Low-Power Instrument Transformers and Energy Meters: Opportunities and Obstacles

IF 1.6 4区工程技术 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Instrumentation & Measurement Magazine Pub Date : 2023-06-01 DOI:10.1109/MIM.2023.10146561

A. Mingotti, C. Betti, L. Peretto, R. Tinarelli

引用次数: 1

Abstract

Low-Power Instrument Transformers (LPITs) are becoming the preferred measurement device in the medium voltage (MV) distribution network (DN). They have several benefits compared to legacy solutions. However, the adoption of LPITs results in the need for adapting the grid and its assets to accept them. One practical example is using LPITs as the current and voltage source for energy meters (EMs), which are also used for billing purposes. The resulting measurement chain introduces several metrological challenges that must be studied and investigated. Therefore, in this work, the scenarios of LPITs and energy meters are introduced along with the latest relevant international standards. Afterwards, the opportunities and obstacles due to the implementation of the LPIT plus energy meter measurement chain are discussed. The discussion focuses on metrological requirements, accuracy evaluation, target uncertainty, and influence quantities affecting the performance of the devices.

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低功率仪器变压器和电能表:机遇和障碍

低功率仪表变压器（LPIT）正成为中压配电网（DN）中首选的测量设备。与传统解决方案相比，它们有几个优点。然而，LPIT的采用导致需要调整电网及其资产以接受它们。一个实际的例子是使用LPIT作为电表（EM）的电流和电压源，电表也用于计费目的。由此产生的测量链引入了几个必须研究和调查的计量挑战。因此，在这项工作中，介绍了LPIT和电表的场景以及最新的相关国际标准。然后，讨论了LPIT+电能表测量链实施带来的机遇和障碍。讨论的重点是计量要求、精度评估、目标不确定度以及影响设备性能的影响量。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Instrumentation & Measurement Magazine 工程技术-工程：电子与电气

CiteScore

4.20

自引率

4.80%

发文量

147

审稿时长

>12 weeks

期刊介绍： IEEE Instrumentation & Measurement Magazine is a bimonthly publication. It publishes in February, April, June, August, October, and December of each year. The magazine covers a wide variety of topics in instrumentation, measurement, and systems that measure or instrument equipment or other systems. The magazine has the goal of providing readable introductions and overviews of technology in instrumentation and measurement to a wide engineering audience. It does this through articles, tutorials, columns, and departments. Its goal is to cross disciplines to encourage further research and development in instrumentation and measurement.