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This site offers an interactive introduction to electric circuits covering the basics of circuits and leading up to conductors, insulators, switches, and circuit diagrams. Easy to use with bright colors, The Blobz Guide to Electric Circuits presents the perfect introduction to circuits for the elementary student. Students follow Bob and the other Blobz through five lessons on circuits. Each lesson begins with background information, moves to an activity using drag and drop, and then ends with a quiz. 

There is no better way of learning about circuits than to get out the wires and play. But this is a good resource that helps you teach about circuits and how to build them. Good as an introduction to the topic. http://ictmagic.wikispaces.com/Science

A science resource about electrical circuits. Build a lots of circuits based on instructions. http://ictmagic.wikispaces.com/science

A good flash-based resource about electrical circuits. Users are show information and given tasks to complete. http://ictmagic.wikispaces.com/Science

A good interactive resource with information and activities about making electrical circuits. http://ictmagic.wikispaces.com/science

ACREL ADW220 WIRELESS MULTI CIRCUITS ENERGY METER ADW220 wifi smart energy meter 3 phase is mainly used for measuring the full electric parameters of multiple three-phase circuits, which can be connected to up to four three-phase circuits with one main module. Can directly or indirectly measure voltage and current, power, power factor, phase Angle, unbalance degree, harmonics and other parameters.Optional switch 8AI4AO, temperature 12NTC, Leakage current 4L and wireless communication module.

1. The role of sf6 gas density meter and density relay The so-called density refers to the mass per unit volume of a specific substance under specific conditions. The SF6 pressure gas in the SF6 circuit breaker is sealed in a fixed container. It has a certain density value under the rated pressure at 20℃. Within the range of various allowable conditions for the operation of the circuit breaker, although the pressure of SF6 gas changes with temperature, the density value of SF6 gas is always the same. Because the insulation and arc extinguishing performance of SF6 circuit breakers depends to a large extent on the purity and density of SF6 gas, the detection and density monitoring of SF6 gas purity is particularly important. If an ordinary pressure gauge is used to monitor the leakage of SF6 gas, it will be difficult to distinguish whether the pressure change of SF6 gas is caused by the actual leakage or the change of the ambient temperature. In order to achieve the purpose of frequent monitoring of density, SF6 circuit breakers should be equipped with SF6 gas density meters or density relays. The SF6 gas density gauge meter is for monitoring, and the density relay is for control and protection.

"Superb adventure platform and puzzle game which teaches about electricity and electrical circuits, designed by the engineering department at the University of Cambridge. Play in your browser or download from Steam."

Like Garcia, teachers across the country sometimes must travel circuitous paths to use online resources in the classroom. In the interest of child safety, individual schools and entire school districts often install content filters that aggressively block

Advantages of CNC EDM Spark Erosion Machine 1: The CNC spark erosion machine has designed two side repair programs, the rectangular with sharp edges and corners adopts the flat-bottomed square side repair plan, and the round or multi-curved ellipse adopts the flat-bottomed round side repair plan. During the side repair process, the electrode moves and feeds towards the workpiece at an angle. At this time, the tool electrode moves from the center to the outside, from top to bottom, and is automatically controlled by CNC, that is, the three-axis linkage. This kind of movement accomplished by CNC EDM spark erosion services machine is not easy to accumulate carbon, easy to remove chips and exhaust, will not cause arcing, and has high production efficiency. 2: CNC spark erosion machine X-axis lateral processing of opposite molds, high mold clamping accuracy, and productivity can be much higher than that of Z-axis downward processing. 3: CNC EDM spark erosion machine adds special control to the control circuit. When arcing or false short circuit occurs, the pulse power is immediately cut off, and the energy supply to the cavity is stopped. The electrode temperature will not continue to rise, reducing the occurrence of fire. 4: CNC EDM spark erosion machine adopts a complete low-voltage pulse method after high-voltage breakdown. The pulse width is equal. Practice of EDM machine application has proved that this pulse method further reduces the loss of the tool electrode, the processing surface is rough and uniform, and the end surface loss of the tool electrode is small . 5: The CNC EDM spark erosion machines by DMNC-EDM, a reliable EDM machine supplier, can use one electrode for rough and fine machining, which saves the manufacturing time and cost of the double electrode, saves the trouble caused by the correction of the fine machining electrode, and shortens the mold manufacturing time. 6: Self-appropriate function, the so-called self-appropriate knife lift, is that