Electronic Specialties 191 Relay Buddy Pro Test Kit

Product Information

In general, testing of traveling wave protection functions were not carried out when commissioning relays as this proved very difficult. OMICRON has therefore developed the TWX1 accessory, the world's first solution that makes testing of traveling wave protection functions possible in an uncomplicated manner even with conventional protection test sets. 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. IEC 60255-187-3, Functional requirements for biased (percentage) differential relays for transmission lines

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. 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 Made for use in both high voltage substations and industrial conditions, the SVERKER650 includes a built-in capacitor to provide phase shift when testing directional protective relays and also has built-in resistors to divide voltages as and when needed. It can be seen that the scope is very broad and, as a result, there will be many standards developed in this series. Some of these have already been published while others are in various stages of development. All these standards have a common objective: they specify minimum functional requirements, testing methodologies and methods of performance evaluation, as well as the format for publishing the test results for each function. The aim is to help users in evaluating protection functions on a standardised basis with respect to relay selection, setting, commissioning, application, and operation. The Megger SVERKER780 relay tester is equipped with every measurement function you'll need, all shown in real time on the built-in LCD digital display. This powerful measurement section can display (in addition to time, voltage and current) Z, R, X, S, P, Q, phase angle and cos φ. An integrated voltmeter and ammeter are included for measurements, with the possibility to use the voltmeter as a second ammeter (ideal for testing differential relays).several megohms (MΩ)) from the NO (Normally Open) terminal to the COM terminal. This is because the NO It is worth mentioning that the standards do not specifically detail commissioning or routine tests for protection functions. Nevertheless, several clauses can be applied to these tests and doing so will help to minimise the risk of misunderstandings about validation in the field compared with the performance declared by the relay manufacturer or requested by the user, as previously explained. Also, manufacturers of relay test equipment are expected to implement the definitions and test methodologies detailed in the standards, in relation to both commissioning and maintenance tests.

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 NC terminal is normally closed, meaning there should be direct continuity from the NC terminal to the

A distinction can be made between the parameter-based approach for protection relay testing (currently the dominant approach), and the innovative system-based approach. Furthermore, a differentiation can be made between manual and automated execution. These diagnostic methods determine whether a relay's coil is collapsing while switching positions during operation. correctly. If you read a very low resistance and very high resistance, the coil is either shorted or terminal is normally open, meaning there's no direct connection from the NO terminal to the COM terminalRelay testing provides an affordable solution to protect important electrical equipment components and avoid the expense of downtime or repair associated with equipment failure. A relay coil's resistance always comes with the datasheet of the relay. For example, relay coil resistances Sampled Values are used to transmit analog values of the energy system, for example from current and voltage transformers, via a digital network. Status information is exchanged between the devices via GOOSE messages, while signals are transmitted to the SCADA system using client/server communication (MMS). 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. 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.