[hpsdr] Over voltage protection

[ct1izu]

I came within a hairs breadth of total destruction of my HPSDR system on the 
weekend. We had very high winds here in CT and the house feeders got tangled 
with the neighbours and we ended up with a 440v supply insead of 220V. The 
psu was very unhappy with this situation and blew the primary 200vw caps in 
the switch mod supply  in short order. Fortunaley the sudden death of the 
primary saved the rest of the sytem.

The central heating system and the Kitchen Micro both lost their input 
transformers. The central heating enginer has just left and is now  200 
euros better off than when he came!!!.

Is anybody aware of any EU style socket outlet strips with a a resetable 
overvoltage trip? I see plenty of surge protected types for spikes but not 
for longer term overvoltage.

By the way, Tungsten bulbs are quite happy at 440v but the new saver tubes 
go off with a big bang!! My older TV with a CRT was also happy at the high 
voltage it must have a MOV\ poly fuse combo as it just shut down  on the 
worst  peaks  and then reset.

An interesting weekend, just need to rebuild the antenna sytem now and 
repair the roof where the mast broke and punched a hole in the tiles.


Shel CT1IZU