Electricity: motive power systems – Limitation of motor load – current – torque or force
Patent
1998-12-23
2000-08-29
Sircus, Brian
Electricity: motive power systems
Limitation of motor load, current, torque or force
318254, 318772, 307113, 307134, 361 8, H02K 2300, H02H 700
Patent
active
061113778
ABSTRACT:
Control device for a multiphase electric motor (M) comprising firstly two two-directional static switches (IS1, IS2) each associated with a terminal of a shunt contactor (S) installed in parallel, these switches (IS1, IS2, S) being controlled by a control circuit (C) controlling progressive operation of the motor, characterized in that the shunt contactor (S) is of the four-pole type and is fitted with solid connection parts (6, 7) each connecting two terminals of the said contactor, these connection parts (6, 7) being connected in pairs (L1, L3) to the terminals of the static switches (IS1, IS2) such that each (IS1 or IS2) is connected to two terminals.
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Hertzog Nicolas
Jacq Joel
Lange Christian
Ourth Thierry
Romillon Jean-Marc
Schneider Electric SA
Sircus Brian
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