P
Pieyed Piper
Sombody needs to raid your skull with a baseball bat.
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Sombody needs to raid your skull with a baseball bat.
T
Tzortzakakis Dimitrios
Mine,must be placed on the window sill all the time, to receive the signal? "Pieyed Piper said:
from Frankfurt a.M. (remember, Crete is at the southmost end of EU). It also
has a weather station, complete with barometer, humidity meter and
thermometer.
T
Tzortzakakis Dimitrios
Here, they have the base-load plants running 24/7 anyway (Crete, south? "daestrom said:Well, the simple answer is, "By raising/lowering the speed of the
connected generators."
The more complicated answer has to do with many generators are running as
base-load where the governor is *not* the item controlling steam/power
flow into the generator. And a few generating units *are* running as
'regulating units', where power flow into the generator is a function of
the generator's speed.
To raise the system frequency, the sysop can call a *non-regulating* and
has them pick up more load. This slowly raises the system speed and as
speed rises the regulating plants shed some load as they speed up. If the
regulating units are adjusted well, they will all shed load in similar
percentages. The result is the base-load unit is carrying more load and
the grid frequency is now maintained at a higher level by the less-loaded
regulating units.
You can get the same effect by raising the governor setting of one or more
regulating unit. But raising the setting on only a few regulating units
causes them to pick up load away from other regulating units. So
naturally you call them and ask them to speed up a bit. So 'adjusting'
all the regulating units can take a while.
Which way you choose to go depends on how well the various regulating
units are balanced and how evenly loaded your base-units are and other
factors (hydro have complex water policies).
At least that's how it used to be done. Now with deregulation you have to
also consider all sorts of price schemes where one base unit might be
obligated at one price while another is contracted to deliver a certain
amount of power corresponding to a particular customer agreement.
Also, nowadays computer programs also keep track of various contract $$
and unit limits and distribution line limits. A pretty fair amount of
prediction of what load will be needed hour-by-hour and more. Many
regulating units now can be controlled over at least part of their load
range from the sysop using SCADA computer systems. Of course as with any
computer, GIGO (garbage-in, garbage-out).
Greece, isolated small grid), basically two-stroke diesels and small steam
turbines, fired with mazut.), and they have the servers that control the
grid control a regulating unit (usually a gas turbine, fired with ordinary
diesel) controlling its output so that it picks/sheds load. There are UF
(Under Frequency) relays on select medium-voltage (15 kV) circuit breakers
that shed those loads, when the grid's frequency goes below a chosen point
(automatic trip of those breakers). The best fuel economy have the
two-stroke diesels, with 100 grams of mazut for each kWh IIRC, and then the
steam-turbines, with 300 gram/kWh of mazut. The worst are the gas-turbines,
with their expensive fuel, and are used only in peaks. There are no hydro in
Crete.
D
Dori
That's just DimBulb talking hard shit like a typical East County bitch.
D
Dori
Peter said:
You think DimBulb is pathetic you should check out his neighboorhood
East San Diego County where a bunch of wanna be skinheads and bikers
snort meth and drive lifted trucks and think they are all hard.
D
Dori
krw said:
No, his mama got pregnant with him and dropped out of the 9th grade like
every teenage bimbo does in East County.
D
daestrom
Tzortzakakis said:
Years ago they bought a lot of such clocks for use in all the buildings
at work. *After* they bought them and installed them, they found out
that such clocks don't work very well in commercial buildings with a lot
of steel. Such radio clocks are not all they're cracked up to be sometimes.
Now we just use the time on the PC since they all synch with a
time-server that in turn syncs with nist.gov.
For the data-acquisition computers, that aren't allowed to be tied to
our business network or internet, we put a GPS antenna on top of the
building and tie the receiver into the DAS system.. Some folks laugh
and ask if we're expecting the building to move much
daestrom
daestrom
P
Pieyed Piper
AGAIN, the retarded little **** gets it wrong.
I do not live in East County. I am not from East County.
Where do you want to meet, miss little soft shit?
You talk a good one. Put your body where your pissy little **** mouth
is. Put up or shutup, ****.
I've got nine inches of 'typical bitch' to go up in your typically
totally already badly reamed slut ass with, little ho.
D
daestrom
Tzortzakakis said:
So you only have one or two units acting as regulating units? Then it
certainly would be easy to keep them set the same as you adjust up/down.
