АНАЛИЗ ТЕМПЕРАТУРНОГО ПОЛЯ РОТОРА ТУРБОГЕНЕРАТОРА МОЩНОСТЬЮ 300 МВт ПРИ АСИММЕТРИИ ОХЛАЖДЕНИЯ ПАЗОВОЙ ЗОНЫ
By means of a finite-elements method temperature fields on polar division of a rotor of turbogenerator ТГВ-300-2 in a nominal mode are investigated at infringements of symmetry of direct hydrogen cooling in channels of a winding of excitation. It is shown, at what quantity of "defective" c...
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| Date: | 2013 |
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| Main Author: | |
| Format: | Article |
| Language: | Ukrainian |
| Published: |
Інститут електродинаміки НАН України, Київ
2013
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| Subjects: | |
| Online Access: | https://techned.org.ua/index.php/techned/article/view/1196 |
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| Journal Title: | Technical Electrodynamics |
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Technical Electrodynamics| Summary: | By means of a finite-elements method temperature fields on polar division of a rotor of turbogenerator ТГВ-300-2 in a nominal mode are investigated at infringements of symmetry of direct hydrogen cooling in channels of a winding of excitation. It is shown, at what quantity of "defective" channels the maximum temperature of isolation of a winding of a rotor exceeds maximum permissible magnitude. Magnitudes of internal stresses of compression in copper of convolutions on superheated sections of a winding are defined. It is defined, at what temperatures mechanical stresses surpass a copper yield stress. Comparison of values of experimental and settlement thermal and thermomechanical parameters on physical model of the rod of a winding of the stator powerful ТГ is spent. References 16, tables 2, figures 5. |
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