Re: [EVGRAY] High Voltage DC Transmission System

Ole and Fredric Fletcher, pay attention to the polarity and methodology 
of transmission of the HVDC.  Remember the articles regarding the earth 
ground return problems up in dairy country, Wisconsin where cattle were 
being electrocuted by poor grounding systems in rural electric grid.  I 
can recite a real life problem with imposing a potential into the earth 
on the dealing with ground return.  One of our Nursing facilities had 
three seperate buildings that shared a two pipe chilled / hot water 
system with buried steel 4 inch lines (supply/ return).   The electrical 
system was 480VAC backbone with delta/wye step down transformers which 
gave a base 208VAC with center tap ground for 120VAC. The facility 
operated just fine for 50 years.  Along came an Electrical Contractor 
that installed a new distribution transformer (100 KVA) during an 
upgrade to one of the out buildings. After operation for several years 
the buried 4 inch steel AC/heating lines developed leaks and sections of 
the removed lines showed electrolyitic (galvanic) errosion.  I 
discovered that the Contractor had installed a delta/delta step-down 
(100 KVA) transformer and grounded one (L-2) of the Secondary terminals 
to get a neutral buss common for 120VAC.  A huge NO,NO cause you had a 
potential of 230V to earth ground.  The difference in ground potential 
between buildings created the galvanic errosion because there was a 
ground return current back to the 480/208VAC backbone in the mains 
building.  This was a huge lesson on the problems encountered with 
relying on earth ground return path.

On 12/7/2018 3:58 AM, Norman Wootan [email protected] [EVGRAY] wrote:
> https://www.electronicshub.org/high-voltage-dc-transmission-system/
>
> Sent from Yahoo Mail on Android 
> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature>
>

Ole, thank you for the photos of the HV components of the HVDC systems. 
Take a look at this attachment from Seimens.. These systems are 
certainly impressive and they have to use huge halls for totally indoor 
operation at such high potentials ( one million V) vs the old HVAC 
outdoor yards.

On 12/7/2018 6:28 AM, Norman Wootan wrote:
>
> Ole and Fredric Fletcher, pay attention to the polarity and 
> methodology of transmission of the HVDC.  Remember the articles 
> regarding the earth ground return problems up in dairy country, 
> Wisconsin where cattle were being electrocuted by poor grounding 
> systems in rural electric grid.  I can recite a real life problem with 
> imposing a potential into the earth on the dealing with ground 
> return.  One of our Nursing facilities had three seperate buildings 
> that shared a two pipe chilled / hot water system with buried steel 4 
> inch lines (supply/ return).   The electrical system was 480VAC 
> backbone with delta/wye step down transformers which gave a base 
> 208VAC with center tap ground for 120VAC. The facility operated just 
> fine for 50 years.  Along came an Electrical Contractor that installed 
> a new distribution transformer (100 KVA) during an upgrade to one of 
> the out buildings. After operation for several years the buried 4 inch 
> steel AC/heating lines developed leaks and sections of the removed 
> lines showed electrolyitic (galvanic) errosion.  I discovered that the 
> Contractor had installed a delta/delta step-down (100 KVA) transformer 
> and grounded one (L-2) of the Secondary terminals to get a neutral 
> buss common for 120VAC.  A huge NO,NO cause you had a potential of 
> 230V to earth ground. The difference in ground potential between 
> buildings created the galvanic errosion because there was a ground 
> return current back to the 480/208VAC backbone in the mains building.  
> This was a huge lesson on the problems encountered with relying on 
> earth ground return path.
>
> On 12/7/2018 3:58 AM, Norman Wootan [email protected] [EVGRAY] wrote:
>> https://www.electronicshub.org/high-voltage-dc-transmission-system/
>>
>> Sent from Yahoo Mail on Android 
>> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature>
>>

Hey, Bert, Phil got an instant erection over this!    Toby, Golka only 
dreamed!

