換流變現(xiàn)場(chǎng)負(fù)載試驗(yàn)補(bǔ)償電容塔設(shè)計(jì)
劉凡棟,王偉,鄧文斌
(中國(guó)南方電網(wǎng)有限責(zé)任公司超高壓輸電公司貴陽(yáng)局,貴州 貴陽(yáng) 550081)
摘 要:介紹了大型變壓器負(fù)載試驗(yàn)的關(guān)鍵技術(shù)及電容補(bǔ)償原理,以一臺(tái)500 kV 單相雙繞組換流變?yōu)槔?,從試?yàn)接線、設(shè)備參數(shù)選擇、補(bǔ)償容量計(jì)算、試驗(yàn)步驟等方面分析了如何在換流站現(xiàn)場(chǎng)電源容量有限的條件下,開(kāi)展換流變負(fù)載溫升試驗(yàn)。提出了一種利用換流站已有的交流濾波器,通過(guò)更改電容塔接線方式來(lái)解決試驗(yàn)電源容量不足的問(wèn)題,具有很好的工程實(shí)際指導(dǎo)意義。
關(guān)鍵詞:換流變;負(fù)載試驗(yàn);濾波器;補(bǔ)償
中圖分類號(hào):TM406;TM531.4 文獻(xiàn)標(biāo)識(shí)碼:B 文章編號(hào):1007-3175(2018)02-0045-05
Compensation Capacitance Tower Design of Converter Transformer Field Load Test
LIU Fan-dong, WANG Wei, DENG Wen-bin
(Guiyang Bureau of China Southern Power Grid Extra High Voltage Power Transmission Company, Guiyang 550081, China)
Abstract: Introduction was made to the key technology of large transformer load test and the principle of capacitance compensation. Taking a 500 kV one-phase duplex winding converter transformer for example, this paper analyzed how to carry out the converter transformer load temperature-rise test under the condition of site limited power capacity in converter transformer station from aspects of test connection, device parameters selection, compensation capacity calculation and test procedure etc. This paper proposed to solve the kind of problem of insufficient test power capacity by using the existing alternating current filter in converter transformer to change the capacitance wiring mode. It has good engineering practice guiding significance.
Key words: converter transformer; load test; filter; compensation
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