Could anybody help me diagnose this problem?

[Kyle808]

Hi I have a 3phase shop in a high humidity area in (Hawaii) and I'm having some issues with low voltage on the single phase outlets on the 120v side.


Every once in a while the electric goes out on the regular outlets but the three phase works perfectly fine.

Usually at night all the outlets have super low voltage and they only work when I have a large draw such as my ac unit running which also uses 120v.There’s been a few occasions where the electric spikes and burns out my appliances.

It never did trip any of the breakers on the box
And when I use my 120v wire wheel and mig welder sometimes it kicks on and off.

My led shop lights flashes in a even pattern and when I turn my fan on it barely spins unless I have a large draw.

Could the problem be on the transformer?

Any advice would help out a lot, i've had a professional electrician come to check it out and he said he couldn't find what the problem is.

Thanks,-Kyle

 

[James]

Sounds like there may be a problem up the street with a faulty N conductor.

 

[Megawatt]

Hi I have a 3phase shop in a high humidity area in (Hawaii) and I'm having some issues with low voltage on the single phase outlets on the 120v side.


Every once in a while the electric goes out on the regular outlets but the three phase works perfectly fine.

Usually at night all the outlets have super low voltage and they only work when I have a large draw such as my ac unit running which also uses 120v.There’s been a few occasions where the electric spikes and burns out my appliances.

It never did trip any of the breakers on the box
And when I use my 120v wire wheel and mig welder sometimes it kicks on and off.

My led shop lights flashes in a even pattern and when I turn my fan on it barely spins unless I have a large draw.

Could the problem be on the transformer?

Any advice would help out a lot, i've had a professional electrician come to check it out and he said he couldn't find what the problem is.

Thanks,-Kyle

I would also state that it sounds to me like it’s a possibility that it’s a power company issue.

 

[Kyle808]

Sounds like there may be a problem up the street with a faulty N conductor.

Okay i will call the power company and have them check it out, Thanks

 

[Kyle808]

I would also state that it sounds to me like it’s a possibility that it’s a power company issue.

Okay I will call them today and let them know I’m having this problem. I will let you all know what they say. Thanks

 

[Kyle808]

Sounds like there may be a problem up the street with a faulty N conductor.

hey James, I called the power company and they were able to come and check it out. They said that the neutral line on the pole was corroded and they came out to recrimp it. Now everything works perfect. Thanks for the help

 

[Kyle808]

I would also state that it sounds to me like it’s a possibility that it’s a power company issue.

Thanks for the help, you and James were right, it was a corroded neutral line on the power pole.After the power company came to re crimp it, my shop electric works perfect. Glad to know I won’t be burning anymore appliances out. Thanks for the help