As you already know, protective conductors are the main part of every earthing protection system, but the complexity of the system will increase with the requirements of information technology, voltage… Read more
Jan 16, 2019 | Edvard
The main function of a circuit breaker is to carry the rated current of the generator and break both the short-circuit current supplied by the generator and that supplied by… Read more
Jan 14, 2019 | Edvard
The utility supply voltage depends on both availability and consumer requirements. The consumer transformer is connected delta on the high-voltage side and grounded wye on the low-voltage side. A fused-disconnect… Read more
Jan 07, 2019 | Edvard
The analysis of faults in synchronous machine and transformer windings presents a special difficulty because the effective impedances of the affected windings under internal fault conditions are not normally known…. Read more
Jan 02, 2019 | Edvard
Directional protection is usually applied to distribution systems that contain multiple power sources, parallel circuits and rings/loops. For such systems it is absolutely necessary to have protection against fault currents…...
Dec 27, 2018 | Edvard
Some of the failure problems associated with capacitor banks are already known, since they happen often. A few of the failures are traceable to the original source and sometimes that… Read more
Dec 23, 2018 | Edvard
The most common voltage sources for power system measurements and protections are either wound transformers (voltage transformers) or capacitive divider devices (capacitor voltage transformers or bushing potential devices). Some new… Read more
Dec 19, 2018 | Edvard
A circuit breaker is both a circuit-breaking device that can make, withstand and break currents whose intensity is at most equal to its rated current (In), and a protection device… Read more
Dec 17, 2018 | Edvard
Connections of private substations to utilities are made more complicated with the addition of private-owned generation facilities. The choice of relays and their placement must be made to ensure adequate… Read more
Dec 12, 2018 | Edvard
This technical article gives key points about the generator protection. To recover the generator from various kinds of faults, the generator protection scheme of the plant must be designed in such… Read more
Dec 05, 2018 | Edvard
