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Three-oil cup insulating oil withstand voltage tester

A technology of withstand voltage tester and insulating oil, which is applied in the direction of testing dielectric strength, etc., can solve problems such as potential safety hazards, and achieve the effects of improved work efficiency, light weight and fast speed

Active Publication Date: 2010-10-13
WUHAN HUANENG SUNSHINE ELECTRIC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The positive and negative electrodes of the insulation testing oil cup are set horizontally with the positive and negative electrode holders, which are exposed outside and pose a safety hazard

Method used

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  • Three-oil cup insulating oil withstand voltage tester
  • Three-oil cup insulating oil withstand voltage tester
  • Three-oil cup insulating oil withstand voltage tester

Examples

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Embodiment Construction

[0010] Such as figure 1 As shown, the input unit connected to the main control single-chip CPU1 is the operation panel 2, the output display unit is the liquid crystal display 3, the storage unit 4 is used for data storage, and the communication unit adopts the USB interface and / or the RS232 interface 13. The control output terminal of the main control single-chip microcomputer CPU1 is connected to the stepper motor 5, the output of the stepper motor 5 is connected to the adjustment terminal of the autotransformer 6, and the output of the autotransformer 6 is connected to the transformer, and the transformer adopts a dry-type transformer. In this embodiment, there are ±40kv dry-type transformer 7,10. A current sampling device 15 is connected between the ±40kv dry-type transformers 7 and 10 for collecting the current of the dry-type transformer to realize the detection of the dry-type transformer. The signal output of the autotransformer 6 is connected to the ADC analog conver...

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Abstract

The invention discloses a three-oil cup insulating oil withstand voltage tester, which comprises a master control singlechip microprocessor CPU, an input unit and an output unit of the master control singlechip microprocessor, a communication unit and a stepping motor of the master control singlechip microprocessor CPU, wherein, the communication unit is connected with the master control singlechip microprocessor CPU; the output end of the stepping motor is connected with the regulating end of an autotransformer; the output end of the autotransformer is connected with a transformer; the output end of the transformer is connected with two or three insulating detection oil cups in parallel; the positive end and the negative end of each oil cup are connected with high-voltage switches; the negative end of each oil cup is provided with a current signal collector; the output end of the current signal collector is connected with the master control singlechip microprocessor CPU; and a direct current high-voltage static trash separator is arranged on the upper end of each oil cup.

Description

technical field [0001] The invention belongs to a withstand voltage detection device, in particular to an insulating oil withstand voltage tester. Background technique [0002] At present, the widely applicable insulating oil withstand voltage tester can only test one insulation testing oil cup at a time when testing, and the work efficiency is low. At the same time, after the positive and negative discharge electrodes in the insulation detection oil are used, impurities will adhere to the electrodes, and the impurities on the electrodes cannot be removed directly at present, which will affect the accuracy of the next detection. The existing insulation testing oil cups are ceramic products with openings, and some test products (such as: insulating oil) have strong adsorption; they can quickly absorb moisture in the air; greatly reducing the actual resistance of insulating oil (insulating oil) pressure value. The positive and negative electrodes of the insulation testing oi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/12
Inventor 王山华
Owner WUHAN HUANENG SUNSHINE ELECTRIC
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