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

Cooling arrangement for a high voltage power device

A technology of high-voltage power equipment and cooling devices, which is applied in the direction of transformer/inductor cooling, transformer/inductor parts, heat storage equipment, etc., can solve the problems that the aging of insulating materials affects the expected life of high-voltage power equipment, and achieve flexible cooling, Effect of increasing thermal inertia

Active Publication Date: 2021-02-12
HITACHI ENERGY SWITZERLAND AG
View PDF13 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This influences the life expectancy of high-voltage electrical equipment, for example through the aging of insulation materials

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
  • Cooling arrangement for a high voltage power device
  • Cooling arrangement for a high voltage power device
  • Cooling arrangement for a high voltage power device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0039] The present invention relates to high-voltage electrical equipment, such as power transformers such as transformers, power switches, power converters, reactors or electric motors, cooled by using an insulating fluid such as transformer oil.

[0040] The invention relates more particularly to a cooling arrangement for such high-voltage electrical equipment, comprising a cooling device. In some variants, it also includes a control device controlling the valve of this cooling device. The invention also relates to a high-voltage electrical installation comprising a high-voltage electrical device, an enclosure for accommodating the high-voltage electrical device and such a cooling device.

[0041] In FIG. 1, a side view of an exemplary first enclosure for housing such a voltage electrical device is shown. For example, the high-voltage power equipment is a transformer, so the first enclosure is the transformer box 10 . The transformer tank 10 has at least one wall 12 , a co...

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 is concerned with a cooling arrangement for a high voltage power device (24) in an enclosure (10) and immersed in an insulating fluid (44). The arrangement comprises a cooling device forplacing in the interior of the enclosure and having a channel (32) formed as a duct for the insulating fluid the duct having a first wall comprising a phase change material (34) for cooling insulating fluid (44) that passes through the channel. The invention is also concerned with a method of operating a valve of a cooling device in such a cooling arrangement.

Description

technical field [0001] The present invention generally relates to high voltage electrical equipment. More specifically, the invention relates to a cooling device for such a high-voltage electrical device and a method of operating a valve of the cooling device in such a cooling device and a high-voltage electrical device comprising such a cooling device. Background technique [0002] Heat losses occurring during operation of high voltage electrical equipment in enclosures such as oil-immersed power transformers in transformer tanks lead to increased temperature levels. This influences the life expectancy of high-voltage electrical installations, for example through the aging of the insulating material. The temperature level at any given time depends on many variable parameters, including applied loads, ambient temperature and recent loading history. Aging is exponential with temperature levels, so it is preferable to avoid high temperatures even for short periods of time. ...

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): F28D20/02H01F27/08
CPCF28D20/02H01F27/08Y02E60/14H01F27/10H01F27/402H01F30/16
Inventor T·兰里德G·卡里米-莫加达姆
Owner HITACHI ENERGY SWITZERLAND AG
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