Automatic indicator for high-low pressure heating position of electrical power system

Abstract

The invention provides an automatic indicator for a high-low pressure heating position of an electrical power system. The automatic indicator for the high-low pressure heating position of the electrical power system is simple in structure, small in size and convenient to transport and install. A TiNi round-trip memory alloy intelligent spring serves as a temperature-sensing element, the temperature of a connector which easily emits heat is sensed through the TiNi round-trip memory alloy intelligent spring, so that the TiNi round-trip memory alloy intelligent spring does mechanical movement to control a read indicating flag to be ejected out in order to display the connector which easily emits heat. The automatic indicator for the high-low pressure heating position of the electrical power system does not need energy, is not limited by environment temperature, humidity, wind speed, shielding objects and other environmental conditions, can efficiently guarantee energy conservation and the control over the heat emitting defect of the connector and can be widely applied to connectors of the electrical power system to motor heat emission of the connectors. The automatic indicator for the high-low pressure heating position of the electrical power system is an economical, energy-saving and practical product, has high application value and good application prospects, and has good economic and social benefits.

Description

technical field [0001] The invention relates to the technical field of application of new memory alloy materials, in particular to an automatic indicator for high and low voltage heating parts of a power system. Background technique [0002] Transmission lines occupy an important position in the entire power system, and their operating status directly affects the safety and efficiency of the power system. Eliminating line defects and reducing faults are important tasks for the power system to ensure the safety of transmission lines. Contact open circuit fault is the most common among transmission line faults, and it is also a weak link in the line, which often causes heat and burnout during operation. Especially in summer, in the case of power overload, high-voltage transmission lines are most prone to heating faults. There are three main reasons for contact heating: contact surface oxidation corrosion, loose wire joints and poor installation quality. High-voltage, ultra-h...

AI Technical Summary

Problems solved by technology

Defects in the two detection methods: Manual on-site measurement method: (1) Remote viewing temperature patch method, that is, pre-adsorbing multiple temperature patches of different colors at the connection point of the wire, they will melt at different temperatures, and observe through a telescope The melting condition of each patch can be used to determine the approximate temperature range

Third, for overhead high-voltage transmission lines, it is difficult to accurately measure the ambient humidity, temperature, wind speed and detection distance due to many restrictions

(2) Most power companies actively carry out the establishment of equipment infrared technology ledgers, so that this method has not been widely used. It can be seen that there are great difficulties in the application of ledger analysis method

These manual on-site measurements have their inherent shortcomings: they are greatly affected by the weather and cannot be detected at any time. Most of the lines are geographically distributed, and a lot of manpower and material resources will be wasted for one-off detection.

But there are new problems in the field: if the rain and dew in the atmosphere adhere to the surface of the optical fiber, it will reduce the insulation performance and cause safety accidents

However, there are problems such as wireless communication being greatly interfered by the electromagnetic field near the wire, the power supply of the temperature measurement module is difficult, the temperature acquisition accuracy is easily affected by the high-voltage electric field, and the detection cost is high.

[0003] In short, using the above detection methods to detect heating defects is not only labor-intensive and low-precision, but most of them require energy, the detection is complicated, and the detection cost is high.

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