 |
Hello and welcome to LMPForum, like most online communities you must register to view or post in our community, but don't worry this is a simple free process that requires minimal information. Take advantage of it immediately Register Now There are many great features that are not available to guests at LMPForum |
Forgot Password |
  |
240v 3-wire Sub-pump Starting |
·
·
·
·
·
·
·
·
·
·
·
·
  Jun 16 2009, 12:44 PM
Post
#1
|
|
 Group: Members Posts: 1 Joined: 16-June 09 Member No.: 5,538  |
Hi,
I have a single phase 1hp submersible pump in my 300-foot drilled well. It is 240 volt, single phase 3-wire system controled by a pressures switch connected to a pressure tank. It is capacitor start through a relay. Controls are by Franklin Electric. When pump is running (not starting) should I be able to measure 240V between the start winding and neutral leads of the pump motor? Is this normal or is the start relay stuck? Thanks! |
 |
 
|
|
Jun 17 2009, 04:30 AM
Post
#2
|
|
 Intermediate Member Group: Full Member Posts: 38 Joined: 7-June 06 From: New Zealand Member No.: 1,554 |
You sure it's not a run capacitor in which case it's alright!
there is probably an internal common (where run & start are joined and coming out as one wire), one run and one start from motor into control box. where are you actually measuring the voltage at in the circuit and why are you testing the wiring. I'm assuming that it is tripping or going out on overload? |
|
|
|
|
Jun 17 2009, 07:04 PM
Post
#3
|
|
|
Member Group: Full Member Posts: 78 Joined: 13-June 09 Member No.: 5,502 |
Better always to look at the currents - they are the best indicator of what happening.
|
|
|
|
|
Similar Topics
| Topic Title | Replies | Topic Starter | Views | Last Action | |||
|---|---|---|---|---|---|---|---|
 |
17 | BigMax | 3,047 | 14th October 2002 - 08:04 AM Last post by: theDOG |
|||
 |
1 | -ksvs29- | 3,120 | 15th August 2002 - 09:22 PM Last post by: marke |
|||
|
1 | andromeda | 2,218 | 14th November 2002 - 10:02 PM Last post by: marke |
|||
|
2 | Shink | 6,089 | 8th October 2003 - 01:41 AM Last post by: grobert |
|||
|
3 | -mgendron- | 1,556 | 8th October 2003 - 01:56 AM Last post by: grobert |
|||
|
Lo-Fi Version | Time is now: 3rd September 2010 - 07:34 PM |
