General
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January 9, 2023
Maximize Energy Efficiency & Reduce Costs with CTM Magnetics
Problem: Energy Pollution The ongoing technological development and restructuring of the grid bring about an increased number of sophisticated electrical equipment being installed at all levels of the power system.…
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February 23, 2021
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):…
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February 22, 2021
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…
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February 21, 2021
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…
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February 20, 2021
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…
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February 19, 2021
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…
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February 18, 2021
CTM Sine Wave Filters Don’t Create Common Mode Noise
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.…
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February 17, 2021
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…
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February 16, 2021
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…
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February 15, 2021
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…
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February 15, 2021
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…
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October 27, 2018
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.…