Eaton ATC-900 Operation And Maintenance Manual

Automatic transfer switch, bypass isolation, contactor type, open/closed transition, atc-900 controller, 3000a frame

Hide thumbs Also See for ATC-900:

Operation and maintenance manual (50 pages)

Manual (40 pages)

Instruction booklet (36 pages)

Table of Contents

Quick Links

Need help?

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

Questions and answers

Summary of Contents for Eaton ATC-900

Page 1: Table Of Contents
Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame Instruction Booklet Description Page Introduction ........3 Receiving, Handling, and Storage .
Page 2 Instructional Booklet Page 2 Effective: April 2018 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame WARNING NOTICE READ AND UNDERSTAND THE INSTRUCTIONS CONTAINED HEREIN- A FINAL INSPECTION OF THE EQUIPMENT SHOULD BE PERFORMED AFTER BEFORE ATTEMPTING TO UNPACK, ASSEMBLE, OPERATE, PRIOR TO ENERGIZING THE TRANSFER SWITCH.
Page 3: Introduction
Number (Cat #) is affixed to the top of the shipping container. herein. In no event will Eaton be responsible to the purchaser or Make certain that this information matches other shipping paper user in contract, in tort (including negligence), strict liability or information.
Page 4 2.4.2 Design Configuration plies the load with power from one of these two sources. In the The Eaton transfer switch is a rugged, compact design utilizing event that power is lost from the Source 1 power source, the power contactors to transfer essential loads from one power transfer switch transfers the load to the Source 2 power source.
Page 5 Instructional Booklet Effective: April 2018 Page 5 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame Figure 2. ATS (#1) or Bypass (#2) Shown in Removal Position. BYPASS BYPASS SOURCE 2 SOURCE 1...
Page 6 Instructional Booklet Page 6 Effective: April 2018 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame 2.5 Draw-out Switching Devices WARNING All switching devices are 100% rated (including the neutral), Underwriters Laboratories (UL) 1008 listed, and are built and...
Page 7 The intelligence, represented by the ATC-900 is a microprocessor-based logic package. The contactor is used as the switching device and it is a 3 position type. The continuous current rating of this equipment is 3000A and is applicable up to 600 Vac, 60 Hz.
Page 8 Automatic Operation ered. The transfer switch is controlled by the ATC-900 and is self acting in either Open or Closed Transition. Source 1 Source 1 is the primary source (normal source, normal power Available source, or normal).
Page 9: Equipment Description
Effective: April 2018 Page 9 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame Section 3: Equipment Description The transfer switch shown in Figure 7 is depicted with both con- tactor doors open and the Maintenance slider door also opened.
Page 10 Page 10 Effective: April 2018 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame 3.2 Switching Device (Contactor) 3.2.1 Main Contacts The main contacts connect and disconnect the load to and from The switching device consists of a means for making load, power, the different power sources.
Page 11 Effective: April 2018 Page 11 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame The contactor switching device is electrically closed by momentar- ily (milliseconds) energizing a spring release. The spring is always charged when power is on and takes about 3 seconds to charge.
Page 12 3.3 Line Voltage Selection Panel • For current metering, there is a DCT module available that attaches on to the back of the ATC-900, see Figure 23 The The voltage selection panel consists of multi-tap transformers, DCT also serves as a 24VDC input for backup power to the contained in a steel case mounted in the bottom of the control controller.
Page 13 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame 3.8 Standards Eaton transfer switch equipment is listed for application by UL and CSA. In addition, Eaton Automatic Transfer Switches are listed under Standard UL 1008. This standard covers requirements for...
Page 14: Installation And Wiring
NOTICE equipment. Avoid locations that are moist, hot, or dusty. How- ever, Eaton offers enclosure designs that can be used in special CABLE ENTRY HOLES ARE NOT PART OF THE ENCLOSURE WHEN environments. If there are any doubts as to the suitability of the SHIPPED FROM THE FACTORY AND MUST BE PROVIDED IN THE location, discuss it with your Eaton representative.
Page 15 Effective: April 2018 Page 15 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame 4.5 Power Cable Connections The standard outline for the switch is shown in Figure 18. The normal outline dimensions are 44.00 w x 90 h x 60 d. Figure 20 shows the connections for the Switch.
