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GDDN-500C电能质量在线监测装置[产品]
发布时间2008-03-25     浏览次数:3086 次
信 誉 度:  普通企业会员 普通企业会员 进入这个会员的店铺
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GDDN-500C电能质量测试仪是GDDN-500B的升级产品,配置3×4路电压、3×4路电流,最高可支持3×6路电压、3×6路电流(即六个通道)。</P><P> 
                                                                                                                                           可测试参数
                                                                                                                                           电流真有效值、基波有效值、2~50次谐波有效值; 
                                                                                                                                           电压真有效值、基波有效值、2~50次谐波电压畸变率、总畸变率; 
                                                                                                                                           真功率因数、基波功率因数; 
                                                                                                                                           基波视在功率、基波有功功率、基波无功功率; 
                                                                                                                                           电压偏差; 
                                                                                                                                           三相电压不平衡度; 
                                                                                                                                           基波电压(电流)相角; 
                                                                                                                                           电网频率; 
                                                                                                                                           电压波动与闪变值(长期闪变值(Plt)、短期闪变值(Pst)); 
                                                                                                                                           主要功能
                                                                                                                                           收/发控制功能,通讯方式选择功能; 
                                                                                                                                           向各监测点发送指令,提取数据或设置参数; 
                                                                                                                                           可设置的参数包括:监测网点、监测指标、系统参数、定时通讯的时间间隔等; 
                                                                                                                                           接收各监测点上传的电能质量数据、波形等; 
                                                                                                                                           可切换至被监测的任一变电站的任一条线路,显示并统计现场数据; 
                                                                                                                                           数据处理功能; 
                                                                                                                                           图形输出功能; 
                                                                                                                                           报表输出功能。 
                                                                                                                                           灵活而可靠的硬件配置
                                                                                                                                           为保证系统和仪器的安全可靠运行,所有电压、电流输入通道均采取隔离措施,电流采用电流钳或内置式传感器,电压采用光电隔离模块。每通道的绝缘电阻≥20MΩ,耐电压≥1.5KV。仪器采用免维护设计,采用标准工业控制计算机,性能可靠,自带看门狗(反应时间小于1.6S)。平均无故障时间(MTBF)大于105小时。
                                                                                                                                           3.1网络化方式
                                                                                                                                           单机配置三路电压、三路电流。仪器支持RS232、Modem、TCP/IP等多种通讯方式,仪器配备工控级10/100M自适应网卡或符合V90协议的56K调制解调器,连接可靠,长期运行稳定性好。多台GDDN-500C和上位机联网可以组成电能质量监测与管理系统(POWERQUALITYSUPERVISORY&MANAGEMENT SYSTEM,简称PQSMS)。
                                                                                                                                           3.2测量精度
                                                                                                                                           ·系统频率测量误差<=0.01Hz
                                                                                                                                           ·基波电压测量误差<=0.5%F.S.
                                                                                                                                           ·基波电流测量误差<=0.2%F.S.
                                                                                                                                           ·谐波测量精度符合GB/T14543-93规定测量精度
                                                                                                                                           3.3数据通讯
                                                                                                                                           ·通讯接口:RJ45,MODEM,RS232
                                                                                                                                           ·双向传输
                                                                                                                                           安装开孔
                                                                                                                                           安装开孔尺寸为标准4U机箱
                                                                                                                                            
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