Hi folks,
Well I woke up the other morning at 2am to find all the power off in the
house. I was about to ring the power company and thought I'd better check my
meter box. Turns out one of the RCDs had tripped. I reset it and all was
fine.
What puzzled me was what tripped it. It took out my
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] Thunderbolt power supply open heart surgery
Hi folks,
Well I woke up the other morning at 2am to find all the power off in the
house. I was about to ring the power company and thought I'd better check my
meter box. Turns
Hi Jim,
you may have a problem similar to mine.
In Sydney, with a nominal supply voltage of 240 Volts,
the supply at my place is above 250 volts. The supply authority
says that is in the limits of their specification.
I do not know why they run it so high, maybe they think they will
sell more
Jim Palfreyman wrote:
Has anyone else had this problem?
The PSU that came with my Thunderbolt was DOA as well, like yours there
was the characteristic smell of burnt electronics when I opened it up.
I was lucky, I managed to get an almost exact replacement at a local
electronics shop and,
Swollen capacitors or ones with a little volcano hole are a clue, but there
may be other components that have been stressed but are not yet dead and now
have a shortened life-expectancy. Had this problem with my iMac. Died 3 days
after the smoke alert.Best of luck!
Martin G8BHC
2009/2/17 Dave
.
Joe
-Original Message-
From: time-nuts-boun...@febo.com [mailto:time-nuts-boun...@febo.com] On
Behalf Of Jim Palfreyman
Sent: Tuesday, February 17, 2009 4:13 AM
To: Discussion of precise time and frequency measurement
Subject: [time-nuts] Thunderbolt power supply open heart surgery
Hi
On 2/17/09 2:38 AM, Neville Michie namic...@gmail.com wrote:
Hi Jim,
you may have a problem similar to mine.
In Sydney, with a nominal supply voltage of 240 Volts,
the supply at my place is above 250 volts. The supply authority
says that is in the limits of their specification.
Lux, James P wrote:
I do not know why they run it so high, maybe they think they will
sell more power.
The problem is that many appliances have a 240 or 250 maximum, dual
power supplies for 110 V
switch to take 220 V.
That's actually pretty unlikely. 110V might be what it says on the
As another matter, at light loads in your house/neighborhood, the
voltages will rise, since the distribution voltage is usually set up
so that at nominal load, it's correct, and that allows for some IR
drop in the lines.
I got interested in this area a while ago. PGE replaced the
We had a thread a while back about Dranetz power monitors and UPS built in
monitors. All nice to have, another older technology for power problems is
ferroresonant UPS. More copper and weight as well as a little less efficient
but I like the rugged and simple design. You will also see power
Hi there,
my Watts Up? power meter showed a reading of 130V+ one day coming from PGE
here in NorCal. I confirmed this with another meter.
_https://www.wattsupmeters.com/secure/products.php_
(https://www.wattsupmeters.com/secure/products.php)
I called PGE, and they were surprised that
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