Eaton ATC-900 Manual
  1. Manuals
  2. Brands
  3. Eaton Manuals
  4. Switch
  5. ATC-900
  6. Manual

Eaton ATC-900 Manual

Magnum transfer switch
Hide thumbs Also See for ATC-900:
Table of Contents

Advertisement

Quick Links

ATC-900 Magnum Transfer Switch
O & M Manual
Instruction Booklet
Description
Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Receiving, Handling, and Storage . . . . . . . . . . . . . . . . . . . . . . . . . 10
Equipment Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Installation and Wiring . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
Operation . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
Drawout and Fixed Switching Devices . . . . . . . . . . . . . . . . . . . . 24
Testing and Problem Solving . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31
Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33
Renewal Parts Guide . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 35
IB140015EN
Page
4000A Magnum
For more information visit: www.Eaton.com
2000A Magnum

Advertisement

Table of Contents
loading
Need help?

Need help?

Do you have a question about the ATC-900 and is the answer not in the manual?

Questions and answers

Andrew
January 29, 2025

Does The ATC 900 have pre and post transfer capabilities for elevators

0

Related Manuals for Eaton ATC-900

Summary of Contents for Eaton ATC-900

  • Page 1: Table Of Contents

    ATC-900 Magnum Transfer Switch O & M Manual Instruction Booklet Description Page Introduction ......... . . 3 Receiving, Handling, and Storage .
  • Page 2 Instructional Booklet Page 2 Effective: August 2014 ATC-900 Magnum Tranfer Switch O & M Manual WARNING READ AND UNDERSTAND THE INSTRUCTIONS CONTAINED HEREIN- AFTER BEFORE ATTEMPTING TO UNPACK, ASSEMBLE, OPERATE, OR MAINTAIN THIS EQUIPMENT. HAZARDOUS VOLTAGES ARE PRESENT INSIDE TRANSFER SWITCH ENCLOSURES THAT CAN CAUSE DEATH OR SEVERE PERSONAL INJURY.

  • Page 3: Introduction

    (Figure 2). ing the information, recommendations and descriptions contained herein. In no event will Eaton be responsible to the purchaser or In addition, the Eaton closed transition transfer switch may be user in contract, in tort (including negligence), strict liability or...
  • Page 4 (Sections 5 and 7 respectively). 1.2.2 Design Configuration The Eaton transfer switch is a rugged, compact design utilizing power case switches or power case circuit breakers to transfer essential loads from one power source to another. Open transi- tion switching devices are interlocked to prevent both switching devices from being closed at the same time.
  • Page 5 Instructional Booklet Effective: August 2014 Page 5 ATC-900 Magnum Tranfer Switch O & M Manual INCOMING SOURCE 1 SOURCE 1 ISOLATED SOURCE 1 SOURCE 1 BYPASS SOURCE 1 SOURCE 1 POSITION BYPASS LOAD SOURCE 1 AVAILABLE SOURCE 2 SOURCE 2...
  • Page 6 Instructional Booklet Page 6 Effective: August 2014 ATC-900 Magnum Tranfer Switch O & M Manual 1.3 Magnum Fixed and Drawout Switching Devices 1.3.1 General Magnum Switching Device In a typical Magnum automatic transfer switch, the switching device is a Magnum power case switch. The magnum power case switch does not include an overcurrent trip.
  • Page 7 Instructional Booklet Effective: August 2014 Page 7 ATC-900 Magnum Tranfer Switch O & M Manual Figure 9. Drawout Switching Device Fully Extended from the Magnum Transfer Switch. 1.3.3 Magnum Fixed Switching Devices The Magnum fixed type switching device differs from the drawout version in that it has no levering device, primary disconnects, and secondary disconnects.
  • Page 8 Instructional Booklet Page 8 Effective: August 2014 ATC-900 Magnum Tranfer Switch O & M Manual In addition, a fixed switching device does not have a standard fea- ture to hold the switching device in a “trip-free” position. Magnum fixed switching device terminals have holes for making bolted horizontal primary bus connections.
  • Page 9 Instructional Booklet Effective: August 2014 Page 9 ATC-900 Magnum Tranfer Switch O & M Manual Table 3. Transfer Switch Catalog Number Explanation. V 9 MG B 3 3200 X R U Enclosure Type Voltage Position 14 Position 1-2 Amperes S=NEMA 1...

