[..]
Sir,
(at the time of writing)
Are you aware April 26 is WIPD?
http://en.wikipedia.org/wiki/World_Intellectual_Property_Day
I am claiming the right of redress under IP 'rules'
So.
Let us deal with the Usenet portion of your post, first.
The rest is now superfluous to the thread... as
the fools humping your post ably demonstrate.
Message-ID: <
[email protected]>
Message-ID: said:
P.P.S. Rather childish to modify the headers with followup to
'alt.clueless'. Is this your way of winning arguments, tricking people
into replying to other news groups?
Why ask? The method certainly works well for the fools among
us. Just go check <a.c> for the presence "Mho"/"Josepi" under
the past 'disguises'.
(eet) represents (eet)self most ably.
http://preview.tinyurl.com/3uubwo8
http://groups.google.com/groups/sea..._usubject=&as_uauthors=John+P.+Bengi&safe=off
http://preview.tinyurl.com/3vcx8e6
http://groups.google.com/groups/sea...ess&as_usubject=&as_uauthors=Gym+Bob&safe=off
Those links address either 'end' of a huge spectrum of stupidity
GB has proven (eet) is well deserved of in recognition.
That said, I have never really cared for the attitude displayed
by you "Big Apple" folk, neither.
Loud mouthed postulating mob of jerks.. in my humble opinion.
So it is, I, rarely (if ever) even acknowledge the presence with
anything more than a nod or a wink in a post. Such was the
spirit allowed in my earlier comment.
Where you find yourself in such a predicament you could
consider using nntp software that allows a full view of a
post, and the response _you_ generate.
http://mirrors.easynews.com/agent/ftp.forteinc.com/pub/agent/english/
Glorified web browsers may just serve you text jocks just
far as is needed to make _you_ feel good. Do not make
it _my_ problem they land you deeply in shit when you are
busy fucking with posts you do not understand.
As said... jes sayin' like.
You're not worth any more of my time...<plonk>
Just who do you think you are fooling?
And do please quantify just where have I sought or
expected _any_ of your time?
My post was in response to GB shite posted, naught
to do with _you_.
You get some of mine (time - now) as you are posting
in spectacular simulation of an aggrandizing git!
That, after simply reading a heads up in the
sub-thread!
Parasite... you understand (eet) when put that simply?
GB takes a host, sucks it dry, drops off and
attaches to the next passing fat bus.
There is how GB has managed to bring down a
score of newsgroups.
Playing the self appointed "x-spurts" in a group off
against each other. Need I say "USAnians" are his
favorite "host" as you guys are so far up ya-self
you just do not know when the GB bug is hooked
into your femoral artery watching you wank yourself
stoopid!
You may well know GB in another of his modes.
Same MO.. different dress.
You (daestrom) certainly know the edjut:
http://al.howardknight.net/msgid.cgi?STYPE=msgid&MSGI=<[email protected]>
AND...
as "Solar Flare"
http://groups.google.com/groups/pro...AACceBADITErDr7_oJBN-CH8rhlH0Pnl47z4AZhN98BFg
... there exists many like examples.
For the rest???
Read it if you must :-/
/sets clock
--
[fxd the fucking mess WLM made of the sub-thread]
"daestrom" wrote in message On 4/19/2011 17:28 PM, Jim Wilkins wrote:
...Those tap-changers you
mentioned have discrete steps and most have time-delays in them with a
dead-band around their set-point. These are designed so the thing
doesn't wear out constantly stepping up and down when the voltage
set-point is 'between' the tap settings.
daestrom
<snip>
Would the contacts be the tungsten (heavy) cylindrical slugs sometimes
found below equipment-laden power poles?
jsw
The few tap-changers I've seen 'up close and personnel' are in
sub-stations, not pole-mounted. The contacts are in oil-bath and
arranged such that they don't open under appreciable current (multiple
contacts, a center-tapped inductor and ingenious mechanism).
daestrom
OCB, my friend. Another thing altogether.
Sorry dude.. someone should have explained to you what
you were observing.
Nonsense. I know an Oil Circuit Breaker and an LTC (Load Tap CHanger)
and I can certainly can tell them apart. Maybe you don't recognize my
description of an LTC because you've never seen one?
You're no 'friend' of mine, and I don't care for your advice. The other
poster brought up the question about tungsten contacts in a tap changer
on a pole. I merely replied with my experience of load-tap changers.
As for being around too long, you need to get out more.
Another of the problems you guys suffer, poor comprehension.
I _said_ "You have been around a loooong time".
/drawl
Go think about the differences of context, pilgrim.
/end drawl
[apols to the Duke]
I've seen brand-new multi-MVA LTC's that use reactance switching installed as
recently as last year. The controls are no longer agastats and
voltage-sensitive relays, that's been replaced with solid-state/digital.
