(i.e. the nanoseconds that you are all making fun of)
My intention is not to mislead, but to inform.
My intention is not to mislead, but to inform.
At about the same time you wrote that, on twitter you wrote:
"On the supply side, take a typical coal plant, which if outfitted with SDE will output almost double the energy while burning the same amount of coal. Same with natural gas, nuclear etc. because they are all steam."
https://twitter.com/doerfler/status/1138117446555095041
FYI typical coal plant is around 40% efficient.
US is losing 5% of electric energy in the grid:
https://www.eia.gov/tools/faqs/faq.php?id=105&t=3
Yes, please go on about how this self reported utility data using 15 minute increments (at best) can accurately reveal the waste that occurs. To believe that such inaccurate data can provide a precise number on anything is what is laughable
I wonder if I can find any quotes about how nobody needs a microscope because it is pointless to see anything more than with the eye...
Electricity flows in real time. RMS does not measure in real time.
You must provide better argument than just baseless statement. Where's proof that grid efficiency numbers are false? What are actual numbers?I have posted reports on this forum that show precisely this. No need to spam with repeats, just go find it and look.
Yes, please go on about how this self reported utility data using 15 minute increments (at best) can accurately reveal the waste that occurs. To believe that such inaccurate data can provide a precise number on anything is what is laughable
I wonder if I can find any quotes about how nobody needs a microscope because it is pointless to see anything more than with the eye...
Further, let's take one cycle of AC power. The waste that occurs in that single cycle is unknown to you using the 15 minute increment measurement. In fact, in your 15 minute measurement frequency, 3.34 million cycles have passed. That is a staggering amount of time where nothing is known about.
These are facts. Again, your comprehension of how is irrelevant. Clearly my engineers have a much better understanding of electricity than you or ogden do.
In other words, precision is not important in your world.
..
Averages do not cut it in power flow, sorry. This is a time tested reality for any science.
You do not have the technological capability to convert analog to digital in 24bit resolution. SDE does.
Great! SDE samples 4096x per half cycle. So..... you are pretty much making my point.
Great! SDE samples 4096x per half cycle. So..... you are pretty much making my point.
It is 4096*60*2 = 0.49 MSPS. Suddenly it is not nanosecond level, nor 6 nanoseconds level. It is not even microsecond level, it's 2 microseconds. Truly amazing how "fluid" are specs your product.
Averages do not cut it in power flow, sorry.
SDE samples 4096x per half cycle.
SDE samples 4096x per half cycle.
That's 2 * 4096 * 60 Hz = 491 kSamples/s.
How does that line up with your stated 6 ns sampling interval?!
26 channels, each with MHz frequency, 24 bit resolution
QuoteNanoseconds are incredibly laughable indeed. You do not need 0.5GHz bandwidth to measure distortion of <=60Hz signal in a cables that barely can transmit anything above 1MHz.This really is my favorite quote. In fact, congratulations, you have made it onto our "Wall of Edison," the place where we put quotes from self-pronoucing intelligentsia that are plain moronic.
In fact, in your 15 minute measurement frequency, 3.34 million cycles have passed.
26 channels, each with MHz frequency, 24 bit resolution
The technology is sampling/deriving 26 parameters using current and voltage samples in 24 bit resolution at MHz sampling rates on each phase, neutral and ground, through a precision, software controlled oversampling methodology.
How many channels do you record/process, each of them at which sampling interval and bit depth?
QuoteNanoseconds are incredibly laughable indeed. You do not need 0.5GHz bandwidth to measure distortion of <=60Hz signal in a cables that barely can transmit anything above 1MHz.
This really is my favorite quote. In fact, congratulations, you have made it onto our "Wall of Edison," the place where we put quotes from self-pronoucing intelligentsia that are plain moronic.
We don't even have to get into the discussion whether there is value in any of these (they all seem much faster than necessary to achieve your purpose, and the 24 bit ADC resolution is even worse overkill).
Fast sample rate indeed seems like unnecessary overkill due to limited frequency content of AC mains current/voltage "signal", even when heavily distorted. I can't say the same about 24 bit ADC. Meters shall meet their accuracy in wide dynamic range. Think of TV in standby consuming 1W, then electric stove consuming 10KW. Consumption of both shall be measured precisely, with specified accuracy.
As an example here's ADC designed for energy meters, 24bits, max 32KSPS: http://www.ti.com/product/ADS131M04
Might I remind you that we are acquiring error free data, so while yes it is only measuring current and voltage, the error free data and calculations allow SDE to receive 24 bit resolution on each of the parameters (i.e. reactive power, phase angle, harmonics, etc.).
Your suggestion that we are using a 24 bit ADC chip is also based on the presumption that AD conversion is separate from the data processing, when in fact it is not, it is all done simultaneously on 26 channels for individual parameters. All 26 channels are measured individually on each phase, neutral and ground, not all together.
No, I don't think you need a wide dynamic range for power factor correction and load balancing. If only 1W of standby power is drawn from my 10kW circuit, power factor corrections etc. just don't matter at all.
If you want accurate total energy, integrating precisely over a wide range of currents may be more relevant. 7 digits still seems excessive?
Note the 32 kHz sampling rate, btw. That's a far cry from even the slowest rate cdoerfler has claimed (1 MHz).