Control device for monitoring machines driving revolving devices

Details Control device for monitoring machines driving revolving devices Control device for monitoring machines driving revolving devices

1978-07-27

1981-01-06

Truhe, J. V.

Electricity: motive power systems

Motor-reversing

Automatic and/or with time-delay means

318289, 318284, 318739, H02P 140

Patent

active

042439205

ABSTRACT:
Control device responding to current changes in a load circuit including a supervisory circuit carrying a current proportional to the current in the load circuit, a transformer coupling the supervisory circuit to the load circuit, and an overcurrent sensor and an overcurrent relay electrically connected in series in the supervisory circuit. The overcurrent sensor being set to deliver a signal when a given first current value is reached after a response delay, the overcurrent relay being able to interrupt the load circuit if a given second current value is reached after an adjustable response delay, and a method of operating the control device in a waste crushing machine.

REFERENCES:
patent: 2978965 (1961-04-01), Armitage et al.
patent: 3008074 (1961-11-01), Gregory
patent: 3090900 (1963-04-01), Porter et al.
patent: 3181047 (1965-04-01), Simon
patent: 3551749 (1970-12-01), Hore
patent: 3713005 (1973-01-01), Engel
patent: 3886407 (1975-05-01), Anderson

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