269PLUS-120N-125VDC GE馈电保护 电机管理

269PLUS-120N-125VDC GE馈电保护 电机管理

269PLUS-120N-125VDC GE馈电保护 电机管理

产品描述

通用电气Multilin的269PLUS-DO-120N-120是基于微处理器的继电器，旨在保护和控制中型交流电机。作为 269 PLUS 系列的一部分，该特定型号采用抽出结构，允许将继电器从其底盘上拆下，而不会触发电机关闭。此功能使设备能够以最短的系统停机时间进行更换、校准或测试。型号中的“120N”名称是指该装置的 120 欧姆镍 RTD，用于监控电机系统内的温度，包括最热点和环境空气温度。

继电器包含许多保护功能，可延长系统寿命并减少系统停机时间。该装置的接地故障保护功能可以检测高阻抗零序接地故障或残余接地故障，然后通过触发跳闸来响应事件。用户可将继电器跳闸配置为瞬间发生或在延迟一段时间后（最多 20 秒）发生。其他保护功能包括定子过热保护、RTD 热电机补偿、指数冷却、不平衡保护、快速跳闸/机械堵塞保护和欠流保护。

继电器与 EnerVista 269 软件程序高效配合使用，该程序提供了一系列工具，有助于最大限度地提高继电器的效率。例如，EnerVista 集成器允许继电器顺利集成到新的或现有的工业系统中。该集成器包括自动事件检索、自动波形检索、GE 驱动程序安装和 OPC/DDE 服务器。更一般地说，EnerVista 软件还支持数据的趋势分析和导出、系统设置的编辑以及相关系统文档的自动更新。

269PLUS-120N-125VDC GE馈电保护 电机管理

Product description

General Electric Multilin's 269PLUS-DO-120N-120 is a microprocessor-based relay designed to protect and control medium-sized AC motors. Part of the 269 PLUS series, this particular model features a drawout structure that allows the relay to be removed from its chassis without triggering the motor to shut off. This feature enables equipment to be replaced, calibrated, or tested with minimal system downtime. The "120N" designation in the model number refers to the unit's 120 ohm nickel RTD for monitoring the temperature within the motor system, including the most hot spots and ambient air temperatures.

Relays contain a number of protective features that extend system life and reduce system downtime. The device's ground fault protection function detects high impedance zero sequence ground faults or residual ground faults and then responds to the event by triggering a trip. The user can configure the relay trip to occur instantaneously or after a delay of up to 20 seconds. Additional protection features include stator overheat protection, RTD thermal motor compensation, exponential cooling, unbalance protection, rapid trip/mechanical clogging protection, and undercurrent protection.

The relay works efficiently with the EnerVista 269 software program, which provides a range of tools to help maximize the efficiency of the relay. For example, the EnerVista integrator allows for smooth integration of relays into new or existing industrial systems. The integrator includes automatic event retrieval, automatic waveform retrieval, GE driver installation, and OPC/DDE server. More generally, EnerVista software also supports trend analysis and export of data, editing of system Settings, and automatic updating of related system documents.