When you have many more units working 'regulation', it's often easier
to raise/lower a non-regulating unit. That way the settings of all the
regulating units don't have to be adjusted together constantly
throughout the day.
Some non-regulating units are not operated at full load all the time
like a base-load plant. Instead they would come on line and carry an
amount of load dictated by system operator. As system load rises, at
first the regulators would take it but that resulted in system frequency
dropping as the regulating units are loaded down. Then the sysop would
call one of these non-regulating unit and ask them to pick up more load.
When they did so, it took load away from the regulating units and
system frequency rose back again. Since the regulating units didn't
have to change their settings, they all gain/shed load simultaneously.
You adjust one or two plant's output and all the regulating units can be
left alone (well, most of the time anyway).
We have load shedding too, but that's considered a bit drastic. In the
days before deregulation, we too would consider heat rate and fuel costs
(combined into simply marginal cost for any given unit). When you owned
all different forms of generation and were responsible to a regulator to
act prudently, you would operate your mix of plants to get the lowest
overall cost.
With deregulation it's up to each generating company to bid a price they
can afford sell at and that will still win them some bids. But in times
of high demand, price isn't set solely by what it costs the generator to
create the power. If a generator is pretty sure his power is needed, he
can bid a higher price and still win. In times of low demand, plants
with high fuel costs end up bidding a price that doesn't win so they
don't put onto the grid.
daestrom
P
Pieyed Piper
How utterly pathetic you are.
Whatsa matta, little ho? Is your economy going into the crapper?
Did you run up the debt so high that the whole world around you MUST be
to blame?
BUAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHAHA!
I hope you rot under an expressway overpass, with a 'will suck for
food' sign in your hand.
You sound like some meth head refused to pay you for your slut
services.
Sorry, ya little retarded bitch. I do not partake in meth.
You sure seem to know a lot about it, however.
P
Pieyed Piper
Years ago they bought a lot of such clocks for use in all the buildings
at work. *After* they bought them and installed them, they found out
that such clocks don't work very well in commercial buildings with a lot
of steel. Such radio clocks are not all they're cracked up to be sometimes.
Now we just use the time on the PC since they all synch with a
time-server that in turn syncs with nist.gov.
For the data-acquisition computers, that aren't allowed to be tied to
our business network or internet, we put a GPS antenna on top of the
building and tie the receiver into the DAS system.. Some folks laugh
and ask if we're expecting the building to move much
daestrom
daestrom
GPS is the de facto standard in real network environments. It arrives
your clock at less than 0.01 second off NIST.
The time server cannot get you any closer than about 0.2, and that is on
a good day.
The MODEM based, land line hookup to NIST will get you within about 0.1
consistently. That is because it sends and receives several
transactions, and then compensates its sent data strings to adjust for
your distance from the server. The online time servers do not perform
this function, and then there are also errors introduced by the number of
hops between you and the time server.
J
James Sweet
Yeah the low frequency signal is blocked by a lot of things. I've heard
you can rig up an external antenna and couple it inductively to the
antenna in the clocks, I've always been able to find a suitable location
to place the ones in my house though so I've never tried.
K
krw
AlwaysWrong once again proves his name. Because you haven't seen it
must not exist. What a dim bulb you are, DimBulb.
I don't embellish the fact that you're AlwaysWrong. Can't.
AlwaysWrong, so wrong, always.
K
krw
What's wrong, AlwaysWrong? Am I making the poor baby cry over
mommy's spilled hamper?
K
krw
His mommy had no live born children. SHe does have one smelly hamper
though.
K
krw
Oh! More threats from DimBulb! Keep it up, you're gaining friends.
P
Pieyed Piper
And yet your claim that they are off by several minutes per month is
accurate?
Bullshit. You are the one that is off the mark by orders of magnitude
here, you dippy twit.
P
Pieyed Piper
You are lucky that we live in a land of laws, and that I abide by them,
asswipe.
Otherwise, you would be vivisected, by me, and I would make sure that
you felt the pain of it for days before you expired.
P
Pieyed Piper
Come back when you know what the word threat means.
Someone declaring their opinion of "what you need" is NOT in any way,
NOR will it ever be, in any way, a threat.
D
Dori
krw said:
So that's where DimBulb's mother hides her methamphetamine, the hamper.
