mechanical contactor 441 14 33 a mechanical switching

МЕХАНІЧНІ КОНТАКТОРИ ДЛЯ МЕРЕЖ СЕРЕДНІХ НАПРУГ (mechanical) contactor (441 -14 -33) – a mechanical switching device having only one position of rest, operated otherwise than by hand, capable of making, carrying and breaking currents under normal circuit conditions including operating overload conditions © Клименко Б. В. 2

ELECTROMAGNETS & ACTUATORS magnet (151 -14 -06) – device intended to produce an external magnetic field electromagnet (151 -14 -08) – magnet the magnetic field of which is produced electro-pneumatic, spring-motor, electromagnetic essentially by electric current (electric) actuator (151 -13 -49) – device that produces a specified movement when excited by an electric signal electromagnetic actuator – electric actuator in which the specified movement fully or partially created by electromagnet ELECTROMAGNETIC ACTUATORS MONOSTABILE (one position of rest) BISTABILE (two positions of rest) position of rest (of electromagnet) – the position which the moving elements of the electromagnet take up when its windings are not energized B. Klymenko 4

CLASSIFICATION OF ELECTROMAGNETS FOR ACTUATORS ACCORDING TO KIND OF CURRENT IN THE COIL DC AC ACCORDING TO THE MOTION NON-POLARIZED DIRECTION DEPENDING ON THE CURRENT DIRECTION IN THE COIL POLARIZED ACCORDING TO THE METHOD FOR COIL SUPPLY NON-FORCED ACCORDING TO THE NUMBER OF REST POSITIONS MONOSTABLE BISTABLE polarized electromagnet (151 -14 -09) – magnet the magnetic field of which is produced partly by inherent magnetization and partly by electric current Low & High Coercive Permanent Magnets B. Klymenko 5

ELECTROMAGNETS & ACTUATORS FOR MV VACUUM SWITCHING DEVICES ELECTROMAGNETS SWITCHING DEVICES NON-POLARIZED MONOSTABLE Contactors: Siemens, Areva, CG… ACTUATORS MONOSTABLE Сontactor NON-POLARIZED BISTABLE POLARIZED MONOSTABLE CB: BB TEL (TE) Contactor: VSC (ABB) BISTABLE СB POLARIZED BISTABLE B. Klymenko CB: VM-1 (ABB) 6

MV VACUUM CONTACTOR (ABB) WITH BISTABLE POLARIZED ACTUATORS 1 B. Klymenko 7

PROTOTYPE OF NEW MV VACUUM CONTACTOR © Клименко Б. В. 8

QUASI-BISTABLE ELECTROMAGNET FOR ACTUATORS OF CBs & CONTACTORS B. Klymenko 9

DISTRIBUTION OF THE MAGNETIC FIELD IN THE AXIAL CROSS-SECTION OF QUASI-BISTABLE ELECTROMAGNET WHEN THE CLOSING OPERATION IS PERFORMED Fm = 0; F = - 456 N B. Klymenko Fm = 3 k. A; F = + 13 N Fm = 5 k. A; F = + 192 N Fm = 7 k. A; F = + 306 N 10

DISTRIBUTION OF THE MAGNETIC FIELD IN THE AXIAL CROSS-SECTION OF QUASI-BISTABLE ELECTROMAGNET WHEN THE OPENING OPERATION IS PERFORMED Fm = 0; F = + 2450 N B. Klymenko Fm = -1 k. A; F = + 923 N Fm = -1. 5 k. A; F = + 294 N Fm = -2. 05 k. A; F = - 3. 6 N 11

DIAGRAM OF THE POWER CIRCUITS OF THE CONTROL DEVICE © Клименко Б. В. 12

OSCILLOGRAMS © Клименко Б. В. 13

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