Sudden pressure relay in oil-filled power transformer
Internal arcing in an oil-filled power transformer can instantly vaporize surrounding oil, generating gas pressures that can cause catastrophic failure, rupture the tank, and spread flaming oil over a large… Read more
Mar 08, 2012 | By Edvard Csanyi
Purpose and maintenance of transformer bushings
The two most common types of bushings used on transformers as main lead entrances are solid porcelain bushings on smaller transformers and oil-filled condenser bushings on larger transformers. Solid porcelain… Read more
Feb 05, 2012 | By Edvard Csanyi
Retro perspective 30 years ago: Metal-Clad or Metal-Enclosed MV Switchgear? What to choose?
There are two types of switchgear commonly applied today for switching and protection of in-plant medium voltage (4.16 kV through 34.5 kV) power distribution systems. One is metal-clad switchgear using draw-out… Read more
Oct 31, 2011 | By Edvard Csanyi
Economic analysis of an mini hydro power plant (MHPP)
Micro hydro projects must be proven to attract the interest of investors. It is also of key importance in enabling financial institutions to supply the funds necessary to finance the… Read more
May 20, 2011 | By Edvard Csanyi
Maintenance Of Meduim Voltage Circuit Breakers
Medium-voltage circuit breakers rated between 1 and 72 kV may be assembled into metal-enclosed switchgear line ups for indoor use, or may be individual components installed outdoors in a substation…. Read more
Apr 17, 2011 | By Edvard Csanyi
Risk and Consequences Of Transformer Fire
The risk of a catastrophic fire with a properly inspected, tested, and maintained transformer is small. Proper maintenance and thorough testing of the transformer will prevent or detect many events… Read more
Feb 07, 2011 | By Edvard Csanyi
The Switchboard Design Requirements
The following rules of design have to be implement in the aim to facilitate the assembly and especially the maintenance of the installation. The switchboard must be designed the way… Read more
Feb 01, 2011 | By Edvard Csanyi
Maintenance Of SF6 Gas Circuit Breakers
Sulfur Hexafluoride (SF6) is an excellent gaseous dielectric for high voltage power applications. It has been used extensively in high voltage circuit breakers and other switchgears employed by the power… Read more
Jan 04, 2011 | By Edvard Csanyi
Maintenance Of Molded Case Circuit Breakers (MCCB)
The maintenance of circuit breakers deserves special consideration because of their importance for routine switching and for protection of other equipment. Electric transmission system breakups and equipment destruction can occur… Read more
Jan 01, 2011 | By Edvard Csanyi
Maintenance Of Low Voltage Circuit Breakers
The deterioration of low voltage circuit breaker is normal and this process begins as soon as the circuit breaker is installed. If deterioration is not checked, it can cause failures… Read more
Dec 31, 2010 | By Edvard Csanyi
Maintenance for UPS systems
Maintenance of the UPS consists of preventive and corrective maintenance. Preventive maintenance consists of a scheduled list of activities. Performing these activities keeps the UPS in good working order and… Read more
Dec 16, 2010 | By Edvard Csanyi
Battery monitoring and maintenance guidelines
Battery monitoring has become a very popular topic, and many companies have either purchased equipment or are in the process of evaluating these systems. This article discusses why monitoring is… Read more
Nov 21, 2010 | By Edvard Csanyi