  • Page 10: Receiving, Handling, And Storage

    Record any external and internal damage observed for reporting to the transportation carrier and Eaton, once a thor- ough inspection is completed. All claims should be as specific as possible and include the General Order numbers.
  • Page 11 Instructional Booklet Effective: August 2014 Page 11 ATC-900 Magnum Tranfer Switch O & M Manual The components comprising the three panels are installed in accor- 3.2.1 Main Contacts dance with the specific requirements of the circuit being controlled. The main contacts connect and disconnect the load to and from Each transfer switch is, therefore, tailor-made to a specific applica- the different power sources.
  • Page 12 Instructional Booklet Page 12 Effective: August 2014 ATC-900 Magnum Tranfer Switch O & M Manual tion and the status of the stored energy mechanism. 3.2.4 TRANSFER MECHANISM The transfer switch uses Eaton Magnum power case switching The switching device is closed by energizing a solenoid that devices and power case switches with a stored-energy mecha- releases the spring mechanism.
  • Page 13 Instructional Booklet Effective: August 2014 Page 13 ATC-900 Magnum Tranfer Switch O & M Manual 3.2.5 Drawout Mechanism The drawout mechanism is described in detail in Section 6 (Figure 14). Figure 14. Drawout Mechanism (Closed Transition Shown) 3.3 Voltage Selection Panel 3.3.1 Voltage Selection Connectors (208, 220, 240, 380, 415,...
  • Page 14 The ATC-900 has many features that are available to the user. These features are standard and are available. Appendix A of the ATC-900 IB, has a list of all of the features including any acro- Figure 17. ATC-900. nyms used along with a brief description. The feature numbers corresponds to the internal codes and some of these numbers may 3.5 Neutrals...
  • Page 15 IS NOT required by UL1008. Representative production samples of switches and switching devices used in Eaton ATSs are subjected to a complete test pro- gram identical to the originally submitted devices on an ongoing periodic basis per UL1066. The frequency of such a re-submittal can be as often as every quarter for a low ampere device.

  • Page 16: Installation And Wiring

    Avoid locations that are moist, hot, or dusty. How- THE ENCLOSURE TO PREVENT COMPONENT DAMAGE OR A ever, Eaton offers enclosure designs that can be used in special FUTURE MALFUNCTION. environments. If there are any doubts as to the suitability of the location, discuss it with your Eaton representative.
  • Page 17 Instructional Booklet Effective: August 2014 Page 17 ATC-900 Magnum Tranfer Switch O & M Manual 4.4 Mounting Procedure 4.5 Power Cable Connections NOTICE WARNING CABLE ENTRY HOLES ARE NOT PART OF THE ENCLOSURE WHEN POWER CONDUCTORS MAY HAVE VOLTAGE PRESENT THAT CAN SHIPPED FROM THE FACTORY AND MUST BE PROVIDED IN THE CAUSE SEVERE PERSONAL INJURY OR DEATH.
  • Page 18 Instructional Booklet Page 18 Effective: August 2014 ATC-900 Magnum Tranfer Switch O & M Manual Proceed with the following steps: Step 1: Verify that the line and load cables comply with applica- ble electrical codes. Step 2: Verify that the transfer switch rated current and voltage (see identification plate on the door of the transfer switch) agree with system current and voltage.
  • Page 19 Instructional Booklet Effective: August 2014 Page 19 ATC-900 Magnum Tranfer Switch O & M Manual open the transformer and move the physical tap connectors. The 4.6 Voltage Selection Adjustment (Non-Connector) following is how to change the taps. Certain devices, such as the voltage selection panel, sensing...
  • Page 20 Instructional Booklet Page 20 Effective: August 2014 ATC-900 Magnum Tranfer Switch O & M Manual 4.7 Control Wiring to Magnum Power Case Switch/ 4.8 Wiring Breaker Control connections to the magnum power case switch can be CAUTION made to the terminal blocks mounted above each device. The...
  • Page 21 As shown in the ATC-900 Instruction Booklet, there are 4 in and 4 out available programmable I/Os from the con- troller. These are wired out from the ATC-900 to terminal blocks for easier access. With I/O Modules, there could be up to 20 in and 20 out (Form C) available.

  • Page 22: Operation

    Instructional Booklet Page 22 Effective: August 2014 ATC-900 Magnum Tranfer Switch O & M Manual Section 5: Operation 5.1 General WARNING THE CLOSED TRANSITION PRODUCT CONTAINS A SPECIAL CON- TACT ARRANGEMENT (OVERLAPPING CONTACTS). MISUSE CAN RESULT IN DEATH, SEVERE PERSONAL INJURY, AND/OR PROPERTY DAMAGE.
  • Page 23 Instructional Booklet Effective: August 2014 Page 23 ATC-900 Magnum Tranfer Switch O & M Manual WARNING WARNING Attempting to close both OVERLAPPING CONTACTS switching devices simultaneously SOURCE 1 AND SOURCE 2 can cause severe injury must be Synchronized or death.

