The primary use of capacitors in power systems is to improve the power factor of an electrical installation or an individual piece of electrically operated equipment. Capacitors store electrical charge …
Definition Sub-synchronous torsional interaction (SSTI) is a phenomenon in power systems where mechanical torsional oscillations of a turbine-generator shaft interact with the electrical sub-synchronous frequency components of the power system. …
Electric motors rated for use on a fixed frequency power supply, combinations of voltage variation and frequency variation are classified as being either zone A or zone B, in accordance …
I. What is Selectivity? Selection of the protection system of the electrical installation is fundamental to guarantee correct economical and functional service of the whole installation and to reduce the …
I. Causes Surge voltages and surge currents occurring in low-voltage ac power circuits can be caused by: Lightning surges. Lightning surges are the result of a direct flash to the …
In a power system, almost always three phase fault current is higher than the earth-fault current. However, earth fault current near the generator is higher than three phase fault. What …