- Location
- Chapel Hill, NC
- Occupation
- Retired Electrical Contractor
Curiousity
I was at a new construction job I will be doing and they had an old well pump that has been there for many, many years. There is no visible way to check the pump nameplate etc. The builder wanted to use a generator to run it but I had no idea whether it was 240V or 120V. It is an old enough site that it could be 120V.
Is there a way to determine this thru educated guess knowing resistance etc. Is there a standard resistance one would expect for a 240V motor?
We will not be hooking it up because there is a dead short reading to ground but I was wondering if someone could figure it out.
I said we could hook it up 120V and see how it ran -- that would help me determine if it were 240v or 120V but..... Any help
I was at a new construction job I will be doing and they had an old well pump that has been there for many, many years. There is no visible way to check the pump nameplate etc. The builder wanted to use a generator to run it but I had no idea whether it was 240V or 120V. It is an old enough site that it could be 120V.
Is there a way to determine this thru educated guess knowing resistance etc. Is there a standard resistance one would expect for a 240V motor?
We will not be hooking it up because there is a dead short reading to ground but I was wondering if someone could figure it out.
I said we could hook it up 120V and see how it ran -- that would help me determine if it were 240v or 120V but..... Any help