freno eléctrico por recuperación
English translation: electric regenerative brake
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| 14:34 May 19, 2002 |
| Spanish to English translations [PRO] Tech/Engineering / railways | |||||||
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|  Selected response from: Nikki Graham United Kingdom Local time: 09:55 | ||||||
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3 mins confidence: 
Creería que simplemente... Explanation: se ha omitido en la primera opción mencionar que es un freno eléctrico. Yo le agregaría a la segunda aparición la palabra "electric(al)" simplemente. Espero que te sea de ayuda. |
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2 hrs confidence:
electrical braking for regeneration/recuperation Explanation: See ref: Suerte ... :o) -------------------------------------------------- Note added at 2002-05-19 16:43:27 (GMT) -------------------------------------------------- \"BY\" .. sorry - not \"FOR\" \"electrical braking by regeration/recuperation / recovery\" Reference: http://www.nationalacademies.org/trb/publications/tcrp/tcrp_... |
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2 hrs confidence: peer agreement (net): +1
peer agreement (net): +1electric regenerative brake Explanation: It also says regenerative brake in Robb's diccionario para ingenieros. Electrical doesn't get any hits. I would translate it as it is. I never like adding or leaving out something unless I think it's absolutely necessary, after all there may be a reason for it which I'm not aware of. HTH |
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2 hrs confidence:
regenerative braking resistance Explanation: or regenerating braking resistance -------------------------------------------------- Note added at 2002-05-19 16:59:09 (GMT) -------------------------------------------------- Direct Current Traction Motor Systems This page describes the development of electric train power equipment which uses resistance controlled Direct Current (DC) motors. This was the most common form of electric train control for almost 100 years until the advent of power electronics. On other pages you will find Electric Traction Drives, Multiple Unit Operation and Electronic Power Traction described. There is also an Electric Traction Glossary. -------------------------------------------------- Note added at 2002-05-19 17:00:34 (GMT) -------------------------------------------------- The DC motor was the mainstay of electric traction drives on both electric and diesel-electric for many years. It consists of two parts, a rotating armature and a fixed field. The fixed field consists of tightly wound coils of wire fitted inside the motor case. The armature is another set of coils wound round a central shaft. It is connected to the field through \"brushes\" which are spring loaded contacts pressing against an extension of the armature called the commutator. The commutator collects all the terminations of the armature coils and distributes them in a circular pattern to allow the correct sequence of current flow. The motor works because, simply put, when a current is passed through the motor circuit, there is a reaction between the current in the field and the current in the armature which causes the armature to turn. The armature and the field are connected in series and the whole motor is referred to as \"series wound\". A series wound DC motor has a low resistance field and armature circuit. Because of this, when voltage is applied to it, the current is high. (Ohms Law: current = voltage/resistance). The advantage of high current is that the magnetic fields inside the motor are strong, producing high torque (turning force), so it is ideal for starting a train. The disadvantage is that the current flowing into the motor has to be limited somehow, otherwise the supply could be overloaded and/or the motor and its cabling could be damaged. At best, the torque would exceed the adhesion and the driving wheels would slip. Traditionally, resistors were used to limit the initial current. -------------------------------------------------- Note added at 2002-05-19 17:02:06 (GMT) -------------------------------------------------- http://www.trainweb.org/railwaytechnical/tract-01.html -------------------------------------------------- Note added at 2002-05-19 18:24:56 (GMT) -------------------------------------------------- THERMAL CHARACTERISTICS OF TRACTION MOTORS WITH REGENERATIVE BRAKING S.L. Ho H.C. Wong* and S.K. Poon* Department of Electrical Engineering, Hong Kong Polytechnic University * Industrial Centre, Hong Kong Polytechnic University Abstract This paper describes a computer program developed to simulate the temperature distribution of a traction motor for a journey between two railway stations in Hong Kong. In particular, the authors have used the software to study the temperature distribution of the traction motor running with regenerative scheme along an entire railway network. Special attention are given to evaluate the temperature rise on the winding surface and at specific points where the insulation were reported to be damaged easily. Overall, the traction motor thermal model developed is useful for traction design engineers and timetablers who are required to check whether there are overheating inside the traction motor for a given duty. www.ctts.nrel.gov/analysis/advisor_doc/regen.htm |
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