SR489-P5-LO-A20-E 发电机管理继电器 GE 采用 40 个字符

SR489-P5-LO-A20-E 发电机管理继电器 GE 采用 40 个字符

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 发电机管理继电器 GE 采用 40 个字符

Product description

489-P5-LO-A20-E is an Agdo wire relay in the GE SR series of relays (in the same family as GE Multiwire 469 motor protection relays and GE Multiwire 735 feeder protection relays). The 489-P5-LO-A20-E is designed for generator protection and can be used in induction or synchronous generators. The device can operate at 25, 50 or 60 Hertz.

The 489-P5-LO-A20-E is designed with a 40-character display that allows users to view numerical information, diagnostics, and set values. The front panel includes a numeric keypad, status indicator, numerical up and down keys, RS232 port interfaces, and control and programming keys including reset, input, menu, menu Up, and menu Down keys. This allows control without being connected to an external computer.

The backplane includes 12 RTD inputs, 6 output relays, 2 RS485 communication ports, and 4 VT inputs. RTD is field programmable. Communication ports can use ModbusRTU or DNP 3.0 protocols up to 19200 bps (or both).

The 489-P5-LO-A20-E's backplane also includes four isolated 4-20 mA analog inputs and outputs and seven assignable digital inputs. There are seven CT inputs for three-phase output/three-phase neutral line and ground current detection, as well as a separate safety and filter ground. All inputs on 489-P5-LO-A20-E meet SWC, C37.990 EMI, RFI anti-interference.