Chung-Sook pulls a bundle of wires stuck under the cabinet. As soon as she does -- The cabinet smoothly rolls to the side pretty much on its own, as if it’s set on rails. It moves out of view to reveal, to Chung-Sook’s great astonishment -- A DARK STEEL DOOR hidden behind...
Product How-to: Improving voltage regulation without remote sense wiresGreg ZimmerVoltage Regulation Remote Sense
How many PA4000 input modules do I need to test various types of wiring configurations commonly found in single and three phase systems? 答案: Blondel's Theorem: Number of Watt-meters required; In general, the Number of Watt-meters Required = the Number of wires -...
to the simple act of ejecting the "Star Wars" disc from your PC. Despite our familiarity with its effects, many people fail to understand exactly what electricity is -- a ubiquitous form of energy resulting from the motion of charged particles, like electrons. When put to the question, even...
Off-grid solar is a great way to be energy efficient, but it needs proper planning. Learn how to size your solar array with our expert tips.
Homes in North America use “split phase 240 volt current.” That is, each of the hot wires carries 120 volts, for a total of 240 volts. When the loads on the two hot wires are imbalanced (as they usually are), the difference is carried back to the power supply via the neutral wire...
It turns out that the power company uses theEarthas one of the wires in the power system. The planet is a good conductor, and it's huge, so it makes a handy return path for electrons. "Ground" in the power-distribution grid is literally the ground that's all around you when you are...
Rebecca is the lead safety reporter and in-house expert for SafeWise.com. She has been a journalist and blogger for over 25 years, with a focus on home and community safety for the past decade. Rebecca spends dozens of hours every month poring over crime and safety reports and spotting tr...
These integrated lights are the same size as fluorescents. One can suspend these fixtures from wires. It is also possible to surface mount these fixtures. So, installation is entirely customizable. Plus, the brightness of shop fixtures is better than the tube ones. These fixtures offer long lam...
21. Phase (PH.) - Phase is the indication of the type of power supply for which the motor is designed. The two main categories are single phase and three phase. Single phase means that only one voltage waveform is applied to the motor, while three-phase motors have three wires delivering...