摘要
针对某研究堆厂房配电变压器容量不足的情况,选择新增一台配电变压器与原变压器并列运行的方式对低压母线供电,指出变压器并列运行对低压母线动热稳定性、保护电器分断能力、动作灵敏性、保护选择性等方面的影响,并给出了具体的计算、校验、保护整定过程。
A new distribution transformer is selected to operate with the original transformer in parallel operation mode to supply power to the low-voltage bus,to solve the insufficiency of distribution transformer′s capacity in a research reactor plant.And then the influences of the parallel operation mode of transformers on the dynamic and thermal stability of lowvoltage bus,breaking capacity of protective device,motion sensitivity and protection selectivity are pointed out.At last,the concrete process of calculating,checking and protection setting is given.
作者
李昌顺
刘朝辉
覃甫军
徐川
金阳
LI Changshun;LIU Zhaohui;QIN Fujun;XU Chuan;JIN Yang(Nuclear Power Institute of China,Chengdu 610005,China)
出处
《电工技术》
2018年第11期64-67,共4页
Electric Engineering
关键词
变压器
并列运行
校验
保护整定
transformer
parallel operation
check
protection setting
