Intelligent AC-DC withstand voltage test apparatus

Abstract

Main control circuit is connected to a serial interface circuit linked to a computer, which is connected to a printer. The main control circuit is also connected to a key-press circuit, display circuit, power supply for supplying the signal and control circuit and the motor control circuit. The motor control circuit is connected to dual electrical motor auto compensation voltage regulating circuit, which is connected to a supply circuit of main power source and AC / DC booster transformer linked to a voltage divider, which is connected to articles to be tested. A data processing circuit through optical fiber is connected to the data receive circuit connected to the main control circuit. The device can fulfill following testing: AC withstand voltage, large capacity DC withstand voltage, solid insulating material, line frequency electrical strength test and breakdown test. The invented device possesses features of good safety and high efficiency.

Description

1. Technical field [0001] The invention relates to an automatic power frequency electric strength test for solid insulating materials and an automatic AC and DC withstand voltage test device for high-voltage electrical equipment. 2. Background technology [0002] For a long time, the withstand voltage test of the insulation performance of high-voltage AC equipment and materials at home and abroad has been manually adjusted by autotransformer (voltage regulator) or manual electric voltage adjustment. When testing the boost of the test transformer, if the accuracy requirements When it is low, the test variable adds a measuring winding to detect the output high voltage. If the accuracy is high, generally an external electrostatic voltmeter or voltage divider is used to detect the output high voltage, and an external ammeter is used to monitor the meter by the operator, and the adjustment of the test high voltage is manually controlled. In case of a high-capacity high-voltage DC...

AI Technical Summary

Problems solved by technology

[0023] III. The test cannot be digitized and automated, the observation is not intuitive, the data cannot be printed directly, and the test efficiency is low

[0024] IV. In order to ensure better test accuracy, a series of devices with different specifications must be configured to complete the test task, which will inevitably bring inconvenience and complexity to management and operation, and increase unnecessary costs and other defects

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