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 that could lead to explosion and/or fire. However, unforeseen events such as design defects, voltage surges, lightning strikes, structural damage, rapid unexpected deterioration of insulation, …
Substation Ventilation Requirements – Ergon
Substations require special attention to ventilation in order to dissipate heat losses from electrical equipment. Wherever possible, natural air flow to the outside of the building will be used. Forced ventilation should be used where natural ventilation is not practicable. Forced ventilation by means of fan(s) must be designed, supplied and installed by the owner …
Security for Substation Communications
Until recently the term “security,” when applied to SCADA communication systems, meant only the process of ensuring message integrity in the face of electrical noise and other disturbances to the communications. But, in fact, “security” also has a much broader meaning. Security, in the broader sense, is concerned with anything that threatens to interfere with …
Reasons for Substation Grounding System
There are many parameters that have an effect on the voltages in and around the substation area. Since voltages are site-dependent, it is impossible to design one grounding system that is acceptable for all locations. The grid current, fault duration, soil resistivity, surface material, and the size and shape of the grid all have a …
Relationship Between Earthquakes And Substations
To secure and protect substation equipment from damage due to a seismic event, the relationship between earthquakes and substation components must first be understood. Earthquakes occur when there is a sudden rupture along a preexisting geologic fault. Shock waves that radiate from the fracture zone amplify, and depending on the geology, these waves will arrive …
Substation Fire Protection
The risk of fire in substations has been historically low, but the possible impacts of a fire can be catastrophic. Fires in substations can severely impact the supply of power to customers and the utility company’s revenue and assets. These fires can also create a fire hazard to utility personnel, emergency personnel, and the general …
Establishing New Power Substation
The construction of new substations and the expansion of existing facilities are common place projects in electric utilities. However, due to the complexity, very few utility employees are familiar with the complete process that allows these projects to be successfully completed. This article will attempt to highlight the major issues associated with these capital-intensive construction …
ABB – 145kV Compact indoor substation with Disconnecting CB
Turnkey 145 kV S/S project for Borlänge Energi, Sweden, emphasizing the advantages of ABB Disconnecting Circuit Breakers. Small footprint enables indoor air insulated Switchgear solutions, increasing the power substation availability and reliability for the customer. As a complement to the basic version of our LTB circuit breakers, which are primarily designed for conventional substation solutions, …
Substation Ventilation
Substation ventilation is generally required to dissipate the heat produced by transformers and to allow drying after particularly wet or humid periods. However, a number of studies have shown that excessive ventilation can drastically increase condensation.
