ETA Systems SM5505 manual Routine Maintenance, Harmonic Filter Circuit Breaker Trips Out

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Figure Q

Section 8 - Troubleshooting/Maintenance

8.1.4 Harmonic Filter Circuit Breaker Trips Out

If equipped with a harmonic filter option, the power conditioner will incorporate a passive harmonic filter. One characteristic of such filters is that they tend to “sink” harmonics regardless of whether the source is the load or the facility. In some circumstances, it is possible that the load and the facility together may require more reactive current than the filter is rated to provide. For that reason, models equipped with the harmonic filter option include a circuit breaker to pretect the filter from delivering reactive current current in excess of its capabili- ties. The circuit breaker is located on the front panel as illustrated in Figure Q to

the left. The circuit breaker will trip if its reactive current capabilities are exceeded. The circuit breaker may be reset at any time without interrupting the operation of the power conditioner. However, unless the source of ex- cessive harmonics is located and eliminated, the circuit breaker is likely to once again trip as soon as it has been reset. If tripping of the harmonic circuit breaker is frequent and persistent, this is an indication of high harmonic content within the facility electrical system which could be investigated and corrected.

8.2 Routine Maintenance

Little routine maintenance is required for the CPC series to function reliably for many years. Depending on the application for which the power conditioner is being used, however, occasional routine cleaning may be recom- mended. Some applications and installation environments generate significant dust residue. This may be espe- cially true in printing facilities. Because the CPC series is convection cooled, it is important to prevent dust buildup from blocking the ventilation slots. Dust buildup should also be removed from inside the power condi- tioner enclosure. Dust may be easily removed with any ordinary shop vacuum. Remove dust as often as re- quired to keep ventilation slots clear and excessive dust from accumulating inside the enclosure.

To perform maintenance inside the enclosure, it will be necessary to de-energize the power conditioner as de- scribed in Section 6.5 and remove the side panels as described in Section 5.3. Make sure to observe Section 6.1 carefully when completed before returning the power conditioner to service.

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Conditioned Power Center

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Contents CPC Series Conditioned Power Center Table of Contents Service and Support E a S E General Safety Ansi Warning NoticesInherent Hazards Alerts and LabelsLine Voltage Present With Machine Power OFF Wear protective gear before servicing internal partsSafety Interlocks Lockout/TagoutEmergency Contact Information Conformance with Applicable Laws and RegulationsProduct Liability Product Overview Product PurposeStandard Features Optional FeaturesFeature Preparation UnpackagingPreparation Figure D Shipping Crate Disassembly 10 to 20 kVA Installation Outer Panel Removal Alternate Conduit Landing LocationsMain Input Circuit Breaker Fixed Input Circuit BreakersIsolation Transformer Programmable Circuit BreakersTransformer Primary Voltage Adjustment Figure GOutput Voltage Fine Adjustment GroundingLockout/Tagout Procedure Figure JModels With Optional Line Cord/Output Receptacles Input Power ConnectionsOutput Power Connections Operation Restoring For ServiceEnergizing the Power Conditioner Energizing the Load Orderly ShutdownConditioned Power Center Phase Loss/Low Voltage Detection and Protection OptionsExternal EMO Seismic AnchorageSemi S2-0200 Compliant EMO Input Power Conductor RestraintsSemi S2-0200 Certification Options Troubleshooting/Maintenance Conditions Requiring TroubleshootingSource Circuit Breaker Trip Input Circuit Breaker TripsTvss Fault LEDs Illuminate Routine Maintenance Harmonic Filter Circuit Breaker Trips OutProduct Warranty Service and SupportTechnical and Service Assistance Customer Service Specifications CPC Series SchematicGPI Series 2000 Standard EMO GPI Series 2000 Semi S2 EMO Output Voltage Fine Adjustment Important ALL Work to be Done By a Licensed ElectricianDocument Revision History Title Rev. Letter Rel. Date Next Rev. LevelSM5505- Rev. a 03/01/2006, 2006 ETA Systems39
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