Related Manuals for Eaton AGswitch
Summary of Contents for Eaton AGswitch
- Page 1 Cutler-Hammer I.B. ATS-AG03 Instructions for Cutler-Hammer AGswitch Automatic Transfer Switch (30-600 Amperes) Effective July, 2000 Supersedes I.B. ATS-AG02 dated October, 1998...
- Page 3 I.B. ATS-AG03 Page iii TRANSFER SWITCH EQUIPMENT COVERED BY WARNING THIS INSTRUCTION BOOK IS DESIGNED AND TEST- ED TO OPERATE WITHIN ITS NAMEPLATE RAT- INGS. OPERATION OUTSIDE OF THESE RATINGS MAY CAUSE THE EQUIPMENT TO FAIL RESULTING READ AND UNDERSTAND THE INSTRUCTIONS IN DEATH, SERIOUS BODILY INJURY AND/OR CONTAINED HEREINAFTER BEFORE ATTEMPTING PROPERTY DAMAGE.
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Page 4: Table Of Contents
I.B. ATS-AG03 Page iv TABLE OF CONTENTS Page SECTION 1: INTRODUCTION Preliminary Comments and Safety Precautions....................1 1.1.1 Warranty and Liability Information ......................1 1.1.2 Safety Precautions ..........................1 General Information.............................1 1.2.1 Design Configuration ..........................2 Transfer Switch Catalog Number Identification ....................2 SECTION 2: RECEIVING, HANDLING AND STORAGE Receiving................................4 Handling ................................4 Storage ................................4... - Page 5 I.B. ATS-AG03 Page v Page SECTION 6: TESTING AND PROBLEM SOLVING Testing ................................20 6.1.1 Mechanical and/or Electrical Testing....................20 6.1.2 No Voltage Steps ..........................20 6.1.3 Connecting Power Sources ........................20 6.1.4 Operational Checks ..........................21 6.1.5 Alternative Tests...........................21 Problem Solving ..............................21 6.2.1 Transfer Switch Appears Inoperative ....................22 6.2.2 Transfer Switch Continues to Cycle and Transfer Switch will not Stop in Position ......22 6.2.3...
- Page 6 I.B. ATS-AG03 Page vi LIST OF FIGURES Figure Title Page Typical Load Transfer Switch (circuit breaker type) Schematic..............1 Automatic Transfer Switch Equipment with Solid Steel Shield in Place over Power Panel.......2 Typical Power Panel (Unmounted) for 300-600A Models................5 Typical Power Panel for 30-200A Models....................6 Mounted Molded Case Switches with the Transfer Mechanism Removed for Clarity (300-600A Models) ....................6 Microprocessor-based Logic Control Panel....................6...
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Page 7: Section 1: Introduction
ATTEMPTING INSTALLATION, OPERATION OR aspects associated with the installation, application, APPLICATION OF THE EQUIPMENT. IN ADDITION, operation and maintenance of the AGswitch with ratings ONLY QUALIFIED PERSONS SHOULD BE PERMIT- from 30 through 800 amperes. It is provided as a guide TED TO PERFORM ANY WORK ASSOCIATED WITH for authorized and qualified personnel only. -
Page 8: Design Configuration
I.B. ATS-AG03 Page 2 the load is automatically or manually transferred back to the normal power source, again depending upon the type of transfer equipment being used (Figure 1-1). In automatic transfer switch equipment, the switch’s intelligence system initiates the transfer when normal power fails or falls below a preset voltage. - Page 9 Positions 5-6 Basic Switching Device Control Switching Device Orientation Panel Device Automatic Transfer Switch Horizontal AGSwitch Cutler-Hammer Series C Vertical Cutler-Hammer Series C Cutler-Hammer Series C Position 7 Position 8 Positions 9-12 Position 13 Position 14 Position 15 Switching Device...
