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AN IMPROVED DEVICE TO CONSISTENTLY MAINTAIN DRY AIR AT HIGHER PRESSURE INSIDE A TRANSFORMER TANK DURING LONG-DISTANCE OF THE TRANSFORMER TANK
AN IMPROVED DEVICE TO CONSISTENTLY MAINTAIN DRY AIR AT HIGHER PRESSURE INSIDE A TRANSFORMER TANK DURING LONG-DISTANCE OF THE TRANSFORMER TANK
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机译：一种改进的装置，用于在变压器油箱长距离运行期间始终保持高压内的干燥空气
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摘要
This invention relates to an improved device to consistently maintain dry air at higher pressure inside a transformer tank during log- distance of the transformer tank comprising at least one air/nitrogen gas cylinder (2) having a valve means (3) to supply regulated gas/air upon activation; a connecting pipe (4) adjoining the air/gas cylinder (2) to a transformer tank (1) with corecoil assembly, the transformer tank (1) is filled with gas/air maintained at a pressure higher than that of the ambient pressure, the at least one cylinder (2) upon activation supplying gas/air to said transformer tank (1) to maintain the higher pressure, the improvement is characterized in that a non-return valve (5) is interposed between the cylinder (2) and the tank (1) so as to permit one-way gas flow to the tank (1) and prevent egress of the available gas from inside the tank (1) when the connecting pipe (4) is disabled to supply additional gas to the tank (1).
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