On-line temperature measuring device for overhead power transmission line and temperature measuring method thereof
A technology of overhead transmission lines and temperature measuring devices, which is applied in the direction of using electric devices, measuring devices, and thermometers using electric/magnetic elements that are directly sensitive to heat, can solve the problem that temperature data cannot reflect the real situation of the line, and achieve electromagnetic Good shielding effect, good heat dissipation performance, high safety and reliability
Active Publication Date: 2013-12-11
广州骏拓电力科技有限公司 +1
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The disadvantage of this kind of device is that the temperature measurement part is inside the closed device, the heat dissipation conditions are quite dif
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[0033] Such as figure 1 As shown, in the online temperature measuring device in the prior art, the measuring instrument is placed in a spherical online temperature measuring device 1, and the spherical online temperature measuring device 1 is clamped on the wire 2, so that the wire 2 passes through the spherical online temperature measuring device 1 The center of the sphere; inside the spherical online temperature measuring device 1, the temperature measuring probe is in contact with the wire 2 for temperature measurement. The spherical online temperature measuring device 1 made of metal is used to shield the external electromagnetic field; the disadvantage of this kind of device is that the temperature measuring part is inside the closed device, and the heat dissipation conditions are quite different from the real heat dissipation conditions of the external circuit. Can not reflect the real situation of the line. In order to solve the problems existing in the prior art, the ...
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The invention discloses an on-line temperature measuring device for an overhead power transmission line. The on-line temperature measuring device comprises an overhead wire and a monitoring device, and the monitoring device comprises a casing, a temperature measuring sensor, a power supply device, an energy-gaining iron core, a communication device, a circuit board and a supporting leg stand. The invention further discloses a temperature measuring method applied to the on-line temperature measuring device for the overhead power transmission line. The temperature measuring method includes the following steps of 1, opening a left half ring of the temperature measuring device and a right half ring of the temperature measuring device, 2, after the overhead wire passes through the axis of the temperature measuring device, using a rotary tool to rotate an opening and closing structure so as to close the left half ring of the temperature measuring device and the right half ring of the temperature measuring device and enable a rubber ring to be fixed to the overhead wire, attaching the temperature measuring sensor to the outer surface of the overhead wire through the elastic force of a spring device while locking the temperature measuring device, 3 sending temperature data obtained by the temperature measuring sensor to a data receiving station through the communication device in a wireless communication mode. The on-line temperature measuring device for the overhead power transmission line and the temperature measuring method of the on-line temperature measuring device for the overhead power transmission line have the advantages of being accurate in temperature measuring result and the like.
Description
technical field [0001] The invention relates to an overhead power transmission line technology, in particular to an on-line temperature measuring device and a temperature measuring method for the overhead power transmission line. Background technique [0002] In the field of electric power, the maximum allowable operating temperature of high-voltage overhead conductors is an important factor affecting the transmission capacity of overhead lines. my country's current technical regulations stipulate that the maximum allowable operating temperature of high-voltage overhead conductors (steel-cored aluminum stranded wires) is 70°C, and the actual long-term operating temperature of the conductors is higher than 70°C. At present, there are two main methods to improve the transmission capacity of overhead transmission lines: static temperature increase technology and dynamic capacity increase technology. Among them, the static capacity increase technology breaks through the current...
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Inventor 刘刚刘志陆
Owner 广州骏拓电力科技有限公司
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