Digitrip Retrofit System For Allis-Chalmers LA-1600 F .
Instruction Leaflet IL 33-A4C-2Effective July 2010Supersedes IL 33-A4C-1 Dated 10/02Digitrip Retrofit System for Allis-ChalmersLA-1600 F Fused Breakers
Instruction Leaflet IL 33-A4C-2Effective July 2010 WARNINGPOWER CIRCUIT BREAKERS ARE EQUIPPED WITH HIGH SPEED, HIGHENERGY OPERATING MECHANISMS. THE BREAKERS AND THEIRENCLOSURES ARE SIGNED WITH SEVERAL BUILT-IN INTERLOCKS ANDSAFETY FEATURES INTENDED TO PROVIDE SAFE AND PROPER OPERATINGSEQUENCES. TO PROVIDE MAXIMUM PROTECTION FOR PERSONNELASSOCIATED WITH THE INSTALLATION, OPERATION, AND MAINTENANCEOF THESE BREAKERS, THE FOLLOWING PRACTICES MUST BE FOLLOWED.FAILURE TO FOLLOW THESE PRACTICES MAY RESULT IN DEATH,PERSONAL INJURY, OR PROPERTY DAMAGE.Safety Precautions Periodic testing of this device is required (see Step 13 Testing theBreaker for test procedures). Only qualified persons, as defined in the National Electric Code,who are familiar with the installation and maintenance of powercircuit breakers and their associated switchgear assembliesshould perform any work associated with these breakers. Completely read and understand all instructions before attemptingany installation, operation, maintenance, or modification of thesebreakers. Always turn off and lock out the power source feeding thebreaker prior to attempting any installation, maintenance, or modification of the breaker. Do not use the circuit breaker as the solemeans for isolating a high voltage circuit. Follow all lockout andtagging rules of the National Electric Code and all other applicablecodes, regulations, and work rules. Do not work on a closed breaker or a breaker with the closingsprings charged. Trip (open) the breaker and be sure the storedenergy springs are discharged before performing any work. Thebreaker may trip open or the charging springs may discharge,causing crushing or cutting injuries. For drawout breakers, trip (open), and then remove the breaker toa well-lit work area before beginning work. Do not perform any maintenance: including breaker charging, closing, tripping, or any other function which could cause significantmovement of the breaker while it is on the extension rails. Doingso may cause the breaker to slip from the rails and fall, potentiallycausing severe personal injury to those in the vicinity. Do not leave the breaker in an intermediate position in the switchgear cell. Always leave it in the connected, disconnected, or(optional) test position. Failure to do so could lead to improperpositioning of the breaker and flashover, causing death, seriouspersonal injury, and / or property damage. Do not defeat any safety interlock. Such interlocks are intendedto protect personnel and equipment from damage due to flashover and exposed contacts. Defeating an interlock could lead todeath, severe personal injury, and / or property damage2eaton corporation www.eaton.comDigitrip Retrofit System for Allis-ChalmersLA-1600 F Fused Breakers
Instruction Leaflet IL 33-A4C-2Digitrip Retrofit System for Allis-ChalmersLA-1600 F Fused BreakersEffective July 2010Digitrip Retrofit Systemfor Allis-ChalmersLA-1600 F FusedBreakersCONTENTSDescriptionIntroduction . 6Step 1: General Breaker Preparation . 7Step 2: Removing the OriginalComponents . 8Step 3: Modifying the Phase 3 PhaseBarriers . 10Step 4: Installing the Reset Link Assembly . 11Step 5: Preparing the DTA Assembly forInstallation . 12Step 6: Installing the DTA Assembly . 15Step 7: Setting the Gap and Cage Height . 17Step 8: Installing the Trip Unit . 18Step 9: Installing the ExternalHarness . 22Step 10: Installing the Breaker MountedCPT Module. 25Step 11: Installing the Sensors . 30Step 12: Final Wiring and Reinstalling theOriginal BreakerComponents . 31Step 13: Testing the Breaker . 32Step 14: Mounting the Cell Harness . 33Step 15: Installing the Retrofitted Breakerin the Cell . : Original ComponentsRemoved from the Breaker. . 8Original Components Removed andSaved for Reinstallation. . 8Reset Spring, Release Magnet Spacer,Threaded Shaft, and Nylon Nut ReinstalledUsing the Supplied Flat Washers. . 9Original Components Removed andScrapped. . 