Switching tube for switch density relay test and micro-water test connectors
A technology of density relays and conversion conduits, which is applied to the components of electrical measuring instruments, instruments, and measuring electronics. It can solve the problems of affecting the reliability of switches, power supply, reducing work efficiency, and long time required to replace test joints. Reliability, improvement of work efficiency, and effect of reducing test time
Inactive Publication Date: 2013-09-11
CHANGCHUN POWER SUPPLY OF JILIN POWER +1
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Problems solved by technology
During the maintenance process of the SF6 switch, it takes a long time for the maintenance personnel to replace the test joint, which is the main key factor affecting the test efficiency, reduces the work efficiency, and affects the reliability of the switch and power supply.
Method used
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Embodiment Construction
[0018] Such as figure 1 As shown, a switch-density relay test and a micro-water test joint conversion conduit, including a conversion conduit joint 1, a conduit 2, a buckle 3, a hexagonal nut 4, a joint 5, the conversion conduit joint 1 is connected by a conduit 2 The buckle 3 is fixedly connected with the conversion conduit connector 1; the hexagonal nut 4 is fixed on the buckle 3; the connector 5 is connected with a water test instrument.
[0019] The plug part of the test tube connected to the water test instrument is selected from a high-quality cylindrical copper block. The length of the front part of the buckle is 11mm, the length of the middle part is 3mm, and the length of the back part is 2mm. The appearance of the hexagonal nut is designed as a hexagonal prism. The length of each cross-section is convenient for twisting with the board, and the inner side is designed as an external thread, so as to connect with the next part reliably and prevent air leakage; the joint is ...
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The invention discloses a switching tube for switch density relay test and micro-water test connectors, and belongs to the field of maintenance and test devices for power systems. The switching tube comprises switching tube connectors, a tube, fasteners, hexagon nuts and connectors; the switching tube connectors are connected with each other by the tube; the fasteners are fixedly connected with the switching tube connectors; the hexagon nuts are fixed onto the fasteners; the connectors are connected with micro-water test instrument. The switching tube has the advantages that the traditional density relay test connectors can be replaced, and accordingly the work efficiency is improved; the superiority and the reliability of the novel connectors are displayed as compared with the traditional test connectors, high test efficiency is guaranteed in a maintenance procedure, and the power supply reliability is guaranteed; total required connector replacement time for a density relay test and a micro-water test in the maintenance and test procedure is 10 minutes instead of the original 18 minutes for a 220kV circuit and is 6 minutes instead of the original 10 minutes for a 66kV circuit, the test efficiency is improved, and the test time is shortened.
Description
Technical field [0001] The invention belongs to the field of power system maintenance test devices, and particularly relates to a conversion conduit for the joint of SF6 switch density relay test and water test. Background technique [0002] At present, there is no common test joint for SF6 switch density relay verification and water test in the power system maintenance test operation. In the process of on-site maintenance, it is necessary to carry out the micro-water test of the laboratory specialty and the verification of the SF6 switch density relay of the instrument specialty respectively. If the two majors are working at the same working place, two sets of test connectors and the switch body are usually used. Connection of air release valve interface. [0003] Due to the long-term maintenance and use of the switch density relay vent valve port, it is easy to be worn out, and the test joint is not in solid contact with the vent valve port, which causes air leakage during the t...
Claims
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IPC IPC(8): G01R1/02G01N9/00
Inventor 翟永杰牛小威王鹏飞李红卫袁衍炜王允刘佳佳
Owner CHANGCHUN POWER SUPPLY OF JILIN POWER