Electric contact pressure gauge with contact action keeping function
An electric contact pressure gauge, electric contact technology, applied in the direction of measuring fluid pressure, circuits, electric switches, etc., can solve the problems of difficult to ensure the safe operation of electric power, difficult to find and so on
Active Publication Date: 2018-03-13
SHANGHAI ROYE ELECTRICAL CO LTD
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Problems solved by technology
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 present invention provides an electric contact pressure gauge with contact action maintenance and uses a gas density relay with temperature compensation as an example to illustrate and illustrate. For details, see figure 1 , figure 2 , image 3 and Figure 4 , Figure 4 It is a partial cross-sectional schematic diagram of a sulfur...
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The invention discloses an electric contact pressure gauge with a contact action keeping function or a gas density relay allowing a contact (alarm contact) to be kept. The electric contact pressure gauge comprises a shell of the electric contact pressure gauge (or the density relay), a pressure measuring element in the shell, a plurality of signal contacts of the electric contact pressure gauge, amachine core, a pointer, a dial and a connector. The electric contact pressure gauge is characterized by further comprising a holding mechanism after signal movement. In particular, through great innovation, the holding mechanism and a reset mechanism are developed and the electric-equipment arcing overpressure alarming function can be realized. When a piece of electrical equipment is arcing, anoverpressure alarm can be given if the pressure of the electrical equipment is too high. After the arcing of the electrical equipment is over, the alarm signal is always kept when the pressure of theelectrical equipment is normal, so an operator can discover the arcing phenomenon of the electrical equipment and timely deal with the arcing electrical equipment, therefore guaranteeing the safe operation of electric power.
Description
technical field [0001] The invention relates to the field of electric power technology, in particular to an electric contact pressure gauge with contact action holding, 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, especiall...
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IPC IPC(8): H01H35/26G01L19/12G01N9/00
CPCG01L19/12G01N9/00H01H35/26
Inventor 金海勇黄小泵曾伟贺兵
Owner SHANGHAI ROYE ELECTRICAL CO LTD