Where is 416V used? 1

[jasper4x]

We are designning a replacement hydralic pump package for a customer and they are asking for a motor that will operate at 416v/60hz and 460v/60hz.

Where is 416 used and is it a standard voltage? Or are they planning for 460v with brown outs?

 

[itsmoked]

Have at it:

http://kropla.com/electric2.htm

Keith Cress
kcress -

http://www.flaminsystems.com

 

[waross]

I recently ran into a situation which may have a bearing on this.
I did a walk through of the little utility that I consult for. Since my last inspection, A sewage treatment plant and pumping stations had been installed.
The transformer banks were connected wye-delta.We do not allow wye-delta connections on the system.
I presented the following options to the designers.
1> reconnect the 240:480 Volt transformers for 240:416 Volts and give assurances that the pump motors will operate safely on 416 Volts.
2> Supply and install 277 Volt transformers for 277:480 Volts.
3> Supply and install autotransformers or an isolation transformer to boost 416 Volts up to 480 Volts.
In the months that the wye:delta banks were in service before I got there they caused two transformer burnouts, probably a motor burnout and numerous primary fuse failures.

Bill
--------------------
"Why not the best?"
Jimmy Carter

 

[zeusfaber]

I'd normally call it 415V, and expect to see it in the UK (though at 50 rather than 60 Hz) - It's the 3 phase equivalent of a "nominally 230, but in reality still 240V V supply.

Using Keith's link, I guess your answer might be "Guyana"

A

 

[jraef]

Better list of industrial power.



"If I had eight hours to chop down a tree, I'd spend six sharpening my axe." -- Abraham Lincoln
For the best use of Eng-Tips, please click here -> faq731-376

 

[ozmosis]

Possibly South Korea or the Philippines. Both are on 60Hz and will use voltages around this.

 

[jasper4x]

I was talking to a motor supplier and he said parts of Toronto have old legacy systems in use at the 416/60hz Levels. We have an old copiy of a NEC table stating the allowable voltage ranges for each voltage type and 416 is at the extreme low end of 480(460). Motor maunfactures are required to have a have the motor functiona this low level of 460. Yes performance is down but they mark the data plate to that effect. As for other parts of the world... I looked at he chart but I can't say for certain given our own confusing history.

 

[racookpe1978]

I'm at a Spanish power plant now during an outage: The aux. panels here (nominal 380 - 420 volts, 50 Hz) show actual delivered voltages of 390, 392, 395, 397, and 405 volts.

I'd challenge the requirement because it sounds like he wants a motor for a 50 Hz, 380-420 volt European system, not a 60 Hz 416 system.

About half of the motors in the turbine building are dual-rated for 380-420 volt 50 Hz, and 440-480 volt 60 Hz, the rest (particularly the very large ones) are 50 Hz.

 

[rbulsara]

Why not ask the customer?

Rafiq Bulsara

http://www.srengineersct.com

 

[roydm]

Jasper4x,
About 10 years ago I was involved in a project to upgrade some motors from 25 Hz, supplied by a power station at Niagra Falls that Ontario Hydro were trying to phase out.
I wonder if it was the one Tesla designed?
Roy

 

[rmw]

Do some advanced searching on this site. There was quite the discussion in more than one thread as I remember it of 25 Hz power after Hurricane Katrina because some of that old stuff had made its way from Niagara to New Orleans.

I was a service engineer for a major turbine mfg in the New Orleans area quite a few years (decades) ago and while I never did get dispatched to a 25 Hz station, (Sewage and Water Board Stations) several of my co-workers did, probably since they had the experience at those stations and I didn't.

They had their own 25 Hz power plants to generate the power for the pumping station motors many of which were flooded after the storm, pumping stations and power plants as I remember it.

rmw

 

[rmw]

And, a buddy of mine is a motor salesperson and she just finished working a large project for Australia that required 415V motors.

rmw

 

[ozmosis]

415V is standard here in Australia but not 60Hz. We're on 50Hz.

 

[purplepete]

For interest only,
Broken Hill in Australia has (had?) a very large mining facility running on 40 Hz from Diesel generators and many dollars in fuel. ABB did a solid-state converter to turn our 50 Hz supply into 40 Hz for them, enabling the diesels to be put on standby or whatever.
Peter.

 

[1000V]

Sounds like they're running 415 system and somebody has measured the supply @ 416. The power station that I work at use 415 but out supply measures at 430Vish. My previous place of work measure at around 420V.

 

[waross]

Look for a dual voltage motor rated for 460:230/208V. If the motor is suitable for 208V on the 230V connection it will also be suitable for 416V operation on the 460V connection.

Bill
--------------------
"Why not the best?"
Jimmy Carter