GE DS3800HVDB1K1G数字量控制板卡
当功率因数条件启动功率因数1或2延迟定时器时，如果在定时器超时之前所有三相电压都低于20%阈值，则元件将在不工作的情况下复位。任何状态下的电压损失都会使功率因数1和2返回到重置状态。•功率因数引线1/2继电器：功率因数检测可以禁用，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。当功率因数高于设定的水平时，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AUX1、AUX2或AUX3继电器将使相应的辅助继电器在功率因数等于或大于设置的电平时启动，但不会显示任何信息。这用于过程控制。在该功能运行之前，所有电压输入上必须至少施加20V电压。
when a power factor condition starts the power factor 1 or 2 delay timer, if all three phase voltages fall below the 20% threshold before the timer has timed-out, the element will reset without operating. A loss of voltage during any state will return both power factor 1 and 2 to the reset state.• POWER FACTOR LEAD 1 / 2 RELAY: Power factor 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 when the power factor is more leading than the level set. Selecting AUX1, AUX2 or AUX3 relay will cause the respective auxiliary relay to activate when the power factor is equal to or more leading than the level set, but no message will be displayed. This is intended for process control. A minimum of 20V applied must exist on all voltage inputs before this feature will operate.
