基本信息：SR489-P5-LO-A20-E GE SR系列繼電器 用于感應或同步發電機
489-P5-LO-A20-E技術規格
| 通信端口奇偶校驗 | 無，奇數，偶數 |
| 惡劣環境涂層 | 此型號不提供 |
| 高位相過電流元件 | 旅行 |
| IRIG-B調幅 | 2.5至6.0 Vpk-pk，信號比為3:1 |
| 低正向功率時間延遲 | 0.2至120.0秒，步長為0.1 |
| 相位過電流電壓限制 | 可編程固定特性 |
| 污染程度 | 二 |
| 脈沖輸出脈沖寬度 | 200到1000毫秒，步長為1 |
| 轉速表可配置 | 可分配給數字輸入4至7 |
| 重量 | 大約10磅。 |
/u003Cp dir=/u0022ltr/u0022/u003E/u003Cstrong/u003EThe 489-P5-LO-A20-E is designed with a 40-character display that allows users to view value messages, diagnostics, and setpoints./u0026nbsp; The front panel includes a numeric keypad, status indicators, value up and down keys, an RS232 port interface, and control and programming keys including reset, enter, menu, menu up, and menu down keys. /u003C/strong/u003E/u0026nbsp; This allows control without connecting to an external computer./u0026nbsp;/u0026nbsp;/u003C/p/u003E
/u003Cp dir=/u0022ltr/u0022/u003EThe back panel includes twelve RTD inputs, six output relays, two RS485 communications ports, and four VT inputs./u0026nbsp; The RTDs are field programmable. Communication ports can use ModbusRTU or DNP 3.0 protocol (or both) up to 19200 bps./u0026nbsp;/u0026nbsp;/u003C/p/u003E
/u003Cp dir=/u0022ltr/u0022/u003EThe back panel of the 489-P5-LO-A20-E also includes four isolated 4-20 mA analog inputs and outputs along with seven assignable digital inputs./u0026nbsp; There are seven CT inputs for three-phase output/three-phase neutral and ground current sensing as well as a separate safety and filter ground. All inputs on the 489-P5-LO-A20-E meet SWC, C37.990 EMI, RFI interference immunity./u0026nbsp;/u0026nbsp;/u003C/p/u003E
/u003Cp dir=/u0022ltr/u0022/u003EFor additional information about the 489-P5-LO-A20-E, please contact our sales department via or phone./u0026nbsp; Orders of in-stock merchandise placed before 3 pm typically ship the same day. AX Control offers a variety of shipping options to meet your business needs./u0026nbsp;/u003C/p/u003E
/u003Cp/u003E/u0026nbsp;/u003C/p/u003E"}">
產品說明
489-P5-LO-A20-E是通用電氣SR系列繼電器中的阿格多線繼電器(與通用電氣多線469電機保護繼電器和通用電氣多線735饋線保護繼電器屬于同一系列)。)489-P5-LO-A20-E設計用于發電機保護，可用于感應或同步發電機。該裝置可在25、50或60赫茲下運行。
489-P5-LO-A20-E設計有40個字符的顯示屏，允許用戶查看數值信息、診斷和設定值。前面板包括數字鍵盤、狀態指示器、數值上下鍵、RS232端口接口以及控制和編程鍵，包括復位、輸入、菜單、菜單向上和菜單向下鍵。這允許在不連接外部計算機的情況下進行控制。
背板包括12個RTD輸入、6個輸出繼電器、2個RS485通信端口和4個VT輸入。RTD可現場編程。通信端口可以使用高達19200 bps的ModbusRTU或DNP 3.0協議(或兩者都使用)。
489-P5-LO-A20-E的背板還包括四個隔離的4-20 mA模擬輸入和輸出以及七個可分配的數字輸入。有七個CT輸入用于三相輸出/三相零線和接地電流檢測，以及一個獨立的安全和濾波器接地。489-P5-LO-A20-E上的所有輸入滿足SWC、C37.990 EMI、RFI抗干擾性。
SR489-P5-LO-A20-E
489-P5-LO-A20-E Technical Specifications
| Communication Ports Parity | None, Odd, Even |
| Harsh Environment Coating | Not Available on this Model |
| High-Set Phase Overcurrent Elements | Trip |
| IRIG-B Amplitude Modulated | 2.5 to 6.0 Vpk-pk at 3:1 signal ratio |
| Low Forward Power Time Delay | 0.2 to 120.0 s in steps of 0.1 |
| Phase Overcurrent Voltage Restraint | Programmable Fixed Characteristic |
| Pollution Degree | II |
| Pulse Output Pulse Width | 200 to 1000 ms in steps of 1 |
| Tachometer Configurable | assignable to Digital Inputs 4 to 7 |
| Weight | Approximately 10 lbs. |
