Detection device based on electric leakage trace appearance proof characteristic and electrical erosion proof property of electrical resistant material

Abstract

The present invention is detection equipment based on electric leakage imprinting resistance and electric corrosion wear resistance of electric insulating material, and is suitable for the electric leakage imprinting resistance test of electric insulating material. The detection equipment includes test transformer inside a casing, stepped motor on the fixing rack, driving gear on the shaft of the stepped motor and meshed driven gear, lead screw mounted to the driven gear and connected liquid pushing board and liquid pushing unit, limiting resistor, and tested sampler holder in the position corresponding to the liquid pushing unit. The limiting resistor is connected to the test transformer and the upper electrode on the tested sample holder, and the lower electrode of the tested sampler holder is grounded. During operation, the motor rotates the driving gear and the driven gear and pushes the liquid pushing board to move downwards for dropping the corrosive liquid to the tested sample.

Description

1. Technical field [0001] The invention belongs to a device for measuring electrical properties of insulating materials, in particular to a device based on the tracking resistance and electrical corrosion resistance of electrical insulating materials. 2. Background technology [0002] At present, the flow control of liquid mostly adopts micropump, and this micropump is mainly used for the injection of medical liquid. It is composed of plug cleaning, base point monitor, shielding part, bearing, rotor, coil, and screw. Its action principle: when the stepping motor coil rotates clockwise, the internal rotor and screw start to move to the left, and the plunger and screw are directly connected. , the liquid in the pump head is spit out from the outlet. There are two types of outlets: 1 and 2. When the plunger reaches the discharge completion position, a control signal is output from the base point monitor and the shielding unit. When the liquid is inhaled, when the coil of the...

AI Technical Summary

Problems solved by technology

However, it has the following disadvantages: it requires a liquid storage device; it needs multiple inhalations and extrusions during the dripping process; there is uncertainty in the interval between each stroke, and it cannot guarantee the uniform dripping of the liquid; it requires more Auxiliary equipment, such as base point monitors, etc.

It cannot meet the requirements of the national standard GB6553-86 "Experimental method for evaluating the tracking resistance and electrical corrosion resistance of electrical insulating materials used under severe environmental conditions"

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