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Liquid resistor loading device

A technology of load device and liquid resistance, which is applied in the field of testing load resistance of power supply equipment, can solve the problems of low power, high investment cost, and inability to meet the requirements of electrical performance testing, and achieve the effect of reducing investment cost and improving continuity

Inactive Publication Date: 2013-06-12
DAYU ELECTRIC
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  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there are mainly two forms of analog loads: one is to use analog loads such as solid resistors. Due to the limitation of heat dissipation, the power of such analog loads is generally small, and such load devices generally adopt step-by-step regulation. Therefore, it is not suitable for the electrical performance test requirements of high-voltage and high-power generators or high-voltage and high-power power supply equipment; the other is to use a transformer to convert high voltage to low voltage, and use a low-voltage liquid resistance load at the low-voltage end for testing. This load dissipates heat quickly. , the power can be made very large, but due to the need for additional transformers, the investment cost is relatively high

Method used

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  • Liquid resistor loading device

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Embodiment Construction

[0015] Such as figure 1 As shown, the controller (1) controls the rotation of the dragging motor (7), the dragging motor (7) drives the transmission screw (4) to rotate, and the transmission screw (4) drives the slider (8) to move left and right through thread transmission , the movable electrode plate (3) in the liquid resistance box (6) is moved left and right. The controller (1) judges whether the position of the movable electrode plate (3) is appropriate after comparing the signal of the position sensor (2) with the set value. When the position of the moving electrode plate (3) is biased towards the direction of the fixed electrode plate (5), the controller (1) controls the driving motor (7) to rotate in the forward direction, so that the moving electrode plate (3) moves away from the direction of the fixed electrode plate (5) move; when the position of the moving electrode plate (3) is biased away from the direction of the fixed electrode plate (5), the controller (1) co...

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Abstract

The invention relates to a high-voltage high-power liquid resistor loading device which comprises a liquid resistor box, a moving electrode plate, a fixed electrode plate, a position sensor, a pulling motor, a transmission screw rod, a sliding block and a controller. The device has the main characteristic that the lower ends of the moving electrode plate and the fixed electrode plate are both inserted into a resistance liquid in the liquid resistor box, the fixed electrode plate is fixedly installed, and the moving electrode plate can laterally move. The device adopts a simple transmission mechanism, the distance between the moving electrode plate and the fixed electrode plate is changed under the control of the position sensor and the controller, and the resistance of the liquid resistorcan be conveniently regulated through the change in the distance between the moving electrode plate and the fixed electrode plate; and the requirement on a high-voltage high-power generator or other high-voltage high-power power supply type devices for electrical performance tests can be satisfied. The continuity, the uniformity and the reliability of the high-voltage high-power generator or other high-voltage high-power power supply type devices for electrical performance tests are increased, meanwhile, the investment cost of the resistor loading device is reduced.

Description

Technical field [0001] The invention belongs to the technical field of testing load resistance of power supply equipment, and in particular relates to a high-voltage high-power liquid resistance load device, which is suitable for testing the electrical performance of high-voltage high-power generators or high-voltage high-power power supply equipment. Background technique [0002] As we all know, it is necessary to provide a simulated load when performing electrical performance tests on high-voltage high-power generators or other high-voltage high-power power supply equipment. At present, there are mainly two forms of analog loads: one is to use analog loads such as solid resistors. Due to the limitation of heat dissipation, the power of such analog loads is generally small, and such load devices generally adopt step-by-step regulation. Therefore, it is not suitable for the electrical performance test requirements of high-voltage and high-power generators or high-voltage and...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/34G01R31/40
Inventor 王怡华袁碧波敖君山彭久安
Owner DAYU ELECTRIC
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