《单相三相电能表的EMC及其它测试测量摘自电磁兼容小小家.pdf》由会员分享，可在线阅读，更多相关《单相三相电能表的EMC及其它测试测量摘自电磁兼容小小家.pdf（6页珍藏版）》请在taowenge.com淘文阁网|工程机械CAD图纸|机械工程制图|CAD装配图下载|SolidWorks_CaTia_CAD_UG_PROE_设计图分享下载上搜索。
1、单相三相电能表的EMC 及其它测试测量及其它测试测量 摘自电磁兼容(EMC)小小家前言:做这一行也有一年多了,总是想总结一下,这几天就做了下面所说的项目很多,也是必须做的.我们目前已经几乎做全了,剩下的都是不重要的项目,如:防尘和防水试验耐热和阻燃试验阳光辐射试验.以供大家学习.试验项目没有按推荐的型式试验顺序来写,只是简要的列举了一下!实际测试中我们并没有按照标准来,是在标准的基础上上浮了10%的要求,EMC 这一块更是苛刻!引用标准：GB/T17883，GB/T17215，GB/T17882，GB/T17626，DL/T614 和 DL/T645。正文:试验和试验条件1.机械性能试验1.1
2、 弹簧锤试验0.22Nm0.05Nm 动能作用于表盖的外表面和端盖上,对嵌装式仪表,仅对其前面板上进行,表壳和端盖没有出现影响仪表功能的损坏并且不能接触到带电体.1.2 冲击试验按 GB/T2423.5 在下列条件下进行试验 仪表在非工作状态下,无包装 半波正弦脉冲 峰值加速度:15g/30g冲击时间:11ms/18ms 试验后,仪表不应出现损坏或信息改变,并能准确工作1.3 振动试验按 GB/T2423.10 在下列条件下进行试验 仪表非工作状态下,无包装 试验程序A频率范围:10Hz-150Hz交越频率:60 Hzf60 Hz 恒定加速度:0.5g/1.0g单点控制 每一轴向扫频周期数:1
3、0 试验后,仪表不应出现损坏或信息改变,并能按标准准确工作1.4 耐热和阻燃试验按 IEC695-2-1 1.5 防尘和防水试验按 IEC529 2 气候影响试验2.1 高温试验按 IEC60068-2-2 中规定 仪表为非工作条件下 温度:+25 2/+70 2 试验时间:72h 2.2 低温试验按 IEC60068-2-1 中规定 仪表为非工作条件下 温度:-20 3/-25 3 试验时间:72h 2.3 交变湿热试验按 IEC60068-2-30 规定 电压线路和辅助线路接参比电压 电流线路无电流 变化型式1上限温度:+40 2室内;+55 2室外 不采取特殊措施来排除表的潮气 试验周期
4、:6 周期试验后 24h 将仪表交付以下试验A:绝缘试验B:功能试验2.4 阳光辐射试验对 0.2S 0.5S 无要求3 电气要求试验3.1 功率消耗试验电压线路功耗:2W 10VA 电流线路功耗:1VA/5VA 3.2 电源电压影响电压降落和短时中断试验 电压线路和辅助线路接参比电压 电流线路无电流 电压中断和电压降落应依次施加于每一相上A)电压中断?U=100%;Tevent=1s;N=3 中断之间恢复时间为50ms B)电压中断?U=100%;Tevent=20ms;N=1 C)电压降落?U=50%;Tevent=60s;N=1 D)电压交变(多功能电能表)U=100%;T 升=T 降=
5、5s;N=3 E)电压交变(多功能电能表)U=100%;T 升=T 降=60s;N=3 试验后,计度器和测试输出不应产生xKWh 的变化x=10-6*m*Un*Imax m-测量单元数Un-参比电压,V Imax-最大电流,A 文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8
6、C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M
7、8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7
8、M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P
9、7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9
10、P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G
11、9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9
12、G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H93.3 短时过电流试验试验线路近似无感接线端保持电压,短时过电流依次施加在每一相后,在各电压线路通电条件下仪表恢复到初始温度(约 1h)0.5s,20Imax/0.5p;30Imax 作用后,仪表不应损坏,当回到初始工作时,仪表应正确工作,其误差改变量不超过规定值.3.4 自热影响试验电流线路无电流,电压线路接参比电压至少2h/1h 后,在电流线路中施加最大电流,在功率因数为 1 时,施加后立刻测量仪表误差,接着以足够短的时间间隔准确地画出
