White Papers

Featuring EMC and power quality solutions, technical articles, industry information, and success stories.

FINHRM5C Passive Harmonic Filter

The new Enerdoor FINHRM5C filter is the most advanced and innovative passive harmonic filter available with excellent attenuation of current harmonic distortion and overvoltage spikes.  This filter features a compact size and is one of the smallest…

CE Certification

Enerdoor assists customers through a portion or the entirety of the CE Certification process. We work on-site with customers to find real time solutions offering recommendations and suggestions to minimize RF interference that may be causing…

Pre-Compliance CE Testing Saves Time and Money

CE Certification is required when shipping machines overseas and today on average 60-70 % of products fail first time EMC testing. EMC issues within an EMC lab can cost customers tens of thousands of dollars in re-design, re-manufacturing, and…

OEM Equipment Using VFDs and Servo Drives

This white paper discusses Enerdoor’s approach when customers need to select an EMI-RFI filter in conjunction with single or multiple variable frequency drives (VFDs) and servo drives. Following the VFD and servo-drive specs is not always sufficient…

Motor Protection from Overvoltage Spikes

This white paper discusses Enerdoor’s approach with customers in need of protecting motors against overvoltage spikes, widely known as dV/dt. Voltage wave reflection is a function of the voltage rise time (dV/dt) and the length of the motor cables.…

Motor Protection - The Enerdoor Snubber

This white paper discusses Enerdoor’s newest product the FIN47SNB snubber and how it benefits markets facing voltage wave reflection issues due to the use of variable frequency drives (VFDs). It can be challenging for OEMs, system integrators and…

Power Factor Correction

This white paper discusses Enerdoor’s newly developed product, the FINSVG Static Var Generator and how it benefits markets in terms of saving both money and energy using power factor correction.  Unlike capacitor banks, the FINSVG is immune to…

Invisible RF Noise and System Failures

It can be challenging for OEMs, system integrators and distributors to find “invisible noise.” Unwanted EMI and RFI noise can degrade the performance of communication systems and cause false triggering and faulty readings in sensor circuits. Such…

Ground Noise Reduction

The Ground Noise Reduction filter is a new Enerdoor product designed to improve the quality of the PE ground inside machines. Today’s industrial equipment has a combination of switching devices such as power supplies, servo drives and variable…

EMI-RFI Parallel Filters

This white paper discusses Enerdoor’s EMI-RFI Parallel Filter and how it fits into our application centered approach when introducing unique products to solve customer specific or market driven needs. For the past 25+ years, this hybrid EMI-RFI…

EMI-RFI Filters and Material Handling Equipment

This white paper discusses a recent Enerdoor success story using an EMI-RFI filter in conjunction with material handling equipment that used VFDs and servo drives to control various motors within the system. Material handling equipment manufacturers…

EMI-RFI Filters and Packaging Equipment

Packaging equipment manufacturers are often challenged to achieve CE Certification, due to the fact that the drives emit high frequency noise that often causes malfunctions with sensors, encoders, HMI screens and e-stops within the system, as well…

EMI-RFI Filters and Glove Box Systems

This white paper discusses a recent Enerdoor success story using an EMI- RFI filter in conjunction with glove box systems. Glove box systems often use thermocouples in order to constantly monitor the temperature variation within the system. Today,…

Laser Equipment and CE Pre-Compliance

Laser equipment often uses AC/DC power converters in order to rectify and control the laser and are used in several different markets, including medical, machine tools, microelectronics, marking and advanced processing. Laser manufacturers are often…

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