Protective Relay Testing
Specialized Engineering Services,Inc.
provides comprehensive Relay Testing services as part of our Electrical Testing and Maintenance services. We perform Relay Testing for a variety of facilities including industrial plants, large commercial facilities, and power generation stations. We are available 24 hours a day for emergency response situations.
calibration, and repair of electro-mechanical, solid state, and microprocessor circuit protection relays. State of the art test equipment (ex. MANTA 5100 Relay Test Set) and software (RTS Relay Test Software) are used to complete testing. Field Engineers with proper understandings of circuit schematics, switching schemes, Input/Outputs, Ladder Logic, power generation, and more are tasked with performing the relay testing . SES is capable of performing line to line or also described as end to end relay testing and calibration.
Additional Relay Services
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Programming and Start Up
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Function Tests (simulating fault and physically trip breaker)
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Relay coordination (electrical coordination)
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Relay sales
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Construction of relay panels
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Relay circuit protection design
Common Relays Serviced
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SEL - Schweitzer Engineering Laboratories Relays - SEL-2664, SEL-300G, SEL-700G, SEL-311C, SEL-321, SEL-351, SEL-352, SEL-387, SEL-411, SEL-451, SEL-487, SEL-501, SEL-551, SEL-701, SEL-710, SEL-751, SEL-849, and other SEL Relays
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Beckwith - M-3425, M-3410, M-3520, M-7679, M-2001, M-3311
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GE - General Electric - BDD, CFD, CFVB, GCX, GCY, GGP, IAC, IAV, ICW, IJC, PJC, PVD, Multilin
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ABB - ASEA Brown Boveri - TPU, DPU, CO, CV, HU, IRP, KAB, KC, KD, KDTG, KDXG, SC, SV, TD
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Basler - BE1 Models
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Bently Nevada
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Allen Bradley
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Rockwell Automation
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Relay Testing Overview
Circuit protection relays are part of the protection scheme which contains or isolates faults protecting employees and equipment. Proper electrical testing and simulation of relay functions is a complex task for most types of substation relays. SES performs electrical testing,