A non-conventional instrument transformer

作者：Mocnik Jure^*; Humar Janez; Zemva Andrej

来源：Measurement, 2013, 46(10): 4114-4120.

DOI：10.1016/j.measurement.2013.08.011

• Extended merging unit
• High-voltage power network
• IEC61850
• Low-power current transformers
• Non-conventional instrument transformer

The paper describes a non-conventional instrument transformer (NCIT) offering the possibility of adapting the measuring points in the high-voltage power network to new states as a result of the impact of intermittent renewable energy resources, harmonic distortions evoked by switching apparatus and smart-grid systems, enabling prompt and accurate measurements in a wider frequency range at a higher dynamics, and providing more reliable operation of the power network. The features of the proposed NCIT are in using the low-power current transformers (LPCT) and in the measuring and processing electronics which are situated partially on the potential of high voltage (HV) line and partially on earth potential.

• 出版日期2013-12