Application considerations for class 1 div 2 inverter-fed motors

Paes, Richard; Lockley, Bill; Driscoll, T.; Melfi, M.J.; Rowe, V.; Rizzo, S.

doi:10.1109/pcicon.2004.1352812

Cited by 6 publications

(2 citation statements)

References 14 publications

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“…An output reactor also acts as an effective common mode voltage filter [19] resulting in minimum shaft voltage with a stored energy below the ignition energy of the hazardous area in accordance with the principles outlined in [20]. This also reduces the risk of the detrimental effects discussed in the previous section even further.…”

Section: Hazardous Area Considerationsmentioning

confidence: 93%

Experience with new large adjustable speed drive technology for multiple synchronous motors

Endrejat

Blerk

Vignolo

2008

2008 5th Petroleum and Chemical Industry Conference Europe - Electrical and Instrumentation Applications

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New Voltage Source Inverter technology now exists with high output voltage (≥11kV) suitable for high power synchronous motor applications. The technology with an advanced control system can be used as a multiple motor soft starter and adjustable speed drive for selected motors with significant benefits. Design, commissioning and operation experience is described for a first of its kind installation with three synchronous motors rated 11kV 17MW. The overall control and communication system is described with specific attention to safety, redundancy and process availability. New synchronization and desynchronization scheme experience is described. Unique synchronous motor protection and excitation control schemes for both adjustable speed and line operation are outlined. Site recordings prove system ride-through capability in terms of voltage dips and bypass of internal power cells. Conclusions are given which support new voltage source technology as a viable alternative to conventional load commutated inverter technology for certain large synchronous motor applications. Suggestions are made for additions to present medium voltage adjustable speed drive standards.Index Terms -adjustable speed drive, synchronous motors, voltage source inverter, medium voltage, load commutated inverter

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Section: Hazardous Area Considerationsmentioning

confidence: 93%

Experience with new large adjustable speed drive technology for multiple synchronous motors

Endrejat

Blerk

Vignolo

2008

2008 5th Petroleum and Chemical Industry Conference Europe - Electrical and Instrumentation Applications

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“…During the practical running of inverter-fed motor, the produced heat makes the insulating material operating temperature reach nearly 140°C [19]. Consequently, study on space charge characteristic in polyimide film under various temperatures, especially under high temperature, is remarkably important.…”

Section: Space Charge Distribution Testmentioning

confidence: 99%

Study on charge transport mechanism and space charge characteristics of polyimide films

Zhou

Gao

et al. 2009

IEEE Trans. Dielect. Electr. Insul.

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As a core component of ac drive electric locomotive, performance of inverter-fed motor directly influences the stability and reliability of locomotive running. However, insulation early failures occur frequently. Presently, polyimide film, as a special type of engineering plastic film, widely applied in turn to turn insulation and turn to ground insulation of inverter-fed motors is a kind of basic insulating material. This paper investigates charge transport mechanism and space charge characteristics of polyimide films based on measuring and comparing space charge accumulation threshold field between corona-resistant and common polyimide films and analyzing the effect of temperature on space charge distribution. The results reveal that space charge accumulation threshold field of corona-resistant polyimide film is higher than that of common polyimide film; the adding of nano-particles effectively increases dielectric properties of corona-resistant film. Additionally, raising temperature promotes the electrode injecting charge and increases the charge energy and conductivity which gradually enhances space charge number and extends trapping position into the bulk, closely related to polyimide film insulation aging and breakdown which is an important characteristic.

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Introduction to IEEE 841-2020 for Severe Duty Squirrel Cage Induction Motors—Up to and Including 370 kW (500 hp): Improving Motor Reliability, Maintainability, and Energy Efficiency

Dunn

Reamer²,

Bogh³

et al. 2023

IEEE Ind. Appl. Mag.

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Application considerations for class 1 div 2 inverter-fed motors

Cited by 6 publications

References 14 publications

Experience with new large adjustable speed drive technology for multiple synchronous motors

Experience with new large adjustable speed drive technology for multiple synchronous motors

Study on charge transport mechanism and space charge characteristics of polyimide films

Introduction to IEEE 841-2020 for Severe Duty Squirrel Cage Induction Motors—Up to and Including 370 kW (500 hp): Improving Motor Reliability, Maintainability, and Energy Efficiency

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