Electronic Specialties 191 Relay Buddy Pro Test Kit

Product Information

several megohms (MΩ)) from the NO (Normally Open) terminal to the COM terminal. This is because the NO It is planned that the work being carried out by this group will be coordinated with the existing IEC 60255- 1xx series functional standards that consider voltage, current, temperature, etc. inputs in analog form, plus binary inputs and outputs. Future editions of the existing functional standard, as well as the new one, will take into account the voltage, current, temperature, etc. inputs in analog form and digital form in accordance with IEC 61850, as well as binary inputs and outputs and IEC 61850 GOOSE messages. Need to make a log of your results? No problem with the SVERKER780 - hook the relay tester up to your PC via the built-in serial connection to export your results into Excel documents or use Megger's SVERKER Win software (sold separately) to create fully customisable reports and log data in real-time. Megger SVERKER780 Feature/Benefit Breakdown Another example relates to the IEC 60255-181:2019 standard for frequency and frequency-related protection functions [2]. This standard specifies a particular frequency ramp, the formula for which can be found in normative annex A of IEC 60255-181. Testing frequency relays with a different frequency ramp may result in unexpected results, depending on the relay algorithms and, once again, this can lead to unnecessary discussions if the test result is declared as failed. Since no test engineer nor any end-user wants to have doubts about the protection relay’s behavior during commissioning, it is best to always use the same standardised frequency ramp. Volker Leitloff - Volker is an expert in domain protection and automation with RTE (French TSO). Volker is an active member of the IEC:

Megger developed the first software-driven protective relay test system in 1984, and we continue to provide models ranging from computer-controlled (with comprehensive yet simple, built-in, touch screen user interfaces) to manually operated test sets in portable and laboratory styles for every relay testing need. Relay test solutions may be expensive propositions when software is charged separately but with Megger solutions, the software required to test most relays is included with the test set so you don’t incur additional expenses. the NC terminal is normally closed, meaning there should be direct continuity from the NC terminal to theThese diagnostic methods determine whether a relay's coil is collapsing while switching positions during operation. IEC 60255-187-1, Functional requirements for restrained and unrestrained differential protection of motors, generators, and transformers With Megger SVERKER units, you'll have everything you need to test practically any single-phase relay protection. This relay test set is suitable for use with overcurrent, inverse time, undercurrent, ground fault, directional overcurrent, directional ground fault, overvoltage, undervoltage, directional power and a wide variety of other single-phase protection. It's also suitable for use on three-phase protection - just use the SVERKER780 on one phase at a time or alternatively this relay tester is also suitable for use on phase-shifting protective relay systems plus automatic reclosing devices. Thierry Bardou - Thierry is a senior engineer in protection relay at Schneider Electric. Thierry is an active member of the IEC: With IEC 61850, on the other hand, communication between equipment takes place via a shared Ethernet network. The manufacturer-independent IEC61850standard forms the basis for digital communication in the substation network. Equipment and systems from different manufacturers are able to exchange data, commands, and measured values seamlessly using a set of standardized protocols. IEDs (Intelligent Electronic Devices) are used as protection, automation and control devices in IEC61850environments.

terminal to the COM (common) terminal, when the relay has no voltage going through it. This is becauseIn 2012, an ad hoc working group – AHG2 “New protection requirements for the smart grid”– was formed and it submitted its report to TC 95 in 2014. This identified a need for revising some of the existing standards and for developing new standards taking into account the high penetration of distributed generation, which is posing new protection challenges. Revisions of IEC 60255-1, IEC 60255-26, and the new functional standard IEC 60255-181 were identified as high priorities. The relay test set is a valuable tool to help detect faults that are not apparent with simply a visual inspection. Bonetti, Andrea, Murty V.V.S. Yalla, and Stig Holst. “The IEC 60255-121:2014 Standard and Its Impact on Performance Specification, Testing and Evaluation of Distance Protection Relays”. In 2016 IEEE/PES Transmission and Distribution Conference and Exposition (T D), 1–6, 2016. https://doi.org/10.1109/TDC.2016.7520031 IEC61850is now successfully established as the standard for communication in electrical power systems. Using standardized protocols such as GOOSE, Sampled Values and MMS, devices and systems can seamlessly exchange data, commands and measured values. When connected to a common network, equipment from different manufacturers can therefore communicate directly with one another. No additional effort is required for hardwired binary signals and the system can be easily re-configured if required. Standardization on IEC61850also makes it easier to carry out scheduled maintenance tests. When implementing fully digital substations it's almost impossible to avoid this standard.