On 12/7/2018 6:38 AM, Norman Wootan wrote:
>
> Ole, thank you for the photos of the HV components of the HVDC 
> systems. Take a look at this attachment from Seimens.. These systems 
> are certainly impressive and they have to use huge halls for totally 
> indoor operation at such high potentials ( one million V) vs the old 
> HVAC outdoor yards.
>
> On 12/7/2018 6:28 AM, Norman Wootan wrote:
>>
>> Ole and Fredric Fletcher, pay attention to the polarity and 
>> methodology of transmission of the HVDC.  Remember the articles 
>> regarding the earth ground return problems up in dairy country, 
>> Wisconsin where cattle were being electrocuted by poor grounding 
>> systems in rural electric grid.  I can recite a real life problem 
>> with imposing a potential into the earth on the dealing with ground 
>> return.  One of our Nursing facilities had three seperate buildings 
>> that shared a two pipe chilled / hot water system with buried steel 4 
>> inch lines (supply/ return).   The electrical system was 480VAC 
>> backbone with delta/wye step down transformers which gave a base 
>> 208VAC with center tap ground for 120VAC. The facility operated just 
>> fine for 50 years.  Along came an Electrical Contractor that 
>> installed a new distribution transformer (100 KVA) during an upgrade 
>> to one of the out buildings. After operation for several years the 
>> buried 4 inch steel AC/heating lines developed leaks and sections of 
>> the removed lines showed electrolyitic (galvanic) errosion.  I 
>> discovered that the Contractor had installed a delta/delta step-down 
>> (100 KVA) transformer and grounded one (L-2) of the Secondary 
>> terminals to get a neutral buss common for 120VAC.  A huge NO,NO 
>> cause you had a potential of 230V to earth ground.  The difference in 
>> ground potential between buildings created the galvanic errosion 
>> because there was a ground return current back to the 480/208VAC 
>> backbone in the mains building.  This was a huge lesson on the 
>> problems encountered with relying on earth ground return path.
>>
>> On 12/7/2018 3:58 AM, Norman Wootan [email protected] [EVGRAY] wrote:
>>> https://www.electronicshub.org/high-voltage-dc-transmission-system/
>>>
>>> Sent from Yahoo Mail on Android 
>>> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature>
>>>

https://www.electronicshub.org/high-voltage-dc-transmission-system/
Sent from Yahoo Mail on Android

An erection or his ass got wet ?     sorry  !  the culprit to that line of thought its the transformer electrodes ! 

They look like a huge double dong sex toy thing ! .... 


 

---In [email protected], <nwootan@...> wrote :

 
 Hey, Bert, Phil got an instant erection over this!    Toby, Golka only dreamed!

 

 On 12/7/2018 6:38 AM, Norman Wootan wrote:

 Ole, thank you for the photos of the HV components of the HVDC systems. Take a look at this attachment from Seimens.. These systems are certainly impressive and they have to use huge halls for totally indoor operation at such high potentials ( one million V) vs the old HVAC outdoor yards.

 On 12/7/2018 6:28 AM, Norman Wootan wrote:

 Ole and Fredric Fletcher, pay attention to the polarity and methodology of transmission of the HVDC.  Remember the articles regarding the earth ground return problems up in dairy country, Wisconsin where cattle were being electrocuted by poor grounding systems in rural electric grid.  I can recite a real life problem with imposing a potential into the earth on the dealing with ground return.  One of our Nursing facilities had three seperate buildings that shared a two pipe chilled / hot water system with buried steel 4 inch lines (supply/ return).   The electrical system was 480VAC backbone with delta/wye step down transformers which gave a base 208VAC with center tap ground for 120VAC. The facility operated just fine for 50 years.  Along came an Electrical Contractor that installed a new distribution transformer (100 KVA) during an upgrade to one of the out buildings. After operation for several years the buried 4 inch steel AC/heating lines developed leaks and sections of the removed lines showed electrolyitic (galvanic) errosion.  I discovered that the Contractor had installed a delta/delta step-down (100 KVA) transformer and grounded one (L-2) of the Secondary terminals to get a neutral buss common for 120VAC.  A huge NO,NO cause you had a potential of 230V to earth ground.  The difference in ground potential between buildings created the galvanic errosion because there was a ground return current back to the 480/208VAC backbone in the mains building.  This was a huge lesson on the problems encountered with relying on earth ground return path.

 On 12/7/2018 3:58 AM, Norman Wootan nwootan@... mailto:nwootan@... [EVGRAY] wrote:

   https://www.electronicshub.org/high-voltage-dc-transmission-system/ https://www.electronicshub.org/high-voltage-dc-transmission-system/
 Sent from Yahoo Mail on Android

Norm,

In South America the largest electric utilities are building HVDC with
ground carrying half the circuit.

