iудmax= 2 ⋅ 14, 05 ⋅ 1, 45 = 28,81.
Ударный ток в минимальном режиме, кА,[6, с.139]
i уд min =
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| ⋅ I(п30)min ⋅ K уд min ,
| (30)
| 2
| где Kудmin=1.2 определяем по кривым
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| 30
| БР.44.03.04.638.2017
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iудmin= 2 ⋅ 12, 00 ⋅ 1, 2 = 18, 66 .
Апериодическая составляющая тока КЗ в максимальном и минималь-ном режимах, кА, iа0 max = 2 ⋅ I(п30)max ,
iа0 min = 2 ⋅ I(п30)min ,
iа0 max
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| Расчёт токов двухфазного к.з.: [6, с.137-140]
| I ПО(2)
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| Расчёт токов однофазного к.з.:[6, с.142].
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| где r0∑=3,66
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| , IПО(1)
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Расчет для остальных точек КЗ аналогичен расчетам по первой точке приложение Г [21, с.19-27]. 31 БР.44.03.04.638.2017
|