126.2 volts AC

Cloyde

Cloyde

Joined
Jan 30, 2008
Messages
129
The elect company had replace a transformer on the pole to my service, ther are 3 residences on this service now. The change was from a 15 kv? to a 50 KV, and now I have 126.2 volts. I've had a motor burn out and a inverter after the change is made. My neighbors have 124.1 volts. My question is the 126.2 high enough that I would or could start burning out my equiptment or just a string of bad luck lately.
Thank you in advance for the help.
Cloyde
 
You might want to call and have your utility come out. I highly doubt you have 50 kv outside your house. We carry 4kv, 13kv, 27kv, and 35kv Primary and that's big enough to handle NY City! The transformer outside your house may be a (size) 50 but that does not mean 50kv. It should not matter what the primary is. A transformer steps that voltage down to household current. Transformers can be defective and do go bad so you should have it checked.
 
As said, I doubt the primary is 50KV.
The 126.4VAC should be well in the normal operating voltage of all your equipment.
By the time it gets to the house and goes through many additional feet of wire, it will drop some, anyway.
IIRC, electrical equipment is tested to 140VAC to get a UL rating.
Stacy
 
Thank You for the help, that also helps to know they are tested to 140v. I was not sure on the KV just the 15 to the 50. I had called the elect co just to ask the question and they changed the transformer out yesterday but have the same voltage. There the ones that have me freeking out as to what to do.
 
Get a volt meter and make frequent checks of voltage. Both too high and too low can damage equipment. You can also get a recording meter to have a record.
 
Thats normal, any where from 110 to 130 is normal for household voltages. the old 110 and 220 ratings are no longer accurate. 220 can be from 210 to 245 or higher in some cases.
 
Rusty McDonald said:
Thats normal, any where from 110 to 130 is normal for household voltages. the old 110 and 220 ratings are no longer accurate. 220 can be from 210 to 245 or higher in some cases.
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Yepper + or - 10 % per leg is also ok. Same goes with amperage. I have seen 132 volts is some cases and as low as 108 volts.
 
Just went through the switch my self. We paid the electric company for a 25KVA transformer (building an all electric house) and after installing it, they took it away and serviced three lots off a single 50KVA transformer. :grumpy:

I was a little growly about paying for the 25KVA - and I still am, but now, if I melt the thing off the pole, it's their problem to replace it - and there will be others calling the electric company even if I'm not home at the time. :)

By the way, the KVA is for Kilo Volt Amps - which most of us would refer to as Kilowatts.

Rob!
 
Rob! Just went through the switch my self. We paid the electric company for a 25KVA transformer (building an all electric house) and after installing it, they took it away and serviced three lots off a single 50KVA transformer.

I was a little growly about paying for the 25KVA - and I still am, but now, if I melt the thing off the pole, it's their problem to replace it - and there will be others calling the electric company even if I'm not home at the time.

By the way, the KVA is for Kilo Volt Amps - which most of us would refer to as Kilowatts.

Rob!
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Wow,up in Canada,yall have to pay for transformers?
 
Cloyde
Just for grins...

Safely tap into a heavy extension cord and check things out while motors are starting, running and under a load.

Noticing things around you, like light bulbs getting dim suggest your under/serviced/wired (under-amped) and nothing can be over-wired (too heavily wired) things tend to run 'hot' if your over voltage. (124V is not over) Some variable speed eq will run faster on the bottom end 'over' voltage.

It's my $0.02 cents worth that you will notice a slight drop in light bulbs burning out over time, if the transformer really needed replacing? And it was just time for the motor to give-up-da-ghost?
 
You can use a step up/step down transformer. I don't remember if that's the exact term, but it has a large dial on the top of it to set it to what line voltage you want, or it should be, and that's what you'll get. It's a heavy little thing and plugs into the receptacle and your equipment plugs into that and gets whatever voltage it's set for. It can save you from spikes/drops in power, etc.

Can really save variable speed and other delicate electronic equipment, which is susceptible to that sort of variance in power.
 
Mike Hull said:
You can use a step up/step down transformer. I don't remember if that's the exact term, but it has a large dial on the top of it to set it to what line voltage you want, or it should be, and that's what you'll get. It's a heavy little thing and plugs into the receptacle and your equipment plugs into that and gets whatever voltage it's set for. It can save you from spikes/drops in power, etc.

Can really save variable speed and other delicate electronic equipment, which is susceptible to that sort of variance in power.
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"isolation transformer" and they are well worth the money.
 
CrowValleyForge said:
Cloyde
Just for grins...

Safely tap into a heavy extension cord and check things out while motors are starting, running and under a load.
Click to expand...

It is far easier and safer to just test the voltage in the adjacent plug of a duplex outlet. So long as you don't have an excessively long (over 50') extension cord the additional drop to the device is minimal.

Plus or minus 10% of nominal voltage is a common reference value and widely designed to.

If all else is the same, I'd rather have a slight overvoltage than a slight undervoltage. Undervoltage causes motors to overheat and burn out. Most deivces are more tolerant of overvoltage (solid state devices being a notable exception...but your TV and computer are better protected than most motors).
 
Charles L said:
Where do you find these?
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electrical wholesaler or distrubutor should be able to get one, 1:1 is what you want. all it does is put the main power on one side of the unit and the other is for machine or whatever like a big ol' surge protector. very useful for sensitive equipment like compluters.
 
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