On 12/7/2018 7:28 AM, Norman Wootan [email protected] [EVGRAY] wrote:
>  
>
> Ole and Fredric Fletcher, pay attention to the polarity and
> methodology of transmission of the HVDC.  Remember the articles
> regarding the earth ground return problems up in dairy country,
> Wisconsin where cattle were being electrocuted by poor grounding
> systems in rural electric grid.  I can recite a real life problem with
> imposing a potential into the earth on the dealing with ground
> return.  One of our Nursing facilities had three seperate buildings
> that shared a two pipe chilled / hot water system with buried steel 4
> inch lines (supply/ return).   The electrical system was 480VAC
> backbone with delta/wye step down transformers which gave a base
> 208VAC with center tap ground for 120VAC. The facility operated just
> fine for 50 years.  Along came an Electrical Contractor that installed
> a new distribution transformer (100 KVA) during an upgrade to one of
> the out buildings. After operation for several years the buried 4 inch
> steel AC/heating lines developed leaks and sections of the removed
> lines showed electrolyitic (galvanic) errosion.  I discovered that the
> Contractor had installed a delta/delta step-down (100 KVA) transformer
> and grounded one (L-2) of the Secondary terminals to get a neutral
> buss common for 120VAC.  A huge NO,NO cause you had a potential of
> 230V to earth ground.  The difference in ground potential between
> buildings created the galvanic errosion because there was a ground
> return current back to the 480/208VAC backbone in the mains building. 
> This was a huge lesson on the problems encountered with relying on
> earth ground return path.
>
> On 12/7/2018 3:58 AM, Norman Wootan [email protected] [EVGRAY] wrote:
>>  
>> https://www.electronicshub.org/high-voltage-dc-transmission-system/
>>
>> Sent from Yahoo Mail on Android
>> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature>
>

Mick, from my friend Fredric Fletcher who is working with HVDC 
transmission lines.

In my experience I think it is wise to not rely upon earth return. 
  There is even some logic to not having an earthen system.


The earth returns for the Pacific Intertie at Sylmar impose so much 
current in the water lines there that the water pipes can only handle it 
for a half hour.

An ocean grounding line reduces that flow substantially.   It is in the 
process of being replaced now as the original one has corroded.

With regards to the Southern Transmission System there has been a 
lawsuit on the earth return that has been in process for over 20 years 
regarding some hog and dairy operations.   None of the businesses have 
been successful, they are all out of work failed operators.  I think it 
is an effort supported only by the attorneys who have some hope of 
recouping some fees for a quarter of a century of legal work.  But it 
has been shown in the court that the operators can not even correlate 
the current flows on the farms with the operation of the line.

There can be a lot of imagination in electrical effects.

Sent from my iPad

On Dec 7, 2018, at 4:51 AM, Norman Wootan <[email protected] 
<mailto:[email protected]>> wrote:

> <inijalchpfmkbhfl.pn
>

Hey, Bert, Phil got an instant erection over this!    Toby, Golka only 
dreamed!

On 12/7/2018 6:38 AM, Norman Wootan wrote:

Ole, thank you for the photos of the HV components of the HVDC systems. 
Take a look at this attachment from Seimens.. These systems are 
certainly impressive and they have to use huge halls for totally indoor 
operation at such high potentials ( one million V) vs the old HVAC 
outdoor yards.

On 12/7/2018 6:28 AM, Norman Wootan wrote:

Ole and Fredric Fletcher, pay attention to the polarity and methodology 
of transmission of the HVDC.  Remember the articles regarding the earth 
ground return problems up in dairy country, Wisconsin where cattle were 
being electrocuted by poor grounding systems in rural electric grid.  I 
can recite a real life problem with imposing a potential into the earth 
on the dealing with ground return.  One of our Nursing facilities had 
three seperate buildings that shared a two pipe chilled / hot water 
system with buried steel 4 inch lines (supply/ return).   The electrical 
system was 480VAC backbone with delta/wye step down transformers which 
gave a base 208VAC with center tap ground for 120VAC. The facility 
operated just fine for 50 years.  Along came an Electrical Contractor 
that installed a new distribution transformer (100 KVA) during an 
upgrade to one of the out buildings. After operation for several years 
the buried 4 inch steel AC/heating lines developed leaks and sections of 
the removed lines showed electrolyitic (galvanic) errosion.  I 
discovered that the Contractor had installed a delta/delta step-down 
(100 KVA) transformer and grounded one (L-2) of the Secondary terminals 
to get a neutral buss common for 120VAC.  A huge NO,NO cause you had a 
potential of 230V to earth ground.  The difference in ground potential 
between buildings created the galvanic errosion because there was a 
ground return current back to the 480/208VAC backbone in the mains 
building.  This was a huge lesson on the problems encountered with 
relying on earth ground return path.

On 12/7/2018 3:58 AM, Norman Wootan [email protected] [EVGRAY] wrote:

https://www.electronicshub.org/high-voltage-dc-transmission-system/


Sent from Yahoo Mail on Android 
<https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature>