489-P5-LO-A20-E-H  |  489-P5-HI-A20  | SR489-P5-HI-A20  继电器  | 

型号：489-P5-LO-A20-E-H

类别:  继电器

成色：全新/非全新

货期：现货

质保：一年

快递：顺丰/德邦

IRIG-B 调幅 ：2.5 至 6.0 Vpk-pk，信号比为 3：1

低正向功率延时： 0.2 至 120.0 秒，步长为 0.1

相位过流电压抑制： 可编程固定特性

脉冲输出脉冲宽度： 200 至 1000 ms，步长为 1

转速表可配置： 可分配给数字输入 4 至 7

重量 ：约10磅

产品描述

489-P5-LO-A20-E 是 GE SR 继电器系列中的 GE Multilin 继电器（与 GE Multilin 469 电机保护继电器和 GE Multilin 735 馈线保护继电器属于同一系列）。 489-P5-LO-A20-E 专为发电机保护而设计，可用于感应或同步发电机。该装置可在 25、50 或 60 Hz 下运行。

489-P5-LO-A20-E 设计有 40 个字符的显示屏，允许用户查看值消息、诊断和设定值。前面板包括数字键盘、状态指示灯、值向上和向下键、RS232 端口接口以及控制和编程键，包括复位键、回车键、菜单键、菜单向上键和菜单向下键。这允许在不连接到外部计算机的情况下进行控制。

后面板包括 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（或两者兼而有之）。

489-P5-LO-A20-E 的后面板还包括 4 个隔离的 4-20 mA 模拟输入和输出以及 7 个可分配的数字输入。有七个 CT 输入，用于三相输出/三相中性线和接地电流检测，以及一个单独的安全和滤波器接地。489-P5-LO-A20-E 上的所有输入均符合 SWC、C37.990 EMI、RFI 抗干扰性。

Model: 489-P5-LO-A20-E-H

Category: Relay

Finish: New/not new

Delivery time: from stock

Warranty: One year

Express: SF Express/Debon

IRIG-B AM: 2.5 to 6.0 Vpk-pk, signal ratio 3:1

Low forward power delay: 0.2 to 120.0 seconds, step size 0.1

Phase overcurrent voltage suppression: programmable fixed feature

Pulse output Pulse width: 200 to 1000 ms, step size is 1

Tachometer configurable: can be assigned to digital inputs 4 to 7

Weight: About 10 pounds

Product description

489-P5-LO-A20-E is a GE Multilin relay in the GE SR relay family (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 in induction or synchronous generators. The unit can operate 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 set values. The front panel includes a numeric keypad, status indicators, value up and down keys, RS232 port interfaces, and control and programming keys, including reset, Enter, menu, menu Up, and menu Down keys. This allows control without being connected to an external computer.

The rear panel 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 rear panel of the 489-P5-LO-A20-E 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 comply with SWC, C37.990 EMI, RFI anti-interference.