GE Multilin UR9EV工控DCS系统
随着计算机、镇流器和变频驱动器等电子负载的日益使用，电力系统的质量变得重要。使用谐波分析选项，可以显示任何相电流或电压，并计算谐波含量。了解谐波分布，可采取措施防止变压器、电机、电容器、中性线过热和断路器跳闸。还可以确定系统负载的重新分布。PQM还可以提供波形和数据打印输出，以帮助问题诊断。通过选择非显示机箱型号作为系统组件并添加所需选项以获得所需级别的•监测器：A、V、VA、W、var、kWh、kvarh、kVAh、PF、Hz•按需计量：W、V、A、VA•大多数测量值的报警或控制设置点，包括：不平衡、频率、功率因数、电压和电流•4个输出继电器/4个开关输入，用于灵活控制配置•4个隔离模拟输出代替PLC接口的传感器 With increasing use of electronic loads such as computers, ballasts, and variable frequency drives, the quality of the power system is important. With the harmonic analysis option, any phase current or voltage can be displayed and the harmonic content calculated. Knowledge of the harmonic distribution allows action to be taken to prevent overheated transformers, motors, capacitors, neutral wires, and nuisance breaker trips. Redistribution of system loading can also be determined. The PQM can also provide waveform and data printouts to assist in problem diagnosis. Economical system monitoring or control is possible by selecting the non-display chassis model as a system component and adding required options to obtain the desired level of functionality • Monitor: A, V, VA, W, var, kWh, kvarh, kVAh, PF, Hz • Demand metering: W, var, A, VA • Setpoints for alarm or control from most measured values, including: unbalance, frequency, power factor, voltage, and current • 4 output relays / 4 switch inputs for flexible control configuration • 4 isolated analog outputs replace transducers for PLC interface
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