  • Page 24: Drawout And Fixed Switching Devices

    Instructional Booklet Page 24 Effective: August 2014 ATC-900 Magnum Tranfer Switch O & M Manual Carefully lower the switching device onto the extended rails. Be Section 6: Drawout and Fixed Switching certain that the switching device’s four molded drawout rail sup-...
  • Page 25 Instructional Booklet Effective: August 2014 Page 25 ATC-900 Magnum Tranfer Switch O & M Manual Figure 30. Switching Device in the CONNECT Position. Figure 31. Switching Device in the TEST Position. Figure 32. Switching Device in the DISCONNECT Position. IB140015EN...
  • Page 26 Instructional Booklet Page 26 Effective: August 2014 ATC-900 Magnum Tranfer Switch O & M Manual NOTICE THE SWITCHING DEVICE CAN BE LEVERED WITH THE COMPART- MENT DOOR OPEN OR CLOSED, BUT IT IS ADVISABLE TO CLOSE THE DOOR PRIOR TO LEVERING.

  • Page 27: Operation Of The Bypass Isolation Transfer Switch

    Source 1position is energized, that is, the Source 1 switching device in the automatic transfer switch is closed. 4. RED LED on the ATC-900 Controller to indicate if the Source 2 position is energized, that is, the Source 2 switching device in the automatic transfer switch is closed.
  • Page 28 2. Close the Source 1 bypass switch manually. The Source 1 bypass RED light will illuminate. 3. Remove J7 Plug from ATC-900 controller. The switch may contain a Maintenance switch (9B) or a Test switch (6H) and in these cases removal of the J7 power connector is not nec- essary.
  • Page 29 Instructional Booklet Effective: August 2014 Page 29 ATC-900 Magnum Tranfer Switch O & M Manual Place Generator In OFF Position Cutler-Hammer Cutler-Hammer Operatio Operatio Cutler-Hammer Digitrip 3000 Cutler-Hammer Digitrip 3000 Operational High Operational High Digitrip 3000 Digitrip 3000 Time Overcurrent...
  • Page 30 8. Reconnect J7 plug back onto the ATC-900 controller. 10. Move the generator selector switch to the AUTO position. 11. The Source 2 Switching device is now back in automatic 9.

  • Page 31: Testing And Problem Solving

    SWITCH IS PROVIDED, ALWAYS RETURN THE SWITCH TO THE 8. Reconnect J7 plug back onto the ATC-900 controller. AUTO POSITION AFTER THE TEST IS COMPLETE. 9. Open the Source 1 bypass switching device. The Source 1 bypass BLUE light will no longer be illuminated.
  • Page 32 Instructional Booklet Page 32 Effective: August 2014 ATC-900 Magnum Tranfer Switch O & M Manual If a problem persists after having completed the problem solving Step 3: Is the Source 2 switch OPEN? procedure, contact an Eaton representative for further assistance.

  • Page 33: Maintenance

    The arc chute can then be lifted out of the molded case and the contacts can be inspected. Contact Eaton Care (1-877-ETN-CARE, Option-2, Option-4, Option-3) if the contacts have excessive wear. Rein- stall the arc chute, slide the cover forward and tighten the retaining screw.
  • Page 34 Instructional Booklet Page 34 Effective: August 2014 ATC-900 Magnum Tranfer Switch O & M Manual 9.3 Cover Removal and Replacement Many of the maintenance procedures outlined in Table 6 require the removal and replacement of side and rear covers. For all NEMA 1 and NEMA 3R enclosed transfer switches, see Section 9.3.1 for cover removal and replacement instructions.

  • Page 35: Renewal Parts Guide

    Instructional Booklet Effective: August 2014 Page 35 ATC-900 Magnum Tranfer Switch O & M Manual Section 10: Renewal Parts Guide 10.1 General Refer to Figure 43 through 45 for assistance with selecting and ordering selected ATS renewal parts. The replacement controller needs to match the originally supplied features.
  • Page 36 Instructional Booklet Page 36 Effective: August 2014 ATC-900 Magnum Tranfer Switch O & M Manual SENSING HARNESS 68C8190G02 4/0 to 500 KCMIL NEUTRAL TERMINAL (AL) D2247A22T 500 to 750 KCMIL NEUTRAL (AL) D2246A22T 3/0 to 750 KCMIL LUGS (AL) 5081A01H01 Figure 45.
  • Page 37 Instructional Booklet Effective: August 2014 Page 37 ATC-900 Magnum Tranfer Switch O & M Manual Notes: IB140015EN For more information visit: www.Eaton.com...
  • Page 38 Instructional Booklet Page 38 Effective: August 2014 ATC-900 Magnum Tranfer Switch O & M Manual Notes: For more information visit: www.Eaton.com IB140015EN...
  • Page 39 Instructional Booklet Effective: August 2014 Page 39 ATC-900 Magnum Tranfer Switch O & M Manual Notes: IB140015EN For more information visit: www.Eaton.com...
  • Page 40 DEALING OR USAGE OF TRADE, ARE MADE REGARDING 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 otherwise for any special, indirect, incidental or conse-...

Table of Contents