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Schematic diagram of the molecular structure of methyl vinyl silicone rubber.

Schematic diagram of the molecular structure of methyl vinyl silicone rubber.

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Context 1
... external insulation of composite insulators is usually made of high-temperature vulcanized silicone rubber, and high-temperature vulcanized silicone rubber is mainly made of raw rubber, which is formed through cross-linking reaction of vulcanizing agent. The main components of the raw rubber used in production are methyl vinyl siloxane chain links and dimethyl siloxane chain links, and its molecular structure is shown in Figure 1. The aging performance of silicone rubber is closely related to its spiral molecular structure, related groups and environmental factors. ...
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... verify the accuracy of the above calibration results, this paper continues to do partial placement experiments on 11 sets of samples. The experimental device and schematic diagram are shown in Figure 10. The HFCT high-frequency current sensor is used to detect the pulse current of the partial discharge experiment. ...
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... the data recorded in the partial discharge experiment in Section 2.2.3, the time-domain waveforms obtained from the three measurements of sample 1# are shown in Figure 11. It can be seen from Figure 11 that the main pulse of the discharge waveform is mainly in the range of 0-100μs. ...
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... the data recorded in the partial discharge experiment in Section 2.2.3, the time-domain waveforms obtained from the three measurements of sample 1# are shown in Figure 11. It can be seen from Figure 11 that the main pulse of the discharge waveform is mainly in the range of 0-100μs. When the voltage is applied between the plates, the amplitude of the main pulse waveform is about 0.1V. ...
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... the increase in voltage, the amplitude of main pulse rises slightly. Figure 12 shows the phase spectrum corresponding to the three discharges in the above figure. Each point in the figure represents a discharge pulse. ...
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... partial discharge voltage decreases as the insulator ages. The final sample aging degree calibration is shown in Figure 13. ...