高压变频器小室开挖深800mm，宽600mm的电缆沟将高压变频器柜和小室南墙处的电缆沟相连，电缆沟内水平每1500mm预制一副双层电缆支架，上层支架用于敷设动力电缆，下层支架用于敷设控制电缆，支架顶层距离地面不小于300mm，层间距不小于300mm，电缆沟支架导体部分需用40*5mm的扁钢连接，和我司主接地网相连，接地电阻小于4欧姆。
3.1.2.6电缆沟用于放置电缆沟盖板的折口需用角钢包边，电缆沟盖板的包边需用角钢包边，工艺美观。
3.1.2.7高压变频器小室原有的大窗户需拆除改造成进风滤网，将高压变频器小室和电机库相连的北门封堵，预留空间用于嵌入一台5P空调室内机。高压变频器小室西墙开孔，预留空间嵌入一台5P空调室内机。
3.1.2.8高压变频器小室墙面底部打3个孔，用于敷设空调室内机和室外机的连接部分。
3.1.2.9电缆沟需做好防雨水倒灌措施，高压变频器小室地面敷设整块高压绝缘垫，应有效防止高压变频器小室的负压将电缆沟内潮气吸入。
3.1.2.10引风机原使用的液力耦合器拆除，电机基础前移，使电机和引风机风叶连接，电机原用于穿设电缆的套管应同步前移。
3.1.2.11高压电缆交接和预防性试验合格。
3.1.2.12引风机高压电机全部改成高速接线方式。
3.1.2.13高压变频器调节与监控全部由DCS实现。
3.1.2.14高压变频器室需增加环境温度测量，采用PT100测量元件，装温湿度计。
3.1.2.15原有挡板及控制回路保留。
3.1.2.16送、引风机电机进行变频改造后，原先DCS系统对送、引风系统的控制方式发生了根本改变，对所有设计系统的顺控、自动逻辑和画面进行全面修改，增加变频模式下操作、顺控启停、事故联锁、协调控制等功能。如果没有及时更换单元，再次有其他单元故障，变频器还能旁路一组单元，同时发出“二级单元旁路”轻故障报警，此时，变频器虽已旁路两组单元（如图2b所示），但仍不影响变频器正常运行，只是变频器整体出力会下降15%左右。
3）变频器配置自动旁路柜——当变频器出现“二级单元旁路”故障后，没有及时更改单元，再出现其他单元故障时，变频器将报“重故障”，同时驱动整体旁路功能，将变频器完全旁路出来，使风机彻底脱离变频器控制——工频运行，如图3所示。of the pump station and unit, the operation scheduling and control of the control gate of the pump station, the drainage scheduling and control of the lower channel of the unit, the operation control of the dispatching gate and water supply gate, the operation control of the auxiliary equipment of the pump station, and browse and query the operation data and historical data of the pump station. Collect the data information in the field in real time and store it in the database. It has strong real-time performance and high processing efficiency, and the response time to access is short; The real-time performance of the acquisition interface is good. The alarm is carried out by means of audible and visual alarm, which greatly improves the safety index and meets the needs of its application.
4、 Features of configuration software:
Monitoring configuration software is a high-end product designed and developed according to the current development trend of automation technology, summarizing many
