The new protection relay functional standards are designated as the IEC 60255-1xx series. The standardisation of various test methodologies and measurement metrics promises benefit...
Guide Facilities need to perform installation tests, implement preventive maintenance programs, and perform comprehensive commissioning tests to verify the integrity of both existing protective relay systems
Guide Perform comprehensive commissioning testing at the time of installation. Use thorough checklists, simulations, laboratory testing, and/or field checks to verify the performance of the protection system,
Guide One important complication of the technology shift is the increas-ing portion of the protection system design that resides in algorithms and logic in relays. Meanwhile, testing and commissioning practices
Guide A qualified person must be properly trained, knowledgeable, and experienced in relay and protection system maintenance and safety, as well as testing techniques for specific protection equipment
Guide Each Transmission Owner, Generator Owner, and Distribution Provider shall establish a Protection System Maintenance Program (PSMP) for its Protection Systems, Automatic Reclosing, and Sudden
Guide The aim is to help users in evaluating protection functions on a standardised basis with respect to relay selection, setting, commissioning, application, and operation.
Guide Commissioning tests are done to show that a particular protection configuration has been correctly used prior to setting to work.
Guide Wear appropriate PPE and use safety gear as required. Check that you are only exposed to secondary voltages and currents (120V, 5A) unless performing primary injection testing. Verify that
Guide Follow all recommended testing and commissioning procedures from relay manufacturers, and validate that the relay operates as expected and as set for expected scenarios.
Guide G I-25 guide to evaluate the participants'' responses. Section 2.4 explains how a commissioning group should conduct an independent, comprehensive review of the entire
Guide PG&E maintains Tables of pre-approved relays for different functional requirements. See the Distribution Interconnection Handbook, and Tables G2-4 and G2-5 in the Transmission Interconnection
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