I checked the voltage at the discon

[imok2]

I checked the voltage at the disconnect and read 224 volts from L1 to L2, 224 volts from L1 to ground and 0 volts from L2 to ground. It appears to have a high leg and a neutral instead of two 110 legs. Any one ever see this before, and is it a problem? It doesn't seem right to me, but this is my first year in the trade. I would appreciate some of you experienced techs sharing your knowledge.
THIS IS A PROBLEM ON ANOTHER WEB SITE, ANY COMMENTS APPRECIATED

 

[Barry1961]

I have seen the high leg and neutral used before with no problems. Wether it will work for you depends on what you are plugging into it.

Barry1961

 

[busbar]

Some details on the nature of the electrical source and load by the OP would be helpful. As stated, the problem and need for resolution are not very apparent.

The terms "high leg" and neutral don't have much meaning when discussing a two-wire circuit.

 

[jbartos]

Suggestion: It appears that L2 is grounded, either intentionally or unintentionally. It is not very clear from the original posting what the disconnect is for.

 

[Skogsgurra]

imok2,

Sounds like a very normal european installation where a two-wire distribution uses one grounded N (neutral) and one live L (line). There is also a PE (protective earth) which is normally connected to the N if you have the common TN-C system. So everything looks perfectly normal if you ask someone in Europe. Where are you situated?

 

[jbartos]

Suggestion: 220V single phase, grounded neutral is used outside of Europe too. It is not a bad power distribution system.

 

[skiier]

Delta connected transformer with a line grounded woud give those readings but everyone else told u that one.
I had mag starter once, simple start/stop control for a fan, do a wierd thing. I cud start the fan but the stop button didnt work. Hmm, checked to see the stop button contact was ok ok. checked for voltage ok. Hmmmm, the only way I could de-energize the starter was to turn off it's disconnect. Turns out the design of the start/stop station (Square D)permitted a short to gnd at the back of the stop button. We were connected to a 208v, 3phase, 3wire source with one phase gnded and our starter control was across L1 and L2.The stop button was connected to L1 which happenned to be the gnded phase. so you see our stop button was effectively bypassed. these problems are still out there!

 

[jbartos]

Suggestion to the previous posting. The control circuit malfunctions do happen. However, the control circuit design is the one that counts and should be correct.

 

[skiier]

I agree with you jbartos. I beleive there are provisions against this type of control circuitry design here in Ontario now. I think? Correct me if I'm wrong.
Wouldn't it be safer to use and fuse L2 and L3 for the control cct? Or a control tf properly fused and gnded?
I dont need a code book to tell me that one.

 

[jbartos]

Suggestion: It depends where devices in the control circuit are located. E.g. location of overload relay contact may vary from application to application. Also, the E-stop location tends to have a rigid location on the phase or hot wire side. It is not advised to be in the middle of the control device string.