- #1
anagon
- 8
- 2
Hey... how's it going?
I've built a step down box to run 110 VAC appliances off incoming 240 VAC (Malaysia). The only components in the box are a cooling fan (240 V) and a great big transformer. It's a single phase 30A output aluminium cored 240V->110V 50 Hz transformer that weighs about 25 kg.
I have no idea at all what the inductance of the transformer is and I have no idea what sort of an inductive kick it'll give if the incoming 240 VAC is interrupted for any reason... but I feel I really should have some kind of protection. This is especially important since it's running expensive scientific equipment as well as a PC.
Do I need kickback protection? How should I implement it? Should I use a MOV or a TVS or an RC snubber? Or a combination?
Would anyone be able to recommend some specific components... or maybe just indicate some rough specs?
Thanks!
- Leo
I've built a step down box to run 110 VAC appliances off incoming 240 VAC (Malaysia). The only components in the box are a cooling fan (240 V) and a great big transformer. It's a single phase 30A output aluminium cored 240V->110V 50 Hz transformer that weighs about 25 kg.
I have no idea at all what the inductance of the transformer is and I have no idea what sort of an inductive kick it'll give if the incoming 240 VAC is interrupted for any reason... but I feel I really should have some kind of protection. This is especially important since it's running expensive scientific equipment as well as a PC.
Do I need kickback protection? How should I implement it? Should I use a MOV or a TVS or an RC snubber? Or a combination?
Would anyone be able to recommend some specific components... or maybe just indicate some rough specs?
Thanks!
- Leo