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Operator’s 7000 Series ATS Automatic Transfer Switches ...

381333 283 B50 Hanover Road, Florham Park, New Jersey 07932 1591 USAFor sales or service call 1 800 800 2726 (ASCO) POWER TECHNOLOGIES CANADA PO Box 1238, 17 Airport Road, Brantford, Ontario, Canada N3T 5T3telephone 519 758 8450, fax 519 758 0876, for service call 1 888 234 2726 (ASCO) sManual7000 Series ATSA utomatic Transfer SwitchesJ design, 260, 400, & 600 ADANGER is used in this manual to warn of highvoltages capable of causing shock, burns, or of possible personal of possible equipment amp. sizeRefer to the outline and wiring drawings providedwith your 7000 Series ATS for all installation andconnection details and toGroup 5 Controller User s Guide381333 126 for ATS status display messages, timedelays, pickup & dropout settings, and LabelEach Automatic Transfer switch (ATS) has a rating label todefine the loads and fault circuit withstand/closing to the label on the Transfer switch for specific not exceed the values on the rating the rating can cause personal injuryor serious equipment Transfer Switch nameplate includes data for eachspecific ASCO 7000 Series ATS.

Catalog Number Identification A typical Catalog Number is shown below with its elements explained. The example is for a 7000 Series 7ATS with overlapping neutral, 3 pole, 600 amp, 480 V, …

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Transcription of Operator’s 7000 Series ATS Automatic Transfer Switches ...

1 381333 283 B50 Hanover Road, Florham Park, New Jersey 07932 1591 USAFor sales or service call 1 800 800 2726 (ASCO) POWER TECHNOLOGIES CANADA PO Box 1238, 17 Airport Road, Brantford, Ontario, Canada N3T 5T3telephone 519 758 8450, fax 519 758 0876, for service call 1 888 234 2726 (ASCO) sManual7000 Series ATSA utomatic Transfer SwitchesJ design, 260, 400, & 600 ADANGER is used in this manual to warn of highvoltages capable of causing shock, burns, or of possible personal of possible equipment amp. sizeRefer to the outline and wiring drawings providedwith your 7000 Series ATS for all installation andconnection details and toGroup 5 Controller User s Guide381333 126 for ATS status display messages, timedelays, pickup & dropout settings, and LabelEach Automatic Transfer switch (ATS) has a rating label todefine the loads and fault circuit withstand/closing to the label on the Transfer switch for specific not exceed the values on the rating the rating can cause personal injuryor serious equipment Transfer Switch nameplate includes data for eachspecific ASCO 7000 Series ATS.

2 Use the ATS only withinthe limits shown on this experienced licensed electrician must install the OF and Line Circuits and Starting Test1-2 through & the Load Number IdentificationA typical Catalog Number is shown below with its elements explained. The example is for a 7000 Series 7 ATSwith overlapping neutral, 3 pole, 600 amp, 480 V, in a Type 1 enclosure:7 ATSC 3600N5 CPhase PolesNeutralA solidAmperesVoltageControllerEnclosureB switched5X ifaccessoriesordered5 standardG type4C type1F type3RH type4X3 three 2 single B120D220A115C208E230K415M460J400L440N480 G277F240H380Q575P550R600600blank noneblank open typeJdesignprefixletter260400L type12C overlappingTransferSwitchControllernorma l powerconnectionsemergencypowerconnection stransfercontrol&lights260 amp. size in typical enclosure with location of customer connectionscustomer terminals blockload powerconnectionsSECTION 1 INSTALLATION1 --- 1 ASCO 7000 Series Automatic Transfer Switches (ATSs)are factory wired and tested.

3 Field installation requiresrequires mounting and connection of service cables,and auxiliary control circuits (if required).Remove the Shipping Skid (large ATSs)For large ATSs, open the front door and remove thefour lag screws (2 in front, 2 in rear) securing enclosureto the wood FoundationThe supporting foundation for the enclosure must belevel and straight. Refer to the applicable enclosureoutline drawing included with the switch for allmounting details including door opening bottom cable entry is used, the foundation must beprepared so that the conduit stubs are locatedcorrectly. Refer to the enclosure outline drawing forspecified area and location. Provide cable bendingspaceandclearancetolivemetalparts . Whenaconcrete floor is poured, use interlocking conduitspacer caps or a wood or metal template to maintainproper conduit to the applicable enclosure outline drawingfurnished with this switch and mount the automatictransfer switch according to details and ConnectionsRefer to the Wiring Diagram provided with the wiring must be made in accordance with theNational Electrical Code and local is not necessary to remove pole covers from thetransfer switch for cabling.

4 If you do remove them,reinstall them energize the conductors before makingany line or auxiliary circuitry sure that Normal and Emergency lineconnections are in proper phase engine generator starting control in theOFF position. Make sure engine generator isnot in Power ConductorsDo not connect the power conductors to the transferswitch until they are tested. Installing power cables inconduit, cable troughs and ceiling-suspended hangersoften requires considerable force. The pulling of cablescan damage insulation and stretch or break theconductor s strands. For this reason, after the cablesare pulled into position, and beforethey areconnected, they should be tested to verify that they arenot defective or have been damaged the Automatic Transfer switch fromconstruction grit and metal chips to preventmalfunction or shortened life of the Power ConductorsAfter the power cables have been tested, connect themto the appropriate terminal lugs on the Transfer switchas shown on the wiring diagram provided with theswitch.

