MichaelSK
Member
This electrical problem has me perplexed. I thought Valveman, from another forum/thread, solved the problem with a simple straight forward explanation - the Klixon-type breakers become weaker with subsequent "breaks."
Background: 3 y/o Shakti 3/4 hp 3-wire submersible pump - the control box has two breakers (start and main/run). I have checked amps on several occasions, and they have been nominal - well within specs. (e.g. The Y-line amps ~ 5.4 [6.7/7.37]; B-main amps ~ 5.1 [5.8/6.38]; R-start amps ~ 2.0 [2.6/2.86]) note: the numbers in [ ] are full load/max load specs.
Based on what Valveman said (makes good sense, appreciated his explanation), I removed the Klixon breaker and installed a 7.5 amp slow-blow fuse. Went through a couple of fuses, apparently there are intermittent load spikes on the "main circuit," which I have not been able to isolate and describe.
Does anyone have any suggestions how to problem solve this one? I am in the process of accessing two junction boxes to assess the line connections (?condensation, oxidation, intermittent shorting?). Short of purchasing an entire new length of wire to run from the control box, which is located in the main house mechanical room, down to the well head - any other suggestions?
At this point, I am reluctant to merely short the breaker if indeed there is an unidentified problem.
Background: 3 y/o Shakti 3/4 hp 3-wire submersible pump - the control box has two breakers (start and main/run). I have checked amps on several occasions, and they have been nominal - well within specs. (e.g. The Y-line amps ~ 5.4 [6.7/7.37]; B-main amps ~ 5.1 [5.8/6.38]; R-start amps ~ 2.0 [2.6/2.86]) note: the numbers in [ ] are full load/max load specs.
Based on what Valveman said (makes good sense, appreciated his explanation), I removed the Klixon breaker and installed a 7.5 amp slow-blow fuse. Went through a couple of fuses, apparently there are intermittent load spikes on the "main circuit," which I have not been able to isolate and describe.
Does anyone have any suggestions how to problem solve this one? I am in the process of accessing two junction boxes to assess the line connections (?condensation, oxidation, intermittent shorting?). Short of purchasing an entire new length of wire to run from the control box, which is located in the main house mechanical room, down to the well head - any other suggestions?
At this point, I am reluctant to merely short the breaker if indeed there is an unidentified problem.