On 2018-10-30 9:54 AM, Barry wrote:
>
One last comment: I suggest that an UPS be used just for the surge
protection from A/C and other motors on the line. A large motor can
throw quite a surge onto the line even with no lightning to add to
the voltage. An UPS is really cheap insurance to protect your
station, less than $100 to protect a few $1000.
Beware! Most of what are sold as "UPS" are really "SPS" (standby
power supplies). An SPS does not supply the load from battery and
inverter all the time. Instead, the load is connected directly to
the line and only switched to the battery/inverter when the line
drops below about 70% of nominal voltage (typically 80 V on a 120V
system).
An SPS has little or no surge protection - typically a few MOV
devices that K9YC has rightly identified as causing more damage
than preventing in sensitive electronic equipment!
73,
... Joe, W4TV
On 2018-10-30 9:54 AM, Barry wrote:
Wayne,
Good advice! I use a combination of preventatives. First, I buffer
my power going to any sensitive electronics. I use a battery backup
system, an UPS, to buffer the power. If there is a surge, the battery
absorbs it. Second, I believe you will ultimately have a problem if you
leave your radios connected to you antenna(s). So, I disconnect all of
my station from my antennas during periods when lightning is expected. I
have learned my lesson from having lost equipment. Since I started with
this setup, I have had no problem, and it is far less expensive than a
full blown lightning protection system.
One last comment: I suggest that an UPS be used just for the surge
protection from A/C and other motors on the line. A large motor can
throw quite a surge onto the line even with no lightning to add to the
voltage. An UPS is really cheap insurance to protect your station, less
than $100 to protect a few $1000.
73,
Barry
K3NDM
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