35 kV变电站系统的综合自动化改造

浙江善高化学有限公司为了提高35 kV变配电系统的运行可靠性,结合变电所的运行现状,对其进行了自动化改造,将原变电所各种分立元件组成的各类继电器保护装置改为微机保护装置。对改造的35 kV变配电系统的具体构成、系统的自动化改造、各种保护功能的调试以及后台监控系统的设计进行了介绍。系统运行结果表明:改造后的系统能提高各种保护的精确度和可靠性;系统改造不仅提高了系统供电的可靠性,而且节约了人力,节省了运营成本。

Synthesized Automation Reformation of 35 kV Transformer Substation System

In order to improve the operating reliability of the 35 kV electric transforming and distributing system, Zhejiang Gala Chemical Corp. combined the substation operation situation and carried on automation transformation. Various types of relay protection composed of separate components were transformed into the micro-computer protecting device. The improved 35 kV system architecture, system automatic transforming, the protecting functions adjusting and background monitoring system design were introduced. The operation indicated that the transformation enhanced the accuracy and reliability of the system protection, and not only improved power supply reliability but also saved manpower and reduced running cost.