Power System Overvoltages and Insulation Coordination – Part 1
Note: This is the first part of power system voltages and insulation coordination. Insulation coordination is dealt with for three phase AC systems with nominal voltages Un > 1kV in …
Neutral Grounding
Introduction In power system, grounding or earthing means connecting frame of electrical equipment (non-current carrying part) or some electrical part of the system (e.g. neutral point in a star-connected system, …
Philippine Electrical Code – Acceptable Practice
Electrical Engineers – Do you really care? Electrical installation of this kind is all over Metro Manila and probable in some other major cities in the Philippines. Are these building …
The Effect of Earthing Methods
Earthing the System Neutral Most earthed systems employ some method of earthing the system neutral at one or more points. Effectively Earthed System A system is effectively earthed when the …
Electromagnetic Compatibility (EMC) and its Importance in Power Quality
Electromagnetic Compatibility (EMC) refers to the ability of electronic and electrical systems, devices, and equipment to operate in their intended electromagnetic environment without causing or experiencing interference. This interference can …
Earth Leakage Circuit Breaker and Residual Current Circuit Breaker – Application, Operation and Limitations
International Standards Protection of human life, Equipment against earth leakage is an important aspect which needs to be taken into consideration. There are different international standards which are clearly defining …