This approach assumes retrofitting and upgrading old substation secondary equipment such as intelligent electronic devices (IEDs), monitoring sensors, power apparatus, communication protocol and operating standards to improve the overall performance… Read more
Sep 17, 2018 | Edvard
The most of HV busbur faults involve single phase and earth, but faults may arise from many different causes. The number of faults that stand out is between phases clear… Read more
Sep 12, 2018 | Edvard
One of the most common faults to occur on a motor is a stator winding fault. Whatever the initial form of the fault (phase phase, etc.) or the cause (cyclic… Read more
Sep 10, 2018 | Edvard
Various types of instrument transformers are currently in use on the basis of the varied applications of these devices. The construction aspects and sizing play an important role in the… Read more
Sep 05, 2018 | Edvard
This function significantly reduces the tripping time of the circuit breakers closest to the source. It can be used for zone selective interlocking (ZSI) in closed ring networks. It applies… Read more
Aug 27, 2018 | Edvard
Transmission and distribution systems are exposed to overcurrent flow into their elements. In an electric power system, overcurrent or excess current is a situation where a larger than intended electric… Read more
Aug 13, 2018 | Edvard
Generating unit is a pretty complex system made up of the generator stator winding, its transformer and unit transformer (if present), the rotor with its field winding and excitation system,… Read more
Aug 06, 2018 | Edvard
Each neutral earthing system has advantages and disadvantages for the safety of property, electromagnetic compatibility or continuity of service. The main system must therefore be chosen according to these criteria,… Read more
Jul 18, 2018 | Edvard
Since IEC 61850 was published as an international standard for communication in substations, the standard has found broad acceptance on the markets. In the first substations to use it, the… Read more
Jul 04, 2018 | Edvard
Selection of proper relay is one of the most important stages to have a reliable network. In this article, selection of relay for incoming and outgoing feeders for LV switchgears… Read more
Jul 02, 2018 | Edvard
