Online monitoring device for temperatures of isolation contact of high-voltage distribution device
A technology for isolating contacts and high-voltage power distribution. It is applied in the direction of using electrical devices, thermometers, and measuring devices. It can solve problems such as poor manufacturing quality of plugs, over-limit temperature rise of contacts, and poor contact of contacts, and achieve high-voltage isolation. problem, low production cost, and simple structure
Inactive Publication Date: 2014-10-29
ANHUI XINCHEN ELECTRICAL EQUIP
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Problems solved by technology
Plugs are used to connect the circuit breaker and power distribution device in the handcart-type high-voltage power distribution device currently commonly used. When there are poor manufacturing quality of the plug, improper transportation, vibration when the circuit breaker is opened and closed, and poor installation, etc., it may cause problems. Cause poor contact of the contact, increase the contact resistance, and cause the temperature rise of the contact to exceed the limit
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[0015] like Figure 1~3 as shown, figure 1 It is a structural schematic diagram of an on-line temperature monitoring device for isolation contacts of a high-voltage power distribution device proposed by the present invention; figure 2 It is an A / D conversion circuit diagram of a temperature data acquisition unit in a high-voltage power distribution device isolation contact temperature online monitoring device proposed by the present invention; image 3 It is a schematic diagram of the acousto-optic alarm circuit of the acousto-optic alarm unit in the on-line monitoring device for the isolated contact temperature of a high-voltage power distribution device proposed by the present invention.
[0016] refer to figure 1 , a high-voltage power distribution device isolation contact temperature online monitoring device proposed by the present invention includes a high-voltage end module 1 at a high potential and a low-voltage end module 2 at a low potential. The high-voltage end m...
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The invention discloses an online monitoring device for the temperatures of an isolation contact of a high-voltage distribution device. The online monitoring device comprises a high-potential high voltage terminal module and a low-potential low voltage terminal module; the high voltage terminal module comprises temperature sensors, a temperature data acquisition unit, a high voltage terminal microprocessor, a power module and a radio data transmission unit, the input end of the high voltage terminal microprocessor is connected with a plurality of temperature sensors, each temperature sensor is connected to the high voltage terminal microprocessor by use of the temperature data acquisition unit, the output end of the high voltage terminal microprocessor is connected to the radio data transmission unit, and the power module is arranged on the high voltage terminal microprocessor; the low voltage terminal module comprises a low voltage terminal microprocessor, a wireless transceiver module, a data storage unit, a keyboard unit, a display unit, an audible and visual alarm unit and a communication unit. The online monitoring device for the temperatures of the isolation contact of the high-voltage distribution device is simple in structure, low in production cost, and stable and accurate in data measurement; meanwhile, the online monitoring device is added with a historical data storage function, an audible and visual alarm function and a data uploading function.
Description
technical field [0001] The invention relates to the technical field of mine-used high-voltage power distribution devices, in particular to an on-line temperature monitoring device for isolation contacts of high-voltage power distribution devices. Background technique [0002] Coal mine high-voltage power distribution device is one of the key equipment that affects the safety of coal mine production, and it is responsible for the dual tasks of feeding power to the underground working face and fault protection. With the continuous improvement of the voltage level of the coal mine underground power grid, the reliability requirements of the power supply system and power distribution equipment for the electrical equipment are also getting higher and higher. Accidents caused by high temperature caused by poor contact of isolation contacts in high-voltage power distribution devices occur from time to time. Therefore, on-line monitoring of the temperature of isolation contacts is of...
Claims
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IPC IPC(8): G01K7/18
Inventor 李乐群
Owner ANHUI XINCHEN ELECTRICAL EQUIP