一種主變保護(hù)出口檢測裝置的研發(fā)
蘇杰鋒,譚子毅,雷宇,梁志豪,常建軍
(廣東電網(wǎng)有限責(zé)任公司肇慶供電局,廣東 肇慶 526060)
摘 要:提出一種主變保護(hù)出口裝置的設(shè)計(jì)思路及軟硬件實(shí)現(xiàn)方法,通過分析主變保護(hù)動(dòng)作時(shí)在不同時(shí)限出口壓板的電位變化情況,確定檢測的方法及結(jié)果顯示時(shí)機(jī)。該裝置能在直流系統(tǒng)為DC 110 V 或220 V 的變電站通用且具有較高輸入阻抗,使用時(shí)不影響變電站的直流絕緣水平,且在一次保護(hù)試驗(yàn)完成后自動(dòng)顯示所有時(shí)限的出口信息,并提供顯示文字及顯示數(shù)字兩種方式,方便檢修人員與定值單核對,大大提高了主變保護(hù)出口矩陣校驗(yàn)的效率。
關(guān)鍵詞:主變保護(hù);出口矩陣;檢測裝置;裝置設(shè)計(jì)
中圖分類號(hào):TM77 文獻(xiàn)標(biāo)識(shí)碼:A 文章編號(hào):1007-3175(2017)02-0056-03
Research and Development of a Kind of Tripping Outlet Detecting Device for Main Transformer Protection
SU Jie-feng, TAN Zi-yi, LEI Yu, LIANG Zhi-hao, CHANG Jian-jun
(Zhaoqing Power Supply Bureau, Guangdong Power Grid Corporation Limited, Zhaoqing 526060, China)
Abstract: This paper proposed a kind of design thought for the transformer protection tripping outlet device and the implementation method of software and hardware. By analyzing the potential change situation of the tripping outlet at different time limit in the main transformer protection action, the detection method and result display timing were determined. This device could be commonly used in the direct current system of DC 110 V or 220 V substation with higher input impedance, not having impacts on the direct current insulation level. Once protection test finished, all time limit tripping outlet information automatically displayed with two modes of character display and figure display. It is convenient for the maintenance personnel to check the constant value, which greatly improves the efficiency of transformer protection tripping outlet matrix inspection.
Key words: transformer protection; tripping outlet matrix; detector device; device design
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