1 MW (~1350 hp) locomotive DC electric motor spinning up at full power.
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Published 2018-02-18
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All Comments (21)
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1:08 Notice the 'field weakening' at higher speeds. At higher speeds the back emf becomes sufficiently high to impede flow of current into the rotor winding, thus reducing available power. So field current is reduced to keep current flowing into the rotor.
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that motor has to have some serious bearings
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that's a smooth track.
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I am a certified train mechanic and I test drive these beasts, trains are brutal tbh. Faster acceleration than any passenger would experience and harder deceleration than anyone could imagine!
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I never realized how much power went into these things. I mean, 1350 hp seemed reasonable for a motor that size, but I never converted that to wattage in my head as a comparison. At full chooch, that would be the equivalent power of around 1000 homes! And that's just one of six?!
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Fun fact: locomotive is standing in place, it's the earth that's spinning below it.
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I still don't know how you could fit 1350 horses on one car
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This just made me truly appreciate how much trust is put on people who design the whole railroad system ...
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Just love the sound of those big electric motors starting up.
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Summuary: Electricity is everthing for us!
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Skookum as frig. I originally figured this was some kind of test setup and wondering what that was in the background until I realized it was the ground and that it's on an actual locomotive, that's a pretty cool shot.
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I've underestimated how hard these motors work until seeing as well as hearing them, I knew they were powerful but I didn't realise they were this powerful, it's cool to see the contactors and switchgear working too
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That is an awesome video. Great camera set up. Love the sound.
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I appriciate the difficulty in making video's like this. Thank you for this excellent example. 1.4kA at all the way up to 60km/h!! No wonder that thing was accelerating like a bunch of kids to the pizza at a birthday party.
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What a great shot of the traction motor and electric installation;) great film!
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Ohms Law tells me the voltage is 600 Volts DC for those who wondered.
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Even after watching the video I cannot think of anything more or less I want to see - PERFECT video!
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Must appreciate the camera man for bringing us such footage.
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ive seen videos of mechanical field weakening and heard of it being done electrically, but never actually seen how it was done. i learned quite a bit!
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That's some serious acceleration even while hauling light weight. Great video! Have liked and subscribed. Cheers from India.
