A new deal for safety and quality on MV networks
A new deal for safety and quality on MV networks
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DOI：
10.1109/61.634156
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发表时间：
1997-10
影响因子：
4.4
通讯作者：
D. Griffel;V. Leitloff;Y. Harmand;J. Bergeal
中科院分区：
文献类型：
--
作者：
D. Griffel;V. Leitloff;Y. Harmand;J. Bergeal
中性点接地技术在世界范围内广泛应用于中压配电网。这是因为一个特定接地解决方案的实施是几个目标之间妥协的结果，这些目标有时是相互矛盾的。正确的折衷方案取决于网络的物理特性、负载的类型和密度以及对安全和供电质量的重视程度。数字保护和自动控制系统的使用也可能对选择标准产生影响。本文的作者总结了主要的可能的替代方案，并可能导致公用事业修改其原始选择的原因。EDF的发展进行了分析，并指出由此产生的潜在利益的安全性和供电质量。分析的结果是决定改变农村中压网络的中性点接地。
Various neutral grounding techniques are applied in medium voltage distribution networks throughout the world. This is due to the fact that implementation of a particular grounding solution is the result of compromise between several objectives which are sometimes contradictory. The right compromise depends on the physical characteristics of the networks, type and density of load and the importance awarded to safety and power supply quality. Use of digital protection and automatic control systems may also have an impact on selection criteria. The authors of this paper summarize the major possible alternatives and the reasons which may lead a utility to modify its original choices. Developments by EDF are analyzed and the resulting potential benefits in terms of safety and power supply quality are indicated. The result of this analysis is the decision to change the neutral earthing of rural MV networks.