DIELECTRIC SPECTROSCOPY OF CASING THERMOSETTING COMPOSITE ELECTRICAL INSULATION SYSTEM OF INDUCTION TRACTION ELECTRIC MACHINES
Journal Title: Електротехніка і Електромеханіка - Year 2018, Vol 0, Issue 1
Abstract
Introduction. Thermosetting composite electric insulation of traction electric motors undergoes significant heating, moisture, overvoltage, vibration. Purpose. The substantiation of the possibility of using dielectric spectroscopy for monitoring the state of the hull thermosetting composite electric insulating system of induction traction motors (ITM) at the technological stage of manufacturing.. Methodology. In the induction traction motors in which the phases of the stator winding are connected to a «star» and do not have a zero point output, in the case of a two-electrode connection of one of the phases and the housing, the combined characteristics of the capacitance and the dielectric loss tangent of the three-phase hull insulation system are measured. Practical value. It is established that at the second resonant frequency near 10 kHz, the tangent of the dielectric loss is the most sensitive to the state of the composite ITM insulation. Dielectric spectroscopy at alternating voltage of the combined dielectric characteristics makes it possible to evaluate the state of the hull thermosetting electrical insulating system at the final stage of manufacturing of induction traction motors.
Authors and Affiliations
G. V. Bezprozvannych, A. V. Roginskiy
Keywords
Related Articles
- EP ID EP483734
- DOI 10.20998/2074-272X.2018.1.02
- Views 102
- Downloads 0
CONTROL SYSTEM FOR MULTILEVEL INVERTOR OF SOLAR POWER STATION
Purpose. The development of control law for network multilevel invertor of solar power station and design device for control law realization. Methodology. At synthesis of control law theory of automatic control, power ne...
AN ANTHOLOGY OF OUTSTANDING ACHIEVEMENTS IN SCIENCE AND TECHNOLOGY. PART 19: DEEP SPACE STUDY AND EXPLORATION
A brief scientific and historical essay on the history of studies of the Solar System planets and other outer-space worlds in our infinite Universe is given.
NUMERICAL SIMULATION OF SPARK DISCHARGE CHARACTERISTICS IN LIQUID NITROGEN
In MHD approximation, a mathematical model of spark discharge in liquid nitrogen is worked out on the basis of data generalization pertaining to thermodynamical functions and mass-transfer coefficients in a wide paramete...
TRANSIENT HEATING OF MOVING OBJECTS
A mathematical model of transient and quasistatic heating of moving objects by various heat sources is considered. The mathematical formulation of the problem is described, examples of thermal calculation given.
A TECHNIQUE OF MEASURING OF RESISTANCE OF A GROUNDING DEVICE
Introduction. Measurement of resistance of the grounding device (GD) by means of a three-electrode system. This requires not only the right choice of installation locations of measuring electrodes, but also the determina...