Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

220kv step-down substation electrical system

A technology of an electrical system and a substation, which is used in the field of substation, can solve problems such as the application of the power distribution system that has not been given, and achieves the effect of small area, ensuring power supply reliability, and efficient operation.

Inactive Publication Date: 2017-04-26
国网山东桓台县供电公司
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In the past, no attention was paid to the development of power distribution system. It is a very urgent responsibility to study the technology of power distribution and improve the reliability of power supply technology and the quality of electric energy.

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
  • 220kv step-down substation electrical system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] In order to make the technical means, creative features, objectives and effects achieved by the present invention easy to understand, the present invention will be further elaborated below.

[0022] The electrical system of the 220kv step-down substation includes two transformers, both of which use 120MVA double-winding three-phase three-group step-down transformers. The transformers form a power supply voltage of 220kv voltage level, and secondary voltages of 110kv and 35kv voltage levels. The 220kv side line supplies power to the substation through two load lines, and there are 4 outlets, 6 outlets for the 110kv busbar on the medium voltage side, and 10 outlets for the 35kv busbar on the low voltage side. The 220kv side busbar and the 110kv side busbar both adopt the double busbar wiring method, and the 35kv side busbar adopts the single busbar segmented wiring method. When the present invention is used in a 220kV substation, for the 220kV side, the substation underta...

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 present invention relates to the substation technology field, especially to an electrical system. The system comprises two transformers which both employ three-phase three-winding step-down transformers of a 120MVA duplex winding mode, the transformers form the power voltage with a 220kv voltage grade and the secondary voltage with 110kv voltage grade and the secondary voltage with the 35kv voltage grade, the 220kv line supplies power to the transformers through two load lines, four outgoing lines are arranged, 6 110kv bus outgoing lines are arranged at the middle voltage side, and 10 35kv bus outgoing lines are arranged at the lower voltage side. The 220kv bus and the 110kv bus both employ double-bus wiring modes, and the 35kv bus employs a single bus section wiring mode. Through adoption of the technical scheme, the 110kv step-down substation electrical primary system realizes the substantial advantages of efficient operation and convenient maintenance on the premise of power distribution reliability, economical efficiency and flexibility.

Description

technical field [0001] The invention relates to the technical field of substations, in particular to an electrical system. Background technique [0002] The importance of electric energy in industry and national economy, the transmission and distribution of electric energy is an indispensable part of the application of electric energy in these fields. Therefore, it is very important to transport heat and distribute electric energy well. The substation enables the power plant or the upper-level power station to transmit the adjusted electric energy to the lower-level load, which is the core part of electric energy transmission. Its functional operation and capacity directly affect the power supply of lower-level loads, and then affect industrial production and domestic electricity consumption. If a link in the substation system fails, the system protection link will act. It may cause accidents such as power outages, which will bring great disadvantages to life. Therefore,...

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
Patent Type & Authority Applications(China)
IPC IPC(8): H02J3/00
Inventor 田进卞振华张志国李金玉王凯刘骐豪李峰刘姝含张英孙丽梅刘思刚张秋艳李奥佳孙玉静张玉峰杨帅耿俊琪牟涛孟智孟凡蕙
Owner 国网山东桓台县供电公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
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