Gas density relay overpressure signal maintaining method
A gas density, relay technology, applied in circuits, electrical switches, electrical components, etc., can solve the problems of difficulty in ensuring the safe operation of electricity and difficult to find.
Active Publication Date: 2019-06-18
国网甘肃省电力公司金昌供电公司
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And when the arcing of electrical equipment ends, its pressure will decrease, and when it returns to normal, its alarm signal will disappear at this time, and it will be difficult to find when the operating personnel are not on site, and it is difficult to ensure the safe operation of electric power, so innovation is urgently needed
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[0042] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments It is a part of embodiments of the present invention, but not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.
[0043] The invention provides a method for maintaining the overpressure signal of a gas density relay, which includes a casing of an electric contact pressure gauge, a load measuring element arranged in the casing, signal contacts of several electric contact pressure gauges, a movement, a pointer, and a scale The disk and joint are characterized i...
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The invention discloses a gas density relay overpressure signal maintaining method or an electric contact pressure gauge. A shell of a density relay (or the electric contact pressure gauge), a pressure measuring unit arranged in the shell, a plurality of signal contacts of the electric contact pressure gauge, a core, a pointer, a dial and a connector are included. The gas density relay overpressure signal maintaining method is characterized in that a maintaining mechanism after a signal action is adopted. The maintaining mechanism and a reset mechanism are developed according to the method through a huge innovation, and an electrical equipment arcing overpressure alarm function can be achieved. When electrical equipment is arcing and the pressure of the electrical equipment is excessivelyhigh, an overpressure alarm can be given. After arcing of the electrical equipment is over and the pressure of the electrical equipment is normal, the alarm signal is maintained, an operator can discover the arcing phenomenon of the electrical equipment and timely process the electrical equipment with the arcing phenomenon, and therefore power safety running is ensured.
Description
technical field [0001] The invention relates to the field of electric power technology, in particular to a method for maintaining an overpressure signal of a gas density relay, in particular to a gas density relay with contact action holding. Through great innovation, it has a holding mechanism and a reset mechanism, which can realize the holding function of the electrical equipment arcing overpressure alarm. That is, when the electrical equipment arcs and its pressure is too high, an overpressure alarm can be issued. When the arcing of electrical equipment is over and the pressure is normal, the alarm signal will be maintained all the time, allowing the operator to discover the arcing phenomenon of electrical equipment, and deal with the electrical equipment in time to ensure the safe operation of electric power. Background technique [0002] At present, the signal mechanism (signal control part) of the sulfur hexafluoride gas density relay used to monitor the equipment, e...
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IPC IPC(8): H01H35/26
CPCH01H9/16H01H35/26
Inventor 金海勇吴胜元张元昊贺兵
Owner 国网甘肃省电力公司金昌供电公司