I am in the process of collecting the parts for a power line conditioner project. The other threads on this forum have been very helpful. Thanks guys!
I am now turning my attention to transient surge protection for the conditioner. I understand that there is several types of suppression technology. One that uses a shunt inductor to limit surges (www.zerosurge.com) and (of interest to me) MOV's. In addition there are some other technologies that I am not considering at this point.
I have several questions that I hope someone can answer:
1.0 What is an optimal voltage rating for MOV's? I understand that the closer one specs MOV's to the line voltage the more often they will conduct and therefore a higher probability that they will have their energy rating exceeded and be fried.
2.0 Are the voltage specs for MOV a RMS or a peak spec?
3.0 Does it make sense to parallel MOV's to get a higher energy handling capacity or is there suffient variance in the specs of the MOV's so that it is probable that only one of a parallel set of MOV's conduct and effectively the other MOV's do not conduct in a transient spike situation?
4.0 I see that some transient suppressors have a light that indicates that the MOV's are still alive and well (ie. not blown apart by a surge beyond the spec of the device). Does anyone know what a circuit is that does that?
Thanks
Doug
I am now turning my attention to transient surge protection for the conditioner. I understand that there is several types of suppression technology. One that uses a shunt inductor to limit surges (www.zerosurge.com) and (of interest to me) MOV's. In addition there are some other technologies that I am not considering at this point.
I have several questions that I hope someone can answer:
1.0 What is an optimal voltage rating for MOV's? I understand that the closer one specs MOV's to the line voltage the more often they will conduct and therefore a higher probability that they will have their energy rating exceeded and be fried.
2.0 Are the voltage specs for MOV a RMS or a peak spec?
3.0 Does it make sense to parallel MOV's to get a higher energy handling capacity or is there suffient variance in the specs of the MOV's so that it is probable that only one of a parallel set of MOV's conduct and effectively the other MOV's do not conduct in a transient spike situation?
4.0 I see that some transient suppressors have a light that indicates that the MOV's are still alive and well (ie. not blown apart by a surge beyond the spec of the device). Does anyone know what a circuit is that does that?
Thanks
Doug
Comment