A Design Method of Main Parameters of Differential Zero-sequence Current Transformer
A zero-sequence current and parameter design technology, applied in design optimization/simulation, special data processing applications, etc., to ensure accuracy, realize turns ratio design, and shorten calculation time.
Active Publication Date: 2022-04-08
ZHEJIANG HORIZON INSTR TRANSFORMERS
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0004] The present invention provides a method for designing the main parameters of a differential zero-sequence current transformer, aiming to solve the problems mentioned in the above-mentioned background technology
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0032] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0033] see Figure 1-6 , the present invention provides a technical solution: a method for designing the main parameters of a differential zero-sequence current transformer, including the step of designing the turn ratio and the step of designing the iron core in sequence;
[0034] Described turn ratio design step comprises the following steps:
[0035] S1. Calculate according to the transformation ratio requirements of the differential zero-sequence current ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention belongs to the technical field of zero-sequence current transformers, and in particular relates to a method for designing the main parameters of a differential zero-sequence current transformer, which includes sequentially performing a turn ratio design step and an iron core design step; the turn ratio design step includes the following steps: S1. Calculate according to the transformation ratio requirements of the differential zero-sequence current transformer and the transformation ratio model of the differential zero-sequence current transformer, and obtain the turn ratio relationship and the number of turns relationship of each winding; S2. Select each winding according to the error relationship Number of turns; S3, carry out demand check calculation to the selected turns ratio, until the selected turns ratio meets the requirements; the present invention shortens the calculation time, simplifies the design steps, and realizes the The turn ratio design of the differential zero-sequence current transformer under various demand conditions improves the load capacity and accuracy of the differential zero-sequence current transformer.
Description
technical field [0001] The invention belongs to the technical field of zero-sequence current transformers, and in particular relates to a method for designing the main parameters of a differential zero-sequence current transformer. Background technique [0002] The power system is composed of power plants, power transmission and transformation lines, transmission lines, power supply and distribution stations, and electricity consumption, etc. to form a system that is closely related to people's lives. Compared with the high voltage transmission network, the probability of failure in the medium and low voltage distribution network is much higher. As the demand for neutral point grounding measurement and zero-sequence protection measurement increases, the application requirements for zero-sequence current measurement are increasing. Conventional zero-sequence current transformers have problems such as low measurement accuracy, large phase-to-phase span, and few applicable sce...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G06F30/23
CPCG06F30/23
Inventor 刘斌吴维宁候凯武迪吴克辰
Owner ZHEJIANG HORIZON INSTR TRANSFORMERS