An accurate and fast method and device for measuring and calculating wires in power transmission and transformation projects
A fast technology for power transmission and transformation engineering, which is applied in the field of accurate and rapid wire measurement and device for power transmission and transformation engineering, can solve the problems of insufficient accuracy, high risk of use, accidents, etc., and achieves high accuracy and short observation time. , the effect of easy operation
Active Publication Date: 2015-10-21
SHANGHAI MUNICIPAL ELECTRIC POWER CO +2
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Problems solved by technology
[0005] 1. The risk of personnel ascending is greatly affected by rain and strong wind
[0006] 2. Because it is measured by a tape measure, it is greatly affected by the strong wind
[0009] 2. Tape measurement is more risky when used in outage stations
Since the tape measure needs to be fully stretched when measuring, if one end of the tape is not pulled, the tape is easy to fall and float into the next live area, causing an accident
[0010] 3. Tape measurement is greatly affected by visibility, and it is completely unacceptable to use a tape measure at night when visibility is poor
Both methods are greatly affected by weather: theodolite is affected by visibility, while GPS measurement is not accurate enough when it is cloudy and the clouds are too thick
Method used
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Embodiment
[0036] Such as figure 1 As shown, an accurate and fast method for measuring and calculating wires in power transmission and transformation projects, the method includes the following steps:
[0037] Step 101) The prism-free total station receives the instruction input by the user. If the user selects arc length measurement, the prism-free total station enters the arc length measurement mode and goes to step 102). If the user selects sag measurement, the prism-free total station The instrument enters the sag measurement mode, and turns to step 103);
[0038] Step 102) The prism-free total station obtains the coordinate values (x1, y1, z1) and (x2, y2, z2) of the two frame hanging points A and B of the suspension soft busbar respectively, by inputting the known design sag value, by The non-prism total station adopts the calculation formula:
[0039] Gap l = ( x 1 -...
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The invention relates to a method and a device for accurately quickly measuring power transmission and distribution project leads. The method includes steps that firstly, a prism-free total station receives commands input by users and enters an arch length measuring mode and an arch sag measuring mode; secondly, the prism-free total station acquires coordinates of two frame suspension points A and B of a soft suspension bus and directly processes span, height, height different angle and required lead length of the frame suspension points by the aid of input given sag value; thirdly, the prism-free total station acquires coordinates of the two frame suspension points A and B of the soft suspension bus, measures coordinates of a lowest sag point D of the soft bus by utilizing a central point method and processes the coordinates to obtain sag values. Compared with prior art, the method and the device for accurately quickly measuring power transmission and distribution project leads have the advantages of simplicity in operation, short observation time, high measuring accuracy and no risks and the like.
Description
technical field [0001] The invention relates to a measuring method and a measuring device, in particular to a method and a device for accurately and quickly measuring and calculating wires in power transmission and transformation projects. Background technique [0002] As the requirements for safe and civilized construction of substations and the quality of construction technology are getting higher and higher, it is necessary to study innovative construction methods to improve labor productivity, construction quality and reduce safety risks. At the same time, in order to reduce the burden on the power grid and improve the reliability of power grid operation, power outage construction and power outage time should be minimized during the construction of the expansion station. Therefore, it is necessary to study new construction methods to meet the requirements. [0003] After the construction of the soft busbar is completed, due to the complex line layout in the station, it i...
Claims
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IPC IPC(8): G01B11/03G01B11/14
Inventor 于天刚金刚乐群房岭锋张永隆林坚徐萍徐晓蕾王斌刘婵娟张震徐坤郑伟华龚泉李颖刘稳坚金成生王玖凯穆松吕建龚蕾季咏梅陆伟明钱展佳卢音凌晨
Owner SHANGHAI MUNICIPAL ELECTRIC POWER CO