Single-Phasing Protection of Line-Operated Motors of Different Efficiency Classes

Ferreira, A. Cláudia S.; Silva, Andre M.; Almeida, Anı́bal T. de

doi:10.1109/tia.2018.2797884

Cited by 14 publications

(7 citation statements)

References 11 publications

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“…This forces IM to draw a higher current, which results in asymmetrical losses. Additionally, the IM stator windings experience thermal overload, which leads to insulation damage [8], [11].…”

Section: Introductionmentioning

confidence: 99%

“…According to some research on the effect of voltage imbalance on the motor, a simple change of 3% in voltage imbalance causes the temperature to rise by 25% [11], [13]. When a motor is fully loaded, the value of unbalanced phase current is (6)(7)(8)(9)(10) times the percentage value of unbalanced voltage at the terminals [6], [14].…”

Section: Introductionmentioning

confidence: 99%

“…In addition, the phase loss fault supplies the motors with negative series currents, which lead to the production of parasitic magnetic fields, decreasing the torque, and then causing overheating and serious effects [11], [15].…”

Section: Introductionmentioning

confidence: 99%

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An Efficient Protection Scheme Against Single-Phasing Fault for Three-Phase Induction Motor

Dawood,

Ismeil,

Hussein

et al. 2024

IEEE Access

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The loss of one phase of a three-phase Induction Motor (IM) is one of the main causes of motor failure due to overheating. Several protection devices protect IM against this fault, but the majority of conventional devices lack a thorough classification of this type of fault. So, this paper introduces a highefficiency protection scheme to detect and classify in detail 15 types of faults that can occur due to a phase loss of a three-phase IM. These faults are classified according to the defective phase, fault location either from the power source or beyond the relay point, and motor action modes (standstill mode, transient mode, and steady state mode). One of the advantages of the presented protection method is that it is suitable for many motors because the inputs to the proposed scheme are the per-unit values of both RMS line-line voltages and line currents. The proposed scheme has been validated and tested using MATLAB Simulink under normal conditions and different faults for phase loss, during and after disconnecting the motor, and after pushing the restart button. The simulation results show that the proposed scheme behaves with high efficiency and it is able to detect and classify correctly the phase loss faults for three-phase IM within 1.5 cycles (30 ms) of the fault inception. Thus, the proposed scheme can be used as a simple and reliable scheme in the protection system of a 3-phase IM to detect and classify the different types of phase loss faults.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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An Efficient Protection Scheme Against Single-Phasing Fault for Three-Phase Induction Motor

Dawood,

Ismeil,

Hussein

et al. 2024

IEEE Access

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“…There are a lot of possible causes of this fault, among which are blown fuses, open switches, broken or damaged wires, worn or oxidized contacts, melted conductors, mechanical damage, etc. Full list of possible reasons and their classifications are given in [2].…”

Section: Introductionmentioning

confidence: 99%

“…In case of an error, the relay turns the equipment under protection off and may notify the monitoring system. Other protective devices for this kind of faults are discussed in detail in [2], where the authors also pay specific attention to the standard related to motor protection. At the same time, the authors of [3] propose to use additional neutral wire as a simple solution for the open phase operation of induction motors.…”

Section: Introductionmentioning

confidence: 99%

Phase Loss Detection Using Current Signals: A Review

Dianov

Anuchin

2021

IEEE Access

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This paper discusses open phase faults, which can happen in a system grid-converter-motor drive, and measures to properly handle this type of fault. The authors of this paper provide classification of algorithms used for the detection of the loss of phase and explain the distinctive features of each group of methods. They review existing algorithms, which are based on the analysis of the current signals, discuss their pros and cons and suggest possible areas of usage for each group of methods. The authors also propose one novel method for detection of open phase, which was developed for low-cost systems with low resolution analog-to digital converters (ADC). This paper mainly considers methods for three-phase motors as the most popular machines, however some algorithms can be used in multiphase drives. The authors of the paper also share their more than 20 years' experience combined, in this area, which was obtained by developing industrial and commercial drives, and focus on the requirements of the IEC/UL 60730 safety standard, where the phase-loss detection algorithm is one of the essential parts of control system.

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