power supply equipment

...The supply of electrical energy occupies an important position in the life of modern society. Operation of commerce, industry, transport, health service and private household are all dependent on regular and dependable supply of electrical energy. The quality of supplied electrical energy also depends on information about the state of power system. A successful power system operation therefore requires the use of state-of-the-art secondary equipment, which enables protection, monitoring, supervision and control of individual devices as well as whole power system.