5 Makesurethelugsprovidedaresuitableforuse with the cables being installed. Standard terminallugs are solderless screw type and will accept the wiresizes listed on the drawings provided with the careful when stripping insulation from the cables;avoid nicking or ringing the conductor. Removesurface oxides from cables by cleaning with a wirebrush. When aluminum cable is used, apply jointcompound to conductors. Tighten cable lugs to thetorque specified on rating GroundA grounding wire must be connected to the controller slower left mounting stud. Because the controller ismounted on the enclosure door, a conductive strapmust be used between the enclosure and the door. Thisconnection provides proper grounding which does notrely upon the door Transfer switch is connected to the left side of thecontroller by a plug in harness (two plugs).INSTALLATION(continued)1 --- 2 Engine Starting ContactsAll customer connections, including the engine controlcontact connections, are located on terminal block TBwhich is mounted on the top right side of theenclosure.

6 Refer to the wiring diagram provided withthe Automatic Transfer switch and connect the enginestart wires to the appropriate terminals. See Figure1 1 and Table A. Engine start normal sourcefailsTerminals onTerminal Block TBcontact closesTB1 and TB2contact opensTB1 and TB3 Note:To temporarily disable engine control fromthe Automatic Transfer switch you can unplug J3from the small P3 receptacle at the bottom of theassembly. BesuretoreconnectplugJ3totheP3receptacle for Automatic Transfer switch CircuitsConnect auxiliary circuit wires to appropriate terminalson Transfer switch terminal block TB as shown on thewiring diagram provided with this Automatic startconnectionsoncustomerterminalblock TBFigure 1-1. Customer terminal block on the top rightside of the TestThe Functional Test consists of three checks:S1 Manual Operation Test, page 1 3S2 VoltageChecks,page1 4S3 Electrical Operation, page 1 5Do these checks in the order presented toavoid damaging the Automatic Transfer all instructions on the Wiring Diagram and labelsaffixed to the Automatic Transfer switch.

7 Note thecontrol features that are provided and review theiroperation before to1 ManualOperationTeston next (continued)1 --- 31 Manual Operation TestA detachable maintenance handle is provided on theframe of the Transfer Switch for maintenance purposesonly. Manual operation of the Transfer switch should bechecked before it is energized (operated electrically).Do not manually operate the Transfer switchuntil both power sources are disconnected:open both circuit After deenergizing both power sources, open theenclosure door. Locate and remove the mainte-nance handle from the clips on the left side of thetransfer switch frame. Insert the handle into theholeinthemoldedhubontheleftsideoftheo perator. See Figures 1 2 and 1 3 and Table Move the maintenance handle up or down as shownto manually operate the Transfer switch. It shouldoperate smoothly without any binding.

8 If it does not,check for shipping damage or construction Return the Transfer switch to the Normal that the window indicators (right side) showthe top shaft O (open) and the bottom shaft C(closed).Table B. Maintenance handle PositionHandleIndicatorsNormalENupE=Oupp er contacts openN=Clower contacts closedEmergencyENdownE=Cupper contacts closedN=Olower contacts openNote: If Normal and Emergency connections arereversed this operation is also side oftransfer switchstorage clipFigure 1-2. Maintenance handle and its storage Remove the maintenance handle and store it on theframe (left side) in the clips that the maintenance handlehas been removed before proceeding!Now continue to2 VoltageCheckson next closes theNormal sourcecontacts (lower)DOWN closes theEmergency sourcecontacts (upper)framewindowindicatorsOis openCis closedEmergencycontactsNormalcontactscon tact positionindicators (right side)Figure 1-3.

9 Maintenance handle operation and contact position (continued)1 --- 4 REDREDGREENGREEN observethese lightsFigure 1-4. Standard controls and VoltageChecksFirst check nameplate on Transfer switch; rated that the feeders have beenconnected to the proper measure voltages in the followingsteps. Do not touch power terminals;shock, burns, or death could result !Perform steps 1 through 6 at the right. Observe thestatus lights. See Figure 1 square means light is square means light is off.* If necessary, adjust voltage regulator on the generatoraccording to the manufacturer s recommendations. TheAutomatic Transfer Switch will respond only to the ratedvoltage specified on the Transfer Switch to Section 3 ofGroup 5 Controller User s Guide381333 126 for how to display the Status of the ATSand the Voltage and Frequency of each continue to3 Electrical Operationon next the normal source circuitbreaker.

10 TheTransfer SwitchConnected To Normaland theNormal Source Acceptedlightsshould come an accurate voltmeter tocheck phase to phase andphase to neutral voltages pres-entatthetransferswitchnormalsource the emergency sourcecircuit breaker. (Start generator,if necessary.) TheTransferSwitch Connected To Normal&Emergency Source Acceptedlights should come an accurate voltmeter tocheck phase to phase andphase to neutral voltages pres-ent at the Transfer switch emer-gency source terminals.*5 Useaphaserotationmetertocheck phase rotation of emer-gency source; it must be thesameas the normal down the engine genera-tor, if applicable. TheEmergen-cy Source Acceptedlight shouldgo off. Then put the startingcontrol selector switch (on thegenerator set) in theautomaticposition. Close enclosure (continued)1 --- 5 REDREDGREENGREEN observethese lightsoperatethis switchFigure 1-5.


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