3 PHASE LINE FILTER. 3 PHASE


3 PHASE LINE FILTER. WHOLE HOUSE WATER FILTER RATINGS. CARBON FILTER SET UP.



3 Phase Line Filter





3 phase line filter






    line filter
  • LC noise filter placed in the 50Hz or 60Hz AC power line. Coilers use them between the power supply and the wall outlet to keep Tesla coil hash from getting into the household power lines.

  • A line filter is the kind of electronic filter that is placed between an electronic equipment and a line external to it, to attenuate conducted radio frequencies -- RFI, also known as electromagnetic interference (EMI) -- between the line and the equipment.

  • A device used to suppress noise in a transmission line or cable, caused by electromagnetic interference.EMI is produced by nearby power lines, motors, generators, and other sources.





    3 phase
  • In electrical engineering, three-phase electric power systems have at least three conductors carrying voltage waveforms that are 2?/3 radians (120°,1/3 of a cycle in-phase) offset in time. In this article angles will be measured in radians except where otherwise stated.











3 phase line filter - EMC Filtering




EMC Filtering of Three-Phase PWM Converters: Three-phase Line Filter Concepts and Design for Modern Power Electronics


EMC Filtering of Three-Phase PWM Converters: Three-phase Line Filter Concepts and Design for Modern Power Electronics



In modern Power Electronics systems high switching frequencies are employed to increase power density, but EMC filter components are responsible for a large volumetric occupation of the power system. In some cases the EMC filters required to fulfill EMC regulations cover more than 30% of the total system volume. In a world where space gets expensive, the volumetric reduction of the components in EMC filters is of great importance aiming for reduced dimensions. This work proposed modeling techniques for the generation and propagation of conducted emissions in three-phase converters and filter concepts aiming to meet EMC standards and reduce the volume of the EMC filters. Optimizing EMC filters requires several steps to be performed, which are described here focusing on three-phase PWM converters. Finally, a discussion quantifying how much filters strongly impact the volume of three-phase PWM converter systems is preformed.










76% (5)





Koopa Stomp: Taladis vs Tank




Koopa Stomp: Taladis vs Tank





Taladis stood waiting as the surroundings of the Pit became like a second-skin to him. The dark cat reached up and touched the tip of his nose as he growled. The cold green eyes drifting to the water momentarily, before he looked up at Tank. He raised his left hand up - with his right hand back closer to his body. His right foot on the backstep, and his left foot at the front-step. Tal started to move towards Tank, keeping his distance and starting to circle the man. The dull expression of the cat telling no story at all.

Tank looked around the pit at the crowd and frowned. There was something strangely familiar about this setting, but he couldn't quite place his finger on it. It didn't matter much anyway, his attention was quickly shifted back to the black cat as he waited for the fight to begin. When he saw Tal take up a combative stance, he did too, though he purposely left himself open to a strike to his face hoping to bait him in for a counter blow. He circled in the same direction, keeping a little distance between them. His mind filtered out the background noise as he focused intently on the fight at hand.

Taladis had been moving to keep Tank at a distance, or at least keep him within his striking range. By Tank circling with him in the direction he was moving, Tal's power was in the proper place. Almost immediately, the dark cat moved forward on his left foot and twisted his hip as he jerked a rightlow kick shin first towards Tank's upper left thigh. Tal's hands held high as he threw the kick, and whether or not he landed - he would leap back and immediately started circling Tank again.

Tank had left himself open for a facial strike not a leg strike, so he wasn't quite expecting that. He tried to shift a bit to ease some of the pressure of the blow, but it still landed with a fairly solid hit and causing him to stumble back a few steps. Kicking. He hated kickers. It was going to be tricky getting past his long reach, but he took up circling again if there wasn't a follow up strike. His focus was now watching the legs for sign of the next attack as he tried to slowly and subtly bring himself in closer with each step to the side.

Taladis hadn't followed up at all after the initial strike. Taladis simply growled, as he let his hands drift slightly. He'd opened himself up just a bit, as he continued to move towards Tank's left - Tal's right. He walked in the water with a splashing sound, it didn't seem to bother his movement too much. Though, he'd thrown no strikes in this moment, seemingly just waiting for Tank to come in.

Tank had come in just outside of reach for his arms to strike, and in the final moment he would close that gap with a quick step forward as he swung his right fist carelessly for the side of Tal's head, however it was intentionally careless to throw him off defending the real strike that was coming in with his left hand aimed right for the sternum. If his right hand hit, the blow would be mostly superficial, a jarring knock but nothing more serious than a slap to the face would give. However, the stealth strike would all depend on what Tal had in mind for a counter to the initial.

