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I have a question on my service electricity and a electric
I have a question on my service electricity and a electric motor that I need to run. … read more
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having a hard time finding a step up transformer 220v 3ph to 480v 3ph 112kva. what do I look for to be able to reverse the ones i find that are the 480v 3ph to 220v 3ph 112kva transformer?? … read more
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I'm trying to figure out the most cost effective way of
I'm trying to figure out the most cost effective way of wiring up a new piece of equipment we are thinking about getting. The equipment takes either 3wire 60amp 3ph 220 or 30amp 440, and all legs to g… read more
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I am a novice (at best) at industrial power (my factory has
I am a novice (at best) at industrial power (my factory has a few questions), we of course will hire the needed people when we finally launch our product..... but until then it's me. We are bring a ne… read more
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Can I use the the single leg 208 and neutral for a 220 circuit
Can I use the the single leg 208 and neutral for a 220 circuit of a 3 phase 120/208 3/60 box?… read more
AssuredElectrical
AssuredElectrical
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High School or GED
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This question is for Jason only. I can wait and am not in a
This question is for Jason only. I can wait and am not in a rush. Hey Jason hope all is well. Have some electrical questions for you. I'm looking at getting a building which has 400 amp service. Is th… read more
Jason
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I am having 277/480 3 phase wye installed from 208/120 3 phase
I am having 277/480 3 phase wye installed from 208/120 3 phase wye. I have used step up transformer to furnish service to our machines. The transformers are 480 Delta to 208/120 y which we used the se… read more
Steve G.
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i have a transformer question I have never done before.Pics
i have a transformer question I have never done before.Pics of all are availb. Feed a 300 kva trans with 208 3phase 800 amps. secondary 400 volt 400 amp with a 120 volt high leg. The trans they sent i… read more
Mike G.
Mike G.
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Our electrical contractor just finished a job at our company
Our electrical contractor just finished a job at our company for a 480V/ 400a 3p new service. To our surprise the new utility installation consisted of a grounded corner delta service as per our contr… read more
Mike G.
Mike G.
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I am preparing to purchase equipment to power a warehouse.
I am preparing to purchase equipment to power a warehouse. I have a utility supplied outdoor tansformer 13,200 volt 480 Y /277 3ph that goes to an outdoor distribution box and outdoor wall mounted rac… read more
Joseph
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Incoming power is 208Y three phase. Power will fluctuate down
Incoming power is 208Y three phase. Power will fluctuate down to 190's (we're in Haiti, unreliable power grid). I have a fish farm I am wiring. Have paddle wheels to churn water, they are either 230Y … read more
Phil
Phil
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Can a dry type 3 phase 480V primary 240/120V secondary 300
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AssuredElectrical
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i have 5 bucks to spend on this answer. on an eaton 480v pri
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Mike G.
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Hello, I am the owner of an offset printing company. I have
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I am installing a 45kva transformer. Primary is 480 3PH ,
I am installing a 45kva transformer. Primary is 480 3PH , Secondary is 208/120. I will bond at the transformer case, core, and windings. The 125A panel that it will feed will have 3 phases of secondar… read more
electrifier
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i have 480 3 phase. Need 240 single phase for a compressor.
i have 480 3 phase. Need 240 single phase for a compressor. i have a step down transformer to 240 3 phase. can i use 2 legs for the compressor motor that is single phase?… read more
Mike G.
Mike G.
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A 480v three phase ungrounded system with transformers down
A 480v three phase ungrounded system with transformers down to 120 single phase has no grounding conductor in 120 single phase distribution why?… read more
Joseph
Joseph
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In one side (primary side) I have 3 single phase transformers
In one side (primary side) I have 3 single phase transformers with 4 leads each one. The leads are marked H1,H2,H3,H4. In the other side (secondary side) I have 3 single phase transformer with 4 leads… read more
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Meet the Experts:

Mike

Mike

Master Electrician

1,426 satisfied customers

Licensed Master Electrician - OnQ Certified Data Voice Audio Video Installer

Jason

Jason

Service Technician

4,220 satisfied customers

Over 20 years of experience in all types of installations, troubleshooting, and repairs.

Mike G.

Mike G.

Master Electrician

9,482 satisfied customers

Proven Professional 49 years Experience

Kevin

Kevin

Licensed Electrical Contractor

5,358 satisfied customers

32 years Licensed Electrical Contractor in Illinois, Adjunct College Electrical Instructor, Former Electrical Inspector, Diploma: Digital Electronics, FCC Amateur & Commercial Radio Licenses

AssuredElectrical

AssuredElectrical

Master Electrician

3,264 satisfied customers

Contractor-42+ Years in the ElectricalTrade

electrifier

electrifier

Master Electrician

1,458 satisfied customers

Electrical contractor and electrical inspector for over 24 years with phone and networking expertise

Rich

Rich

Master Electrician

1,117 satisfied customers

Over 35 years residential, commercial, industrial wiring, install, troubleshoot, service, maintain

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Disclaimer: Information in questions, answers, and other posts on this site ("Posts") comes from individual users, not JustAnswer; JustAnswer is not responsible for Posts. Posts are for general information, are not intended to substitute for informed professional advice (medical, legal, veterinary, financial, etc.), or to establish a professional-client relationship. The site and services are provided "as is" with no warranty or representations by JustAnswer regarding the qualifications of Experts. To see what credentials have been verified by a third-party service, please click on the "Verified" symbol in some Experts' profiles. JustAnswer is not intended or designed for EMERGENCY questions which should be directed immediately by telephone or in-person to qualified professionals.

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