Abstract A power source with a sparkproof output, comprising a transformer with a rectifier, a spark proofing unit for limiting electric energy released as a result of commutation of the output circuit of the power source, which incorporates an inductive element, made in the present embodiment in the form of a choke, and thyristors and is connected to the output of the rectifier, characterized, in accordance with the invention, in that it is provided with an automatic reclosing unit designed to restore the output electric parameters of the power source after operation of the spark proofing unit and built around additional thyristors, whose number corresponds to that of output windings of the transformer, each additional thyristor being connected in parallel with a respective output winding, and diodes incorporated in the control circuits of the additional thyristors.
A power source with a sparkproof output, comrpising: a transformer; a rectifier connected to the output of said transformer; spark proofing circuit means for limiting electric energy released in the course of commutation of an output circuit of said power source and incorporating an inductive element and thyristors; said spark proofing circuit means being connected to the output of said rectifier; and automatic reclosing circuit means for restoring output electric parameters of said power source following operation of said spark proofing circuit means and comprising additional thyristors and diodes; each of said additional thyristors being connected in parallel with a respective output winding of said transformer, the number thereof corresponding to that of the output windings of said transformer; said diodes being connected to control circuits of said additional thyristors.
Claim 2
Dependent Claim
130 words
A power source with a sparkproof output, comrpising: a transformer; a rectifier connected to the output of said transformer; spark proofing circuit means for limiting electric energy released in the course of commutation of an output circuit of said power source and incorporating an inductive element and thyristors; said spark proofing circuit means being connected to the output of said rectifier; and automatic reclosing circuit means for restoring output electric parameters of said power source following operation of said spark proofing circuit means and comprising additional thyristors and diodes; each of said additional thyristors being connected in parallel with a respective output winding of said transformer, the number thereof corresponding to that of the output windings of said transformer; said diodes being connected to control circuits of said additional thyristors.
Claim 3
Dependent Claim
50 words
A power source as claimed in claim 1, further comprising: an additional feed channel coupled via a diode to said output of said power source, said additional feed channel being made in the form of an additional transformer and a half-wave rectifier connected to the output of said additional transformer.