Substation auxiliary facilities
Nowadays, HV/EHV substations have become pretty complex from the design point of view. Besides the main electrical equipment, which must be designed and selected correctly, there are several auxiliary facilities without which a substation would not be able to operate correctly and safely. Auxiliary facilities such as earthing, cabling, oil handling system, lighting, fire fighting, crane and other unloading facilities, oil filtration, AC/DC auxiliary system, etc., must be provided.
These requirements have been briefly discussed in this technical article.
- Oil-handling system
- Illumination system
- Crane facilities
- Fire protection facilities
- DC auxiliary supply
- AC auxiliary supply
Provision of adequate earthing system in a substation is extremely important for safety of the operating personnel as well as for proper system operation and performance of the protection devices.