9Overview: Modifying the Phase 3 PhaseBarriers. . 10Trimming the Phase 3 Phase Barriers. . 10Replacement of the Trip ShaftInterlock Pin. . 10Interconnecting Phase BarrierReinstalled in the Breaker. . 10Overview: Reset Link Assembly Installedon the Closing Mechanism. . 11Reset Link Assembly Installed on theBreaker Pole Shaft Wrist Pin. . 11Overview: DTA Assembly Ready forInstallation in the Breaker. . 12Sensor Harness Installed on the Aux.CT Module. . 12Aux. CT Module Pigtail Secured to thePanduit Cable Tie Mount. . 12Aux. CT Module Mounted to the DTAAssembly and Sensor Harness Groundsecured to the Aux. CT Module. . 13EATON CORPORATION www.eaton.com3
Instruction Leaflet IL 33-A4C-2Digitrip Retrofit System for Allis-ChalmersLA-1600 F Fused BreakersEffective July 0.31.32.33.34.35.36.37.4DTA Wires Connected to the Aux. CTModule terminals. . 13PT Label Flag Removed from thePT Module. . 13Insulation Barrier and Panduit Cable TieMount Installed on the PT Module. . 14PT Module Assembly Installed on theDTA Assembly. . 14Microswitch Installed on the AuxiliarySwitch Mounting Bracket. . 14Auxiliary Switch Assembly Installed onthe DTA Assembly. . 14Overview: DTA Assembly Installed inthe Breaker. . 15Correct Positioning of the DTA AssemblyFront Mounting Bracket and AuxiliarySwitch Arm. . 15Correct Positioning of the DTA Assemblyto Provide the Required Gap and to Clearthe Manual Trip Bar. . 16PT Wires Connected to the BottomCurrent Transformers. . 16PT Warning Label Installed on the Breaker. 16Sensor Harness Routed to the Back ofthe Breaker. . 17DTA Installed in the Breaker. . 17Overview: DTA Gap and Cage HeightAdjusted. . 17Adjusting the Cage Height. . 17Overview: Trip Unit Installed on theBreaker. . 18Trip Unit Mounting Bracket Installed onthe Minibox. . 18Location of the “Jacking” Screws. . 19Insulation Barrier and Panduit Cable TieMounts Installed on the Minibox. . 19Communications Harness Connectedto the Trip Unit. . 19Location of the Edge Card Receptacle,Communications Harness Connector,and ATR in the Minibox. . 20Trip Unit Installed in the Minibox. . 20Jacking Screw Instructions. . 20EATON CORPORATION 0.51.52.53.54.55.56.57.58.59.60.61.Rating Plug and Trip Unit Cover Installed. . 21Trip Unit Assembly Installed on theBreaker. . 21Digitrip Retrofit Label Installed on theBreaker Face Plate. . 21Overview: External Harness Connectedto the Trip Unit. . 22Aux. CT Harness Connected to theAux. CT Module Pigtail. . 22Routing and Connection of the Aux.CT Harness to the Minibox. . 22External Harness Connected to theMinibox. . 22510 Basic Kit External HarnessShorting Plug. . 23PT Extension Harness Connected tothe PT Module Harness. . 23Routing and Connection of the PTExtension Harness to the ExternalHarness. . 23Routing and Connection of the AuxiliarySwitch Wires to the Auxiliary Switch. . 24External Harness Secured to the Minibox. 24Overview: CPT Module Installed on theBreaker. . 25Drilling Plan “A”. . 25Fuse Clips and Spade ConnectorRemoved from the CPT. . 25Breaker Mounted CPT Installed on theCPT Mounting Bracket. . 26CPT Assembly Installed on the Breaker. . 26CPT Harness Connected to theExternal Harness. . 26Load and Line Sides of the HV Wires. . 27Suggested Location for the HV Fuses. . 27Load Side HV Wires and CPT HarnessConnected to the Terminals of the CPTModule. . 28Finger Safe Covers Installed on the CPT. . 28HV Wires Connected to the CurrentLimiting Fuse Connectors. . 29HV Fuses Secured to the Breaker. . 29
Digitrip Retrofit System for Allis-ChalmersLA-1600 F Fused Breakers62.63.64.65.66.67.68.69.Instruction Leaflet IL 33-A4C-2Effective July 2010CPT Voltage Labels Supplied with theCPT Kit. . 29CPT Voltage Label Installed on the TripUnit Insulation Barrier. . 29Overview: Sensors Installed on theBreaker. . 30Sensor Installed on the BreakerConnector and Held in Place by theSensor Spacers. . 30Sensor Harness Connected to theSensors. . 30Overview: All Harness and WiresSecured in the Breaker. . 31Breaker Ready for Testing. . 31Retrofit Components . 38Tables1. Available Retrofit Kits . 62. CPT Low Voltage Taps for Standard .and Special Order CPTs(After Removing Fuse Clips) . 263. CPT High Voltage Taps for Standardand Special Order CPTs . 274. Sensor Taps Rating . 305. Torque Values for General Mounting andScrew Size Conversion . 376. Torque Values for Copper BUSConnectors . 37EATON CORPORATION www.eaton.com5
