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我厂#1主变为110KV、120MVA强油水冷却变压器。装有冷却器4台,满负荷时开3台。 83年甲号潜油泵出现故障解体检修。在装复时将其放气孔打开放气,由于母管有负压造成主变进气只好关闭放气孔;油的循环把甲号泵内的气体全部带入主变内。 83年10月13日甲号泵投入运行,14日2点30分主变轻瓦斯动作发信号,以后气体越来愈多(在一个班内轻瓦斯动作达22次,每次放气350—600cm~3),甚至不到一分钟就要排气一次。14日13点停甲泵并将其进出油阀门
I plant # 1 main transformer 110KV, 120MVA strong oil-water cooling transformer. Equipped with four coolers, open at full load 3 units. 83 years submersible pump failure disintegration overhaul. In the complex when the vent opening deflate, due to a negative pressure in the mother tube caused by the main transformer into the gas had to close the vent; oil circulation to pump all the gas inside the main transformer. On October 13, 83, No. 1 pump was put into operation. At 2:30 on the 14th, the main transformer turned into a signal of gas operation. After that, more and more gas was emitted (light gas moves up to 22 times in one class and deflated by 350- 600cm ~ 3), even less than a minute will exhaust once. At 13 o’clock on the 14th Park armor pump and out of the oil valve