LOW-VOLTAGE, MEDIUM-VOLTAGE AND HIGH-VOLTAGE DISTRIBUTION DEVICE Russian patent published in 2017 - IPC H02H7/22 

FIELD: electricity.

SUBSTANCE: invention relates to a distribution device with an automatic switch communicating electrical equipment, and a current surge limiter. At that, when the distribution device is used for switching capacitive or inductive equipment or network with inductive or capacitive equipment, the current surge limiter is electrically connected in series to current line of the automatic switch. The current surge limiter absorbs a large amount of energy of the current discharge when the automatic switch is closed due to high current resistance and rapid decrease in the current resistance, when steady current begins to flow through a thermistor. The initial high resistance of the thermistor falls within milliseconds to a slight resistance.

EFFECT: increased reliability of distribution device protection, in particular the automatic switche in the distribution device, from so-called spot welding under reduced pressure, especially in the closing operation.

7 cl, 1 dwg