![Open Access](https://i-scholar.in/lib/pkp/templates/images/icons/fulltextgreen.png)
![Restricted Access](https://i-scholar.in/lib/pkp/templates/images/icons/fulltextred.png)
![Open Access](https://i-scholar.in/lib/pkp/templates/images/icons/fulltextgreen.png)
![Open Access](https://i-scholar.in/lib/pkp/templates/images/icons/fulltext_open_medium.gif)
![Restricted Access](https://i-scholar.in/lib/pkp/templates/images/icons/fulltextred.png)
![Restricted Access](https://i-scholar.in/lib/pkp/templates/images/icons/fulltext_restricted_medium.gif)
Inter turn and turn to ground voltages due to fast surges in a 6.6 kV industrial motor coil
Subscribe/Renew Journal
Failure of many large industrial motors is caused by voltage surges experienced by turn insulation in the windings. The turn insulations are subjected to high voltage due to fast surges appearing across the line end of the coil. The voltage distribution in motor winding for transient wave of fast surges is non-linear. In order to examine the voltage distribution, the L and C parameters of 6.6 kV industrial motor are calculated and an equivalent circuit is formulated. Electromagnetic Transient Program (EMTP™) is applied to calculate voltage distribution in the winding. Surges of different shapes, 0.1/5 μs, 0.2/2 μs and 0.3/3 μs are applied across the first coil with peak voltage specified in accordance with international standard. The results are compared with the voltage distribution due to standard lightning over voltage.
Keywords
Switching surges, high power industrial motors, EMTP™, fast surge, Motor coil
User
Subscription
Login to verify subscription
Font Size
Information
![](https://i-scholar.in/public/site/images/abstractview.png)
Abstract Views: 223
![](https://i-scholar.in/public/site/images/pdfview.png)
PDF Views: 0