发布时间 : 星期日 文章LCT发电机励磁操作说明书0708（中英文版）更新完毕开始阅读f40d328858fafab069dc02fc
LCT微机励磁控制器 操作说明书 LCT Digital Excitation Controller User’s Guide 取消键Quit Key（取消ESC）：退回上一级菜单。Back to the previous menu.
确认键Enter Key（确认ENTER）：按一次，进入修改状态。（参照 5.3.2.1.1节） Press a time,go into the modifying state. （Refer to section 5.3.2.1.1）. 5．3．2．1．8 过流限制参数 Over Excitation Limit Parameters：
⑴ SuperEXC U Limit MUL: 2.0 ⑴强励电压限制倍数: 2.0 ⑵ TEMP OverEXC I MUL: 2.20 ⑵瞬时过励保护电流倍数: 2.20 ⑶快速过流限制电流倍数: 1.30 ⑶ FOCL I MUL: 1.30 ⑷过流限制电流倍数: 1.06 ⑷ OCL I MUL: 1.06
⑸强励电流倍数: 2.00 ⑹过励保护反时限(S): 09.0 ⑺过流限制反时限(S): 08.0 ⑻允许再强励反时限(S): 07.8
⑸ SuperEXC I MUL: 2.00 ⑹ OverEXC INV T(S): 09.0 ⑺ OC Limit INV T(S): 08.0 ⑻ ReSuperEXC INV T(S): 07.8 ⑼闭锁增励反时限(S): 05.0 ⑽解除闭锁增励反时限(S): 04.0
⑼ LAT INCEXC INV T(S): 05.0 ⑽ UNLAT INCEXC INV T(S): 04.0
过流限制及动作的原则是： Over current limit and protect principle is: a）转子电流Ifd(或调节器输出总电流Id)大于“瞬时过励保护电流倍数”时，过励保护瞬时动作。When rotor current Ifd (or regulator output current Id) is larger than “TEMP OverEXC I MUL (instantaneous over excitation protecting current multiple)”, over excitation protection operate imediately.
b）转子电流Ifd(或调节器输出总电流Id)大于“过流限制电流倍数”或转子电流Ifd(或调节器输出总电流Id)小于额定电流一倍时计算反时限等效时间：When rotor current Ifd (or regulator output current Id) is larger than “OCL I MUL (over excitation current limit multiple)” or rotor current Ifd (or regulator output current Id) is less than rated excitation current calculate in inverse time limit’s equal time:
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detg=∑(Ifd-1) 或or detq=∑(Id-1)
c）转子电流Ifd(或调节器输出总电流Id)大于1并且小于“过流限制电流倍数”，detq保持不变。 Rotor current Ifd (or regulator output current Id) is larger than
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LCT微机励磁控制器 操作说明书 LCT Digital Excitation Controller User’s Guide rated excitation current and less than “OCL I MUL (over excitation current limit multiple)”, detq will hold the line.
d）若detq大于等于“增励闭锁反时限”，闭锁增励操作。 If detq is larger or equal to “LAT INCEXC INV T (increase excitation blocking in inverse time limit)”, blocking increase excitation operates.
e）当detq小于等于“解除增励闭锁反时限”，解除闭锁增励操作。 When detq is less than or equal to “UNLAT INCEXC INV T (increase excitation unblocking in inverse time limit)”, unblocking increase excitation operates.
f）若detq大于等于“过流限制反时限”，并且在转子电流Ifd(或调节器输出总电流Id)大于“快速过流限制电流倍数”的情况下执行固定转子电流(或调节器输出总电流)操作，把转子电流(或调节器输出总电流)控制在“过流限制电流倍数”以内；在转子电流Ifd(或调节器输出总电流Id)小于“快速过流限制电流倍数”的情况下，自动执行减励操作直至满足转子电流(或调节器输出总电流)小于“过流限制电流倍数”。 If derq is larger or equal to “OC Limit INV T (over current excitation limit in inverse time limit)”, and in the condition that rotor current Ifd(or regulator output current Id) is larger than “FOCL I MUL (fast limit excitation current multiple)” carry out constant rotor current (or regulator output current) operation, put rotor current (or regulator output current) less than “OCL I MUL (over excitation current limit multiple)”；in the condition that rotor current Ifd(or regulator output current Id) is less than “FOCL I MUL (fast limit excitation current multiple)”, autoly carry out excitation reduce operation until rotor current (or regulator output current) is less “OCL I MUL (over excitation current limit multiple)”.
g）当detq小于等于“允许再强励反时限”，则可再次强励。 When detq is less than or equal to “ReSuperEXC INV T (admitting resuper-excitation inverse time limit)”, you can resuper-excitation again.
i）如detq大于“过励保护反时限”，延时1秒过励保护动作。If detq is larger than “OverEXC INV T (over excitation protecting in inverse time limit)”, it will delay 1 second to do over excitation protecting operation.