Digitrip Retrofit System for Allis-ChalmersLA-1600 F Fused BreakersInstruction Leaflet IL 33-A4C-2Effective July 2010Section 1: IntroductionEaton Digitrip Retrofit Kits are available in a number of configurationsthat provide a wide range of features. The Digitrip System startswith the 510 Basic Kit that offers true RMS sensing, overcurrentprotection, and self-testing features. Advanced Digitrip Retrofit Kitsfeature zone interlocking, digital alphanumeric displays, remote alarmsignals, PowerNet communications, energy monitoring capabilities,power factors, and harmonic content measurements.Table 1 provides a quick reference of the components supplied witheach level of Retrofit Kit. Before beginning the Retrofit process,take a minute to review the information contained in Table 1. It isimportant that the Retrofitter understands which level of Retrofit Kitis to be installed and which components are included with the Kit.The instructions contained in this manual cover the installation of alllevels of Retrofit Kit. If the Kit you are installing does not containa certain component, skip the instructions for that component andproceed to the next.Throughout the Retrofit process, refer to the Torque Tables at theback of this manual for specific torque values.If you have any questions concerning the Retrofit Kit and / or theRetrofit process, contact Eaton at: 1-800-937-5487.Table 1. Available Retrofit KitsComponents510 Basic510 with ZoneInterlock610810910Plug1 Connector Harness2 Connector Harness3 Connector Harness4 Connector HarnessTrip UnitRating PlugAuxiliary CurrentTransformer(CT) ModuleAuxiliaryCT HarnessSensorsSensor HarnessDirect Trip Actuator (DTA)Mounting Brackets and HardwareExternal HarnessCell HarnessBreaker Mounted Control Power Transformer (CPTPotential Transformer (PT) ModuleAuxiliary Switch6eaton corporation www.eaton.com
Digitrip Retrofit System for Allis-ChalmersLA-1600 F Fused BreakersSTEP 1:GENERAL BREAKERPREPARATIONBefore attempting to remove the Breaker from thecell or perform any Retrofit Operation, be sure toread and understand the Safety Precautionssection of this manual. In addition, be sure toread and understand the Instructions for theApplication of Digitrip RMS Retrofit Kits on PowerCircuit Breakers (Retrofit Application Data –Publication AD 33-855), supplied with the DigitripRetrofit Kit.Instruction Leaflet IL 33-A4C-2Effective July 2010To begin the Retrofit Process, refer to thecomponents list at the end of this manual.Layout the components and hardwareaccording to the steps outlined. Theparts bags are labeled with the corresponding step number. The componentsand hardware will be used to completeeach step in the Retrofit Process.WARNINGDO NOT ATTEMPT TO INSTALL OR PERFORMMAINTENANCE ON EQUIPMENT WHILE IT ISENERGIZED. SEVERE PERSONAL INJURY ORDEATH CAN RESULT FROM CONTACT WITHENERGIZED EQUIPMENT. VERIFY THAT NOVOLTAGE IS PRESENT BEFORE PROCEEDING.A. Trip the Breaker and remove it from the Cell.Move the Breaker to a clean, well-lit work area.NOTE: It is the responsibility of the Retrofitter toinsure that the Breaker and all originalcomponents are in good condition.Visually inspect all Breaker componentsfor signs of damage or wear. If any signsof damage or wear are detected forcomponents not included in the RetrofitKit, secure the necessary replacementparts before beginning the RetrofitProcess.The force necessary to trip the Breakershould not exceed three (3) lbs.NOTE: It is the responsibility of the Retrofitter toinsure that the proper, manufacturer’srecommended crimping tools andterminals are used for each type ofconnector. It is also the responsibility ofthe Retrofitter to insure that all wirepreparations, connections, strippings,terminations, and wiring techniques areperformed according to the latest IEEE,NEC, and / or NEMA industry standards,specifications, codes, and guidelines.EATON CORPORATION www.eaton.com7
