[Milsurplus] DC vs AC for power distribution

[J. Forster]

Wiki is useful, but the opinions there are of the authors.

No serious EE will waste time taking on the Tesla fans.

The world is full of such things from free energy to cold fusion to
pyramid power to UFOs to anthropomorphic global warming.

-John

==============



> Better alert Wikipedia
> They got it wrong too
> K0UYA
> ----- Original Message -----
> From: "J. Forster" <jfor at quikus.com>
> To: "Paul Kraemer" <elespe at lisco.com>
> Cc: <milsurplus at mailman.qth.net>
> Sent: Tuesday, May 01, 2012 11:13 AM
> Subject: Re: [Milsurplus] DC vs AC for power distribution
>
>
>> Well, it depends on who is telling the story.
>>
>> Tesla was a 'mad' inventor. Not a real engineer. His real fucus was on
>> radiated power. In recent years he has become something of a cult hero.
>>
>> The real brains behind AC was Charles Proteus Steinmetz, who worked for
>> Westinghouse and did the fundamental engineering.
>>
>> -John
>>
>> ================
>>
>>> No, not exactly true.
>>> For those who have never read it, the history of Nikolai Tesla is a
>>> fascinating read
>>> Tesla is credited as being the inventor of our AC power distribution
>>> system
>>> as we know it today, including 3 phase.
>>> History claims Tesla drew this out in the sand one day on the beach
>>> Tesla was a brilliant inventory but not a business man. Westinghouse
>>> saw
>>> the
>>> potential (no pun) of Tesla's inventions and provided the capital to
>>> make
>>> it
>>> happen.
>>> Edison (General Electric), already well invested in dc power
>>> distribution,
>>> attempted to dis-credit the AC power by references to the "deadly ac
>>> power"
>>> used in the electric chair executions in New York.
>>> Although AC power grew became all it is to us today, Tesla died alone
>>> and
>>> poor.
>>> Fascinating stuff
>>> Paul K0UYA
>>> ----- Original Message -----
>>> From: "J. Forster" <jfor at quikus.com>
>>> To: <whitaker at ieee.org>
>>> Cc: <milsurplus at mailman.qth.net>
>>> Sent: Tuesday, May 01, 2012 10:18 AM
>>> Subject: Re: [Milsurplus] DC vs AC for power distribution
>>>
>>>
>>>> Errr...  I think that was Westinghouse v. Edison. Tesla was much
>>>> higher
>>>> frequency.
>>>>
>>>> -John
>>>>
>>>> ============
>>>>
>>>>
>>>>
>>>>> de WB2CPN
>>>>> Will someone bring up the Great Battle between Tesla and
>>>>> Edison over the standard to be used in New York City.
>>>>> And maybe other cities.  That went to court all the way to the
>>>>> top.  Also the mud slinging about the use of AC for the
>>>>> Electric Chair.  Or was the other way around?  Magazines
>>>>> had pictures of scorched skulls.
>>>>> I been zapped by both things, AC and DC, but I'll tell you
>>>>> now neither had a lasting effect.  I think.
>>>>> 73  Clete
>>>>> +++++++++++++++++++++++++++++++++++++++++
>>>>>
>>>>>
>>>>> On 5/1/2012 7:49 AM, Sheldon Daitch wrote:
>>>>>> As we know, AC replaced DC distribution many
>>>>>> years ago, because of the availability of power
>>>>>> transformers, as this allowed the power to be
>>>>>> generated at low voltages, stepped up to higher
>>>>>> voltages and stepped back down to lower
>>>>>> voltages for the customers.
>>>>>>
>>>>>> There is also a trend to go back to DC for high
>>>>>> voltage distribution grid systems, to overcome some
>>>>>> of the challenges of AC distribution systems, related
>>>>>> to the reactive elements (Inductive and capacitive)
>>>>>> in the AC distribution network and cables which
>>>>>> place limitations of transmission line capacity
>>>>>> and distance.  AC networks may also require
>>>>>> additional equipment on the line for compensation,
>>>>>> such as capacitors and  reactors.
>>>>>>
>>>>>> Advances in high voltage high current electronic
>>>>>> components make DC distribution networks far
>>>>>> more acceptable, with AC to DC conversion at the
>>>>>> generator end, but more importantly, the DC to
>>>>>> three phase AC conversion at the user or lower
>>>>>> voltage distribution end of the networks.
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>>>>>
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