By Cyrielle Marjolaine. Motor. Publised at Wednesday, January 10th 2018, 00:18:44 AM. The drive is a current source in the constant torque region and adds no additional phase lag. In the constant power region however, the drive is a voltage source so it introduces an additional 90 degree phase lag. The total phase lag now is 180 degrees, which is a setup for a sustained and building motor oscillation. This oscillation is commonly called mid-band instability or mid-band resonance.
By Sasha Sara. Car Wiring. Publised at Monday, February 12th 2018, 10:19:23 AM. What professional teams do, and it is just as important for you to do, is, once they determine the wiring layout and have measured the wire lengths for each run, they just make two or more of the wires.
By Alix Loane. Car Wiring. Publised at Saturday, January 06th 2018, 22:49:51 PM. Wire and cable sizes are classified by the maximum amperage that they can carry safely. A complex network of wires runs through the car. To avoid confusion, each wire is colour coded (but only within the car: there is no national or international system of colour-coding).
By Valentine Sybille. Car Wiring. Published at Thursday, January 11th 2018, 08:14:17 AM. I cannot tell you how many teams have connected these wires thinking purple must go with purple. It does not. Note the location of each wire on both sides of the original connectors and identify them with markings before you cut off the old connector.
By Bertille Solange. Circuit. Published at Thursday, January 11th 2018, 05:22:15 AM. Resistors, capacitors, and inductors are the fundamental components of electronic circuits. In fact, all electronic circuits can be equivalently represented by circuits of these three components together with voltage and current sources.
By Charlotte Myriam. Motor. Published at Thursday, January 11th 2018, 02:53:10 AM. Eddy current and hysteresis heating are collectively called iron losses. The former induces currents in the iron of the motor while the latter is caused by the re-alignment of the magnetic domains in the iron. You can think of this as “friction heating” as the magnetic dipoles in the iron switch back and forth. Either way, both cause the bulk heating of the motor. Iron losses are a function of AC current and therefore the power supply voltage.
By Sasha Sara. Car Wiring. Published at Wednesday, January 10th 2018, 14:52:16 PM. Most car handbooks and service manuals include a wiring diagram which can be difficult to follow. The colour-coding, however, is a useful guide to tracing wiring.
By Valentine Sybille. Diagram. Published at Wednesday, January 10th 2018, 13:50:25 PM. A first look at a circuit diagram may be confusing, but if you can read a subway map, you can read schematics. The purpose is the same: getting from point A to point B. Literally, a circuit is the path that allows electricity to flow. If you know what to look for, it’ll become second nature. While at first you’ll just be reading them, eventually you will start creating your own. This guide will show you a few of the common symbols that you are sure to see in your future electrical engineering career.
By Sasha Sara. Circuit. Published at Wednesday, January 10th 2018, 13:48:10 PM. Ohm’s law states that the current through a conductor between two points is directly proportional to the potential difference across those two points. It means that more the resistance lesser current would flow. I=V/R This would apply to any component of a circuit. For example conductors would increase the current flow and the inductors would decrease it.
By Valentine Sybille. Motor. Published at Wednesday, January 10th 2018, 06:56:10 AM. The power output decreases with speed because of the constant-torque loss due to detent torque and other losses. The same effect causes a slight decrease in torque with speed in the constant torque region as well. Finally, there is a rounding of the torque curve at the corner speed because the drive gradually transitions from being a current source to being a voltage source. The drive limits current to the motor below the corner speed and thus is a current source. Above the corner speed, the motor’s inductive reactance limits the current and the drive becomes a voltage source as it applies all of the power supply voltage to the motor.
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