frequency monitoring relays

Automation has been accomplished using a variety of techniques, typically in conjunction with computers, electrical, mechanical, hydraulic, and pneumatic systems. All these integrated strategies are usually used in complex systems, such modern factories and ships. Almost all manufacturing and assembly processes now involve a high degree of automation. The production of electricity, the refining of oil, chemicals, steel mills, plastics, cement and fertilizer plants, pulp and paper mills, glass manufacturing, natural gas separation plants, food and beverage processing, canning and bottling, and the production of various parts are some of the larger processes.