Home Products About Us Resources Contact NEWS & STORIES CTM FILTERS LOWER PM MOTOR DRIVE INVESTMENT Lower the capital investment (CAPEX) of your motor drive system. Avoid costly derates, without sacrificing performance. A better solution exists today. CTM HighSine™ & FlexSine® Filters Terminology: VFD (THD OUT): The total harmonic distortion... READ MORE FILM CAPACITORS VS. ELECTROLYTIC CAPACITORS Film Capacitor Advantages CTM Magnetics utilizes high-reliability poly-film capacitors. Compared to the electrolytic capacitors used in our competitors’ filters, CTM's film capacitor advantages include higher temperature ratings, higher surge voltage ratings,... READ MORE IMPACT OF CABLE CONNECTION LENGTH ON HARMONIC DISTORTION The Problem With Cable Length Long cables increase harmonic distortion for the overall motor drive system (figure 1). CTM discovered the effect of cable lengths on harmonic distortion through customer provided field data. Due to the additional noise generated... READ MORE THE BASICS OF PASSIVE HARMONIC FILTERS Introduction: Passive harmonic filters are commonly used on the input side of motor drive systems. Their purpose is to mitigate the amount of harmonic distortion produced by variable frequency drives (VFDs). If this harmonic distortion is left unaddressed it can... READ MORE HIGH FREQUENCY FILTERING FOR HIGH SPEED MOTORS High Frequency Motor Applications Require Extra Filtering High frequency motor applications lead to higher harmonic distortion for the entire motor drive system. To account for this one can either reduce the harmonics by derating the VFD, increasing the drive... READ MORE SEALED CONTACTORS PROTECT OUTDOOR HARMONIC FILTERS Sealed Contactors Protect Outdoor Harmonic Filters Many harmonic filters use NEMA 3R outdoor cabinets in blowing dust or high humidity environments. A harmonic filter awaiting installation in the field for 30 days can collect enough dust on the contactor to... READ MORE ADVANTAGES OF CTM LIQUID COOLED TECHNOLOGY Customer Case Studies: Customer Case Study #1: Military Application CTM Magnetics engineered the highest power density solution of it's kind in order to solve a power conversion problem no one else could. Now, CTM parts are used on all DDG 1000 class US Naval... READ MORE APPLICATION OF SINE WAVE FILTERS WITH HIGH-SPEED, HIGH POWER MOTORS Decreases in permanent magnet synchronous motor (PMSM) costs are leading to increased utilization in high power applications due to benefits in energy efficiency, partial load efficiency, and decreased motor size. Typically, low pass sine wave filters are used to... READ MORE GRIDHAWK® SERIES ADVANTAGES GridHawk Passive Harmonic Filters CTM’s GridHawk® series passive harmonic filters boast several key advantages over market standard harmonic filters. These advantages include: High Grid Voltage Survivability GridHawk® filters are unique in that they are built... READ MORE CTM SINE WAVE FILTERS DON’T CREATE COMMON MODE NOISE Common Mode Noise Protection Conventional sine wave filters introduce a substantial amount of common mode noise. Common-mode (bearing) current can have disastrous effects on induction motors, leading to electric fluting and premature bearing failure. As a... READ MORE THE BASICS OF REACTORS Introduction: In order to understand the basics of reactors, we first need to look at how motor drive systems work. Motors that operate on alternating current need special power supplies that deliver power to start and stop the motor smoothly. If the motor were to... READ MORE MICROGRIDS GROWING BEYOND EXPECTATIONS Microgrids are Growing Washington state received $7 million from the state's Clean Energy Fund, which has been earmarked to improve the efficiency, security, and reliability of Washington's electrical grid. A portion of the grant is being applied to build a microgrid... READ MORE « OLDER ENTRIES SMALL / QUIET / EFFICIENT / RELIABLE STOP TRYING TO MAKE SILICON STEEL "WORK" CONTACT US  480.967.9447  710 W GENEVA DR TEMPE, AZ 85282 CONTACT US QUALITY POLICIES i CTM Ethics Policy i CTM Conflict Free Policy i REACH and RoHS Declaration i CTM Limited Warranty SIGN UP FOR THE CTM NEWSLETTER Get industry news, updated resources, and product updates delivered straight to your inbox. SUBSCRIBE CTM Magnetics © 2021