Page 16 Page 16 Effective: April 2018 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame Proceed with the following steps: Step 1: Verify that the line and load cables comply with applica- ble electrical codes.
Page 17 Instructional Booklet Effective: April 2018 Page 17 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame CAUTION Thermostat IMPROPER POWER CABLE CONNECTIONS CAN CAUSE EXCESSIVE HEAT AND SUBSEQUENT EQUIPMENT FAILURE. ENSURE ALL CON-...
Page 18: Operation Of The Bypass Isolation Transfer Switch
LVD. See the ATC-900 instruction booklet as there are many different scenerios that could be used for any requirement. Figure 23 shows a picture of the ATC-900. The IB for the ATC-900 is included or on-line (IB140012EN.) Note: If one of the contactors is isolated or removed, the unit will be fully automatic in either, including all functions: closed transition, In-Phase, TDN, or Load Voltage Decay.
Page 19 Page 19 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame Figure 23. ATC-900 Controller with the Optional DCT Module Attached. CAUTION POWER CONDUCTORS AND CONTROL WIRING MAY HAVE VOLT- AGE PRESENT THAT CAN CAUSE SEVERE PERSONAL INJURY OR DEATH.
Page 20 Page 20 Effective: April 2018 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame 5.2 Operator Panel The design of this transfer switch allows quick removal of either contactor for inspection or maintenance or, if required, quick replacement.
Page 21 Effective: April 2018 Page 21 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame 5.3 Switching Mechanism (Manual Operation) ated before any close is initiated. Figures 27 & 28 show the indi- cator window whether the switch is open or closed.
Page 22 WARNING As mentioned previously, the contactors in the switch are identi- cal. Each can be in automatic (using the ATC-900), isolated for THE VOLTAGE TO THE STABS IN BACK OF THE TRANSFER SWITCH testing, or the Manual mode operation. Each contactor may be ARE STILL POWERED WHEN THE MIS SWITCH IS USED.
Page 23 Instructional Booklet Effective: April 2018 Page 23 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame 5.6.2 Non-Automatic Operation Slider 1. All doors must be closed and latched. The Door Open light...
Page 24: Draw-Out, Racking-In, And Removal Of Either Contactor
Instructional Booklet Page 24 Effective: April 2018 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame Section 6: Draw-out, Racking-in, and Removal of Either Contactor 6.1 Installing the Contactor Switching Device The contactors are interlocked and removable as shown in Figure 32.
Page 25: Testing And Problem Solving
A simple lamp test can be performed using the lamp test push but- when racking the contactor in or out with power off. The label is a ton switch on the option panel. All lamps (not the ATC-900 reference but not an exact reference.
Page 26 Step 1: The generator engine start controls should be in the OFF position to prevent an undesired start. WARNING Step 2: Ensure that the ATC-900 and PT transformer (Figure 22) have been set to the proper applied system voltage. ONLY PROPERLY TRAINED PERSONNEL, FAMILIAR WITH THE ATS...
Page 27: Maintenance
Instructional Booklet Effective: April 2018 Page 27 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame Section 8: Maintenance 7.4.1 Contactor’s Contact Resistance Contact resistance should not be considered a reliable measure of 8.1 Introduction...
Page 28 (Figures 36 & 37). 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. Reinstall the arc chute, slide the cover forward and tighten the retaining screw. For more infor- mation see section 7.4.1 on contact resistance.
Page 29: Renewal Parts Guide
Instructional Booklet Effective: April 2018 Page 29 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame Section 9: Renewal Parts Guide 9.1 General Refer to Figure 38 for assistance with selecting and ordering selected ATS renewal parts.
Page 30 Instructional Booklet Page 30 Effective: April 2018 Operation and Maintenance Manual, Automatic Transfer Switch, Bypass Isolation, Contactor Type, Open/Closed Transition, ATC-900 Controller, 3000A Frame Replacement Parts List (Continued) FUNCTION / DEVICE PART NUMBER QTY. PER SWITCH DESCRIPTION 66A8206G22 3000A CONT 4P G BYPASS OT...
Page 31: Ats Quick Start Instructions
Step 5: Make sure the Doors are both closed and latched. Using installed per National Electrical Code. The cables must be the ATC-900, apply Utility (Source 1) power. If the sized within the specified cable size range on the side of switch is properly applied for the system voltage ordered, the cable connectors.
Page 32 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 consequential damage or...