/u003Cp dir=/u0022ltr/u0022/u003E/u003Cstrong/u003EThe 489-P5-LO-A20-E is designed with a 40-character display that allows users to view value messages, diagnostics, and setpoints./u0026nbsp; The front panel includes a numeric keypad, status indicators, value up and down keys, an RS232 port interface, and control and programming keys including reset, enter, menu, menu up, and menu down keys. /u003C/strong/u003E/u0026nbsp; This allows control without connecting to an external computer./u0026nbsp;/u0026nbsp;/u003C/p/u003E
/u003Cp dir=/u0022ltr/u0022/u003EThe back panel includes twelve RTD inputs, six output relays, two RS485 communications ports, and four VT inputs./u0026nbsp; The RTDs are field programmable. Communication ports can use ModbusRTU or DNP 3.0 protocol (or both) up to 19200 bps./u0026nbsp;/u0026nbsp;/u003C/p/u003E
/u003Cp dir=/u0022ltr/u0022/u003EThe back panel of the 489-P5-LO-A20-E also includes four isolated 4-20 mA analog inputs and outputs along with seven assignable digital inputs./u0026nbsp; There are seven CT inputs for three-phase output/three-phase neutral and ground current sensing as well as a separate safety and filter ground. All inputs on the 489-P5-LO-A20-E meet SWC, C37.990 EMI, RFI interference immunity./u0026nbsp;/u0026nbsp;/u003C/p/u003E
/u003Cp dir=/u0022ltr/u0022/u003EFor additional information about the 489-P5-LO-A20-E, please contact our sales department via or phone./u0026nbsp; Orders of in-stock merchandise placed before 3 pm typically ship the same day. AX Control offers a variety of shipping options to meet your business needs./u0026nbsp;/u003C/p/u003E
/u003Cp/u003E/u0026nbsp;/u003C/p/u003E"}">
Product Description
The 489-P5-LO-A20-E is a GE Multilin Relay from GE’s SR family of relays (in the same family as the GE Multilin 469 Motor Protection Relay and the GE Multilin 735 Feeder Protection Relay.) The 489-P5-LO-A20-E is designed for Generator Protection and can be used for induction or synchronous generators. The unit can be operated at 25, 50 or 60 Hz.
The 489-P5-LO-A20-E is designed with a 40-character display that allows users to view value messages, diagnostics, and setpoints. The front panel includes a numeric keypad, status indicators, value up and down keys, an RS232 port interface, and control and programming keys including reset, enter, menu, menu up, and menu down keys. This allows control without connecting to an external computer.
The back panel includes twelve RTD inputs, six output relays, two RS485 communications ports, and four VT inputs. The RTDs are field programmable. Communication ports can use ModbusRTU or DNP 3.0 protocol (or both) up to 19200 bps.
The back panel of the 489-P5-LO-A20-E also includes four isolated 4-20 mA analog inputs and outputs along with seven assignable digital inputs. There are seven CT inputs for three-phase output/three-phase neutral and ground current sensing as well as a separate safety and filter ground. All inputs on the 489-P5-LO-A20-E meet SWC, C37.990 EMI, RFI interference immunity.
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