FIELD: electric engineering.
SUBSTANCE: voltage commutator has electronic key, which through current sensor feeds power to load block, first and second relay elements, connected to output of current sensor and by elements AND, OR controlling the trigger unlocking electronic key in case of current exceeding. Device additionally has output current adjuster, containing voltage set-point device, operation amplifier, transistor and indicator, tracking the state of electronic key. Adjustment of output current allows to cause activation of relay elements, and observation of their activation using indicator allows to determine broken element by preset current.
EFFECT: broader functional capabilities.
1 dwg, 1 tbl
