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Automatic tester for dielectric strength of insulating oil

A dielectric strength and tester technology, which is applied in the direction of testing dielectric strength, etc., can solve the problems of manual printing, automatic reset, and influence on the accuracy of test data, etc., and achieve the effect of simple operation and elimination of unevenness and air bubbles

Inactive Publication Date: 2015-12-09
YANGZHOU SHUANGBAO ELECTRIC EQUIP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the tester with the above structure does not have an automatic detection function, and cannot be automatically reset after starting up, and the test results need to be printed manually, and cannot be automatically printed out.
In addition, the parameters of the tester with the above structure cannot be freely set according to the needs of users, and the accuracy of the test data will be affected when the oil sample is uneven or has air bubbles

Method used

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  • Automatic tester for dielectric strength of insulating oil
  • Automatic tester for dielectric strength of insulating oil
  • Automatic tester for dielectric strength of insulating oil

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Example 1, such as figure 1 As shown, the automatic dielectric strength tester for insulating oil includes a control panel, and the control panel has a power switch 1, a power socket 2, a high voltage chamber 3, a safety switch 4, a safety grounding socket 5, 3A insurance 6, and a display screen 7 , setting plate 8, indicator light 9, keyboard 10 and printer 11.

[0052] Such as figure 2 As shown, the hyperbaric chamber 3 includes a hyperbaric chamber body 301 , and two high-pressure columns 302 are arranged inside the hyperbaric chamber body 301 , and an oil cup 304 is arranged between the two high-pressure columns 302 .

[0053] The cup wall of the oil cup 304 is connected with two shafts 303, the shafts 303 run through the cup wall of the oil cup 304, one end of the shaft 303 is arranged inside the oil cup 304, and the other end of the shaft 303 is arranged in the oil cup 304 outside, the oil cup 304 is supported between two high-voltage columns 302 through the sh...

Embodiment 2

[0065] Embodiment 2, an automatic tester for the dielectric strength of insulating oil, differs from Embodiment 1 in that at least two high-voltage columns 302 are provided in the hyperbaric cabin body 301, and each two is a group, and each group of high-voltage columns 302 can be provided with one The hyperbaric chamber 3 can carry out multiple experiments at the same time, which greatly improves the work efficiency.

[0066] Such as Figure 3-Figure 9 Shown, tester operating steps of the present invention are as follows:

[0067] 1. Input power

[0068] Connect the safety ground, plug in the 220V AC power supply, and check that the power supply is correct.

[0069] 2. Take oil samples

[0070] 2.1. Adjust the distance between the two electrodes 306 in the oil cup 304 to 2.5mm; adjust the electrode 306 in the oil cup 304 to the middle position, tighten the shaft fixing screw 305, and take the feeler gauge 307 between the two electrodes 306 Close to the two electrodes 306,...

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Abstract

Provided is an automatic tester for the dielectric strength of insulating oil. The automatic tester comprises a high-voltage cabin, the high-voltage cabin comprises a high-voltage cabin body, at least two high-voltage columns are arranged in the high-voltage cabin body, an oil cup is arranged between each two high-voltage columns, two shaft rods are connected on a cup wall of the oil cup, the shaft rods penetrate through the cup wall of the oil cup, one ends of the shaft rods are arranged in the oil cup, the other ends of the shaft rods are arranged at the external part of the oil cup, the oil cup is supported between the two high-voltage columns via the shaft rods positioned at the external part of the oil cup, one end of each shaft rod, positioned in the oil cup, is connected with an electrode, and a gap is arranged between two electrodes. By adopting the above scheme, the function of automatic detection is provided, the tester automatically enters a reset state and performs zero returning of a voltage regulator, the function of automatic printing and output is provided, test parameters can be changed according to the requirement of users, the operation is flexible, non-uniformity of oil samples can be eliminated, and the test accuracy of bubbles can be improved.

Description

technical field [0001] The invention relates to a test instrument, in particular to an automatic tester for the dielectric strength of insulating oil. technical background [0002] Insulating oil is widely used in high-voltage electrical equipment such as transformers, oil circuit breakers, oil-filled cables, power capacitors and oil bushings. During operation, due to the action of oxygen, high temperature, high humidity, sunlight, strong electric field and impurities, the performance of insulating oil will gradually deteriorate, so that it cannot fully exert its insulating effect. For this reason, it is necessary to carry out relevant tests on insulating oil on a regular basis , to identify whether its performance has deteriorated. [0003] In the traditional dielectric strength test of insulating oil, it is necessary to manually operate the stirring device to stir the insulating oil, which increases the instability of manual stirring, and the electrodes must be cleaned fr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
Inventor 何文春高荣庆邓昊
Owner YANGZHOU SHUANGBAO ELECTRIC EQUIP
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