Non-contact voltage relay for switching windings of a boost transformer

Abstract

In power supply systems the change in the magnitude of the voltage degrades the operation of electrical appliances right up to their failure. The proposed scheme of a contactless voltage relay based on a contactless voltage relay with switching the windings of a booster step-up transformer with a time delay allows switching the windings of a magnetizing booster transformer with a voltage change at the consumer terminals. Analytical studies of a non-autonomous non-linear dynamic circuit, which is the basis of the proposed device based on the classical method of solving a differential equation, which determines the nature of the voltage change for controlling thruster switches. The change of energy parameters of the proposed stabilizer depending on the voltage is given. The article considers the principle of operation of the proposed scheme of a contactless switching device based on a contactless voltage relay that switches the windings of a booster step-up transformer. An analytical study of a non-autonomous nonlinear dynamic circuit, which is the basis of the proposed device and the characteristics uc = f t required for switching the thruster is presented.

Issues of cotton cellulose and its properties as an object of technological processing

“…The advantage of a swirling flow in comparison with a direct flow is that it allows several times to increase the average relative velocity of the phases and to increase the concentration of solid material in the apparatus. Particles of solid material, due to the twist, constantly collide with the wall, as a result, the average speed of their movement does not exceed several meters per second [3,10]. At a gas velocity of several tens of meters per second, the relative velocity of the gas and material reaches large values and is close to the velocities of the gas [1,6,11].…”

Development of an Algorithm for Evaluating the Dominant Factors that have the Greatest Impact on the Energy Intensity of Products

“…11. The Vi with the maximum value is chosen, let's say it is Vi, then XL is a factor to be considered [17][18][19] .. , then the XL factor is included in the regression. At any stage of the procedure, the critical attitude for factor inclusion has a general formula:  -the number of residual degrees of freedom after the inclusion of the factor.…”

Phase relations in resonant circuits with a wide falling section on the amplitude characteristic

“…To reveal the phase relationships, we will carry out a theoretical analysis of the circuit under consideration, the equivalent circuit of which is shown in Fig. 1 [1][2][3][4][5].…”