Annotation: In the article the negative impact of higher transmission and consumption of reactive power, proved feasibility reactive power compensation in load. According to the research, the mechanism of compensation based on synchronous motors with feedback on the system cos φ control current winding.
Key words: reactive power, power loss, synchronous motor, static compensator, network load, power factor induction motor.
Annotation: The article describes the installation of an improved reflect meter, complete with six infrared LED lights. As a result of theoretical research developed experimental setup for physical modeling of thermal stress in the workplace with an intense heat. Based on the physical modeling of the regularities of changes thermoradiation intensity depending on the spatial arrangement of heat sources.
Key words: heat flow, sensor, excessive heat radiation, heating temperature, measurement range.
Annotation: The article suggests dynamic mechanical model allows to simulate dynamic processes start and "pounced" load on the shaft of the induction motor, as well as to determine the starting points in the various laws regulating the speed of automatic control systems.
Key words: asynchronous motor, simulation, mechanical characteristic, voltage, frequency, engine idling, starting torques.
Annotation: The article, based on an analysis of existing light sources used in industrial, civil and residential buildings, the study shows the noise characteristics and the electromagnetic radiation of low pressure fluorescent lamps.
Key words: light, fluorescent lamp, lighting, the frequency spectrum of the radiation, noise, electromagnetic radiation measurement range.
Summary. In article, on the basis of the analysis of the existing light sources used in industrial, civil and in household rooms, characteristics of modern luminescent lamps of low pressure with electronic input-regulate devices are investigated.
Key words: light, illumination, fluorescent lamps, man, ultrasound.
A fluidizer light design, consisting of light chamber, is resulted in the article; semilucent screen; matrices of ultra of bright light-emitting diodes. As a result of theoretical researches an experimental fluidizer is developed physical design of thermal tension on workplaces with intensive teplovydeleniem. On the basis of physical design conformities to law of change thermo of radiation tension are set depending on the spatial location of sources of caloradiance.
Keywords: heat flow, sensor, excessive heat radiation, heating temperature, measurement range.
The questions of safety of workers which work in dangerous terms in extraordinary situations (ES) on the objects of a build industry are examined in the article. Authors offer an useful model which behaves to the application of scullguard domain with the visor of fireman-rescuer. Namely, to the shock-protective helmets (to the helmets) and by the devices connected with them for defence of person and sights which are produced from composite materials on the basis of fiberfills and relating their polymeric layers.
Keywords: increased danger, emergency situations, safety helmet, multilayered shell, temperature protection.
