And how is synchronisation achieved? The grid length is fixed and static and thus easy to equalize between sources at the connection point by phase-shifting methods unless some passive power factor correction is requested. In wood the speed of sound varies with grain direction because the transverse modulus of elasticity is as little as 1/20 the longitudinal value. Why is Soulknife's second attack not Two-Weapon Fighting? The speed of electrons is much slower...slower than walking pace. Perhaps people are interested in the answer. How does the Electrical Grid React to Large Changes in Supply or Demand? First of all: I am a computer science student, so I don't have much knowledge of physics. The area of the cross section is 1.9*10^-5 square meters. So the formula for the coaxial geometry turns out to be quite general (note $c=1/\sqrt{\epsilon_0 \mu_0}$). site design / logo © 2020 Stack Exchange Inc; user contributions licensed under cc by-sa. In a circuit one light-second long, does it matter where in the circuit the switch is placed? (The B-field goes like 1/r, so its integral goes to infinity logarithmically at both 0 and infinity). The filler material between the conductors matters too: its electric polarizability (quantified by the dielectric constant $\epsilon$, which is typically 2-5 times the value for free space $\epsilon_0$) slows down the signal speed.

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And how is synchronisation achieved? We added some dead time to each element of the circuit, but we didn't add dead time to the wires of the circuit. So there are two speeds. Both affect the propagation velocity, but dielectric constant is much more likely to be significantly different between materials you might use to insulate a wire. How to consider rude(?) Making statements based on opinion; back them up with references or personal experience. Electric current can give you an idea of how fast electricity may travel. Where does energy in electricity come from? What does commonwealth mean in US English? Or only on aggregate from the individual holdings? Electrical Engineering Stack Exchange is a question and answer site for electronics and electrical engineering professionals, students, and enthusiasts. To calculate the propagation speed, you need to specify the return current path in addition to the "forward" path. You wire the bulbs across the big switch so they pulse as the grid and generator slip into and out of phase sync, trim the throttle to get the pulsing to become very slow, then just as the lights fade out you throw the switch. How exactly does the grid handle small deviations in power consumption? When you open the throttles the rotor eventually settles to a new angle relative to the rotating field such that the torque from the interaction of the fields exactly matches the torque from your drive. Is there a formal name for a "wrong question"? Making statements based on opinion; back them up with references or personal experience. Let's take a piece of copper wire 5 mm in diameter. For most of the copper wire and traces you see, about 60% the speed of light in a vacuum. Can the President of the United States pardon proactively?

How often are encounters with bears/mountain lions/etc? How does linux retain control of the CPU on a single-core machine? I hear that bare speed on a copper wire is still two thirds of light. You want to read about the telegrapher's equations, which in a first lossless approximation yield a speed of propagation $v = 1/\sqrt{LC}$, where $L$ and $C$ are the inductance and capacitance of your circuit. It is also limited by the relative magnetic permeability, \$\mu _r\$ in the wire or closely coupled around it, as this would occur in magnetic components. Do you need something else to calculate the speed? Transferring data at a rate of 100Mbps means we are encoding 100,000,000 bits of data on to the wire every second (ignore fancy encoding techniques that reduce this). Do you need something else to calculate the speed? Much of the local distribution grid is grounded coaxial cable to reduce radio noise and lightning interference, which has insulation. Why did MacOS Classic choose the colon as a path separator? Asking for help, clarification, or responding to other answers. it is proportional to the square root of the frequency. Why this question has so many votes...so broad and overrated. Convey 'is raised' in mathematical context. Thanks for your answer! By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy.