GE DS3800XTFP1E1C中央处理控制器
•相位欠电流延迟：如果平均相位电流降至或低于相位欠电流水平设定值，并且在该设定值中编程的时间延迟内保持该状态，则会出现相位欠电流情况。•0A时检测欠电流：如果将此设置点设置为“是”，则当平均相电流降至CT的5%以下时，将检测到欠电流。如果设置为“否”，则仅在平均相电流等于或高于CT的5%时才启用欠电流检测。•相过电流继电器：可禁用过电流，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。如果存在过电流情况，选择报警继电器将使报警继电器激活并显示报警信息。选择辅助继电器将导致辅助继电器在过电流条件下激活，但不会显示任何信息。这用于过程控制。
• PHASE UNDERCURRENT DELAY: If the average phase current drops to or below the PHASE UNDERCURRENT LEVEL setpoint value and remains this way for the time delay programmed in this setpoint, a phase undercurrent condition will occur. • DETECT UNDERCURRENT WHEN 0A: If this setpoint is set to YES, undercurrent will be detected if the average phase current drops below 5% of CT. If the setting is NO, the undercurrent detection is only enabled if the average phase current is equal to or above 5% of CT. • PHASE OVERCURRENT RELAY: Overcurrent 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 overcurrent condition exists. Selecting auxiliary relay will cause the auxiliary relay to activate for an overcurrent condition but no message will be displayed. This is intended for process control.
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