Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Three-winding transformer design method suitable for 35kV distribution construction

A double-winding transformer and design method technology, applied in the direction of inductance/transformer/magnet manufacturing, circuits, electrical components, etc., can solve the problems of unfavorable substation economic operation, affecting the safe operation of substation, and not having voltage regulation function, so as to improve practicality Sex and economy, improve the quality of power supply, and improve the effect of power supply voltage quality

Active Publication Date: 2013-09-18
STATE GRID CORP OF CHINA +2
View PDF2 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the obvious seasonality and timeliness of residential electricity load and station load in remote areas, while the station transformer has a large loss and does not have a voltage regulation function, which is not conducive to the economic operation of the substation
The substation power supply system includes the primary system and the secondary system protection equipment is relatively complex, has high requirements for reliability, and is easy to be ignored, directly affecting the safe operation of the substation

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 more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Three-winding transformer design method suitable for 35kV distribution construction
  • Three-winding transformer design method suitable for 35kV distribution construction
  • Three-winding transformer design method suitable for 35kV distribution construction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0044] A three-winding transformer design method suitable for 35kV power distribution construction, including the following steps:

[0045] (1). Determine the 0.4kV side capacity according to the layout plan of the 35kV distribution substation;

[0046] (2). Set the capacity of the transformer and carry out the body design of the three-winding transformer;

[0047] (3). Material selection for three-winding transformers;

[0048] (4). Calculate the operating loss of the three-winding transformer;

[0049] (5). Economical analysis of distribution stations.

[0050]In the step 1, the layout scheme of the 35kV substation is analyzed, the load of the substation is calculated, and the appropriate capacity is selected according to the load demand of the 0.4kV side of the substation in combination with the load density and load distance around the substation.

[0051] In the step 2, the transformer adopts a 35kV box-type substation with a capacity of 1600kVA; the maximum load on th...

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

No PUM Login to View More

Abstract

The invention provides a three-winding transformer design method suitable for 35kV distribution construction. The method comprises the steps: (1) according to the layout scheme of a 35kV distribution transformer substation, determining 0.4kV side capacity; (2) setting the capacity of a transformer, and designing the body of the three-winding transformer; (3) carrying out material selection for the three-winding transformer; (4) calculating the operation loss of the three-winding transformer; (5) carrying out economic analysis on the power distribution station. The three-winding transformer design method suitable for 35kV distribution construction, provided by the invention, aims at the current distribution construction of 35kV transformer substations in remote and border areas, a main transformer of each 35kV transformer substation mainly adopts a 35 / 10 / 0.4kV three-winding transformer, the 0.4kV side is configured with proper capacity to be used as a power supply for loads of the substation and surrounding loads of the transformer substation, the economical efficiency is analyzed in the two aspects of cost saving and loss reduction, meanwhile, an on-load tap changer is equipped after selectivity is considered, and the economical operation of the transformer is realized.

Description

technical field [0001] The invention belongs to the field of power distribution, and in particular relates to a design method for a three-winding transformer suitable for 35kV power distribution construction. Background technique [0002] Due to the large coverage of rural areas in my country, especially the remote rural areas in the central and western regions, mountainous areas or mid-mountainous areas, the land is sparsely populated, the load is small and scattered, and the distribution of 35kV power supply is insufficient, which seriously affects the normal production and life of rural residents. The construction of 35kV power distribution combined with the actual situation in remote areas, adopts differentiated design, which effectively alleviates the problems of rural power grid funding shortage, difficulty in adding points, and long construction period, optimizes the rural grid network structure and power supply mode, and improves the quality of power supply voltage. ...

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
no application Login to View More
IPC IPC(8): H01F41/00
Inventor 寇凌峰王金丽盛万兴王金宇宋祺鹏杨红磊王利方恒福李宁
Owner STATE GRID CORP OF CHINA
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com