Method and device for setting the short circuit moment in electr

Details Method and device for setting the short circuit moment in electr Method and device for setting the short circuit moment in electr

1994-07-06

1996-08-13

Karlsen, Ernest F.

Electricity: measuring and testing

Impedance, admittance or other quantities representative of...

Lumped type parameters

318798, 36457101, G01R 3102, H02P 528

Patent

active

055460143

ABSTRACT:
A method and a device are proposed for setting the short circuit moment in electric motors, particularly in servomotors. For this purpose, the actual short circuit moment of the electric motor is measured and compared with a predetermined short circuit moment. Then the set short circuit current required to attain the desired moment is calculated. A predetermined value for the set short circuit current, which is a function of the calculated value, is then stored in an electronic control device for the electric motor. For this purpose, the device includes a memory in the control device for storing the predetermined set value. In this way it is possible in a simple and economical manner to equip even motors that are produced in manufacturing series and in which greater component tolerances exist, with a short circuit moment that lies within a narrow tolerance range.

REFERENCES:
patent: 3851235 (1974-11-01), Harrison, Jr.
patent: 4006391 (1977-02-01), Deering et al.
patent: 5265590 (1993-11-01), Takagi

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