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Page 10: Section 2: Receiving, Handling And Storage
I.B. ATS-AG03 Page 4 SECTION 2: RECEIVING, HANDLING, AND Once the top packaging is removed from the shipment, the enclosure door can be opened. A plastic bag of doc- STORAGE uments will be found in the enclosure, usually attached to the inside of the door. Important documents, such as 2.1 RECEIVING test reports, wiring diagrams, appropriate instruction leaflets and a warranty registration card, are enclosed... -
Page 11: Section 3: Equipment Description
The transfer mechanism is mounted in front of the molded case switches (Figure 3-1). The AGswitch consists of two basic items interconnect- ed via connector plugs and mounted in an enclosure A solid steel shield attached to the ratchet assembly (Figure 1-2). -
Page 12: Microprocessor Based Logic Panel
I.B. ATS-AG03 Page 6 3.3 MICROPROCESSOR BASED LOGIC PANEL The AGswitch is a microprocessor-based transfer switch logic control package. The hardware and software of the controller contain the intelligence/supervisory cir- cuits that constantly monitor the condition of the power sources. It provides the intelligence necessary for the operation of the transfer switch (Figure 3-4). - Page 13 I.B. ATS-AG03 Page 7 1. Time Delay Normal to Emergency (TDNE) monitor the emergency power source. The microproces- sor prevents transfer from normal power source to the (Standard) emergency power source until the emergency power This option delays the transfer from the normal power source has reached an acceptable operating frequency source to the emergency power source in order to over- and/or voltage.
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Page 14: Enclosure
I.B. ATS-AG03 Page 8 relay is energized only when the emergency power is door hinges, regardless of enclosure size, this ensures available. This option is labeled ERA. proper support of the door and door mounted devices (Figures 3-5 and 4-1). The hinges have removable hinge 23. -
Page 15: Typical Type 3R Enclosure (Door)
I.B. ATS-AG03 Page 9 Figure 3-5 Typical Type 3R Enclosure (Door) Cutler-Hammer automatic transfer switches use specially designed molded case switches as the main power switching contacts. Standard UL1008 for automatic transfer switches lists devices under the reexamination program which only requires a continual physical reex- amination of the components used in the product to ensure consistency with the originally submitted device. -
Page 16: Section 4: Installation And Wiring
I.B. ATS-AG03 Page 10 SECTION 4: INSTALLATION AND WIRING Check to make certain that there are no pipes, wires, or other mounting hazards in the immediate mounting area that could create a problem. 4.1 GENERAL Carefully remove all packing material from the transfer Transfer switches are factory wired and tested. -
Page 17: Dimensions Of Enclosed Automatic Transfer Switch And Approximate Weights
I.B. ATS-AG03 Page 11 FD 30-200A Figure 4-1 DImensions of Enclosed Automatic Transfer Switch and Approximate Weights Effective 7/00... - Page 18 I.B. ATS-AG03 Page 12 Pivot Bolt Normal Power Source Connection Emergency Power Source Connection Transfer Mechanism Load Connections Engine Start Contacts (1 and 2) Figure 4-2 Automatic Transfer Switch Power Panel (100A Model) Effective 7/00...
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Page 19: Load Lug Location
I.B. ATS-AG03 Page 13 With the enclosed transfer switch equipment unpacked With the solid steel shield removed, proceed with the and ready for mounting, proceed with these steps: following steps for bottom feed load termination. Step 1: The transfer switch enclosure door is hinge Step 1: Disconnect the power panel from the rest of the mounted with removable hinge pins. -
Page 20: Power Cable Connections
I.B. ATS-AG03 Page 14 Table 4.1 Bolted Bus Connection Torque Requirements grooves in the back of the power panel and in the mounting bracket that keep the polyester phase barriers in their proper positions. Power Panel Torque Switching Device ft-lb (Nm) Step 7: Turn the load lug assembly 180°... -
Page 21: Wiring
I.B. ATS-AG03 Page 15 Table 4.2 Transfer Switch Equipment Wire Sizes CAUTION Transfer Switch Wire Size Number of Cables Ampere Rating Ranges per Phase USE OF CABLE LUGS NOT DESIGNED FOR THE 30-100 #14-3/0 TRANSFER SWITCH MAY CAUSE HEATING PROB- LEMS. -
Page 22: Engine Start Connection