But the power circuit, including the winding taps, and all, are still
the same.
'Mho' is right to point out that the 'contacts' are sometimes really two
separate ones, an arcing set and a steady-state load-carrying one.
Although the ones I've seen had a silver-plate.
Just because the whole LTC is immersed in oil, doesn't make it an OCB.
No, again I'll ask you to not speak for me. I'm describing load-tap
changers, not OCB's.
So it seems, as you say, now.
In my read of your verbosity you ring bells to demonstrate your
ignorance in not identifying with someone who knows more than
enough to test what you do actually know. Posting pompous
buffoonery to create some form of "I am the expert here"
communication (as you have done in your 'implosion') is wasted
effort in these "home-moaner" type newsgroups. Nobody is interested
beyond "cheap", without that word in your post the eyes just glaze
over. If you want direction to newsgroups where professionals
discuss such things, just ask.
If you don't know what multi-MVA load-tap changers
are or never seen one, kindly STFU. The design of them is simple, stood
the test of many years and still used today.
Well that's nice to know.
Given the length of your unsolicited response I was prompted
to read from the line (quantity) length a "new wheel" had been
installed, universally
Observing modern (post Y2000) switchyards
I do wonder just how the internals of those "from Mars"
structures would present with the covers off.
Tis somewhat comforting to know the basics remain
as invented, albeit described in somewhat flowery language
by those who stand in awe of it all being a "big deal".
HV is not, a "big deal", simply being fucking dangerous
when designed and/or maintained by the likes of those
posting to this thread!
Fortunately "Regulation" keeps the deadheads out of the
professional workplace.
The mechanism and windings *are* submerged in the oil of the transformer
tank, but that doesn't make them OCB's. The oil is used to cool the
windings just like all MVA sized transformers.
oH indeed.
How generous of you in saying :-~
Dare I say "PCB free"??
Feeling a need to make statement about such a basic
attribute of HV switchyard apparatus says you aren't so sure
of your topic. Be very sure I am, and IF you are currently employed
in the industry then I can say "long before your time my role was
principally overseeing contracted maintenance"... for the *owner*
of the equipment. You are familiar with maintenance requirements?
http://www.esigroup.net/
Can you say "Torr" ???
You challenge me, claiming I speak for you - which I was not - and
yet here you are speaking for GB... tut tut, my dear fellow.. tut tut
No-load tap changers often use a screw and clamp
mechanism. But as the name implies, they cannot change position while
loaded. The system has no provisions for interrupting even normal load
current.
Load-tap changers are a different design that avoids having to
disconnect the load while changing taps. As your own reference states,
'Some form of impedance is used to prevent short-circuiting of the
tapped sections'. A simple 'slider' of the make-before-break' design
would not work. As soon as the slider shorted across a tap section,
large currents would through across the slider (even a 2% step will
generate huge currents when directly shorted by such a slider). Then
the trailing edge of your 'slider' would have to interrupt that current,
lots of arcing, thing wouldn't last very long.
Again the problem of "speaking amongst plebs" is apparent.
"Sliding mechanism" is engineering 'speak' for a transitional change
of state. In contrast (if you like) to the peaks and troughs of elements
of any generated sinusoidal wave, single or polyphase.
Your reading telling you it is *my* description of the physical
operation of a TC says more about you than it does anything I could
print.
One common way to solve this is a center tapped inductor. Each end is
connected to a contact that can move from tap to tap, the center tap is
where the load current is taken from. So the load current splits in the
two halves of the inductor, and the effect of the inductance is
completely canceled out. But when one contact is on a different tap
from the other, the end-to-end inductance limits the short circuit
current of the two adjacent taps. This type can step with very large
load currents and some are even rated for 'half-step' operation,
providing finer voltage adjustments without the cost of more individual
taps.
Another method is to use a second circuit with a resistance that
connects to a tap. Then the main load carrying contacts can open with
the current flowing through it interrupted easily. Then the main load
contact moves to a new tap, and the auxilary/diverter-switch contact
reopens. The diverter-switch contact can't be kept closed too long
because the resistor is carrying full load current and will rapidly heat
up.(hence this type has to 'step' much faster to avoid this)
Best you go write yourself a tech sheet and mount it on a website said:
daestrom
P.S. Your link doesn't mention 'slider' contacts anywhere. Proof you
just made that up??
Again the problem of "speaking amongst plebs" is apparent.
"Sliding mechanism" is engineering 'speak' for a transitional change
of state. In contrast (if you like) to the peaks and troughs of elements
of any generated sinusoidal wave, single or polyphase.
Your reading telling you it is *my* description of the physical
operation of a TC says more about you than it does anything I could
print.
