Dynamic relay testing means testing under true simulated power system conditions. Ieee pes relay performance testing relay electric power. Introduction this report proposes a test that can be applied to any type of transmission line distance relay to ascertain its response to offnominal frequency and abnormal system voltages. This paper presents a methodology for evaluating distance relay transient performance based on extensive laboratory testing. Page 3 of 15 standard work practice sp0518 ver 2 ergon energy corporation limited abn 50 087 646 062 ergon energy queensland pty ltd abn 11 121 177 802 return the relay scheme to service in an acceptable standard.
If so the trigger circuit of the relay electrical system is working, if not continue to next step. These tests are usually provided for equipment aclower currents. The objective is to find a modeling function that closely fits the available data, and can used for interpolation or judicious extrapolation to find estimates of the. With microprocessor relays, the builtin, self testing features can. This book was written for relay testers, rather than design engineers, so you no longer have to decipher engineering textbooks when performing relay tests. Choosing the suitable relay testing set depends much on the application or type of protection relay to be tested overcurrent, distance, differential, voltage, single or 3phase relay testing, etc, the generation of the relay electromechanical, analogue, digital, more and more frequent with iec 61850 performance, the test scenario e. Periodic relay testing is, first and foremost, preventive maintenance. This revolutionary product, the most modern equipment of its class, fulfills the requirements of the. Relay testing servicesem relays, cable assemblies, hard. The relay testing handbooks are a series of books that have been written from the relay testers perspective to concentrate on the principles and. The npcc created a team to investigate the event, analyze relay operation, and recommend improvements to the line distance protection performance for such events.
Testing 3 test methods 3,4 test equipment 4 notes on testing 4 test diagrams for systems with g. The relay testing handbook pdf digital version is now available you can now purchase the relay testing handbook pdf copies of any book in the relay testing handbook series at our online store. Battery and charger performance degradation observed communication channel degradation flagged asleft relay settings are baseline for maintenance changes must be researched and validated automated testing program results remain consistent. Performance testing of hrc fuse links free download as powerpoint presentation. The emergence of traveling wave line protection and fault location is a true breakthrough in the power industry, improving power system performance by increasing transient stability margins, increasing public and personnel safety, and limiting. Performance specification and testing of transmission line. Emtp reference models for transmission line relay testing. Scribd is the worlds largest social reading and publishing site. You can now purchase the relay testing handbook pdf copies of any book in the relay testing handbook series at our online store. A demonstration of how you can test the entire contact circuit in a relay system from the relay base. Design optimization and performance evaluation of the relaying algorithms.
The performance parameters in this paper will be strictly limited to characteristic test for faults at different fault angles. Control circuitry associated with a fault pressure relay. A magnetic latching relay performance testing system is proposed in the paper which including the main control module, auxiliary control module and the load. To test the insulation integrity you will need a megohmmeter or hipot rated to produce the specified maximum test voltage. Test connections for overcurrent receptance, but may be necessary if the. In this article, we will show what resistance readings you should get when you measure various points of a relay. The steady state approach uses the steady state methods to find some.
Realworld event reports are presented where correct relay operation was compromised as a result of incorrect current values from saturated cts. Refer to the datasheet to get the coils resistance. Protective relay testing may be divided into three categories. Thus, procedures and records should be designed with preventive maintenance as the guide.
To test a relay to see whether it is good or defective, the simplest way to do would be to use a multimeter set to the ohmmeter setting and measure various resistance values of the relay. Important issues regarding application testing are. Request pdf realtime simulation for relay performance evaluation with the introduction of highspeed relaying systems, the need for extensive. This compilation includes all of the previously released packages from the relay testing handbook that discuss the generic principals of relay testing for modern digital relays. This compilation is not intended as a complete survey of the field of electrical and electronic equipment testing. Which of the procedures described below are added to your test plan will depend on the specific project or industry specifications, to be determined by the equipment owner or system engineer. Operation, maintenance, and field test procedures for. Finally, we explain how ct saturation can affect relay operation and show how to detect ct saturation in protective relay event reports. Guardmaster safety relays catalog numbers 440rsr2, 440rs12r2, 440rd22r2, 440rd22s2, 440rem4r2, 440rem4r2d user manual original instructions. The development and execution of functional tests for. Submitted in partial fulfillment of the requirements for the degree of. Fieldvue dvc6200 digital valve controller mounted on a fisher slidingstem valve actuator x11821 figure 1.