Taladis was watching Tank's movements very carefully as he continued to circle. When Tank had jerked to the side with that right hand, Tal fully expected a bolo punch. His hands moved up quickly as he deflected the strike, but as he moved back from the bolo punch he had already started to shift his hips to throw a left low kick. He was caught halfway through the swing and Tank's basic uppercut into his sternum had nearly put Tal down right there. A loud gasp came from the black cat, as he moved backwards away from Tank - and out of the man's punching range. Tal was visibly winded from the punch, though his standing guard was still full, as far as bystanders could tell.

Tank was pleased as his little plan worked, though as Tal stumbled out of range it thwarted any attempts at a follow up strike. He just grinned to himself now mostly as he studied his victim lining up his next strike. He wasn't about to let the cat catch his breath before he tried to make a move, so coming in again for another quick strike he swung out with his left hand first this time, but unlike the last there was no follow up. This one seemed more aimed, more intent on landing the hit than the previous, and it was aimed right for Tal's temple. If he missed it would certainly throw his own balance off quite a bit as he had put his weight behind the blow.

Taladis had immediately moved back when Tank had come at him. The scene was an odd one, with Taladis backing up with his hands up - but not quite and Tank swinging wild. Tal's guard had taken the strike, and after the strike had been thrown - Tal push back off of Tank with his own body. Immediately after he jerked his body, his hips twisting entirely as his left leg shot up. His knee bent and then twisted, as he threw the head kick well - shin first at the side of Tank's head.

Ta











PCM - Chrysotile Asbestos




PCM - Chrysotile Asbestos





Captured image showing microscopic asbestos fibers and other ambient particles under 400x magnification using Phase-Contrast Microscopy (PCM) optical illumination method.

Although certain technical fiber-counting rules prohibit identification of specific fiber types using the PCM technique, this example depicts a reference slide with a known type of fiber; in this case, chrysotile asbestos fibers. Note characteristic splitting, wavy/flexible lines, narrow width, and splayed ends of the fibers (fiber bundles).

The visible "fibers" in the image are actually bundles of yet further bundles of "fibers". One of the more distinguishing features of asbestos is its incredible capability to subdivide into increasingly smaller and thinner fibers (far beyond the resolution of this microscopy method); until the fiber reaches its ultimate particle size: the theoretical, individual unit fibril (on the order of angstroms and nanometers). The minute size is also why asbestos can infiltrate into microscopic and cellular-level areas of lungs and other bodily systems.

Among other scientific applications, PCM is a fairly common, standard analytical technique utilized for testing air monitoring samples for airborne fiber concentrations pertaining to asbestos-related work, such as projects related to: abatement, repair, clean-up, worker exposure, ambient background, etc. Further, PCM equipment is relatively inexpensive, portable, and sturdy enough that it can be setup directly on many project sites, a particularly convenient advantage. This testing method is currently so routine, that if one is familiar with an asbestos abatement work project that has occurred or will occur, it's quite likely that PCM air monitoring is involved.

However, while used as an acceptable standard method for determining worker exposure levels to airborne fiber concentrations and for "clearance" of post-abatement work areas, there are a number of significant issues regarding over-reliance of PCM for airborne asbestos detection.

One main cause for concern are serious limitations of PCM's optical resolution. Unknown quantities of asbestos fibers may not be discernible using PCM, but are easily detected using more advanced and asbestos-specific imaging techniques such as transmission-electron microscopy (TEM). PCM may be considered as a "screening" method and possibly inadequate for truly accurate analyses of airborne asbestos fiber concentrations; another debate that typically boils down to Health vs. Cost.

Also depicted, partially shown, is a standardized Walton-Beckett graticule with incremental graduated x-y axes measured in micrometer units; diameter is approx. 100-µm across. Encircling the graticule area are measured scale markers in 3:1 length-to-width aspect ratio for visual reference. The green color is from a green-tinted light interference filter.











3 phase line filter








3 phase line filter




Pyle PLBASS8 8-Inch Super Slim Active Subwoofer






This Pyle low-profile, 600-watt subwoofer system packs killer thumping bass in a slim package. Works great in any space, especially under-seat installations – the small footprint means space is not a problem with the PLBASS8. This model accepts both low level RCA and high level speaker line inputs. It has a remote for bass boost level control within the comfort of your vehicle. A low pass filter prevents annoying subsonics from distorting your signal. And thermal and overload protection extend the life of your product and ensure the safety of your vehicle. Weighs 10.5 lbs.










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