GE DS3800NTDA1A1D涡轮机控制显示门板
选择辅助继电器将导致辅助继电器在电压不平衡条件下激活，但不会显示任何信息。这用于过程控制。•电压不平衡水平：当电压不平衡等于或超过该水平时，出现电压不平衡情况。有关计算方法的详细信息，请参见第5章电压不平衡延迟：如果电压不平衡等于或超过电压不平衡水平设定值，并且在该设定值中编程的时间延迟内保持这种状态，则会出现电压不平衡状况。•电压相位反转：在正常操作条件下，PQM预计会看到以1-2-3或a-B-C顺序连接的电压。如果电压以错误的顺序连接，2-1-3或B-A-C，将出现电压相位反转情况。在相位反转功能运行之前，必须在所有电压输入上向PQM施加至少20 V的电压。
Selecting auxiliary relay will cause the auxiliary relay to activate for a voltage unbalance condition but no message will be displayed. This is intended for process control. • VOLTAGE UNBALANCE LEVEL: When the voltage unbalance equals or exceeds this level, a voltage unbalance condition occurs. See chapter 5 for details on the method of calculation. • VOLTAGE UNBALANCE DELAY: If the voltage unbalance equals or exceeds the VOLTAGE UNBALANCE LEVEL setpoint value and remains this way for the time delay programmed in this setpoint, a voltage unbalance condition will occur. • VOLTAGE PHASE REVERSAL: Under normal operating conditions, the PQM expects to see the voltages connected with a 1-2-3 or A-B-C sequence. If the voltages are connected with the wrong sequence, 2-1-3 or B-A-C, a voltage phase reversal condition will occur. A minimum of 20 V must be applied to the PQM on all voltage inputs before the phase reversal feature will operate.
