Power Breaker Reconditioning Brochure

Heavily damaged breakers can be returned to “like new” conditionAs ReceivedAfter Class 1 ReconditioningCircuit Breaker Life Extension The useful life of vintage low and medium voltage power circuit breakers can be extended and enhanced through Class 1 Reconditioning. Heavily damaged power circuit breakers can also be revived and re-introduced into the distribution system after Class 1 Reconditioning. The combination of Eaton’s unique multi-step process plus the installation of a Digitrip RMS trip unit with Arc Flash Reduction Maintenance Switch results in a breaker restored to its original capacity with a longer life and the ability to reduce arc flash for down-stream breakers.Proven ProcessesClass 1 Reconditioning was developed and refined from over 50 years of extensive field service, customer feedback and testing. Eaton’s power lab and shop testing often reveals best practices that are proven to enhance the original performance and/or reliability of a power circuit breaker. The associated process and materials are adjusted on a national basis to improve reliability and value.A New StandardClass 1 Reconditioning is a unique process that incorporates specific steps to ensure the highest level of reliability and performance for power circuit breakers.• Incoming Inspection, Test and Data Collection• Complete Disassembly• Component Specific Cleaning• Reassembly per OEM Documentation• Final Test per IEEE/NEMA• Centralized Pow-R-DB DatabaseDedicated FacilitiesA special process is better controlled when placed in a dedicated facility, so Eaton established its Aftermarket Centers of Excellence (ACE) locations. The ACE locations are staffed with individuals that are specifically trained in power circuit breaker reconditioning. They are not field engineers or technicians that perform reconditioning to fill unproductive time. They are dedicated to the ACE Class 1 Reconditioning Process and are always available to recondition power circuit breakers on a routine or emergency basis.Centralized Data BaseEaton adheres to original manufacturers standards and tolerances when available. Often, there is no manufacturing data or the original manufacturer is no longer in business. To insure best practices and uniform results, Eaton’s ACE locations record certain data for each breaker when received. All data is entered into a national Pow-R-DB Database for comparison by all ACE locations. Data is then correlated with test results to provide optimum performance.Local Support ServicesEaton has established multiple Aftermarket Centers of Excellence (ACE) facilities in North America to perform the Class 1 Reconditioning Process, but facilities are a small part of the system. Eaton also supports our customers with an extensive engineering systems and services organization located throughout North America. Eaton’s Electrical Systems and Services engineers are factory trained to service and commission/install our Class 1 Reconditioned breakers.WarrantyClass 1 Reconditioned breakers have a standard three (3) Year warranty, unless used in a motor starting application.Class 1 ReconditioningElectrical Equipment Life Extensionand ModernizationElectrical SectorLow and Medium VoltagePower Circuit BreakersEaton is a registered trademark. All trademarks are property of their respective owners.Eaton1000 Eaton BoulevardCleveland, OH 44122United StatesEaton.com© 2013 EatonAll Rights ReservedPrinted in USAPublication No. PA182301ENNovember 2013Component Specific CleaningBreaker components are manufactured from different types of materials, so a “one fits all” method of cleaning is unacceptable. Contact resurfacing maintains proper metallurgy. Incoming Inspection, Test and Data CollectionAll power circuit breakers receive a thorough incoming inspection and test are performed when possible. Certain force and dimensional information is also measured and recorded.Reassembly to OEM SpecificationsOEM data is used when available and if not, Eaton refers to Pow-R-DB to determine the best operating parameters previously measured and proven with actual test results.Issues Missed By Other ProcessesDisassembly and special cleaning exposes hidden issues that can cause failures during operation. Drive link would have broken while opening under short circuit current.Misaligned ContactsContact misalignment can cause premature failure and welding of the surface material.Damaged InsulationDielectric breakdown will occur over time.DigiTrip 510 Solid State Trip UnitsUpgrade the circuit breaker’s protection with an Eaton RMS trip system.Arc-Flash Reduction Maintenance SwitchAdding an Arc-Flash Reduction Maintenance Switch can substantially reduce down-stream arc flash levels.Complete DisassemblyEach breaker is disassembled to the smallest subassembly or component to expose all surfaces for further inspection, cleaning and reconditioning.Pow-R-DB Data BaseFinal test data and “before” and “after” characteristics of each breaker are recorded with unique identification for tracking and correlation of performance values.The Bottom LineAnyone can clean, shine and re-lubricate Power Circuit Breakers, but you may end up with a shiny version of your original problem. If reconditioning is not performed in an Eaton ACE facility, it’s not Class 1 Reconditioning.Final TestingEach Class 1 Reconditioned breaker receives a standard production test series per applicable IEEE/ANSI standards.