Back-up power systems are a vital component of any modern substation, providing power to protection and control equipment in times of power loss.
Failure to provide the back-up power to protection gear to clear a fault can be catastrophic. The problem with batteries in back-up systems is that there is no way of assessing their health by visual inspection alone. Often a battery recently installed that looks perfect on the outside can be totally corroded inside. The battery charger also plays a big part in the reliability of the system. A badly regulated or badly filtered battery charger can damage or even explode a perfectly good battery in a matter of months, if not weeks. Metering on the DC systems can also be misleading. They may be showing the right values but in reality, the battery may be under or overcharged.
It is therefore essential that AC and DC systems are reliable and ready for action all the time, and this necessitates maintenance both for batteries and chargers.
For more information please view our Magellan Power Service Plan brochure or contact us today.