Static traction/braking switch-over circuit for a variable speed

Electricity: motive power systems – Induction motor systems – Braking

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Details

307252M, 363138, H02P 318, H02M 7515

Patent

active

045435189

ABSTRACT:
A thyristor (TR) is used to switch over between traction and braking states. Rather than supply a special extinction circuit for the switch-over thyristor, it is connected to make use of the extinction circuit already provided in the chopper circuit (H).

REFERENCES:
patent: 3365640 (1968-01-01), Gurwicz
patent: 3887862 (1975-06-01), Hubner
patent: 4019116 (1977-04-01), Klautchek
patent: 4039914 (1977-08-01), Steigerwald et al.

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