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(shè)定點(diǎn)×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(guò)頻和欠頻設(shè)定點(diǎn)的范圍，將發(fā)生跳閘或報(bào)警。該功能可能適用于大型電機(jī)的減載應(yīng)用。如果跳閘分配給上游斷路器，它也可用于卸載整個(gè)饋線。n頻率n[輸入]更多頻率警報(bào)：關(guān)閉范圍：關(guān)閉、鎖定、未鎖定分配警報(bào)繼電器：警報(bào)范圍：警報(bào)、警報(bào)和輔助2、警報(bào)和輔2和輔3，警報(bào)和輔助3、輔助2、輔助2和輔助3，輔助3超頻率警報(bào)級(jí)別：60.50 Hz范圍：25.01至70.00 Hz，步長(zhǎng)為0.01超頻率警報(bào)等級(jí)：59.50 Hz范圍范圍：20.00至60.00 Hz，步長(zhǎng)0.01頻率警報(bào)延遲：1.0 s范圍：0.0至60.0 s，步長(zhǎng)0.1頻率警報(bào)事件：關(guān)閉范圍：開(kāi)、關(guān)和變量。這種情況在469上顯示為+瓦和+瓦。同步電機(jī)可以消耗瓦特和無(wú)功功率，或者消耗瓦特和產(chǎn)生無(wú)功功率。這些條件在469上分別顯示為+瓦、+瓦和+瓦、–瓦（見(jiàn)下圖）。圖4-15：功率測(cè)量慣例I1 I2 I3 I4 ^^^^^ GE Multilin 469電機(jī)管理繼電器4-61 4設(shè)定值4.11 S10功率元件4 4.11.2功率因數(shù)路徑：設(shè)定值×S10功率要素功率因數(shù)如果469應(yīng)用于同步電機(jī)，則在應(yīng)用磁場(chǎng)之前，最好不要跳閘或發(fā)出功率因數(shù)警報(bào)。因此，在電機(jī)達(dá)到速度并施加磁場(chǎng)之前，可以阻止此功能。從那時(shí)起，功率因數(shù)跳閘和報(bào)警元件將激活。一旦功率因數(shù)小于超前或滯后水平，對(duì)于指定的延遲，將發(fā)生跳閘或報(bào)警，指示超前或滯后條件。功率因數(shù)報(bào)警可用于檢測(cè)失磁和失步。n功率因數(shù)n[ENTER]從啟動(dòng)到更多的模塊PF元件：1 s范圍：0到5000 s，步長(zhǎng)為1功率因數(shù)警報(bào)：關(guān)閉范圍：關(guān)閉、鎖定、未鎖定分配警報(bào)繼電器：警報(bào)范圍：警報(bào)、警報(bào)和輔助2、警報(bào)和輔助2、警報(bào)與輔助3、警報(bào)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(bào)級(jí)別：關(guān)閉范圍，0.05至0.99，步長(zhǎng)為0.01功率因數(shù)滯后報(bào)警級(jí)別：關(guān)閉范圍：關(guān)閉，0.05至0.990，步長(zhǎng)為0.01功率因數(shù)報(bào)警延遲：1.0 s范圍：0.2至30.0 s，步長(zhǎng)為0.1功率因數(shù)報(bào)警事件：關(guān)閉范圍；打開(kāi)，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(yīng)用于同步電機(jī)，在施加磁場(chǎng)之前，最好不要在kvar上跳閘或報(bào)警。因此，在電機(jī)達(dá)到速度并施加磁場(chǎng)之前，可以阻止此功能。此后，kvar跳閘和報(bào)警元件將激活。一旦kvar水平超過(guò)正或負(fù)水平，對(duì)于指定的延遲，將發(fā)生跳閘或報(bào)警，指示正或負(fù)kvar條件。無(wú)功功率警報(bào)可用于檢測(cè)失磁和失步。n無(wú)功功率n[ENTER]從啟動(dòng)到更多塊kvar元件：1 s范圍：0到5000 s，步長(zhǎng)為1無(wú)功功率警報(bào)：關(guān)閉范圍：關(guān)閉、鎖定、未鎖定分配警報(bào)繼電器：警報(bào)范圍：警報(bào)、警報(bào)和輔助2、警報(bào)和輔助2和輔助3、警報(bào)和附屬3、輔助2、輔助2和輔助，輔助設(shè)備3正kvar警報(bào)級(jí)別：10 kvar范圍：1至25000 kvar，步長(zhǎng)為1負(fù)kvar警報(bào)等級(jí)：10 kvar范圍：1到25000 kvar步長(zhǎng)為1無(wú)功功率警報(bào)延遲：1.0 s范圍：0.2至30.0 s，步長(zhǎng)為0.1無(wú)功功率報(bào)警事件：關(guān)閉范圍：打開(kāi)，關(guān)閉無(wú)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(shè)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(fù)kvar跳閘級(jí)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(shí)間段內(nèi)低于拾取電平，將發(fā)生跳閘或報(bào)警。欠功率元件僅在電機(jī)運(yùn)行時(shí)激活，并且在電機(jī)啟動(dòng)啟動(dòng)時(shí)將被阻止一段時(shí)間，該時(shí)間由BLOCK element FROM start設(shè)置點(diǎn)定義（例如，該塊可用于允許泵在欠功率元件跳閘或報(bào)警之前建立揚(yáng)程）。值為0表示該功能從一開(kāi)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.