The entire relay community is eagerly awaiting the technical report that TC 95/WG 2 is preparing about IEC 61850 applications for GOOSE and Sampled Values in relay protection applications. The report aims to provide significant guidelines for the use of IEC 61850 in protection applications, with many mandatory requirements in the report that are not mandatory in the IEC 61850 standard itself. It can also be said that the report provides a relay protection profile for the IEC 61850 standard. The report gives in-depth details about process bus, merging units, time synchronisation, andtesting. It is planned that the work being carried out by this group will be introduced into the existing IEC 60255-1xx series standards that consider the voltage, current, temperature, and other inputs in analog form only, plus binary inputs and outputs. As already mentioned, the next editions of the existing functional standard, as well as the new one will take into account the voltage, current, temperature, etc. inputs in analog form and digital form in accordance with IEC 61850, as well as binary inputs and outputs and IEC 61850 GOOSE messages. Once the report is published, the most significant parts of it will be integrated into the IEC 60255-1xx series becoming full IEC standards [3]. The SVERKER650 is compact and portable enough to easily be transferred from testing point to testing point and is supplied as standard with a rugged carrying case. Megger SVERKER650 Terminal/Function Breakdown

Megger SVERKER780 Relay Test Set Key Features

Settings-based protection testing focuses on the protection functions and the associated set values of the individual protection relay. Modern protection relays offer thousands of settings which is why automated testing is far superior to a manual approach. TestUniverse provides you with an extensive range of options in terms of standardization and automation, including fully automatic creation of test reports. With the aid of test plans, you can carry out testing with maximum efficiency. Combined with the immense functional range, our testing software also gives you the necessary flexibility to test protection relays and other secondary assets in detail. The standards are being developed and published by the Maintenance Team 4 (MT4) of IEC Technical Committee 95 (TC 95): “measuring relays and protection equipment”. The scope of TC 95 is the standardisation of measuring relays, protection equipment, and protection functions embedded in any equipment or systems used in various fields of electrical engineering covered by the IEC, including combinations of devices and functions that form schemes for power systems protection. TheTC 95 scope includes control, monitoring, and process interface related functions and equipment used with protection systems (such as automatic reclosing, fault location, teleprotection or process data interfaces, and fault recording); as well as protection and protectionrelated functions of distributed energy resources (DER) or inverter-based resources (IBR). Provides 0-250A AC, 0-250V AC or 0-300V D, depending on the ouput being used. Setting are made using the main knob. The readings of current, voltage and other entities appear on the display. The start switch is used to turn the current source on and off. When time is being measured, this is done in synchronisation with the timer.

may be 320Ω, 900Ω, or any of the various resistances. This will come specified with each specific relay used, along with the Not only should the test engineer be aware of these requirements, but test equipment manufacturers are also expected to implement standardised test methods in their test sets. As these two examples have shown, the standardisation chain extends far beyond the relay manufacturers.Shows time, current, voltage and other parameters. Also used to make settings (access setting mode by pressing MODE button) Leitloff, Volker, Hao Chen, Dehui Chen, Andrea Bonetti, Lei Xu, and Ahmed Mohamed. “Standardisation Challenges for Digital Inputs and Outputs of Protection Functions in IEC 60255 Series”. In ResearchGate. Glasgow, UK, 2019. https://www.researchgate.net/publication/334050781_Standardisation_Challenges_for_Digital_Inputs_and_Outputs_of_Protection_Functions_in_IEC_60255_series About the authors place the probe leads of the multimeter on the 2 terminals of the relay's coil. It doesn't matter which probe is placed on which The Megger SVERKER650 is a powerful, compact and simple-to-use relay test set suitable for testing a wide variety of power, voltage and current relays. As a result, it is strongly recommended that relay manufacturers, relay test equipment manufacturers, and relay commissioning and maintenance engineers should be aware of functional standards and that endusers should be equally aware! End-users are expected to create user profiles which include acceptance criteria and requirements relating to their specific applications. However, when creating these profiles, the users will be guided by the information and definitions contained in the standards [1] and [2]. Additionally, users could adopt a subset of the standardised tests described in the IEC 60255-1xx series as the basis for formulating their acceptance tests. In fact, it is not uncommon to see factory acceptance tests directly referring to, or at least inspired by, IEC 60255-1xx series standards.