Rohde & Schwarz GmbH & Co      Germany
Nov 20, 2012 Available for RS SMB100A microwave signal generator, Harmonic Filters make it possible to achieve harmonic suppression of more than -50 dBc over frequency range of 150 MHz to 40 GHz. At frequencies below 3 GHz, it is possible to achieve -58 dBc. Filter options include R&S SMB-B25 for 20 GHz model and R&S SMB-B26 for 40 GHz model. In measurements with wideband receivers, filters prevent harmonics of wanted signal from entering receive band and affecting measurement.

Schaffner EMC, Inc.    Edison, NJ 08837
Sep 14, 2012 ECOsine™ Active products provide system with opposing corrective current immediately, simultaneously compensating harmonics, phase shift, and load-unbalance. Filters dynamically adapt to changing grid and load situations for optimal compensation performance. While FN3420 series with 50 or 100 A of compensation current is designed for 3-wire systems, FN3430 in 4-wire technology can be used for networks with separate neutral conductor (30 and 60 A).

MTE Corp.    Menomonee Falls, WI 53051 9013
Aug 23, 2012 In addition to 83-1,200 A models, Matrix AP Series includes 6-66 A units. All 6-103 A models utilize single 3-phase capacitor. Available on all 6-1,200 A filters, Capacitor Contactor Option 002 disconnects capacitor bank, essentially eliminating leading power factor under light or no-load conditions. Offered in open panel, NEMA 1/2, and NEMA 3R models, UL/cUL listed passive filters help extend service life cycle of electrical equipment.

Magna-Power Electronics    Flemington, NJ 08822
Jun 07, 2012 Designed as companion products to switched mode DC power supplies, Model HN500-24 produces 24-pulse waveforms for 500 kW systems containing two 250 kW MT Series modules, while Model HN1000-48 produces 48-pulse waveforms for 1,000 kW systems containing four 250 kW MT Series modules. Units help maintain power quality at acceptable levels, and eliminate families of harmonic components by multiplying number of input phases with specially wound magnetic components.

MTE Corp.    Menomonee Falls, WI 53051 9013
Mar 30, 2012 Matrix® AP Harmonic Filter provides harmonic mitigation for improved power quality and energy efficiency. With standalone efficiency exceeding 99% throughout load range, product adapts its impedance in response to changing loads. Design minimizes capacitor use and eliminates need for resistors, consequently lowering heat generation and negating need for fan. Filters come in open panel and NEMA 1/2/3R versions and are UL/cULS listed.

MTE Corp.    Menomonee Falls, WI 53051 9013
May 24, 2011 Supplied in wall mount configuration, 480 V Matrix PureSine® Active Harmonic Filter is used for coordinated variable load PFC, phase imbalance, and harmonic mitigation. Modular unit operates up to 51st harmonic with up to 12 harmonic orders selected individually. Supporting parallel operation, device features full-time DSP control system, shunt connection to facilitate maintenance, and LCD control panel with both English and Spanish text.

Schaffner EMC, Inc.    Edison, NJ 08837
Apr 17, 2009 In addition to providing real-time mitigation of harmonic currents up to 50th order, ECOsine Active Filters immediately compensate for voltage dips and reactive power surges. Units continuously measure and analyze disturbances in power network and provide exactly opposite compensation current, responding in less than ½ ms. Filters are available in 3-phase/3-wire as well as 3-phase/4-wire configurations for 480 and 400 V grids, respectively, and with rated compensation currents from 30-300 A.

Schaffner EMC, Inc.    Edison, NJ 08837
Jul 22, 2008 ECOsine(TM) load-applied passive harmonic filters are suited for 3-phase power electronics with 6-pulse rectifier front ends. With total harmonic current distortion of under 5%, products guarantee compliance with IEEE 519 and other international power quality standards. Two ranges are available, one for 380-500 V, 50 Hz grids (FN 3410 series) and one for 440-480 V, 60 Hz systems (FN 3412 series). Plug-and-play concept facilitates installation, wiring, and commissioning.

Staco Energy Products Co.    Dayton, OH 45403 1314
May 22, 2008 Using power electronics, StacoSine® Filters monitor non-linear load and dynamically correct every harmonic order from 2nd to 31st. Through injection and cancellation process, sine wave is restored and distortion is reduced to less than 5% THD, meeting IEEE 519 standards. Models are available for 208-480 Vac, 3-phase installations with adaptive system frequency of 45/65 Hz, and 120/240 Vac control power. Rated from 25-200 A, units come in wall mount or freestanding NEMA 1 enclosures.

Schneider Electric    Palatine, IL 60067-7399
Jan 17, 2008 Square D® AccuSine® PCS Active Harmonic Filter (AHF) injects harmonic current to cancel harmonic current in the electrical distribution system to reduce harmonic level results. Including Telemecanique® Magelis® XBT-G 3.8 in. graphical touchscreen terminal and compact HMI terminal, configurable filter is available in 50, 100, and 300 A ratings with UL, CSA, CE and ABS certifications.

National Semiconductor Corp.    Santa Clara, CA 95051-0695
May 11, 2006 Available in TSSOP-14 package, LMH1981 multi-format video synchronization separator performs all necessary sync separation to generate low-jitter horizontal and vertical sync signals for NTSC, PAL, SECAM, standard-, and high-definition (HD) video formats. It features timing outputs needed for any video system and accepts bi- and tri-level sync video inputs. Unit also features 50% slicing for separation of signals that vary in amplitude, offset, and noise.

Danfoss VLT Drives    Loves Park, IL 61111
Aug 17, 2005 Advanced Harmonic Solutions packages combine VLT® Series variable frequency drives with AHF Series filters. To reduce total harmonic current distortion (THiD) to less than 5%, AHS 005 package matches VLT Series drive with AHF 005 unit. Filters also suppress total harmonic voltage distortion. Also available, AHS 010 package reduces THiD to less than 10%. AHF Series housings integrate into existing panel space and require no balancing or routine maintenance.

TCI (Trans Coil, Inc.)    Milwaukee, WI 53224
Jun 01, 2005 HarmonicGuard® Series HG7 Drive-Applied Harmonic Filters limit harmonic distortion at input terminals to levels between 5 and 7% TDD (typ) and consistently hold TDD levels at full and half loads. Product, offered in multiple package options, contains capacitors rated for harmonic duty and fits into motor control centers. Use of reactor technology eliminates nuisance tripping. With HG7, voltage drop on dc bus of variable frequency drive is under 2%.

Danfoss VLT Drives    Loves Park, IL 61111
Feb 03, 2004 Series AHF 005 offers harmonic reduction despite background disturbances, such as phase unbalance and voltage distortion. Compact housing can be integrated into existing panel space, making them suited for retrofit applications. Filters feature cable-in/cable-out installation and require no balancing or routine maintenance. One filter module can be used with several variable frequency drives.