j）参数整定时遵循如下原则：“瞬时过励保护电流倍数”>“强励电流倍数”>“快速过流限制电流倍数”>“过流限制电流倍数”；“过励保护反时限”>“过流限制反时限”>“允许再强励反时限”>“增励闭锁反时限”>“解除增励闭锁反时限”。 When parameters regulation keep to following principle: “TEMP OverEXC I MUL (instantaneous over excitation protecting current multiple)”> “SuperEXC I MUL (super-excitation current multiple)”> “FOCL I MUL (fast limit excitation current multiple)” >“OCL I MUL (over excitation current limit multiple)”； “OverEXC INV T (over excitation protecting in inverse time limit)”> “OC Limit INV T (over current excitation limit in inverse time limit)”>“ReSuperEXC INV T (admitting resuper-excitation inverse time limit)”>“LAT INCEXC INV T (increase excitation blocking in inverse time limit)”>“UNLAT INCEXC INV T (increase excitation unblocking in inverse time limit)”.
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LCT微机励磁控制器 操作说明书 LCT Digital Excitation Controller User’s Guide 操作：Keyborad operation:
上键UP Key（^）：向上移动光标。Up the cursor . 下键Down Key（v）：向下移动光标。Down the cursor .
取消键Quit Key（取消ESC）：退回上一级菜单。Back to the previous menu.
确认键Enter Key（确认ENTER）：按一次，进入修改状态。（参照 5.3.2.1.1节） Press a time,go into the modifying state. （Refer to section 5.3.2.1.1）. 5．3．2．1．9 发电机调差 Cross Current Compensation：
⑴ GEN SE Quotiety(%): +02.0 ⑴发电机调差系数（%）: +02.0
操作：Keyborad operation:
取消键Quit Key（取消ESC）：退回上一级菜单。Back to the previous menu.
确认键Enter Key（确认ENTER）：按一次，进入修改状态。（参照 5.3.2.1.1节） Press a time,go into the modifying state. （Refer to section 5.3.2.1.1）. 5．3．2．1．10 置位及增减磁速度 Setting and the Speed of Excitation
Raise and Lower：
⑴置位值（﹪Ｖfn）: 96 ⑴ Set Value（%Vfn）: 96
⑵起励控制值（﹪Ｖfn）: 00 ⑵ StEXC CON Value（%Vfn）: 00 ⑶增减磁速度（﹪Ｖfn/s）: 0.30 ⑶ INC&DECEXC Sp（%Vfn/s）: 0.30
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LCT微机励磁控制器 操作说明书 LCT Digital Excitation Controller User’s Guide “置位值”为通过面板就地“置位”开关或中控“起励”按扭快速建立发电机电压的值；“起励控制值”为自并励机组起励时要求发电机达到的值；“增减磁速度”在每秒0.99%与0.3%间可调。
“Set Value” quikly builds up generator voltage value by local “EXC-S ON” breaker of the faceboard or remote “start excitation” button； “StEXC CON Value(start excitation controlling value)” is the value which starting excitation it requires generator to reach in static excitation: “INC&DECEXC Sp (raise or lower excitation speed)” can be regulated between 0.99% and 0.3%.
另外，当发电机电压低于起励控制值时，控制器不发“脉冲出错”信号。In addition, when generator voltage is less than start “StEXC CON Value(start excitation controlling value)”, controller will not send out “pulse error” signal.
操作：Keyborad operation:
上键UP Key（^）：向上移动光标。Up the cursor . 下键Down Key（v）：向下移动光标。Down the cursor .
取消键Quit Key（取消ESC）：退回上一级菜单。Back to the previous menu.
确认键Enter Key（确认ENTER）：按一次，进入修改状态。（参照 5.3.2.1.1节） Press a time,go into the modifying state. （Refer to section 5.3.2.1.1）. 5．3．2．1．11 伏赫限制参数 V/HZ Limit Parameters：
⑴伏赫限制值： 1.06 ⑴ V/HZ Limit Value： 1.06 ⑵第一点伏赫保护值： 1.10 ⑶第二点伏赫保护值： 1.20 ⑷第一点保护延时时间（S）: 55.0 ⑵ 1st Point V/HZ PV: 1.10 ⑶ 2nd Point V/HZ PV: 1.20 ⑷ 1st Point PDT（S）: 55.0
⑸第二点保护延时时间(S): 02.0 ⑹每周波脉冲数: 61A8H ⑸ 2nd Point PDT(S): 02.0 ⑹ Per Cycle PN: 61A8H
在要求伏赫保护分两段时有第一、二点伏赫保护值，一般情况下“第一点伏赫保护值”小于“第二点伏赫保护值”，“第一点保护延时时间”大于“第一点保护延时时间”；其他情况下可设置“第一点伏赫保护值”大于或等于“第二点伏赫保护值”。
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