Power systems

Sources of Power Quality Problems

Power quality may be affected by a number of issues. Our discussion in this article focuses on various devices and…

2 weeks ago

Common Terms Used When Describing Power Quality Problems

Power quality has become an important issue to electricity consumers at all levels of consumption. This has especially been intensified…

2 weeks ago
Magneto-Optic Current Sensors for High Voltage, High Power Transmission Lines

Magneto-Optic Current Sensors for High Voltage, High Power Transmission Lines

One of the key challenges in measuring the electrical current in high voltage, high power transmission lines, is that of…

3 weeks ago

AC to AC Power Converters with Intermediate DC Link: Types, Features & Applications

This category of AC drives that is often referred to as “Variable Frequency Inverters” is one of the most extensively…

2 months ago

DC to DC Power Converters: Function, Types, Operation & Applications

DC to DC power converters also referred to as choppers provide the means to change one DC voltage to another.…

2 months ago

Equipment Grounding vs. System Grounding

Grounding or earthing an electrical system is the process of connecting all metalwork/frame of electrical equipment i.e. the non-current carrying…

3 months ago

Switchgear Terminology & IEC Standards

Switchgear generally refers to the switching devices and their combinations, with the related control, measuring, protective and regulating equipment. The…

3 months ago

Air-Blast Circuit Breakers: Features, Operation & Applications

Air-blast circuit breakers utilize a blast of compressed air typically at a pressure of 25–75 bar, which is directed across…

4 months ago

Testing & Commissioning Protective Schemes

Generally protective equipment testing may be divided into three stages: Factory tests. Commissioning tests. Periodic maintenance tests. Factory and commissioning…

4 months ago

The Principles of Power System Protection

The Function and Principles of Power System Protection The objective of power system protection is to detect faults or abnormal…

4 months ago