Instruction Leaflet IL 33-A4C-2Digitrip Retrofit System for Allis-ChalmersLA-1600 F Fused BreakersEffective July 2010STEP 2:REMOVING THE ORIGINALCOMPONENTSother wires except the Blown Fuse Indicatorwires have to be disconnected from theCurrent Limiting Fuse Assembly.D. Remove and save the hardware securing thePrimary Disconnects (Finger Clusters) to thebottom Breaker Connectors (Stabs). Removeand save the Primary Disconnects.E. Remove and save the wing nuts securing theArc Chute Retaining Bar. Remove and savethe Arc Chute Retaining Bar and the ArcChutes.F. Remove and save the plastic rivets securingthe Interconnecting Phase Barrier in theBreaker. After noting its orientation, removethe Interconnecting Phase Barrier through theright side of the Breaker.G. Note the orientation of the two (2) Phase 3(right) Phase Barriers. Remove all the PhaseBarriers from the Breaker.Fig. 1Overview: Original Components Removed from the Breaker.Refer to the Allis-Chalmers LA-1600 F InstructionManual, originally supplied with the Breaker, toperform the following procedures.A. If equipped, remove and save the hardwaresecuring the Closing Handle to the Breaker.Remove and save the Closing Handle.B. Remove and save the hardware securing theFace Plate to the Breaker. Remove and savethe Face Plate.C. Remove and save the hardware securing theBlown Fuse Indicator wires to the top BreakerConnectors (Stabs). Remove and save thehardware securing the Current Limiting FuseAssembly to the top Breaker Connectors.Remove the Current Limiting Fuse Assemblyand set it behind the Breaker. Note that no8EATON CORPORATION www.eaton.comFig. 2Original Components Removed andSaved for Reinstallation.H. Remove and scrap the hardware securing theStatic Trip Device (Trip Unit) and mountingbracket to the Breaker. Remove and scrap theStatic Trip Device, mounting bracket, andassociated wiring.
Instruction Leaflet IL 33-A4C-2Digitrip Retrofit System for Allis-ChalmersLA-1600 F Fused BreakersI.Effective July 2010Remove the hardware securing the ReleaseMagnet (Direct Trip Actuator) and mountingbracket to the Breaker. Remove and scrapthe Release Magnet, mounting bracket, andbottom mounting hardware (flat head screw,washers, and nut). Save the nylon nut, resetspring, spacer, and top mounting hardware(thread shaft washers, and Nylok nut).J. Reinstall the Reset Spring. Reinstall theRelease Magnet Spacer, threaded shaft, andnylon nut removed in Step 2-F. To make upfor the thickness of the removed ReleaseMagnet, install the (5) 0.313" flat washerssupplied on the threaded shaft before installing the nylon nut.Fig. 4Original Components Removed andScrapped.If the Breaker being Retrofitted is equippedwith an Under Voltage Mechanism, use the(2) .250" washers supplied to make up for thespace left by removing the Release magnet.WASHERSFig. 3Reset Spring, Release Magnet Spacer,Threaded Shaft, and Nylon Nut Reinstalled Using the Supplied Flat Washers.K. Remove and scrap the hardware securing theSensors to the Breaker. Remove and scrapthe Sensors, Insulating Rings, InsulatingSpacers, and associated wiring.EATON CORPORATION www.eaton.com9
Instruction Leaflet IL 33-A4C-2Digitrip Retrofit System for Allis-ChalmersLA-1600 F Fused BreakersEffective July 2010STEP 3:MODIFYING THE PHASE 3 PHASEBARRIERSFig. 7Fig. 5Overview: Modifying the Phase 3 PhaseBarriers.A. Double check the location and orientation ofthe two (2) Phase 3 (right) Phase Barriers.B. Mark and cut .500" from the front edge of eachPhase Barrier, from the top to the notch, asshown in Figure 5.Replacement of the Trip Shaft InterlockPin.D. Install the two (2) modified Phase Barriers andthe other unmodified Phase Barriers in theBreaker in their original positions.E. Reinstall the Interconnecting Phase Barrier inthe Breaker in its original position. Secure theInterconnecting Phase Barrier by means of theoriginal plastic rivets removed in Step 3-B.CUT 0.50" OFF EACH PHASE BARRIERFig. 6Trimming the Phase 3 Phase Barriers.C. Remove and scrap the Trip Shaft Interlock Pin(roll pin) from the right end of the Breaker TripShaft. Install the new roll pin supplied in theBreaker Trip Shaft as shown.10EATON CORPORATION www.eaton.comFig. 8Interconnecting Phase Barrier Reinstalledin the Breaker.
