Emergency drive device for an A.C. elevator
Described is an emergency drive device for an A.C. elevator which comprises; and alternating current motor for driving a car, an inverter for converting a direct current into an alternating current of variable frequency and supplying the resulting alternating current to said alternating current moto...
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| Main Author | |
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| Format | Patent |
| Language | English |
| Published |
27.11.1984
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| Subjects | |
| Online Access | Get full text |
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| Abstract | Described is an emergency drive device for an A.C. elevator which comprises; and alternating current motor for driving a car, an inverter for converting a direct current into an alternating current of variable frequency and supplying the resulting alternating current to said alternating current motor, and an emergency power source connected across input terminals of the inverter with the same polarity as said input terminals and designed to supply direct current power to the drive device. |
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| AbstractList | Described is an emergency drive device for an A.C. elevator which comprises; and alternating current motor for driving a car, an inverter for converting a direct current into an alternating current of variable frequency and supplying the resulting alternating current to said alternating current motor, and an emergency power source connected across input terminals of the inverter with the same polarity as said input terminals and designed to supply direct current power to the drive device. |
| Author | NOMURA; MASAMI |
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| Notes | Application Number: US19820410598 |
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| PublicationDate | 19841127 |
| PublicationDateYYYYMMDD | 1984-11-27 |
| PublicationDate_xml | – month: 11 year: 1984 text: 19841127 day: 27 |
| PublicationDecade | 1980 |
| PublicationYear | 1984 |
| RelatedCompanies | MITSUBISHI DENKI KABUSHIKI KAISHA |
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| Snippet | Described is an emergency drive device for an A.C. elevator which comprises; and alternating current motor for driving a car, an inverter for converting a... |
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| SubjectTerms | CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTINGELECTRIC POWER CONVERSION OR DISTRIBUTION OF ELECTRIC POWER ELECTRICITY ELEVATORS ESCALATORS OR MOVING WALKWAYS GENERATION HAULING HOISTING LIFTING PERFORMING OPERATIONS SYSTEMS FOR STORING ELECTRIC ENERGY TRANSPORTING |
| Title | Emergency drive device for an A.C. elevator |
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