GE DS3800NISB1F1F信号隔离卡
•平均电流THD延迟：如果在该设定点中编程的时间延迟内，平均电流THD超过平均电流THD/LEVEL，则会出现平均电流THL情况。•平均电压THD继电器：可以禁用平均电压THD检测，用作报警或过程控制。如果不需要此功能，则将此设置点设置为关闭。当平均电压THD条件存在时，选择报警继电器将使报警继电器激活并显示报警信息。选择辅助继电器将激活辅助继电器，但不会显示任何信息。这用于过程控制。•平均电压THD水平：当测得的平均电压THD等于或超过该设定值时，出现平均电压THT条件。
• AVERAGE CURRENT THD DELAY: If the average current THD exceeds the AVERAGE CURRENT THD LEVEL for the time delay programmed in this setpoint, an average current THD condition occurs. • AVERAGE VOLTAGE THD RELAY: Average voltage THD detection can either be disabled, used as an alarm or as a process control. Set this setpoint to off if the feature is not required. Selecting alarm relay will cause the alarm relay to activate and display an alarm message whenever an average voltage THD condition exists. Selecting auxiliary relay will cause the auxiliary relay to activate, but no message will be displayed. This is intended for process control. • AVERAGE VOLTAGE THD LEVEL: When the measured average voltage THD equals or exceeds this setpoint value, an AVERAGE VOLTAGE THD condition occurs.
