HONEYWELL 51308307-175 CC-PCNTOX模块控制器
4.10 S9电压元件4 4.10.4频率路径：设定点×S9电压元素×频率一旦AN或AB相电压（取决于Y形或三角形连接）的频率超出过频和欠频设定点的范围，将发生跳闸或报警。该功能可能适用于大型电机的减载应用。如果跳闸分配给上游断路器，它也可用于卸载整个馈线。n频率n[输入]更多频率警报：关闭范围：关闭、锁定、未锁定分配警报继电器：警报范围：警报、警报和辅助2、警报和辅2和辅3，警报和辅助3、辅助2、辅助2和辅助3，辅助3超频率警报级别：60.50 Hz范围：25.01至70.00 Hz，步长为0.01超频率警报等级：59.50 Hz范围范围：20.00至60.00 Hz，步长0.01频率警报延迟：1.0 s范围：0.0至60.0 s，步长0.1频率警报事件：关闭范围：开、关和变量。这种情况在469上显示为+瓦和+瓦。同步电机可以消耗瓦特和无功功率，或者消耗瓦特和产生无功功率。这些条件在469上分别显示为+瓦、+瓦和+瓦、–瓦（见下图）。图4-15：功率测量惯例I1 I2 I3 I4 ^^^^^ GE Multilin 469电机管理继电器4-61 4设定值4.11 S10功率元件4 4.11.2功率因数路径：设定值×S10功率要素功率因数如果469应用于同步电机，则在应用磁场之前，最好不要跳闸或发出功率因数警报。因此，在电机达到速度并施加磁场之前，可以阻止此功能。从那时起，功率因数跳闸和报警元件将激活。一旦功率因数小于超前或滞后水平，对于指定的延迟，将发生跳闸或报警，指示超前或滞后条件。功率因数报警可用于检测失磁和失步。n功率因数n[ENTER]从启动到更多的模块PF元件：1 s范围：0到5000 s，步长为1功率因数警报：关闭范围：关闭、锁定、未锁定分配警报继电器：警报范围：警报、警报和辅助2、警报和辅助2、警报与辅助3、警报与辅助3、辅助2、辅助2和辅助3、辅助3功率因数超前警报级别：关闭范围，0.05至0.99，步长为0.01功率因数滞后报警级别：关闭范围：关闭，0.05至0.990，步长为0.01功率因数报警延迟：1.0 s范围：0.2至30.0 s，步长为0.1功率因数报警事件：关闭范围；打开，关闭功率因数跳闸：关断范围：关闭、锁定、未锁定分配跳闸继电器：跳闸范围：跳闸、跳闸和辅助2、跳闸和辅2和辅助3，跳闸和辅助3 469应用于同步电机，在施加磁场之前，最好不要在kvar上跳闸或报警。因此，在电机达到速度并施加磁场之前，可以阻止此功能。此后，kvar跳闸和报警元件将激活。一旦kvar水平超过正或负水平，对于指定的延迟，将发生跳闸或报警，指示正或负kvar条件。无功功率警报可用于检测失磁和失步。n无功功率n[ENTER]从启动到更多块kvar元件：1 s范围：0到5000 s，步长为1无功功率警报：关闭范围：关闭、锁定、未锁定分配警报继电器：警报范围：警报、警报和辅助2、警报和辅助2和辅助3、警报和附属3、辅助2、辅助2和辅助，辅助设备3正kvar警报级别：10 kvar范围：1至25000 kvar，步长为1负kvar警报等级：10 kvar范围：1到25000 kvar步长为1无功功率警报延迟：1.0 s范围：0.2至30.0 s，步长为0.1无功功率报警事件：关闭范围：打开，关闭无功功率跳闸：关闭范围，锁定，未锁定分配跳闸继电器：跳闸范围：跳闸，跳闸和辅助设备2，跳闸和辅助2和辅助3、跳闸和辅助3正kvar跳闸电平：25 kvar范围：1至25000 kvar，以1负kvar跳闸级别为步骤：25 kvar范围：1到25000 kvar启用，一旦3Φ总功率的幅度在延迟指定的时间段内低于拾取电平，将发生跳闸或报警。欠功率元件仅在电机运行时激活，并且在电机启动启动时将被阻止一段时间，该时间由BLOCK element FROM start设置点定义（例如，该块可用于允许泵在欠功率元件跳闸或报警之前建立扬程）。值为0表示该功能从一开始就未被阻止。
4.10 S9 VOLTAGE ELEMENTS 4 4.10.4 FREQUENCY PATH: SETPOINTS Õ× S9 VOLTAGE ELEMENTS Õ× FREQUENCY Once the frequency of the phase AN or AB voltage (depending on wye or delta connection) is out of range of the overfrequency and underfrequency setpoints, a trip or alarm will occur. This feature may be useful for load shedding applications on large motors. It could also be used to load shed an entire feeder if the trip was assigned to an upstream breaker. n FREQUENCY n [ENTER] for more FREQUENCY ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS: Alarm Range: Alarm, Alarm & Auxiliary2, Alarm & Aux2 & Aux3, Alarm & Auxiliary3, Auxiliary2, Aux2 & Aux3, Auxiliary3 OVER FREQUENCY ALARM LEVEL: 60.50 Hz Range: 25.01 to 70.00 Hz in steps of 0.01 UNDER FREQUENCY ALARM LEVEL: 59.50 Hz Range: 20.00 to 60.00 Hz in steps of 0.01 FREQUENCY ALARM DELAY: 1.0 s Range: 0.0 to 60.0 s in steps of 0.1 FREQUENCY ALARM EVENTS: Off Range: On, Off and vars. This condition is displayed on the 469 as +Watts and +vars. A synchronous motor can consume Watts and vars or consume Watts and generate vars. These conditions are displayed on the 469 as +Watts, +vars, and +Watts, –vars respectively (see the figure below). Figure 4–15: POWER MEASUREMENT CONVENTIONS I1 I2 I3 I4 ^ ^ ^ ^ GE Multilin 469 Motor Management Relay 4-61 4 SETPOINTS 4.11 S10 POWER ELEMENTS 4 4.11.2 POWER FACTOR PATH: SETPOINTS Õ× S10 POWER ELEMENTS Õ POWER FACTOR If the 469 