变电站直流系统安全稳定运行的探讨

摘要

There are many common problems in the operation of DC system of the transformer substation, such as the design specifications of batteries are not unified, the battery charger overheating and excessive loss of the operation, the insulation monitoring device can only warning but line selection and so on. Through strengthening the confirmation of parameters setting, adjusting the equipment distance, using shielding measures and other methods, this paper builds the quality responsibility system of DC system, does a good job with the checking of DC output voltage and AC input voltage to avoid these problems and based on the DC system function reform of the original transformer substation to reduce the system failure, reduce running cost and improve the economic benefit.%变电站直流系统在运行中普遍存在蓄电池设计规格不统一，充电机运行时过热、损耗过度，绝缘监察装置只能预警，不能选线等问题。本文提出通过加强参数设置确认、调整设备距离、使用屏蔽措施等方式，建立直流系统质量责任机制、做好直流输出电压以及交流输入电压的检查等措施来规避这些问题，在对原有变电站直流系统进行功能改造的基础上，减少系统故障，降低运行成本，提高经济效益。