Method bad system for controlling conductivity of environmental test solution of dry-type transformer

• Main Authors: DENG XIANSHENG, WANG YINGYING, YUAN TIAN, YING SI, FANG RUI, FU CHAO, YANG GUOTAI, WANG XINSHENG
• Format: Patent
• Language: Chinese; English
• Published: 06.08.2019
• Subjects: CONTROL OR REGULATING SYSTEMS IN GENERAL; CONTROLLING; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS ORELEMENTS; PHYSICS; REGULATING; TESTING

The invention discloses a method for controlling the conductivity of an environmental test solution of a dry-type transformer. The method comprises: adding crystal salts into a saturated liquid tank,dissolving the crystal salts in the saturated liquid tank completely to realize a super-saturation state, and generating a supersaturated solution; injecting the supersaturated solution and purified water into a mixed liquid tank; with a conductivity sensor in the mixed liquid tank, measuring the conductivity of the mixed liquid of the supersaturated solution and the purified water and sending theconductivity of the mixed liquid to a monitoring and control general system MCGS; comparing the received conductivity with a preset conductivity value by the MCGS and adjusting a ratio of the supersaturated solution to the purified water in the mixed liquid tank based on a comparison result; and injecting the mixed liquid based on the ratio into a finished liquid tank and spraying the mixed liquid based on the ratio in th