Figure 1: Importance of standardisation (recreated from original slide courtesy of https://www.slideshare.net/oeconsulting/standard-work-by-operationalexcellence-consulting)

Created with years of experience, the SVERKER 650's intuitive interface, powerful functionality and other features combine together to create a comprehensive system for fully testing virtually all types of single phase protection.terminal and the other probe on the NC Terminal. Make sure that you read a resistance of near 0Ω. If you do, then The power protection system is the guardian of the grid. It watches and safeguards via detection, automated decision-making, and (ability to) control. A protection component’s intelligence to discern when an anomaly is actionable and how to react is given by component settings and system design. Proper selection and application of protection components, such as relays, directly impact their dependability to function as planned. A relay’s ongoing performance is affected by the reliability and health of mechanical components (in the case of electromechanical relays), electronic circuits or components (static relays) and software (numerical relays). Testing provides a measure of a protection component(s)’s performance during commissioning and of its continued reliability throughout its use. Ultimately, testing gives assurances that vulnerabilities of the power grid and its components are not left exposed.

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. The International Electrotechnical Commission (IEC) is currently working on a new series of standards that covers the functional requirements of measuring relays and related equipment used to protect electrical transmission and distribution systems. The new protection relay functional standards are designated as the IEC 60255-1xx series. The standardisation of various test methodologies and measurement metrics promises benefits for the entire protection relay community. A total of fifty international experts from seventeen national committees of the IEC are working together to develop these standards. Andrea Bonetti of Megger actively represents Sweden on the committee and together with three other delegates graciously agreed to provide information about this important work. If faults are not located in time, they can lead to major equipment damage or possibly even failure. Both kits are basically identical - they are powerful, multifunctional relay testers which can easily be ported from testing point to testing point. The main difference between the 780 and the 750 is the 780 also includes continuous phase shift and adjustable frequency functions as well as a variable voltage source.correctly. If you read a very low resistance and very high resistance, the coil is either shorted or What about the end-users? Is it enough to specify “the relay protection devices shall be conformant to the applicable parts of the IEC 60255-1xx series of functional standards”? Well, that sentence is better than nothing. It ensures that the protection relays used in the system will at least have performed all the tests required in the standard and will also be covered by the essential declarations that relay manufacturers must provide. Unfortunately, however, including that sentence will not ensure that the protection relays match the requirements of the user’s application. But how can this be? Chair of IEC TC 38 and CENELEC TC 38 “Instrument transformers” and member of IECTC 38 WG 37 and WG 47. several megohms (MΩ)) from the NO (Normally Open) terminal to the COM terminal. This is because the NO