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TR Monitoring
Product model: EC3000TR Transformer
Product Brief:EC3000TR used for continuous monitoring and analyzing partial discharge signals in the transformer system. The system comprises of PD sensor, data acquisition unit(DAU or LCU) and Main Cabinet(MCU)/PC server. Different PD sensors can be configured according to different voltage levels and structures. The sensors can use external sensors or built-in sensors. The multi-channel LCU collects the signals of the PD and noise sensors, and extracts the characteristic models of the PD and the external environment. It has the judgment of PD type, fault analysis function, real-time and historical data storage analysis, display function PRPS and PRPD simultaneous display. It can automatically perform partial discharge pattern recognition; display partial discharge spectrum map and on-site measured interference spectrum map, including discharge pattern recognition, analysis, and prediction of the severity of partial discharge defects, as well as storage, output, and printing functions.
  • EC3000TR变压器局放在线监测变压器局部放电监测采用内置或球阀安装外置式UHF传感方式,新设备建议采用内置传感方式,在设备制造前应与变压器进行一体化设计。对已运行设备则宜采用外置式取油传感方式,且尺寸大小与变压器相配套,不影响变压器的安全运行和外观美观。监测及诊断系统具有扩展能力,预留有足够的数据通道。只要增加现场数据处理单元和超高频传感器就可以了。系统抗干扰特性:系统有良好的电磁兼容性、绝缘性能、抗干扰性、抗腐蚀性。系统设计有屏蔽抗干扰措施,运行中能够区分局放信号与内、外界的干扰信号,如开合动作信号、自检信号、无线电、通讯信号等干扰信号。能够将高压开关设备操作所产生的暂态波、及其他外界干扰信号(移动电话信号、雷达信号、电动机干扰、荧光灯等干扰信号)的影响最小化。 系统的抗干扰措施保证100%区别真假局放,使用噪音传感器。 (1) 采用硬件噪音消除技术,直接从现场处理单元中识别局放和噪音信号。 (2) 采用软件分析,自动识别局放类型。系统设计有任一元件分合动作或内部闪络的VFTO瞬态过电压保护措施,现场数据处理单元具备过电压保护功能。可检测变压器中的局部放电,如固体绝缘中气隙放电、悬浮电位放电、内部电晕、油楔放电、沿面放电等典型缺陷产生的局部放电信号。
  • 电源工作电压    AC90~240V, 50~60HZ
    检测范围          200MHz~3000MHz, 1~100MHz, 300MHz ~3000MHz
    滤波                多种组合可调,服务器中选择
    最小监测          <-75dBm, -65dBm 和-60dBm可选(700、1000MHz)
    动态范围          -75dBm~0dBm
    通道数量          4,8,10通道
    通道一致性       <0.5dBm
    安装方式         壁挂式或机架式3U/19”
    过电压保护      内置Surge保护器
    自检功能         自行测试功能,Power 和Software Watch-Dogs
    EMC               IEC61000-4(GB/T17626-4)最高级别
    动态测试         IEC 68
    输入通道         同时检测
    同步信号         3通道(A,B,C相)可选择外部和内部同时
    同时测定         多通道同时测量
    通讯方式         网口和光口;使用光纤的Ridial和Cascad串联通讯方式
    输出结果         放电大小,放电相位,放电类型,放电次数等
    重     量          5Kg Rack Type, 8Kg LCU Type

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