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#194950 - 07/02/10 06:00 AM
Hecto Watt Hour meter -- Hectowattheures
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Member
Registered: 12/08/05
Posts: 850
Loc: Titirangi, Akld, New Zealand
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This interesting hectowatthour meter I saw on the web and was one I needed to add to my meter collection.
Three photo's are already put in the photo gallery. the meter measures in HWH instead of kWh.
The meter was used on a 127 Volts service in Paris Rated 3 Ampères and 50 Hertz.
Never seen a electricity meter like that before.
Regards
Raymond
_________________________
The product of rotation, excitation and flux produces electricty.
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#194982 - 07/04/10 12:09 AM
Re: Hecto Watt Hour meter -- Hectowattheures
[Re: noderaser]
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Member
Registered: 12/08/05
Posts: 850
Loc: Titirangi, Akld, New Zealand
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Great ! I would have loved to have a look in that meter pile at your POCO. One thing is sure. These new meters won't last the time. Within 5 years most of these new meters will develop problems within the electronic parts, or just stop working.
Above HWH meter is from the 1920's, the fact that it measure Hectowatthours and made in Paris makes it a special meter for me.
_________________________
The product of rotation, excitation and flux produces electricty.
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#194999 - 07/05/10 12:53 PM
Re: Hecto Watt Hour meter -- Hectowattheures
[Re: RODALCO]
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Member
Registered: 06/07/06
Posts: 567
Loc: Victoria, BC, Canada
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The biggest problem with mechanical meters is they run slower over time and the customer gets more and more free electricity. The electronic ones stay accurate far longer and can report usage over the power lines as well as time of day usage. The failure of internal components is going to be an issue but I have seen lots of electronic meters that are 16 to 20 years old and still in reliable operating order.
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#195014 - 07/06/10 02:53 AM
Re: Hecto Watt Hour meter -- Hectowattheures
[Re: noderaser]
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Member
Registered: 12/08/05
Posts: 850
Loc: Titirangi, Akld, New Zealand
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mikesh the electromechanical meters from the last 35 years with floton bearings (Sangamo, Landis&Gyr, English Electric) generally don't suffer from slowing down. Generally they are very accurate and often within the +-2% range. The older meters with pivolt and jewel bearing do suffer from wear and tear and can slow down as well as speed up as the brake magnet weakens over time.
Electronic meters are very sensitive to spikes on the grid. Lightning and switching surges. Also the capacitors tend to fail and cause errors. We had major problems with Enermet meters with faulty capacitors which failed in warm outside meter boxes. Also LCD displays don't like big temperature variations.
The advantages are remote reading capabilities and time of use data as noderasor sais.
_________________________
The product of rotation, excitation and flux produces electricty.
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#195019 - 07/06/10 11:05 AM
Re: Hecto Watt Hour meter -- Hectowattheures
[Re: RODALCO]
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Member
Registered: 06/07/06
Posts: 567
Loc: Victoria, BC, Canada
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Rodalco Thanks for that. I will update the data banks. Trouble is every new bit of info pops an old one out. I will probably be OK as long as I remember the wife's name ;-)
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#195034 - 07/06/10 08:40 PM
Re: Hecto Watt Hour meter -- Hectowattheures
[Re: mikesh]
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Member
Registered: 04/03/02
Posts: 4904
Loc: Brick, NJ USA
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Ray: (Rodalco)
Am I missing something? I can't find the pics!
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John
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#195042 - 07/07/10 08:03 PM
Re: Hecto Watt Hour meter -- Hectowattheures
[Re: HotLine1]
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Member
Registered: 07/05/02
Posts: 8344
Loc: SI,New Zealand
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Ray: (Rodalco)
Am I missing something? I can't find the pics! John, Have a gander HERE. 
_________________________
Let's face it, these days if you're not young, you're old - Red Green
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#195045 - 07/07/10 08:44 PM
Re: Hecto Watt Hour meter -- Hectowattheures
[Re: Trumpy]
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Member
Registered: 04/03/02
Posts: 4904
Loc: Brick, NJ USA
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Thanks Trumpy...appreciate the path to the good stuff!
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John
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