johnny watt
Member
About a dozen times per year we lose a condenser due to phase loss (out of 150 condensers in the field).
A small percentage of the condensers have an upgrade on them for protection from phase loss.
But in 99% of the failures, the phase loss is due to the contactor contacts, rather than something up stream.
Therefor the typical phase protector would be monitoring phases in front of the failure and not see the failure.
Is there an easy turn-key solution for monitoring phase loss due to contactor failure? I know the condensors can withstand a phase loss for a limited amount of time. I could probably rig something up with a TDR combined with a phase monitor and take a guess at what amount of time to set it for. But it seems like the industry should already have something out there to solve this problem.
On a related subject...
Is there a solid state contactor out there, that is more reliable than the typical mechanical contactors I see in the field? Perhaps one that monitors the final output of its own triacs (or however they work) and shuts down if the triac fails.
On a related subject...
Is there a solid state defrost clock out there, that is more reliable than the typical mechanical defrost clocks I see in the field?
A small percentage of the condensers have an upgrade on them for protection from phase loss.
But in 99% of the failures, the phase loss is due to the contactor contacts, rather than something up stream.
Therefor the typical phase protector would be monitoring phases in front of the failure and not see the failure.
Is there an easy turn-key solution for monitoring phase loss due to contactor failure? I know the condensors can withstand a phase loss for a limited amount of time. I could probably rig something up with a TDR combined with a phase monitor and take a guess at what amount of time to set it for. But it seems like the industry should already have something out there to solve this problem.
On a related subject...
Is there a solid state contactor out there, that is more reliable than the typical mechanical contactors I see in the field? Perhaps one that monitors the final output of its own triacs (or however they work) and shuts down if the triac fails.
On a related subject...
Is there a solid state defrost clock out there, that is more reliable than the typical mechanical defrost clocks I see in the field?