Discussion on Common Problems in Current Protection Application to 110 kV Power Supply System

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- Discussion on Common Problems in Current Protection Application to 110 kV Power Supply System
- Issue 4, Pages: 69-72(2006)
- 作者机构：
  
  德阳电业局城区供电局,四川,德阳,618000
- 作者简介：
- 基金信息：
- DOI：
  CLC： TM771
- Published：2006
- 稿件说明：
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[1]陈曦.10kV供电系统电流保护应用中常见问题的探讨[J].四川电力技术,2006(04):69-72.

Chen Xi. Discussion on Common Problems in Current Protection Application to 110 kV Power Supply System[J]. 2006, (4): 69-72.
[1]陈曦.10kV供电系统电流保护应用中常见问题的探讨[J].四川电力技术,2006(04):69-72. DOI：

Chen Xi. Discussion on Common Problems in Current Protection Application to 110 kV Power Supply System[J]. 2006, (4): 69-72. DOI：

随着电力系统的建设

系统短路阻抗变小

配变容量和数量不断增大。电网规模不断扩大的同时

也为10 kV供电系统带来了新的课题。针对TA饱和、站用变保护、励磁涌流过大和保护整定的问题

分别从理论上进行分析

提出了相应的解决办法。

As electric power grid is built

the short-circuit impedance of power system becomes smaller

and the number and capacity of distribution transformers are increased.When the power grid becomes larger

some new problems occur in 10kV power supply system.These problems caused by TA saturation

station transformer protection

excessive excitation inrush current and protection setting are analyzed in theory respectively

and the corresponding technical measures are proposed.

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