Abstract
The article discusses the issues of creating contactless switching devices for automatic quality control and operation modes of power supply systems, using the developed contactless thyristor voltage relays, characterized by high reliability and speed, combining a sensitive system and a powerful final controlling element. Schemes with operating principles and experimental characteristics are given. It is proposed to use it to automatically turn on or off the booster transformer winding when the input voltage changes to maintain the rated voltage of electricity consumers, as well as to create a power regulator for capacitor banks of reactive energy compensating devices.
Highlights
Electricity as a special type of product, with various quality indicators, which are used to judge its suitability in a production environment
One of the important quality indicators is the stability of the effective voltage value
Disconnection of the booster transformer winding from the network is carried out due to the action of the second voltage relay (II), containing a limiting resistor R4 through which a signal is supplied to the control electrode of the VT3 thyristor
Summary
Electricity as a special type of product, with various quality indicators, which are used to judge its suitability in a production environment. Using special technical means of regulation, transformers with load regulation or booster transformers, it is possible to achieve an improvement in the quality of voltage at consumers In this case, it becomes necessary to change the number of turns of the primary windings of the transformers. The energy required for control is hundreds of thousands of times less than the energy that can be controlled using a thyristor When carefully manufactured, this device operates with a high degree of reliability. The range of currents (from mA to thousand A), the range of voltages (up to 1000 V and more), the speed of action (up to fractions of microseconds) - all this makes the thyristor an indispensable device in many areas of technology [15,16]
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