The features of the design and modernization of the complex of urban and industrial sewage stations are Considered. The analysis of the application of modern hardware and algorithms for optimal control of the main pumps and auxiliary systems of wastewater disposal stations is presented.
The article deals with the problems arising in the certification of microprocessor (MP) relay protection and automation (RZA) and ways to solve them. Contradictory requirements of normative documentation (ND) on certification of different organizations are shown. Some problematic aspects of the procedure of certification of RZA devices are given on the example of SHET cabinets.
When commissioning the electricity meter after long-term storage, it is necessary to carry out the verification in accordance with the requirements of electrical installations rules.
The article describes the monitors of the load on the shaft of the electric motor, which allow continuous monitoring of the operation of electric motors, registering modes and events of the operation of electric motors.
