Posts tagged as harmonics

Understanding the basics of power measurement theory

Electrical power applications are changing rapidly which means the load on the electric network is changing: more harmonics and more risk of unbalance. This so-called “bad” power costs money and wastes energy. This article provides some basic theory to understand what is happening with today’s electrical applications. Apparent power To understand the relation between active […]

Addressing industrial power quality problems

Industrial  power quality solutions generally consist of devices to deal with individual problems, and if more than one problem needs to be dealt with, more than one device is required. The unified power quality conditioner (UPQC) is designed to cope with multiple PQ issues. Power quality problems experienced at the grid connection point of industrial […]

New power quality issues in distribution networks

  The increasing application of energy savings devices, the move towards the smart grid and the increasing appearance of distributed generation as well as own generation using inverters has all impacted energy usage, and at the same time has brought about new challenges in the field of power quality. The primary concern is the increase […]

Modern power quality issues

  As we connect more electronic devices to our power systems, the quality of the power becomes more complex. Grounding affects voltage stability and, more importantly, is critical to personal safety. Numerous articles have been written on the subject of harmonics. However, these articles do not always address our basic problems in an understandable way: […]

New harmonics calculation tool launched

  Danfoss presented a workshop on harmonics at the South African National Museum for Military History in Johannesburg on 22 July 2014. The international guest speaker at the event, Andrew Cooper from Danfoss Australia, introduced the company’s MCT 31 harmonics calculation tool which calculates system harmonic distortion for both Danfoss and non-Danfoss drives. It also […]