Design method of sectional alternating-current inductive adjustable load

A design method and segmented technology, applied in the direction of instruments, measuring devices, measuring electricity, etc., can solve the problems of material and space waste, replacement load limitations, etc., to achieve less energy loss, space and material saving, and large adjustment range Effect

Pending Publication Date: 2022-07-01
HEBEI UNIV OF TECH
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AI Technical Summary

Problems solved by technology

This method is relatively limited for the need to replace the load, and there is a slight waste of materials and space

Method used

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  • Design method of sectional alternating-current inductive adjustable load
  • Design method of sectional alternating-current inductive adjustable load
  • Design method of sectional alternating-current inductive adjustable load

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0121] Design segmented AC inductive load, the technical parameters are as follows: applied voltage U=110-277V; current requirement is I=1-30A, and the error is 2%; power factor requirement is The error is 0.05, and the specific design scheme is as follows.

[0122] (In this example, see step 8, "The first: the reference resistance is 30 ohms, there are 10 gears", which means that d=10, that is, 10 gears, n is actually the number of bits, the result of this example The median w=4 means that there are four reference resistance units and 4 reference inductance units, so n=4, you can refer to figure 1 to understand. )

[0123] The first step is to design the structure of the load. The resistor and the inductor are connected in series. Within the impedance adjustment range, the resistor and the inductor are segmented and selected by the band switch to meet the requirements of current and power factor.

[0124] The second step is to calculate the load range. According to the v...

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Abstract

The invention relates to a design method of a sectional alternating-current inductive adjustable load. According to the method, a resistor and an inductor are connected in series, the resistor and the inductor are segmented within an impedance adjusting range, a bit and gear combination method is adopted, wave band switches are used for selection, and the requirements of current and power factors are met. Due to the fact that the load is divided into different positions and gears, the load can be adjusted in cooperation with the reference resistor and the reference inductor. The method has flexibility and adaptability, and breaks through the limitation of waste of manpower and material resources caused by redesign of the load due to non-adjustable load in the prior art.

Description

technical field [0001] The technical scheme of the present invention relates to the technical field of reliability life test of low-voltage electrical appliances, in particular to a design method of a segmented AC inductive adjustable load. Background technique [0002] The reliability of electrical products refers to the ability of the product to complete the specified function under the specified conditions and within the specified time, and its reliability is an important part of the product quality. Strictly speaking, the quality of a product should include its performance and reliability. Although a product has high performance indicators, if the reliability is not high, it cannot be regarded as a good quality product. The reliability of an automatic control system basically depends on the reliability of the components used in the system, and at the same time, the reliability of the system generally decreases as the number of components used in the system increases. Wi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01R31/00
CPCG01R31/00
Inventor 孙曙光刘金发杜太行王景芹王秋富高辉
Owner HEBEI UNIV OF TECH
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