A circuit breaker opening and closing spring pressure monitoring system and detection method
A closing spring, pressure monitoring technology, applied in the direction of force/torque/work measuring instrument, machine/structural component testing, instrument, etc., can solve the problem that the circuit breaker spring fatigue cannot be monitored and so on
Active Publication Date: 2021-09-03
STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST +1
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Problems solved by technology
[0005] The purpose of the present invention is to provide a circuit breaker spring pressure monitoring method and system to solve the current problem that the fatigue of the circuit breaker spring during long-term operation cannot be monitored
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Embodiment Construction
[0044] The present invention will be described in further detail below in conjunction with the accompanying drawings.
[0045] Such as figure 1 As shown, the opening or closing spring 2 of the circuit breaker is installed in the spring mechanism shell 1 of the circuit breaker, and the bottom of the opening or closing spring 2 of the circuit breaker is provided with a spring mechanism tray 4, and the opening or closing spring 2 of the circuit breaker and the spring mechanism A pressure sensor 3 is arranged between the trays 4, the sensor external wire 6 of the pressure sensor 3 passes through the spring mechanism tray 4, the spring mechanism tray 4 is installed on the guide rod 7 through the fixing nut 5, and the guide rod 7 axially passes through the spring mechanism shell 1 center.
[0046] First, an embodiment of a circuit breaker spring pressure monitoring system of the present invention will be described.
[0047] as attached figure 2 As shown, the circuit breaker open...
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The invention provides a circuit breaker spring pressure monitoring system and detection method. The monitoring system includes a pressure sensor, a processing unit and a monitoring unit. The pressure sensor is installed on the tray of the circuit breaker opening and closing spring mechanism and the opening and closing spring between; the output end of the pressure sensor is connected with the input end of the processing unit, and is used to receive the pressure value of the opening and closing spring of the circuit breaker detected by the pressure sensor; the input end of the processing unit is also connected with the auxiliary contact of the circuit breaker to be tested point connected to monitor the input signal of the circuit breaker; the processing unit communicates with the monitoring system, and the monitoring system sends detection instructions and circuit breaker related parameter information to the processing unit, and receives Circuit breaker opening and closing status and corresponding opening and closing spring pressure values. The invention can effectively monitor the real-time running condition of the spring, has wide application range, and has good market prospect and application value.
Description
technical field [0001] The invention relates to a circuit breaker spring pressure monitoring method and system, and belongs to the technical field of primary equipment intelligence in electric power systems. Background technique [0002] Smart primary equipment is an important symbol of smart grid. Improving the intelligence level of primary equipment is one of the key technologies for the development of smart grid, which plays a vital role in promoting the safe, stable and efficient operation of the power grid. Among them, the circuit breaker is an important part of the primary equipment of the power grid, and its intelligence level must be greatly improved to meet the urgent needs of the smart grid. [0003] The spring operating mechanism is widely used in circuit breakers with a voltage level of 220 kV and below due to its small operating power and low maintenance, accounting for a large proportion. However, after the spring operating mechanism has operated under pressur...
Claims
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IPC IPC(8): G01L5/00G01M13/00
CPCG01L5/0057G01M13/00
Inventor 辛伟峰王栋张卓闫庆方张海星王斌王磊马德英付海金郭旭路光辉翟登辉王伟杰兰五胜郭磊丁国君刘黛蒂
Owner STATE GRID HENAN ELECTRIC POWER ELECTRIC POWER SCI RES INST