Go to GlobalSpec.com Home
Toolbar   The Engineering Toolbar
The Ultimate Resource for Engineering and Technical Research. (Learn More)

Harmonics and Harmonic Mitigating Transformers (HMTs): FAQs

From Storage Battery Systems, Inc.
 

 
This document has been written to provide answers to the more frequently asked questions we have received regarding harmonics and the Harmonic Mitigating Transformer technology used to address them. This information will be of interest to both those experienced in harmonic mitigation techniques and those new to the problem of harmonics. 1. What are non-linear loads and why are they a concern today? 2. Do different types of non-linear loads generate different harmonics? 3. Why do non-linear loads have low power factors and why is it important to have a high power factor? 4. What is an SMPS and how does it generate harmonics? 5. Can't equipment manufacturers design their products to be free of harmonics? 6. What problems do non-linear loads and harmonics create? 7. Why do 3rd harmonic currents overload neutral conductors? 8. How do non-linear loads create current and voltage harmonics?
Product Announcements
Mirus International, Inc. - Reduce Electrical Pollution from Electrical Motors
Power Utility Companies are focusing on power quality issues related to electronic motor controls. Typical culprits are pumping operations and ventilation fans. If your utility is pushing you to clean... (read more)
Mirus International, Inc. - Harmony™ Series
Harmony™ Series isolation transformers and autotransformers combine very low zero sequence impedance outputs with phase shifting for effective harmonic mitigation. Designed to replace standard... (read more)
Mirus International, Inc. - MIRUS Expanding Sale of LINEATORS in South America
Oil Field Owners in South America are installing MIRUS LINEATOR Advanced Universal Harmonic Filters on Water Injection Pumps and ESP Pump systems. They help improve the Power Quality of local Power... (read more)
Mirus International, Inc. - Neutral Current Eliminator™ (NCE™)
A 3-phase, low zero sequence impedance autotransformer, which when connected near to and in parallel with the harmonic generating non-linear loads (usually connected at the distribution panel),... (read more)
Mirus International, Inc. - Innovation for Harmonic Mitigation Transformers
MIRUS International Inc was the first company to Develop Harmonic Mitigating Transformers that were designed to curb harmonic current distortion in order to reduce transformer heating, and improve... (read more)
Energy Control Systems - Harmonic-Mitigating Products
MIRUS is a leader in the design and manufacture of high efficiency harmonic mitigating products for electrical power distribution systems. Our innovative approach to harmonic mitigation has allowed... (read more)
Dongan Electric Manufacturing Company - K-Factor Transformers for Harmonic Loads
Domestic distribution systems and linear loads operate at the fundamental frequency of 60 Hz. Harmonic content in distribution systems means that there are integer multipliers of the fundamental 60 Hz... (read more)
MTE Corporation - 3rd Harmonic Filters
3rd Harmonic Filters by MTE Corporation will substantially reduce harmonic currents caused by personal computers, electronic ballasts, lighting dimmer controls, uninterruptible power supplies, and... (read more)
Mirus International, Inc. - Onics Series
The Onics HMPC is an outstanding power distribution unit ideal for the raised floor environment. It incorporates MIRUS' patented and proven Harmonic Mitigating Transformer (HMT) technology. (read more)
MTE Corporation - Single Phase Matrix Filter®
MTE Single Phase M1 Matrix Filters reduce harmonics to (12% THID) of total harmonic current distortion on virtually any kind of four pulse rectifier supply. These power supplies are commonly found in... (read more)
Topics of Interest
The harmonic currents generated by non-linear loads will produce voltage distortion as they interact with the impedance of an electrical distribution system. This voltage distortion can easily reach... (Read More)
The steady increase in non-linear loads on the power supply network such as, for instance, variable speed motor drives (VSDs), raises questions about power quality and reliability. In this respect, a... (Read More)
The first signs of the incompatibility between conventional building power distribution systems and personal computers became obvious in the mid-1980s as more and more personal computers appeared in... (Read More)
The steady increase in non-linear loads on the power supply network such as, for instance, variable speed motor drives (VSDs), raises questions about power quality and reliability. In this respect, a... (Read More)
OVERVIEW The implementation of harmonic filters has become an essential element of electric power networks. With the advancements in technology and significant improvements of power electronic... (Read More)