13、作为时间函数的误差变化曲线,此项试验至少进行1h,直至在 20min 内误差变化不应超过0.05%时为止.功率因数为0.5(滞后)时重复上述试验按规定测得的误差改变量不应超过规定限值.3.5 温升影响试验每一电流线路通最大电流,每一电压线路施加1.15 倍的参比电压,在环境温度为40时仪表外表面温升不应超过25K 试验时间:2h 3.6 绝缘性能试验3.6.1 脉冲电压试验脉冲电压试验 脉冲波形:1.2/50us电压上升时间:30%电压下降时间:20%电源阻抗:500 欧姆 50 欧姆 电源能量:0.5J0.05J试验电压:60-0.6KV 每次试验对一个极施加10 次脉冲电压,然后对每一个极
14、重复试验,脉冲之间的时间间隔最少为 3s,不应发生飞弧,击穿放电和爆破现象.3.6.2 交流电压试验试验电压近似正弦波,频率在 45HZ-65Hz,施加 1min,电源容量至少为500VA.试验中不应发生飞弧,击穿放电和爆破现象试验电压:2KV/4KV/40V 3.7 接地故障试验仅适用于在带接地故障抑制器电网上使用的仪表对三线中的某一线上进行模拟接地故障状态,各线电压提高至标称电压的1.1 倍,历时 4h.试验时,仪表的中性端与仪表试验设备MTE 的地端断开,并与 MTE 中模拟接地故障的一端连接.试验时,电流线路设备设定电流为0.5I,功率因数为1,对称性负载试验后,仪表不应出现损坏,并且
15、准确工作,误差改变量不超过限值.4 电磁电磁兼容试验兼容试验EMC 4.1 静电放电抗扰度试验按 GB/T17626.2 接触放电:8KV N=10 A)仪表在非工作状态下B)仪表在工作条件下加参比电压,电流端开路空气放电:15KV 文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P
16、7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9
17、P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G
18、9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9
19、G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG
20、9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:C
21、G9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:
22、CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9国标中未要求,实际测试中要做(内部)在静电放电作用下,计度器不应产生大于xKWh 的变化.4.2 高频电磁场抗扰度试验按 GB/T17626.3 规定 电压和辅助线路加参比电压 频率范围:80MHz 1000MHz严酷等级:3试验电压:10V/M A)电流线路无电流,电流应开路在高频作用下,计度器.测试输出不应产生大于xKwh 的变化B)Ib/In,sin=1,敏感频率或主振频率下,误差改变量应在规定限值内.4.3 快速瞬变脉冲群试验
23、按 GB/T17626.4 规定A)Ib/In,sin=1电压线路和辅助线路加参比电压 电压和电流线路的试验电压:2KV试验时间:在 10min 内等间隔地作用三次,每次 1s 试验时,仪表的记录值相对于同一负载条件下,无脉冲群作用时记录值的改变,不超过规定限值B)电流线路无电流,电流端开路 电压和辅助线路加参比电压 试验电压:4KV试验时间:60s 在脉冲群作用下,计度器不应产生大于xKWh 的变化,测试输出也不应产生大于xKWh 的变化,且仪表能连续准确工作.C)电流线路无电流,电流端开路,使用电容耦合夹将试验电压耦合至线路上 电压线路和辅助线路加参比电压 耦合在输入/输出信号,数据,控制
24、及通信线路的试验电压:1KV试验时间:60s 在脉冲群作用下,计度器不应产生大于xKWh 的变化,测试输出也不应产生大于xKWh 的变化,且仪表能连续准确工作.4.4 浪涌抗扰度试验按 GB/T17626.5 规定试验电压施加于下列线路间:电压线路端之间 正常工作时与电压线路分离的辅助线路各端之间 电压线路各端与地之间 正常工作时与电压线路分离的辅助线路各端之间 正常工作时与电压线路分离的电流线路与地之间电流线路无电流,电流端开路 电压线路和辅助线路加参比电压 极性:正负 试验次数:正负极性各5 次 重复率:1 次/分钟 文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A
25、1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4
26、A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ
27、4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 Z
28、Z4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5
29、ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5
