Duncan Electric Motor Ltd. Advertisement DC Machine

[TheElectricnoob]

Anyone know what the name of the song is ?

[Yumanoid44]

By converting a banded GE CDS com to a solid riser v-ring com, you realize you effected the cooling capability of the armature? There's a reason for those open risers.

Nice repair never the less.

[lakesuperiorfish]

@Yumanoid44

By leaving a space on edge of riser from band,,,lots of cooling....We have been doing the same for years .never been a problem.

[kwxj61b]

I have 2 questions. The commutator part where there is a steel ring to release the commutator copper, what kind of tool do you use to remove that ring. Also, if that ring is glued by epoxy(i think), how do take off that glue first before you take the ring off.

[glenwoofit]

I bet that repair wasn't cheap to do. You've done a great job on it....

[lakesuperiorfish]

I know this is the workmanship of a great team not just one. good work guys.

[yun342]

Amazing bit of work. I love the bit at the end when the DC spins up

[sasho54]

That is a symphony of electrical mastery!

[Aussie50]

Magnificent work!!, many would have scrapped the motor at the condition it was in when it came to you!

[circletree]

can you say "runaway"? looks like they lost the field....

[RODALCO2007]

Marvellous job, that motor restauration.

Thanks for posting.

[douro20]

Was this motor for a lift?

[stvoodoo]

The DC motor operates on a Paper Machine.

[switchkwb]

I've spent about 20 years working on large AC units and DC tractions and shunts etc (yes winding them) and I must say that your workmanship looks great and it is nice that you have taken the time to display it on Youtube too. Very nice TIG welding on the Riser faces and I couldn't even here any high comm segments chattering under the brushes either! Be proud of your work...

[risjnet]

Woow.... good job!! that motor its like a new... great work!

[conoba]

I worked at a company that still used DC motors for all it's controlled drives. I had to check them all for wear with a gauge,clean them and put all the finding in a log. All to ensure production didn't stop due to some motor failing.

They got phased out for asynchronous engines with frequency converters. After that the complex electronics was causing more problems than the old DC drives. That was 12 years ago. These days the asynchronous systems are probably far more mature.

[yun342]

Thanks for posting. I have a real intrest in electric motors

[SlyFox20061985]

That's an impressing motor! Wow. I like how it slowly runs up to speed. What technical data may it have (power rating etc.)? First it looked like an AC machine to me... but I'm not an expert.

[stvoodoo]

Thank you for your interest in this Video. The Technical data of this motor:

200hp at 1150rpm, 500VDC. If your looking for the KW rating the output KW rating is 149200 Watts. Hope that helped

[SlyFox20061985]

Yes, thank you. Would also like to know if you soft started it slowly or not, and whether the end rpm in the video was full power or less than full power.

[stvoodoo]

With this DC machine there is two different power sources required. In order to "Soft" start, full voltage goes towards the shunt fields (ranges from 210VDC to 230VDC). Voltage is slowly rased in the Armature winding to get the "Soft" start effect. All DC machines in our shop are tested to there full capacity. Hope this helped. And once again thank you for taking an interest in my video.

[stvoodoo]

Also one other thing, when we test the DC machines we run them for a minimum of two hours at full voltage.

[diymania]

I just love the sound of it spinning up for the first time after repair :)

Excellent job guys! I´d had given up and shipped it to cpper recycling.

[mendozi0]

nice, hey whats that song called does any one know!!!

[stvoodoo]

The song is from a very screwed up movie called 'Requiem for a Dream' :)

[SixtyShot]

Good Job!

[guimbadriver]

man good job the motor is new, good very good, hey where i find the data about this motor?

[stvoodoo]

What would you like to know?

[Gobdobber]

wow you guys do some amazing work none of your competitors even come close.

[Dishfarm]

This video could make someone cry.