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Technical Articles

Electrical Lectures

Back To School – Let’s Calculate Current I3

Referring to the following circuit, calculate direct current I3: Using Kirchhoff’s laws; Using nodal analysis; Applying Thévenin’s theorem at nodes A and B. – KCL stands for Kirchhoff’s Current Law… Read more

Apr 10, 2015 | By Edvard

Energy Efficiency

3 Lighting Essentials You Can’t Deny

Lighting systems in industrial facilities can represent an attractive savings opportunity, especially if lighting systems have not been upgraded or maintained in the past five years. The most cost-effective approach for lighting… Read more

Apr 03, 2015 | By Edvard

3 Lighting Essentials You Can't Deny
Maintenance

Maintenance of transformer load tap changers (LTC)

LTC maintenance is the basis for the regulating transformer’s high level of reliability. The background for maintenance recommendations is as follows: Oil: For LTCs where oil is used for arc-quenching,… Read more

Mar 25, 2015 | By Edvard

Maintenance of Load Tap Changers (LTCs)
Energy and Power

11 major causes of power system failures

To gain a broader understanding of power system reliability, it is necessary to understand the root causes of system faults and system failures. A description of major failure modes is… Read more

Mar 18, 2015 | By Edvard

11 Major Causes of Power System Failures
Electric Motor

Comparison of motor speed control methods

It is often desirable to control the motor speed, usually for reasons process control for such variables as flow or pressure. Such applications as fans and pumps often have varying… Read more

Mar 13, 2015 | By Edvard

Comparison of motor speed control methods


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