30、 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q
31、5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9波形:1.2/50us A)线路端之间 严酷等级:3试验电压:2KV B)线路端与地之间 严酷等级:4试验电压:4KV 在浪涌作用下,电能表不应
32、出现损坏或信息的改变,并能正常工作。计度器测试输出不应产生大于 xKWh 的脉冲信号量.4.5 无线电干扰的测量无线电干扰的试验应按GB9254,B 级设备要求进行A)当频率在0.1530MHz 的范围内,传导干扰电压允许值允许值(dB(uV)频段(MHZ)峰值平均值0.150.50 6656 5646 0.505 56 46 5 30 60 50 B)当频率在30MHZ 300MHZ 范围内,测量距离为10m 的国辐射干扰电压允许值频段(MHZ)峰值允许值(dB(uV/m)30230 30 2301000 37 5 准确度试验5.1 电流引起的误差极限在参比条件下,其百分数误差不应超过规定值
33、5.2 常数试验测试输出与计度器的指示值的比率应与铭牌标志一致5.3 起动试验在规定电流条件下,仪表应能起动,并连续记录.5.4 潜动试验当电能表的电流线路中无电流,而加于电压线路的电压为额定值的115%时,其测试输出端应不产生多于一个的脉冲.5.5 环境温度影响在 0-40的温度条件下进行,应在 20K 温度范围内测定给定的温度的平均湿度系数,平均温度系数不应超过规定的限值.5.6 影响量试验5.6.1 电压影响试验压影响试验 电压改变:10%功率因数:1.0;0.5L;0.5C(仅对无功)电流范围:0.05IbImax 电能表的电压影响误差改变量不应超过规定值5.6.2 频率影响试验频率影
34、响试验 频率改变:5%/2%功率因数:1.0;0.5L;0.5C(仅对无功)电流范围:0.05IbImax 文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5
35、 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q
36、5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10
37、Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T1
38、0Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T
39、10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8
40、T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C
41、8T10Q5 ZZ4A1N2I5H9电能表的频率影响误差改变量不应超过规定值5.6.3 谐波影响试验3 次谐波:10%Un,10%Ib 5 次谐波:10%Un,40%Ib(GB/T17215)电能表的谐波影响误差改变量不应超过规定值(详见相关标准)5.6.4 逆相序影响试验仅适用于三相有功电能表 功率因数:1.0 电流范围:0.1Ib 电能表的逆相序影响误差改变量不应超过规定值5.6.5 电压不平衡影响试验仅适用于三相有功电能表 功率因数:1.0 电流范围:0.1Ib 电能表的电压不平衡影响误差改变量不应超过规定值5.6.6 外磁场影响试验A)交流感应磁场影响试验在电能表电压线路加100%Un
42、,电流线路通以Ib,功率因数为1,并置在与其参比电压相同频率的,随时间正弦变化的,强度为0.5mT(400A/m)的外磁场中,且在最不利的方向和相位情况下,测试仪表的误差,将其与无磁场时的误差比较,其误差改变量应符合规定限值.B)外部恒定磁感应影响试验恒定磁场可采用直流电磁铁获得,该磁场应作用于按正常使用时安装的仪表的所有可触及表面,其磁势值为1000 安匝.6.功能试验根据 DL/T614 DL/T645 GB/T15284 来测试备注:试验中的一些参数是不同的,我都加了”/”号以示区别,因为对不同等级的电能表都有不同的要求,各种误差限值都不同,所以在文中并没有列出,详见原标准.文档编码:C
43、G9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:
44、CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码
45、:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编
46、码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档
47、编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文
48、档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9文档编码:CG9G9P7M8C10 HV2W10C8T10Q5 ZZ4A1N2I5H9