基本信息：SR489-P5-LO-A20-E GE SR系列继电器 用于感应或同步发电机
489-P5-LO-A20-E技术规格
| 通信端口奇偶校验 | 无，奇数，偶数 |
| 恶劣环境涂层 | 此型号不提供 |
| 高位相过电流元件 | 旅行 |
| IRIG-B调幅 | 2.5至6.0 Vpk-pk，信号比为3:1 |
| 低正向功率时间延迟 | 0.2至120.0秒，步长为0.1 |
| 相位过电流电压限制 | 可编程固定特性 |
| 污染程度 | 二 |
| 脉冲输出脉冲宽度 | 200到1000毫秒，步长为1 |
| 转速表可配置 | 可分配给数字输入4至7 |
| 重量 | 大约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"}">
产品说明
489-P5-LO-A20-E是通用电气SR系列继电器中的阿格多线继电器(与通用电气多线469电机保护继电器和通用电气多线735馈线保护继电器属于同一系列)。)489-P5-LO-A20-E设计用于发电机保护，可用于感应或同步发电机。该装置可在25、50或60赫兹下运行。
489-P5-LO-A20-E设计有40个字符的显示屏，允许用户查看数值信息、诊断和设定值。前面板包括数字键盘、状态指示器、数值上下键、RS232端口接口以及控制和编程键，包括复位、输入、菜单、菜单向上和菜单向下键。这允许在不连接外部计算机的情况下进行控制。
背板包括12个RTD输入、6个输出继电器、2个RS485通信端口和4个VT输入。RTD可现场编程。通信端口可以使用高达19200 bps的ModbusRTU或DNP 3.0协议(或两者都使用)。
489-P5-LO-A20-E的背板还包括四个隔离的4-20 mA模拟输入和输出以及七个可分配的数字输入。有七个CT输入用于三相输出/三相零线和接地电流检测，以及一个独立的安全和滤波器接地。489-P5-LO-A20-E上的所有输入满足SWC、C37.990 EMI、RFI抗干扰性。
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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