3～110kv.html

电气专业设计规范

lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>的时间级差。</span><span lang=ZH-CN
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'>2.6<span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>按下列原则考虑距离保护振荡闭锁装置的运行整定。</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'>2.6.1<span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span>35kV<span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>及以下线路距离保护一般不考虑系统振荡误动问题。</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'>2.6.2<span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>下列情况的</span>66<span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>～</span>110kV<span lang=ZH-CN style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>线路距离保护不应经振荡闭锁：</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span>a.<span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>单侧电源线路的距离保护；</span><span lang=ZH-CN style='font-family:宋体;
mso-hansi-font-family:"Times New Roman"'> </span><span style='mso-bidi-font-size:
10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span>b.<span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>在现有可能的运行方式下，无振荡可能的双侧电源线路的距离保护；</span><span lang=ZH-CN
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span>c.<span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>躲过振荡中心的距离保护段；</span><span lang=ZH-CN style='font-family:
宋体;mso-hansi-font-family:"Times New Roman"'> </span><span style='mso-bidi-font-size:
10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span>d.<span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>预定作为解列线路的距离保护；</span><span lang=ZH-CN style='font-family:
宋体;mso-hansi-font-family:"Times New Roman"'> </span><span style='mso-bidi-font-size:
10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span>e.<span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>动作时间不小于</span>0.5s<span lang=ZH-CN style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>的距离Ⅰ段、不小于</span>1.0s<span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>的距离Ⅱ段和不小于</span>1.5s<span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>的距离Ⅲ段。</span><span lang=ZH-CN style='font-family:宋体;
mso-hansi-font-family:"Times New Roman"'> </span><span style='mso-bidi-font-size:
10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;tab-stops:right 186.0pt;
mso-layout-grid-align:none'><span style='font-family:宋体;mso-hansi-font-family:
"Times New Roman"'><span style="mso-spacerun: yes">&nbsp; </span><span
style='color:fuchsia'><span style="mso-spacerun: yes">&nbsp;&nbsp;</span></span></span><span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman";color:fuchsia'>注：系统最长振荡周期按</span><span
style='color:fuchsia'>1.5s</span><span lang=ZH-CN style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman";
color:fuchsia'>考虑。</span><span lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:
"Times New Roman";color:fuchsia'> </span><span style='mso-bidi-font-size:10.0pt;
color:fuchsia'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'>2.6.3<span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>有振荡时可能误动的</span>66<span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>～</span>110kV<span lang=ZH-CN style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>线路距离保护装置一般应经振荡闭锁控制，但在重合闸前和重合闸后，均应有不经振荡闭锁控制的保护段。</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'>2.6.4<span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>有振荡误动可能的</span>66<span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>～</span>110kV<span lang=ZH-CN style='font-family:宋体;
mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman"'>线路的相电流速断定值应可靠躲过线路振荡电流。</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'>2.6.5<span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>在单相接地故障转换为三相故障，或在系统振荡过程中发生不接地的相间故障时，可适当降低对保护装置快速性的要求，但必须保证可靠切除故障，允许个别的相邻线路相间距离保护无选择性跳闸。</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'>2.7<span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span>110kV<span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>及以下电网均采用三相重合闸，自动重合闸方式的选定，应根据电网结构、系统稳定要求、发输电设备的承受能力等因素合理地考虑。</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'>2.7.1<span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>单侧电源线路选用一般重合闸方式。如保护采用前加速方式，为补救相邻线路速动段保护的无选择性动作，则宜选用顺序重合闸方式。</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span><span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>当断路器断流容量允许时，单侧电源终端线路也可采用两次重合闸方式。</span><span lang=ZH-CN
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'>2.7.2<span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
lang=ZH-CN style='font-family:宋体;mso-ascii-font-family:"Times New Roman";
mso-hansi-font-family:"Times New Roman"'>双侧电源线路选用一侧检无压，另一侧检同步重合闸方式，也可酌情选用下列重合闸方式：</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span>a.<span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>带地区电源的主网终端线路，宜选用解列重合闸方式，终端线路发生故障，在地区电源解列后，主网侧检无压重合；</span><span
lang=ZH-CN style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span
style="mso-spacerun: yes">&nbsp;&nbsp;&nbsp; </span></span>b.<span lang=ZH-CN
style='font-family:宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:
"Times New Roman"'>双侧电源单回线路也可选用解列重合闸方式。</span><span lang=ZH-CN
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'> </span><span
style='mso-bidi-font-size:10.0pt'><o:p></o:p></span></p>

<p class=MsoNormal style='line-height:18.0pt;mso-layout-grid-align:none'><span
style='font-family:宋体;mso-hansi-font-family:"Times New Roman"'><span