液阻启动柜说明书.doc

液阻启动柜说明书LXMGD系列高压鼠笼式电机液阻软起动柜使用手册上海一开电气集团林信电器有限公司目录一概述····························································2二工作原理··························································2三型号说明··························································3四主要技术参数及使用环境条件········································3五典型一次方案······················································4六符合标准··························································4七产品规格及安装基础图··············································4八功能说明··························································6九装置的安装、调试···················································7十使用与维护························································9十一运输与储存····················································11十二开箱须知······················································11十三订货须知······················································11一、概述LXMGD系列高压鼠笼式电机液阻软起动柜(“简称高压液阻柜”)适用于额定电压为3~10KV大、中型同步或异步鼠笼式电机的软起动。在静态工作条件下,与电抗器性能相同;在动态工作条件下,可实现无级的连续起动。由于其利用液体电阻的负温度特性,使电机的端电压逐步上升,起动转矩也逐步增加,因而电机起动比较平稳。特别是该系统结构简单、可靠性强,不仅经济实用,而且安装和操作简单、维护方便。它广泛应用于冶金、建材、矿山、石化、供水、电力行业等的泵类、风机、压缩机、破碎机、皮带传输机等各大、中容量高压电机的重载起动,是传统的电抗器降压起动、直接起动的理想的替代产品。LXMGD系列高压交流电动机液态软起动柜主要性能特点如下:1标准型采用具有的计算机仿真软件对电动机的起动全过程进行模拟仿真,使电动机起动的全过程可预测、可调整、可控制。起动电流小而平滑、无冲击,显著降低电网压降,保证电网的可靠运行,有效保护电动机及传动机械。具备完善的报警提示功能和电动机保护功能。采用PIC控制,可靠性高。2增强型在标准型的基础上,增加电流闭环自动控制功能。即在电动机起动过程中自动检测电动机电流,同时根据电流大小自动调节控制装置,使电动机起动最佳化。采用先进的控制技术,使电动机起动过程的控制响应更快,精度更高。电动机起动电流可预置,满足不同工况、负载的起动要求。3智能型采用计算机控制系统、动态软件,对软起动装置进行智能化监控。友好的人机界面,观察、操作、记录非常方便。可输出实时电流曲线、实时电压曲线(显示、打印)。数据库全面,可随时调用各类数据以便系统分析。电动机起动完成后,实施有效动态监控。电动机运行的历史曲线使电动机运行过程一目了然。完善的报警提示功能。通信功能、网络功能。二工作原理该装置是在电机定子回路中串可变液体电阻的一种降压起动方式,即随着主电动机的起动,装置自动改变液体电阻动、定极板之间的间距,使电阻线性均匀减小,电机端电压均匀提高的一种起动方式。主机起动结束后,软起动装置从主回路中完全脱离或处于零电位,活动极板自动复位,为下次起动作好准备。三型号说明四主要技术参数额定电压(KV有效值)3610最高电压(KV有效值)(KV)(有效值)相对地182330相同间121518最小电气间隙(mm)75100125起动电流/额定电流(Iq/Ie)~(现场可调)液阻正常工作温度(℃)0~70起动时间(S)10~60~120(现场可调)防护等级IP20,IP30连续起动次数(次)﹤1250KW3~4≥1250KW2~3注:起动电流在负载系统阻力矩允许的情况下可控制到最小。使用环境条件:1)环境温度:最高气温﹢40℃,最低气温0℃;