LOW-VOLTAGE POWER DISTRIBUTION VOLTAGE-REGULATING DEVICE

摘要

A low-voltage power distribution voltage-regulating device, comprising the following constituent parts: an incoming line apparatus (4) provided with an incoming line busbar (7), which is connected to an incoming line power supply line, and an incoming line line breaker (6); an outgoing line apparatus (6) provided with an outgoing line busbar (12) connected to a load line; a regulating autotransformer (2); an action execution mechanism (4) comprising a plurality of contactors (15, 16, 17, 18), wherein one end of each contactor is connected to an input end of the regulating autotransformer and the other end is respectively connected to a knob-position of a primary winding of the regulating autotransformer corresponding to a different number of turn; and a control unit (22), wherein the action execution mechanism is connected to the control unit. The voltage-regulating device can be connected to a power grid conveniently, and in the case of not adding a 10 kV line, not newly adding a power distribution transformer and not changing a low-voltage line, can solve the problem that a terminal voltage in a low-voltage line of an electrical transformer district in a rural area does not qualify and perform voltage compensation on a low voltage at the terminal of the power grid.