Autoformer
What would be the proper sequence of using an Autoformer and a surge protector from coach to post?
Forum Discussion
Lynnmor wrote:
Some autoformers have built in spike and surge protection. I don't know how effective they are, but I see no need to add a surge protector ahead of the auto former.
Frank's Voltage Booster doesn't say anything about spike or fault protection.
The Hughes Autoformer Manual says it will protect from "various spikes and surges" -- but, like Frank's, it says nothing about protection from electrical faults, like an open neutral.
PowerMaster says it "Protects all of your electronic devices against spikes and surges up to a direct lightning strike". Hubba hubba.
TRC's Voltage Regulators do not protect against spike and surges, but are open neutral "tolerant" (i.e., an open neutral won't fry the regulator).
Lynnmor wrote:
Adding a surge protector after an autoformer that has protection may not help much. I have read that you should not stack surge protectors in this manner.
I think as you can see from above NONE of the autoformers/voltage regulators above offer any electrical fault protection, except TRC's which is just for an open neutral.
I went with TRC's "solution" which was an expensive 50A fault indicator ("indicator" not protector) + 50A Voltage Regulator + 50A Surge Guard Fault Protector.
