HONEYWELL 51308307-175 CC-PCNTOX模塊控制器
4.10 S9電壓元件4 4.10.4頻率路徑：設定點×S9電壓元素×頻率一旦AN或AB相電壓（取決于Y形或三角形連接）的頻率超出過頻和欠頻設定點的范圍，將發(fā)生跳閘或報警。該功能可能適用于大型電機的減載應用。如果跳閘分配給上游斷路器，它也可用于卸載整個饋線。n頻率n[輸入]更多頻率警報：關(guān)閉范圍：關(guān)閉、鎖定、未鎖定分配警報繼電器：警報范圍：警報、警報和輔助2、警報和輔2和輔3，警報和輔助3、輔助2、輔助2和輔助3，輔助3超頻率警報級別：60.50 Hz范圍：25.01至70.00 Hz，步長為0.01超頻率警報等級：59.50 Hz范圍范圍：20.00至60.00 Hz，步長0.01頻率警報延遲：1.0 s范圍：0.0至60.0 s，步長0.1頻率警報事件：關(guān)閉范圍：開、關(guān)和變量。這種情況在469上顯示為+瓦和+瓦。同步電機可以消耗瓦特和無功功率，或者消耗瓦特和產(chǎn)生無功功率。這些條件在469上分別顯示為+瓦、+瓦和+瓦、–瓦（見下圖）。圖4-15：功率測量慣例I1 I2 I3 I4 ^^^^^ GE Multilin 469電機管理繼電器4-61 4設定值4.11 S10功率元件4 4.11.2功率因數(shù)路徑：設定值×S10功率要素功率因數(shù)如果469應用于同步電機，則在應用磁場之前，最好不要跳閘或發(fā)出功率因數(shù)警報。因此，在電機達到速度并施加磁場之前，可以阻止此功能。從那時起，功率因數(shù)跳閘和報警元件將激活。一旦功率因數(shù)小于超前或滯后水平，對于指定的延遲，將發(fā)生跳閘或報警，指示超前或滯后條件。功率因數(shù)報警可用于檢測失磁和失步。n功率因數(shù)n[ENTER]從啟動到更多的模塊PF元件：1 s范圍：0到5000 s，步長為1功率因數(shù)警報：關(guān)閉范圍：關(guān)閉、鎖定、未鎖定分配警報繼電器：警報范圍：警報、警報和輔助2、警報和輔助2、警報與輔助3、警報與輔助3、輔助2、輔助2和輔助3、輔助3功率因數(shù)超前警報級別：關(guān)閉范圍，0.05至0.99，步長為0.01功率因數(shù)滯后報警級別：關(guān)閉范圍：關(guān)閉，0.05至0.990，步長為0.01功率因數(shù)報警延遲：1.0 s范圍：0.2至30.0 s，步長為0.1功率因數(shù)報警事件：關(guān)閉范圍；打開，關(guān)閉功率因數(shù)跳閘：關(guān)斷范圍：關(guān)閉、鎖定、未鎖定分配跳閘繼電器：跳閘范圍：跳閘、跳閘和輔助2、跳閘和輔2和輔助3，跳閘和輔助3 469應用于同步電機，在施加磁場之前，最好不要在kvar上跳閘或報警。因此，在電機達到速度并施加磁場之前，可以阻止此功能。此后，kvar跳閘和報警元件將激活。一旦kvar水平超過正或負水平，對于指定的延遲，將發(fā)生跳閘或報警，指示正或負kvar條件。無功功率警報可用于檢測失磁和失步。n無功功率n[ENTER]從啟動到更多塊kvar元件：1 s范圍：0到5000 s，步長為1無功功率警報：關(guān)閉范圍：關(guān)閉、鎖定、未鎖定分配警報繼電器：警報范圍：警報、警報和輔助2、警報和輔助2和輔助3、警報和附屬3、輔助2、輔助2和輔助，輔助設備3正kvar警報級別：10 kvar范圍：1至25000 kvar，步長為1負kvar警報等級：10 kvar范圍：1到25000 kvar步長為1無功功率警報延遲：1.0 s范圍：0.2至30.0 s，步長為0.1無功功率報警事件：關(guān)閉范圍：打開，關(guān)閉無功功率跳閘：關(guān)閉范圍，鎖定，未鎖定分配跳閘繼電器：跳閘范圍：跳閘，跳閘和輔助設備2，跳閘和輔助2和輔助3、跳閘和輔助3正kvar跳閘電平：25 kvar范圍：1至25000 kvar，以1負kvar跳閘級別為步驟：25 kvar范圍：1到25000 kvar啟用，一旦3Φ總功率的幅度在延遲指定的時間段內(nèi)低于拾取電平，將發(fā)生跳閘或報警。欠功率元件僅在電機運行時激活，并且在電機啟動啟動時將被阻止一段時間，該時間由BLOCK element FROM start設置點定義（例如，該塊可用于允許泵在欠功率元件跳閘或報警之前建立揚程）。值為0表示該功能從一開始就未被阻止。
4.10 S9 VOLTAGE ELEMENTS 4 4.10.4 FREQUENCY PATH: SETPOINTS ?× S9 VOLTAGE ELEMENTS ?× 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 ?× S10 POWER ELEMENTS ? 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.
