Motor hz requirements

[crtemp]

I just had a homeowner text me about wiring his car lift. It says it must be hooked up to 220 volt 60hz. It says it will not run on 50hz without a physical change to the motor. Does normal house power run at 60hz?

 

[GoldDigger]

It does in the US. It does not in a good number of other countries around the world.

 

[crtemp]

It does in the US. It does not in a good number of other countries around the world.

Okay thanks. I'll let him know to just get the correct amperage to it then and not worry about the Hz.

 

[Besoeker]

It does in the US. It does not in a good number of other countries around the world.

I'm sometimes surprised that this is not more widely known.

 

[petersonra]

I'm sometimes surprised that this is not more widely known.

I am more surprised that someone can become a journeyman electrician and electrical contractor and not know this.

 

[fmtjfw]

I am more surprised that someone can become a journeyman electrician and electrical contractor and not know this.

I've given up being surprised by almost anything.

 

[crtemp]

I am more surprised that someone can become a journeyman electrician and electrical contractor and not know this.

sorry for not being as smart as you.
I'll work on it.

 

[ActionDave]

It does in the US. It does not in a good number of other countries around the world.

All if not most all of North and South America, yes?

Not in Europe, they are too hung up on everything being base ten.

 

[GoldDigger]

Not in Europe, they are too hung up on everything being base ten.

Actually it is because they only have five digits on each hand.

 

[kwired]

I am more surprised that someone can become a journeyman electrician and electrical contractor and not know this.

Some people reach these levels and never get too involved with theory or just how things work, they just know how to install things, though a contractor probably has a little better chance of knowing at least a little about this. Also those that only seem to work in limited areas say primarily residential work wouldn't ordinarily get as much exposure to equipment that is designed for 50Hz, 50/60Hz designed equipment is common but they never really have to think about any of the theory behind it.

 

[fmtjfw]

Power line frequency is somewhat interesting. Values were often based on the materials available at the time and the load (lighting, rotary converters, induction motors, or railways).

Here is a history (from 8 to 400Hz): http://en.wikipedia.org/wiki/Utility_frequency

AMTRAK has 25Hz:http://en.wikipedia.org/wiki/Amtrak%27s_25_Hz_traction_power_system

 

[Besoeker]

sorry for not being as smart as you.

It isn't about being smart. It's about being informed.

 

[Besoeker]

All if not most all of North and South America, yes?

Not in Europe, they are too hung up on everything being base ten.

Both 50 and 60 are base ten numbers....

 

[GoldDigger]

Both 50 and 60 are base ten numbers....

And so are 17, 19, and 47.
But in the decimal system 60 and 50 are both "round" numbers, with 50 being the rounder of the two.
100Hz was just not good for large transmission and distribution networks.

 

[Besoeker]

And so are 17, 19, and 47.
But in the decimal system 60 and 50 are both "round" numbers, with 50 being the rounder of the two.
100Hz was just not good for large transmission and distribution networks.

But 0Hz is..........

 

[qcroanoke]

But 0Hz is..........

DC?

 

[zbang]

DC?

HVDC