Insulation systems with improved resistance to partial discharge, production method for this
US-2015101845-A1 · Apr 16, 2015 · US
Insulating material for rotating machines
US9771464B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9771464-B2 |
| Application number | US-201314390820-A |
| Country | US |
| Kind code | B2 |
| Filing date | Mar 22, 2013 |
| Priority date | Apr 5, 2012 |
| Publication date | Sep 26, 2017 |
| Grant date | Sep 26, 2017 |
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Abstract
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An insulating material and its method of use of insulating material for rotating machines such as motors and generators. The insulating material includes a resin embedded with a filler that is not based only on a monomodal nanoparticle size particle distribution. Radiation erodes the material and is conductive to the formation of in situ protective layers on the body to be insulated.
First claim
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The invention claimed is: 1. A coil winding comprising a winding coated with a cured insulating material of a curable formulation comprising: a resin, and a nanoparticulate filler embedded in the resin, wherein the nanoparticulate filler is present in at least bimodal size distribution according to a distribution curve having a full distribution width at half maximum, as characterized by transmission electron microscopy, of greater than 1.5 d max , wherein the nanoparticulate filler is configured to absorb energy in the form of partial discharges provided by the coil winding to build at least locally sintered parts. 2. The coil winding as claimed in claim 1 , wherein the filler is present with an average diameter of from 1 to 500 nm. 3. The coil winding as claimed in claim 1 , wherein the filler is present in an amount of 1 to 80 wt % of the formulation. 4. The coil winding as claimed in claim 1 , wherein the resin is polymerizable thermally and/or by UV light. 5. The coil winding as claimed in claim 4 , wherein the filler is present on the basis of a metal oxide and/or semimetal oxide. 6. The coil winding of claim 4 , wherein the resin is an epoxy resin.
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Frequently asked questions
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- What does patent US9771464B2 cover?
- An insulating material and its method of use of insulating material for rotating machines such as motors and generators. The insulating material includes a resin embedded with a filler that is not based only on a monomodal nanoparticle size particle distribution. Radiation erodes the material and is conductive to the formation of in situ protective layers on the body to be insulated.
- Who is the assignee on this patent?
- Siemens Ag
- What technology area does this patent fall under?
- Primary CPC classification C08K3/36. Mapped technology areas include Chemistry & Metallurgy.
- When was this patent published?
- Publication date Tue Sep 26 2017 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).