| 单词 | kva |
| 释义 | > as lemmaskVA kVA n. (also kv.-a. etc.) kilovolt-ampere(s). ΘΚΠ the world > matter > physics > electromagnetic radiation > electricity > electric current > [noun] > unit of measurement ampere1881 amp1882 milliampere1885 kilampere1892 mA1896 kVA1905 kilovolt-ampere1909 microamp1923 milliamp1923 abampere1930 1905 S. P. Thompson Dynamo-electr. Machinery (ed. 7) II. iii. 173 An 8-pole, 60 KVA three-phase generator. 1930 Engineering 14 Mar. 355/1 Supplies to the villages will be..through pole transformers with capacities of 50, 20 and 10 kv.-a. 1931 P. Lewis Romance of Water-power 211 The single-phase generators are designed for a continuous output of 6,250 kva. at 225 r.p.m. 1931 P. Lewis Romance of Water-power 216 3-phase generators of 6,000 kva., at 167 r.p.m. capacity. 1959 B.S.I. News June 9/1 The standard applies to power transformers, reactors and earthing transformers having windings insulated with four different classes of insulating material, with single-phase ratings of 1kVA and above or polyphase ratings of 2kVA or above. < as lemmas |
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