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Features of thermistor protection of three-phase asynchronous motors with short-circuit rotor with voltage up to 0.66 kV

Features of thermistor protection of three-phase asynchronous motors with short-circuit rotor with voltage up to 0.66 kV

Abstract

The article analyzes the features of thermistor protection against overheating of three-phase asynchronous motors with a squirrel-cage rotor with a voltage of up to 0.66 kV. A comparative analysis of different types and types of thermistors is carried out, in particular their design features, operating principles and characteristics, which provides effective protection of motor windings from critical overheating. The advantages and disadvantages of different types of thermistor protection of asynchronous motors are determined, which allows you to reasonably choose the optimal protection option depending on the operating conditions and requirements for the reliability of electric motors in accordance with modern standards.

У статті проаналізовані особливості термісторного захисту від перегріву трифазних асинхронних двигунів з короткозамкненим ротором напругою до 0,66 кВ. Проведено порівняльний аналіз різних типів та видів термісторів, зокрема їх конструктивних особливостей, принципів роботи та характеристик, що забезпечує ефективний захист обмоток двигуна від критичного перегріву. Визначено переваги та недоліки різних видів термісторного захисту асинхронних двигунів, що дозволяє обґрунтовано вибрати оптимальний варіант захисту залежно від умов експлуатації та вимог до надійності електродвигунів у відповідності з сучасними міжнародними стандартами.

Keywords

thermistor protection, thermistor, термістор, PTC thermistor, асинхронний електродвигун, NTC thermistor, thermistor protection relay, термісторне реле захисту, asynchronous electric motor, NTC-термістор, термісторний захист, PTC-термістор, overheating, перегрів

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
Average
Average
gold