Unlock instant, AI-driven research and patent intelligence for your innovation.

An electric transformer with improved cooling system

A technology for power transformers and cooling circuits, applied in the field of power transformers, can solve problems such as damage to winding insulation components, damage to windings, mechanical loss, etc.

Active Publication Date: 2012-02-08
HITACHI ENERGY SWITZERLAND AG
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In fact, excessive temperatures can damage the windings and especially their insulating elements, thus causing mechanical / electrical losses and adversely affecting the overall performance of the transformer

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
  • An electric transformer with improved cooling system
  • An electric transformer with improved cooling system
  • An electric transformer with improved cooling system

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] It should be noted that in the following detailed description, the same components have the same reference numerals, whether or not these components are shown in different embodiments of the present invention. It should also be noted that in order to clearly and concisely disclose the present invention, the drawings may not necessarily be drawn to scale and certain features of the invention may be shown in somewhat schematic form.

[0017] figure 1 There is shown an exemplary embodiment of a power transformer denoted by reference numeral 100 comprising a tank 101 containing an insulating fluid such as mineral oil or vegetable oil and for cooling purposes some of the electromagnetic components of the transformer (i.e. The assembly consisting of the magnetic core and the phase winding) is immersed in the insulating fluid. A plurality of radiator elements 102 are provided on one or more sides of the tank 101 . The heat sink element 102 , which can be shaped in various di...

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

An electric transformer comprising: a magnetic core; at least one coil assembly which is positioned around a portion of the magnetic core and comprises a plurality of windings; a structure adapted for applying a clamping force on the magnetic core and / or the windings; and a cooling circuit adapted for conveying cooling fluid directly inside the coil assembly.

Description

technical field [0001] The present invention relates to a power transformer with an improved cooling system. It is known in the art to use electric induction devices, such as reactors or transformers, which utilize electromagnetic induction to properly transmit and distribute electric power on electric power lines. Background technique [0002] In particular, the basic task of a power transformer is to allow the exchange of electrical energy between two or more power systems, usually of different voltages. [0003] The most common power transformers generally comprise a magnetic core consisting of one or more legs or limbs connected by a yoke, wherein the cores together form one or more core windows. For each phase, around the core is arranged a coil comprising a number of windings, usually denoted as low voltage and high voltage windings, or primary and secondary windings. There may also be a control winding or a regulating winding. [0004] Phase winding is achieved by ...

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): H01F27/28H01F27/10H01F27/12H01F27/30
CPCH01F27/12H01F27/2876H01F27/306
Inventor 马西莫·博宁米连科·赫尔卡克
Owner HITACHI ENERGY SWITZERLAND AG