Frequency changers installed for Reading Railroad are unique as they are installed in open and had to be erected in very short time without usual crane facilities; heaviest piece weighs 112 tons; total crane capacity available was 80 tons.
Erecting two 21,000-kva. frequency changers
Elec. Jl
Electric Journal ; 28 , n 9
1931
5 Figs.
Article (Journal)
English
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Engineering Index Backfile | 1934
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