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1、 RET650定值清单及静态测试报告 2009/12/191. 差动保护1.1差动定值相关清单配置部分_全局基准定值,装置名牌, 差动定值Power systemPrimary values注释定值单位整定范围PRIMVAL: 1Frequency频率50.0Hz50.060.0PhaseRotation相序Normal=L1L2L3Global base valuesGBASVAL: 1基准组1UBase基准电压220.00kV0.052000.00IBase基准电流328A199999SBase基准容量125MVA150000GBASVAL: 2UBase110.00kV0.052000.
2、00IBase656A199999SBase125MVA150000GBASVAL: 3UBase11.00kV0.052000.00IBase1575A199999SBase30MVA150000GBASVAL: 4UBase132.00kV0.052000.00IBase1000A199999SBase229MVA150000GBASVAL: 5UBase132.00kV0.052000.00IBase1000A199999SBase229MVA150000GBASVAL: 6UBase132.00kV0.052000.00IBase1000A199999SBase229MVA150000
3、Identifiers装置标识TERMINALID: 1StationName厂站名称ABB18 character(s)StationNumber0099999ObjectName设备名称RET650-A0518 character(s)ObjectNumber0099999UnitName继电器名称RET65018 character(s)UnitNumber0099999Application Configuration应用功能DIFF_PROT差动保护Differential注释定值单位整定范围T3WPDIF: 1GlobalBaseSelW1W1基准选择116GlobalBaseSe
4、lW2W2基准选择216GlobalBaseSelW3W3基准选择316ConnectTypeW1W1接线方式WYE (Y)ConnectTypeW2W2接线方式WYE (Y)ConnectTypeW3W3接线方式Delta (D)ClockNumberW2W2钟点数0 0 degClockNumberW3W3钟点数11 30 deg leadZSCurrSubtrW1W1零流消除OnZSCurrSubtrW2W2零流消除OnZSCurrSubtrW3W3零流消除OnOperation投退控制OnIdMin最小动作电流0.30IB0.050.60EndSection1拐点11.25IB0.20
5、1.50EndSection2拐点23.00IB1.0010.00SlopeSection2斜率240.0%10.050.0SlopeSection3斜率380.0%30.0100.0IdUnre差速断电流10.00IB1.0050.00I2/I1Ratio二次谐波制动系数15.0%5.0100.0I5/I1Ratio五次谐波制动系数25.0%5.0100.0CrossBlockEn交叉闭锁投退OnNegSeqDiffEn负序判别元件投退OnIMinNegSeq负序元件门槛电流0.10IB0.020.20NegSeqROA负序元件动作角60.0Deg30.090.0SOTFModeSOTF投退
6、OffIDiffAlarm差流告警定值0.08IB0.051.00tAlarmDelay差流告警延时10.000s0.00060.000配置部分的CT变比如下：W1 6001A；W2 10001A；W3 20001A，所有CT接地点指向设备（极性指向各侧母线）；W1中性点CT变比为6001A (EFPTOC1, EFPIOC1)，二次额定为1A配置部分的PT变比如下：W1 2200.1kV；W2 1100.1kV；W3 11.00.1kV，W2中性点PT变比为110/0.1kV(ROVPTOV)，二次额定为100V。 附录: 差动动作电流值计算IdMin= 30%IB（IB为HV额定电流，LV
7、侧为折算到与HV等容量的电流）各侧二次额定电流:W1 side. Ir 2= 328A/600=0.547AW2 side. Ir 2=656A/1000=0.656AW3 side. Ir 2= 1575A/2000=0.788A差动电流计算公式(说明书) ( W1-HV Y-connection; W2 Delta-Connection “ZSCSUB=On” )根据公式 3：假定三相短路，差动动作电流计算：Y side: IDL1 =(1/3)*(2IL1_W1- IL2_W1 IL3_W1) = IL1_W1Delta side: IDL1 =(1/1.732)*(-IL1_W3+ I
8、L3_W3) = IL1_W1三相短路各侧的动作电流： Isec.w1.3ph = (Sr1/Sr1)*Ir.w1 * 0.3 / 600 =0.164A; (W1) Isec.w2.3ph = (Sr1/Sr2)*Ir.w2 * 0.3 / 1000=0.1968A; (W2) Isec.w3.3ph = (Sr1/Sr3)*Ir.w3* 0.3 / 2000=(12.5/3)*0.788*30%=0.984A. (W3)假定两相短路，差动动作电流计算： Y side: IL1_W1=IDL1Delta side: 2/1.732*IL1_W1= IDL1 then IL1_W2=0.866
9、*IDL1两相短路，各侧的动作电流：（Y侧与三相短路电流相同，三角形侧缩小到0.866倍）.Isec.w1.2ph= Isec.w1.3ph = 0.164A; Isec.w2.2ph= Isec.w2.3ph = 0.1968A; Isec.w3.2ph= Isec.w3.3ph*0.866 = 0.852A.假定单相短路，差动动作电流计算：Y side: (2/3)*IL1_W1=IDL1then L1_W1=1.5*IDL1Delta side:(1/1.732)IL1_W1=IDL1 then L1_W1=1.732*IDL1单相短路，各侧的动作电流：（Y侧是三相短路的1.5倍，三角形
10、侧扩大到1.732倍） Isec.w1.1ph= Isec.w1.3ph*1.5 = 0.246A; Isec.w2.1ph= Isec.w2.3ph*1.5 = 0.295A; Isec.w3.1ph= Isec.w3.3ph*1.732 = 1.704A.*在差动保护的定值项 “ZSCSUB=Off”时，Y侧单相故障动作电流与三相故障时一样;三角形侧不影响。1.2差动动作值Id.Min测试* W1:HV ,W2:MV, W3:LV故障相 计算值 测试值HVMVLVHVMVLVZSCurrSubtrOnOnOnOnOnOnA0.2460.2951.7040.2460.2941.694B0.2
11、460.2951.7040.2460.2941.694C0.2460.2951.7040.2450.2941.692AB0.1640.1970.8520.1640.1960.848BC0.1640.1970.8520.1640.1960.848CA0.1640.1970.8520.1640.1960.846ABC0.1640.1970.9840.1640.1960.980故障相 计算值 测试值HVMVLVHVMVLVZSCurrSubtrOffOffOffOffOffOffA0.1640.1971.7040.1640.1981.696B0.1640.1971.7040.1630.1991.69
12、6C0.1640.1971.7040.1640.1991.695AB0.1640.1970.8520.1640.1980.847BC0.1640.1970.8520.1630.1990.848CA0.1640.1970.8520.1630.1990.846ABC0.1640.1970.9840.1640.1990.978Max Error: (0.852-0.846)/0.852 = 1.0%ZSCurrSubtr：W1,W2,W3的减零流功能投退差动动作时间测试 (故障电流Id=2* IdMin的条件下测试) 故障相HV动作时间MV动作时间LV动作时间A37.537.6B38.536.6C39.940.71.4差动速断动作值测试（Unres
