An Online Measurement Method for Insulator Creepage Distance on Transmission Lines
Abstract
:1. Introduction
2. Overview
3. Methods
3.1. Design of the Measurement System
3.2. Saliency Geometry Features of the Insulator
3.2.1. The Radius Feature of the Target
3.2.2. The Area Ratio Feature of the Target
3.3. Correction of the Errors Caused by the Geometric Layout
3.4. Structural Parameters Processing
4. Experimental Results and Discussion
4.1. Experimental Setup
- (1)
- Data collection: Construct the measurement system as shown in Figure 8. Next, adjust the electronic total station to make the laser precisely hit the metal handle of the insulator and then capture a clear image of the distant insulator on the transmission lines using the camera with a telephoto lens.
- (2)
- Solving parameters: Combine the measured depth distance of the insulator and the captured image to calculate the structural parameters of the insulator.
- (3)
- Creepage distance measurement: Post-process these parameters, obtain the matching result that is the expected insulator type, and then gain the final creepage distance.
4.2. Several Experiments
4.2.1. Test_1: Pose Stability Testing
4.2.2. Test_2: Comparative Testing with Error Correction
4.2.3. Test_3: Creepage Distance Determination
4.3. Outdoor Testing
5. Conclusions
Author Contributions
Funding
Conflicts of Interest
References
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t (mm) | 4 | 8 | 12 | 16 | 20 | 24 | 28 | 32 | 36 | 40 |
---|---|---|---|---|---|---|---|---|---|---|
Error (mm) | 0.0084 | 0.0169 | 0.0253 | 0.0337 | 0.0421 | 0.0506 | 0.0590 | 0.0674 | 0.0759 | 0.0843 |
G | A1 | A2 | A3 | A4 | A5 | A6 | A7 | A8 | T | Y/N | D (mm) | ||
---|---|---|---|---|---|---|---|---|---|---|---|---|---|
E (mm) | |||||||||||||
Q | |||||||||||||
A1 | 0.339 | 8.279 | 2.312 | 9.040 | 2.434 | 4.376 | 2.939 | 9.036 | A1 | Y | 380 | ||
A2 | 9.003 | 0.905 | 8.208 | 17.083 | 7.466 | 6.727 | 7.988 | 17.083 | A2 | Y | 400 | ||
A3 | 2.561 | 7.278 | 0.527 | 9.609 | 0.605 | 2.899 | 0.791 | 9.609 | A3 | Y | 450 | ||
A4 | 9.824 | 17.541 | 10.341 | 0.849 | 10.867 | 11.632 | 10.327 | 1.508 | A4 | Y | 570 | ||
A5 | 2.540 | 6.458 | 1.340 | 10.554 | 0.480 | 2.372 | 1.286 | 9.822 | A5 | Y | 460 | ||
A6 | 3.808 | 6.579 | 2.994 | 10.039 | 2.263 | 0.536 | 2.097 | 10.041 | A6 | Y | 410 | ||
A7 | 3.049 | 7.008 | 1.283 | 9.715 | 0.842 | 2.157 | 0.506 | 9.716 | A7 | Y | 450 | ||
A8 | 8.580 | 16.351 | 9.109 | 0.792 | 9.644 | 10.496 | 9.126 | 0.325 | A8 | Y | 550 |
N | (mm) | Θ (°) | R1 (mm) | R2 (mm) | R3 (mm) | R4 (mm) | ||||
---|---|---|---|---|---|---|---|---|---|---|
M | S | M | S | M | S | M | S | |||
(a) | 40.49 | 69.65 | 133.02 | 134.3 | 100.77 | 199.9 | 68.69 | 70.0 | NULL | NULL |
(b) | 47.59 | 82.08 | 136.12 | 136.7 | 93.06 | 93.8 | 61.99 | 61.5 | NULL | NULL |
(c) | 58.13 | 70.63 | 157.29 | 156.3 | 124.52 | 125.0 | 94.29 | 94.4 | 63.96 | 64.6 |
(d) | 31.43 | 92.23 | 137.06 | 136.3 | 98.64 | 99.7 | 62.47 | 62.0 | NULL | NULL |
N | S12 | S13 | S14 | S23 | S24 | S34 | ||||||
---|---|---|---|---|---|---|---|---|---|---|---|---|
M | S | M | S | M | S | M | S | M | S | M | S | |
(a) | 1.80 | 1.77 | 3.62 | 3.68 | NULL | NULL | 1.98 | 2.08 | NULL | NULL | NULL | NULL |
(b) | 2.14 | 2.12 | 4.88 | 4.94 | NULL | NULL | 2.30 | 2.33 | NULL | NULL | NULL | NULL |
(c) | 1.56 | 1.56 | 2.79 | 2.74 | 5.78 | 5.85 | 1.79 | 1.75 | 3.66 | 3.74 | 2.08 | 2.14 |
(d) | 1.92 | 1.87 | 4.79 | 4.83 | NULL | NULL | 2.56 | 2.59 | NULL | NULL | NULL | NULL |
N | Matching Error (mm) | Absolute Error (mm) | Insulator Model | Result Y/N | Creepage Distance (mm) |
---|---|---|---|---|---|
(a) | 0.7511 | Y | 450 | ||
(b) | 0.4365 | Y | 450 | ||
(c) | 0.5239 | Y | 560 | ||
(d) | 0.5665 | Y | 410 |
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Huang, J.; Liu, K.; Zeng, D.; Zhang, Z. An Online Measurement Method for Insulator Creepage Distance on Transmission Lines. Energies 2018, 11, 1781. https://doi.org/10.3390/en11071781
Huang J, Liu K, Zeng D, Zhang Z. An Online Measurement Method for Insulator Creepage Distance on Transmission Lines. Energies. 2018; 11(7):1781. https://doi.org/10.3390/en11071781
Chicago/Turabian StyleHuang, Jing, Kejian Liu, Dan Zeng, and Zhijiang Zhang. 2018. "An Online Measurement Method for Insulator Creepage Distance on Transmission Lines" Energies 11, no. 7: 1781. https://doi.org/10.3390/en11071781