Arrangement for controlling the switching of a power circuit breaker
First Claim
1. A power circuit breaker device comprising:
- a plurality of switching contacts which are movable relative to one another;
an energy store for actuating the switching contacts;
a ratchet device for latching the energy store in a loaded state, the ratchet device being releasable manually or under remote control and including a coupling member which can be acted upon by at least one mechanical movement indicative of at least one operating parameter in order to disable an on command;
a tripping latch for transferring the switching contacts from a closed state to an open state;
a coupling shaft for actuating the coupling member of the ratchet device, the coupling shaft being acted upon by at least one mechanical movement indicative of the at least one operating parameter; and
an indicator member for indicating a readiness of the power circuit breaker to switch on, the indicator member being actuatable depending on a position of the coupling shaft such that the readiness of the power circuit breaker to switch on is indicated only when the energy store is in a taut state and the coupling shaft is not actuated.
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Accused Products
Abstract
A power circuit breaker (1) is provided with an arrangement that controls its switching-on depending on operating parameters (A . . . E, M1, M2, S). These parameters may be, for example, the position of switching contacts, the state of excitation of an undervoltage release and the switching position of another power circuit breaker. The arrangement has a coupling shaft (32) that may be rotated by a tripping half-wave by means of a steering lever (34) and by certain parameters by means of a sensor lever (36). A coupling member (20) that may be swivelled by the coupling shaft (32) allows a ratchet device (5, 6) of the energy store (7) of the power circuit breaker (1) to be released only when all conditions required for switching-on are met.
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Citations
10 Claims
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1. A power circuit breaker device comprising:
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a plurality of switching contacts which are movable relative to one another; an energy store for actuating the switching contacts; a ratchet device for latching the energy store in a loaded state, the ratchet device being releasable manually or under remote control and including a coupling member which can be acted upon by at least one mechanical movement indicative of at least one operating parameter in order to disable an on command; a tripping latch for transferring the switching contacts from a closed state to an open state; a coupling shaft for actuating the coupling member of the ratchet device, the coupling shaft being acted upon by at least one mechanical movement indicative of the at least one operating parameter; and an indicator member for indicating a readiness of the power circuit breaker to switch on, the indicator member being actuatable depending on a position of the coupling shaft such that the readiness of the power circuit breaker to switch on is indicated only when the energy store is in a taut state and the coupling shaft is not actuated. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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Specification