is applied on a synchronous motor, it is desirable not to trip or alarm on power factor until the field has been applied. Therefore, this feature can be blocked until the motor comes up to speed and the field is applied. From that point forward, the power factor trip and alarm elements will be active. Once the power factor is less than either the Lead or Lag level, for the specified delay, a trip or alarm will occur indicating a Lead or Lag condition. The power factor alarm can be used to detect loss of excitation and out of step. n POWER FACTOR n [ENTER] for more BLOCK PF ELEMENT FROM START: 1 s Range: 0 to 5000 s in steps of 1 POWER FACTOR ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS: Alarm Range: Alarm, Alarm & Auxiliary2, Alarm & Aux2 & Aux3, Alarm & Auxiliary3, Auxiliary2, Aux2 & Aux3, Auxiliary3 POWER FACTOR LEAD ALARM LEVEL: Off Range: Off, 0.05 to 0.99 in steps of 0.01 POWER FACTOR LAG ALARM LEVEL: Off Range: Off, 0.05 to 0.99 in steps of 0.01 POWER FACTOR ALARM DELAY: 1.0 s Range: 0.2 to 30.0 s in steps of 0.1 POWER FACTOR ALARM EVENTS: Off Range: On, Off POWER FACTOR TRIP: Off Range: Off, Latched, Unlatched ASSIGN TRIP RELAYS: Trip Range: Trip, Trip & Auxiliary2, Trip & Aux2 & Aux3, Trip & Auxiliary3 469 is applied on a synchronous motor, it is desirable not to trip or alarm on kvar until the field has been applied. Therefore, this feature can be blocked until the motor comes up to speed and the field is applied. From that point forward, the kvar trip and alarm elements will be active. Once the kvar level exceeds either the positive or negative level, for the specified delay, a trip or alarm will occur indicating a positive or negative kvar condition. The reactive power alarm can be used to detect loss of excitation and out of step. n REACTIVE POWER n [ENTER] for more BLOCK kvar ELEMENT FROM START: 1 s Range: 0 to 5000 s in steps of 1 REACTIVE POWER ALARM: Off Range: Off, Latched, Unlatched ASSIGN ALARM RELAYS: Alarm Range: Alarm, Alarm & Auxiliary2, Alarm & Aux2 & Aux3, Alarm & Auxiliary3, Auxiliary2, Aux2 & Aux3, Auxiliary3 POSITIVE kvar ALARM LEVEL: 10 kvar Range: 1 to 25000 kvar in steps of 1 NEGATIVE kvar ALARM LEVEL: 10 kvar Range: 1 to 25000 kvar in steps of 1 REACTIVE POWER ALARM DELAY: 1.0 s Range: 0.2 to 30.0 s in steps of 0.1 REACTIVE POWER ALARM EVENTS: Off Range: On, Off REACTIVE POWER TRIP: Off Range: Off, Latched, Unlatched ASSIGN TRIP RELAYS: Trip Range: Trip, Trip & Auxiliary2, Trip & Aux2 & Aux3, Trip & Auxiliary3 POSITIVE kvar TRIP LEVEL: 25 kvar Range: 1 to 25000 kvar in steps of 1 NEGATIVE kvar TRIP LEVEL: 25 kvar Range: 1 to 25000 kvar in enabled, once the magnitude of 3Φ total power falls below the Pickup Level for a period of time specified by the Delay, a trip or alarm will occur. The Underpower element is active only when the motor is running and will be blocked upon the initiation of a motor start for a period of time defined by the BLOCK ELEMENT FROM START setpoint (e.g. this block may be used to allow pumps to build up head before the underpower element trips or alarms). A value of 0 means the feature is not blocked from start.
