Electric Motor
8 Energy-Efficiency Improvement Opportunities In Electric Motors
When considering energy-efficiency improvements to a facility’s motor systems, a systems approach incorporating pumps, compressors, and fans must be used in order to attain optimal savings and performance. In the following, considerations with respect to energy use and energy saving… Read more
Sep 29, 2014 | By Edvard Csanyi
Solar Power
3 Photovoltaic Installation Terms To Be Familiar With
In order to understand a photovoltaic (PV) installation and its components we must be familiar with the following terms: Standard Test Conditions (STC) PV modules PV string and Array The output of a PV module is not stable it depends… Read more
Sep 26, 2014 | By Erin Ndrio
Energy and Power
Maintenance Management Of Electrical Equipment (Condition Monitoring Based) – 6
Read previous parts of this serie – Part 1 | Part 2 | Part 3 | Part 4 and Part 5 Proper Use of Predictive Technologies Merits and Demerits of CDM program Advantages Disadvantages CDM is more than maintenance Conclusion System components, such as circuit breakers, transformers,… Read more
Sep 24, 2014 | By Ashok Parikh
Energy and Power
The need for electric energy is never ending
As you guess, yes, the need for electric energy is never ending. Along with the growth in demand for electric power, sustainable development, environmental issues, and power quality and reliability have become concerns. Electric utilities are becoming more and more… Read more
Sep 22, 2014 | By Edvard Csanyi
Energy and Power
Rating Definitions Applied to Low Voltage Molded-Case Circuit Breaker (MCCB)
The molded-case circuit breaker is the “workhorse” for system protection 600V and below. A circuit breaker is a device designed to open and close by nonautomatic means and to open the circuit automatically on a predetermined overcurrent without damage to itself when… Read more
Sep 19, 2014 | By Edvard Csanyi
Industrial Automation
10 Things to Consider When Selecting a High Quality Medium Voltage Drive
Medium voltage drives have been available for over 35 years, but have only recently achieved very high reliability and simplicity within the past few years. Below are 10 considerations on how I would go about specifying and selecting a very… Read more
Sep 17, 2014 | By Craig Hartman
Cables
4 ways in which noise can enter a signal cable and its control – Part 2
Continued from part 1… Read here. In previous part of this technical article, I wrote about electrical noise occurs or is transmitted into a signal cable system in the following four ways: Galvanic (direct electrical contact) – part 1 Electrostatic… Read more
Sep 15, 2014 | By Edvard Csanyi
Energy and Power
Maintenance Management Of Electrical Equipment (Condition Monitoring Based) – 5
In case of new industry, it would be easy to implement Condition Monitoring based Maintenance Management (CDM) as apart of respective equipment or system itself after evaluating various factors discussed in previous part 4 of article. The new industry may also take… Read more
Sep 12, 2014 | By Ashok Parikh
Energy and Power
14 terms of particular importance when discussing arc flash hazards
Electrical arcs form when a medium that is normally an insulator, such as air, is subjected to an electric field strong enough to cause it to become ionized. This ionization causes the medium to become a conductor which can carry current. The… Read more
Sep 10, 2014 | By Edvard Csanyi
Cables
4 ways in which noise can enter a signal cable and its control
Noise, or interference, can be defined as undesirable electrical signals, which distort or interfere with an original (or desired) signal. Noise could be transient (temporary) or constant. Unpredictable transient noise is caused, for example, by lightning. Electrical noise occurs or… Read more
Sep 08, 2014 | By Edvard Csanyi
Energy and Power
Maintenance Management Of Electrical Equipment (Condition Monitoring Based) – 4
Read previous parts of this serie – Part 1, Part 2 and Part 3 After deciding to go for the implementation of CDM based on evaluation of various factors discussed in foregoing points and other factors, if any, as per the company policy,… Read more
Sep 05, 2014 | By Ashok Parikh
Energy and Power
Rating Definitions Applied to Medium Voltage Circuit Breaker
The medium voltage circuit breaker is the device of choice when sophisticated system protection at the medium voltage level is required. Most modern medium voltage circuit breakers use a vacuum as the interrupting means, although sulfur-hexafluoride (SF6) based units still exist and in use. Medium… Read more
Sep 03, 2014 | By Edvard Csanyi
Energy and Power
Maintenance Management Of Electrical Equipment (Condition Monitoring Based) – 3
It is beyond the scope of this technical article to discuss the development of performance and dependability models for analysis, assessment and justification of CDM program. The scope is kept limited to some basic issues that should be taken into… Read more
Sep 01, 2014 | By Ashok Parikh
