER connect directly to a starter solenoid or ignition system See the Genset manufacturer instruction leaflet for recommended wire sizes and locati...

Page 23: ...y Utility power If the switch is properly applied for the system voltage ordered the Utility Available white LED should light Figure 18 Using a voltmeter check for proper system voltage on Utility and...

Page 24: ...est Generator Test TDES timer times out Send Engine Start signal Energize Gen Start relay Is Generator Available TDNE timer times out Sync timer times out Open Utility Switching Device and Close Gener...

Page 25: ...c timer times out Open Generator Switching Device Momentarily energize K1 Sources synchronized before Sync timer times out No Yes and Close Utility Switching Device Utility is powering the load TDEC t...

Page 26: ...ds TDNE Fixed Seconds Time Delay Normal to Emergency 2 or15 seconds 15 seconds TDEN Fixed Minutes Time Delay Emergency to Normal 5 minutes 5 minutes TDEC Fixed Minutes Time Delay Engine Cool off 1 min...

Page 27: ...nerator should start and the ATS should trans fer to the Generator 3 After transfer close the upstream breaker or close the Utility Control Circuit Fused Disconnect The TDEN timer should begin countin...

Page 28: ...Tables UNDERVOLTAGE PICKUP DROPOUT TABLE PERCENTAGE VOLTAGE 120 208 220 230 240 380 415 480 90 108 187 198 207 216 342 374 432 Pickup 80 96 166 176 184 192 304 332 384 Dropout UNDERFREQUENCY PICKUP DR...

Page 29: ...IB01602017E For more information visit www eaton com Instructional Booklet Effective July 2010 Page 29 ATC 100 Contactor Based Transfer Switch Notes...

Page 30: ...Instructional Booklet Page 30 Effective July 2010 ATC 100 Contactor Based Transfer Switch For more information visit www eaton com IB01602017E Notes...

Page 31: ...IB01602017E For more information visit www eaton com Instructional Booklet Effective July 2010 Page 31 ATC 100 Contactor Based Transfer Switch Notes...

Page 32: ...G THE INFORMATION RECOMMENDATIONS AND DESCRIPTIONS CONTAINED HEREIN In no event will Eaton be responsible to the purchaser or user in contract in tort including negligence strict liability or otherwis...

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