Instruction Leaflet IL 33-A4C-2Digitrip Retrofit System for Allis-ChalmersLA-1600 F Fused BreakersSTEP 4:Effective July 2010INSTALLING THE RESET LINKASSEMBLYFig. 10Fig. 9Reset Link Assembly Installed on theBreaker Pole Shaft Wrist Pin.Overview: Reset Link Assembly Installedon the Closing Mechanism.NOTE: On some LA-1600 F breakers, the originalWrist Pin connecting the Insulation Link tothe Breaker
Digitrip Retrofit System for Allis-Chalmers LA-1600 F Fused Breakers EATON CORPORATION www.eaton.com 7 STEP 1: GENERAL BREAKER PREPARATION Before attempting to remove the Breaker from the cell or perform any Retrofit Operation, be sure to read and understand the Safety Precautions section of this manual. In addition, be sure to
Cutler-Hammer Digitrip Retrofit Kits are available in a number of configurations that provide a wide range of features. The Digitrip System starts with the 510 Basic Kit which offers true RMS sensing, overcurrent protection, and self-testing features. Advanced Digitrip Retrofit Kits feature zone interlocking, digital alphanumeric displays, remote
Cutler-Hammer Digitrip Retrofit Kits are available in a number of configurations that provide a wide range of features. The Digitrip System starts with the 510 Basic Kit which offers true RMS sensing, overcurrent protection, and self-testing features. Advanced Digitrip Retrofit Kits feature zone interlocking, digital alphanumeric displays, remote
Cutler-Hammer Digitrip Retrofit Kits are available in a number of configurations that provide a wide range of features. The Digitrip System starts with the 510 Basic Kit which offers true RMS sensing, overcurrent protection, and self-testing features. Advanced Digitrip Retrofit Kits feature zone interlocking, digital alphanumeric displays, remote
Cutler-Hammer Digitrip Retrofit Kits are available in a number of configurations that provide a wide range of features. The Digitrip System starts with the 510 Basic Kit which offers true RMS sensing, overcurrent protection, and self-testing features. Advanced Digitrip Retrofit Kits feature zone interlocking, digital alphanumeric displays, remote
trip Unit 1.1 Basic Digitrip RMS 610 Trip Unit The Digitrip RMS 610, illustrated in Figure 1, is a Trip Unit suitable for use in types DS and DSL Low-Voltage AC power circuit breakers and type SPB Systems Pow-R circuit breakers and Series C R-Frame molded case circuit breakers . The Digitrip RMS 610
Dealers carrying Heritage parts can promote this fact with outdoor and indoor signage. This catalog overviews O.E.-quality replacement parts available for Allis-Chalmers , AGCO -Allis, Deutz-Allis and Deutz-Fahr tractors, manufactured from 1940 through 1996. (A handful of parts are also included for A-C cotton harvesting
Allis-Chalmers G-50/ G-50A Instruction Leaflet IL 33-A5C-2 Effective July 2010 Step 1: General Breaker Preparation Before attempting to remove the Breaker from the Cell or perform any Retrofit operation, be sure to read and understand the Safety Precautions section of this manual. In addition, be sure to read
Language acquisition goes hand in hand with cognitive and academic development, with an inclusive curriculum as the context. Research over the past two decades into the language development of young bilingual learners has resulted in a number of theories and principles about children learning EAL in settings and schools. 00683-2007BKT-EN Supporting children learning English as an additional .