OFF position to prevent an unwanted engine start. It is important that the TDNC timer (which is stan- dard on the Cutler-Hammer AGswitch) be set for a 5 4.8 ADDITIONAL IMPORTANT INSTALLATION to 10 second delay. This allows the EMF created when... -
Page 23: Section 5: Operation
I.B. ATS-AG03 Page 17 SECTION 5: OPERATION 5.1 GENERAL A transfer switch provides main contacts to connect and disconnect the load to and from the normal and emer- gency power sources (Paragraph 3.2.2). Each transfer mechanism provides the mechanical motion required to open and close the mechanically interlocked main con- tacts (Paragraph 3.2.3). -
Page 24: Manual Operation (30-200A)
I.B. ATS-AG03 Page 18 To manually operate the transfer switch, the operating handle is ratcheted until the desired switch position is indicated on the indicator wheel. The operating handle, no matter what design or type of switch operation, is always electrically "dead" and the indicator wheel free- wheels should a particular switch have a motor and be capable of electrical operation. -
Page 25: Normal Power Source Restoration
I.B. ATS-AG03 Page 19 5.4.2 NORMAL POWER SOURCE RESTORATION • A return to the normal power source begins when the voltage in all phases of a three-phase sensing unit or phase-to-phase in a single sensing unit is restored to a preset value. •... -
Page 26: Section 6: Testing And Problem Solving
I.B. ATS-AG03 Page 20 SECTION 6: TESTING AND PROBLEM 6.1.2 NO VOLTAGE STEPS SOLVING With no voltage available on either power source, pro- ceed as follows: 6.1 TESTING Step 1: Check to make sure that both the normal and emergency power switching devices are in the After the transfer switch equipment is initially installed or OPEN position. -
Page 27: Operational Checks
I.B. ATS-AG03 Page 21 Step 5: Where required, use an accurate voltmeter to 6.2 PROBLEM SOLVING check phase-to-phase and phase-to-neutral voltages present at the transfer switch normal, WARNING emergency, and/or load terminals. 6.1.4 OPERATIONAL CHECKS HAZARDOUS VOLTAGES IN AND AROUND TRANS- Step 1: Check to ensure that the normal switching FER SWITCH EQUIPMENT DURING THE PROBLEM device is in the CLOSED position. -
Page 28: Transfer Switch Appears Inoperative
I.B. ATS-AG03 Page 22 6.2.1 TRANSFER SWITCH APPEARS INOPERATIVE Yes: See step 3. (Display is blank) Check for broken wire to Auxiliary switch. If no broken wires are found, Step 1: Verify that all plugs and sockets are properly replace auxiliary switch. interconnected Step 3: Verify continuity between plug J10-1 and J10-6. - Page 29 I.B. ATS-AG03 Page 23 Yes: Verify 120 Volts AC at plug J1-1 to J1-2 Yes: Replace Motor Without separating any plugs, verify 120 VAC at J6-6 Yes: Troubleshoot wire harness from J6 to J1 Verify continuity between TB1-21 and the neutral assem- bly and repair if required.
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Page 30: General
There are four main groups of functions included in the Both the pickup and dropout values of the sensing func- AGswitch controller. tion and the timing ranges of the time delay functions may be easily changed by following the instructions pro- 7.3.1 VOLTAGE SENSING FUNCTIONS... - Page 31 I.B. ATS-AG03 Page 25 Table 7.8 This Table Serves as a Quick Reference for Finding the Actual Voltage Level that Relates to the Percentage of the Normal System Voltage Std. UV Dropout Std. UV Pickup 100% Effective 7/00...
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Page 32: Section 8: Maintenance
DISCONNECT LINE POWER FROM LOCKING OUT, or discolored components. IF POSSIBLE, THE NEXT HIGHEST DISCONNECT DEVICE. FAILURE TO FOLLOW THIS PROCEDURE Figure 8-1 is the wiring diagram for the AGswitch auto- COULD CAUSE PERSONAL INJURY AND/OR matic transfer switch. Only qualified and experienced DEATH. - Page 33 I.B. ATS-AG03 Page 27 Table 8.1 Periodic Maintenance Procedures Step Action a. Make transfer switch equipment safe for Disconnect line power from equipment being serviced by inspection and/or maintenance. opening next highest disconnect device. Make certain that any accessory control power is switched off by disconnect- ing all control plugs.
- Page 34 I.B. ATS-AG03 Page 28 Effective 7/00...
- Page 36 I.B. ATS-AG03 This instruction booklet is published solely for informa- tion purposes and should not be considered all inclu- sive. If further information is required, you should con- sult Cutler-Hammer. Sale of product shown in this literature is subject to terms and conditions outlined in appropriate Cutler- Hammer selling policies or other contractual agreement between the parties.