transformadores abaixadores de tensão
English translation: step down transformers...
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| 12:21 May 26, 2011 |
| Portuguese to English translations [PRO] Tech/Engineering - Electronics / Elect Eng / Transformers | |||||||
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|  Selected response from: airmailrpl Brazil Local time: 04:17 | ||||||
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| 5 +5 | step down transformers |
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peer agreement (net): +5
peer agreement (net): +5step down transformers Explanation: transformadores abaixadores de tensão => step down transformers Transformer - Wikipedia, the free encyclopedia As such, the transformers used to step down the high over-head line voltages (e.g. 15 kV) are much heavier for the same power rating than those designed ... Transformer types - Transformers (electrical) - Current transformer - Autotransformer www.en.wikipedia.org/wiki/Transformer -------------------------------------------------- Note added at 8 mins (2011-05-26 12:29:55 GMT) -------------------------------------------------- A Step-down transformer is one whose secondary voltage is less than its primary voltage. The step down transformer is designed to reduce the voltage from the primary winding to the secondary winding. Link: Step-Down Transformer This kind of transformer "step down" the voltage applied to it. They often range in voltage sizes from 0.5 kva to 500 kva. There is many uses for step-down transformer and the larger devices are used in electric power systems, and small units in electronic devices. Industrial and residential power transformers that operate at the line frequency (60 Hz in the U.S.), may be single phase or three-phase, are designed to handle high voltages and currents. Efficient power transmission requires a step-up transformer at the power-generating station to raise voltages, with a corresponding decrease in current. Line power losses are proportional to the square of the current times the resistance of the power line, so that very high voltages and low currents are used for long-distance transmission lines to reduce losses. At the receiving end, step-down transformers reduce the voltage, and increase the current, to the residential or industrial voltage levels, usually 115 to 600 V. http://www.powertransformer.us/stepdowntransformers.htm |
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