Wireless intelligent sensor for on-line monitoring of transformer substation based on solar power supply

Abstract

The invention discloses a wireless intelligent sensor for on-line monitoring of a transformer substation based on solar power supply. The wireless intelligent sensor comprises: a mounting shell; an upper cover which is arranged on the upper side of the mounting shell and is fixedly connected with the mounting shell; a solar cell panel which is arranged on the side edge of the mounting shell and is fixed on the mounting shell; a protective shell which is arranged on the outer side of the solar cell panel and is fixedly connected with the mounting shell; a circuit control board which is arranged in the circuit board mounting groove and is fixed with the mounting shell; a rechargeable battery which is arranged on the upper layer of the battery mounting groove; and a sensor assembly which is arranged in the mounting head and is electrically connected with the circuit control board. A through hole is formed in the middle of the partition, and a circuit of the circuit control board is electrically connected with the rechargeable battery and the sensor assembly on the lower layer through the through hole; and the circuit control board comprises a solar charging management circuit, a microprocessor, a sensor interface, a wireless module and a rechargeable battery. The sensor is compact in structure and convenient to install.

Description

technical field [0001] The invention relates to the technical field of substation safety detection, in particular to a wireless intelligent sensor for on-line monitoring of substations powered by solar energy. Background technique [0002] Oil temperature and oil pressure wireless smart sensors are widely used in substations. Switch cabinets and circuit breakers are high-voltage electrical appliances widely used in power systems. The reliable operation of these sensors has become one of the biggest concerns of the power supply and utilization departments. [0003] Existing equipment used to monitor oil shortage in substations is realized by monitoring temperature and pressure; the temperature information and pressure information collected by relays in the prior art cannot be transmitted to the remote end, so people must read on site; for mechanical density The on-site reading (meter reading) of the relay is also slightly complicated, and some sulfur hexafluoride density rel...

AI Technical Summary

Problems solved by technology

[0003] Existing equipment used to monitor oil shortage in substations is realized by monitoring temperature and pressure; the temperature information and pressure information collected by relays in the prior art cannot be transmitted to the remote end, so people must read on site; for mechanical density The on-site reading (meter reading) of the relay is also slightly complicated, and some sulfur hexafluoride density relays whose installation positions are not conducive to observation are also likely to cause errors in manual readings; after long-term practice, some existing technologies are equipped with pressure sensors. Realize the sending and receiving of signals, so that mechanical and digital sulfur hexafluoride structures exist at the same time. After our long-term practice monitoring and analysis, as well as the feedback from the on-site operation and maintenance personnel and the accounting of the installation quantity, the installation of pressure sensors is currently The cost and reliability still need to be improved. When installing the pressure sensor, it is necessary to re-disassemble and reassemble the installation position of the entire sulfur hexafluoride. This will cause the power outage time to be too long, the installation organization is too complicated, and the installation and maintenance results are too high. In many Local promotion has encountered obstacles

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