Performance testing of hrc fuse links fuse electrical. D22 performance specification and testing of transmission line relays for frequency response 4 1. Realtime simulation for relay performance evaluation. From the vendor perspective, switching to the new hard ware platforms, frequent modifications of the software of a. Endtoend testing of high speed pilot relaying tutorial and lessons. This seminar will introduce the theory and practice of endtoend relay testing from the relay testers.
Magnetic latching relay is widely used in smart meter and low control energy consumption is the advantage. The quality of the meter is decided by magnetic latching relay. Operation, maintenance, and field test procedures for protective relays and associated circuits iii acronyms and abbreviations a ampere ac alternating current amp ampere ansi american national standards institute bes bulk electric system carma capital asset and resource management application ccvt coupling capacitor voltage transformers co. This paper briefly describes the special publication relay performance testing prepared by working group 1 of the relaying practices and. Over the years, different methods have been adopted to test the characteristics, reach and maximum torque angle of a distance relay as part of acceptance testing. The relay testing handbook is an indispensable resource that every relay tester should keep at their fingertips. Ieee pes relay performance testing free download as pdf file. The relay testing handbook pdf digital version is now. Analysis and application on performance testing system for.
This guide focuses on the general approach and specific procedures for testing protective relaying systems that include multiple interacting relay components, auxiliary devices, and power apparatus. How to test a relay with a multimeter electronics post. Performance testing ground fault protection systems contents description page general information 2 checklist for g. The standards that cover majority of relay performance aspects. Thus, the true purpose of preventative maintenance may be lost.
Relays 5 to 12 test diagrams for systems with integral g. The purpose of testing a relay is to find, whether it is good or bad. Performance specification and testing of transmission line relays. The first describes the testing of various electronic components, assemblies, and systems. Fred horvath, fpl seabrook station jim mack, schweitzer engineering laboratories, inc. The relay testing handbooks are a series of books that have been written from the relay testers perspective to concentrate on the principles and practical questions that every relay tester should be familiar with. Fieldvue dvc6200 digital valve controller integrally mounted to a fisher gx control valve w9616 using a personal computer and valvelink software or ams suite. New test methodology for evaluating protective relay security and. Instructions ground protection systems ge industrial. Scheduled control sweep functional test acceptance criteria automatic time switch controls are programmed with acceptable weekday, weekend, and holiday schedules, per building occupancy profile.
Atp modeling of internal transformer faults for relay. A report from ieee entitled relay performance testing discusses the methods of. Testing reed switches and relays for reliability cont. Most utilities have a wide variety of test plans and practices.
Rts provides testing for all types of electromechanical relays. Fist 38, operation, maintenance, and field test procedures for protective relays and associated circuits 5a. Rtds technologies makes waves with the worlds most robust tool for testing traveling wave protection devices in a closed loop. The reason for the discrepancy will not be a change in the relay characteristic but a change in the test conditions, for example, the relays proximity to a steel cabinet. In similar way we can check overload relay of higher current. The accuracy class indicates the pts performance characteristics. Two different characteristics for one of the most popular transmission digital relays will be carefully studied for the above parameter. And one of the best ways to do this is to use a multimeter with an ohmmeter setting and then measuring the resistance values. Annual inspection all relays shall be given an annual inspec tion. Testing potential transformers relay testing training. Authors paul price, nate myers, jim dehaan bureau of reclamation hydropower technical services group denver, colorado 5d. Note, that this approach is based on estimation or. Use the following test procedure for pt insulation tests.
Abstractperforming tests on individual relays is a common practice for relay engineers and technicians. Pt load is also called the burden that is usually defined in volt. Protection relay testing for commissioning swp check this is the latest process zone version before use. Abstracttesting is the last line of defense for relay system performance before the switch is thrown. The tests themselves will reveal catastrophic failures which would have prevented the relay from performing when called upon to operate, while properly maintained records will reveal. Vehicle relays testing from the relay base youtube. Unresolved maintenance issue a deficiency identified during a maintenance activity that causes the component to not meet the intended performance, cannot be corrected during the maintenance interval, and requires follow up corrective action.
Protection relay testing and commissioning cedengineering. Universal secondary injection test set for testing all kind of protective relays and protection schemes. This makes the performance testing of the scheme a complex affair in factory as well as at site. This testing ranges from 100% parametric testing to life testing customized to the actual application. Design optimization and performance evaluation of the. Step 4 once the relay has been identified, gently grasp or touch the relay in question, have a helper turn the ignition key to the on position, then crank the engine over, the relay should click in one of the ignition switch positions. Stepbystep instructions for individual elements will be discussed in upcoming packages and compiled together in a future compilation.
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