OMICRON Electronics GmbH Austria

Austria

OMICRON Electronics GmbH Austria

Austria
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Ji N.,OMICRON Electronics Asia Ltd Hong Kong | Geiger S.,OMICRON Electronics GmbH Austria
China International Conference on Electricity Distribution, CICED | Year: 2014

Reclosers and distribution automation solutions have been increasingly implemented into the distribution network in the utilities in East Asia and Western Pacific countries. Recloser controls nowadays offer many functions that are similar to the protection relays in the substation. This paper aims at stating the increasing need of advanced recloser control system in modern power system, and further extends the discussion to explain the importance and convenience of testing recloser controls during commissioning and maintenance in the field. © 2014 IEEE.


Bastigkeit B.,OMICRON Electronics GmbH Austria | Bastigkeit B.,OMICRON Electronics Asia Ltd Hong Kong | Pritchard C.,OMICRON Electronics GmbH Austria | Pritchard C.,OMICRON Electronics Asia Ltd Hong Kong | And 4 more authors.
China International Conference on Electricity Distribution, CICED | Year: 2014

Due to the increasing complexity of our electrical power systems, the need for highly selective protection is increasingly being fulfilled by the use of teleprotection schemes or line differential protection. To test such protection systems properly, a distributed end-to-end test with synchronized injection is required. The first challenge for such a test is the correct calculation of the voltages and currents to inject at both (or even multiple) ends. Therefore, a simulation of the fault scenario based on the power system network, is needed which can deliver all of the required values. For the execution of an actual fault scenario (shot), a single software application which controls all test devices on both (or multiple) ends from a single PC, is much more convenient and productive than separate software applications, which have to be operated manually for synchronized injection. Controlling a remote test device is now possible using an existing Internet connection at each end of the test. © 2014 IEEE.


Kuntner R.,OMICRON Electronics GmbH Austria | Ji N.,OMICRON Electronics GmbH Austria
China International Conference on Electricity Distribution, CICED | Year: 2014

IEC 62586 was just released as the standard for functional and type test on power quality instruments. Together with the existing IEC61000-4-30 series standards, IEC 62586 completes the testing needs on development and calibration over power quality related devices. While the specified tests in this new standard could be challenging in terms of signal generation, the benefits to the power quality meter and protection relay industries are obvious. The purpose of this study is to share our understandings and experiences on the new IEC 62586 standards with a focus on the challenges and opportunities which the new IEC standards bring to the industry and utilities. At the end of our paper, the suggested methods of automatic testing is elaborated as well. © 2014 IEEE.

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