Tripping characteristic detection device for pole-mounted circuit breaker

The invention relates to a tripping characteristic detection device for a pole-mounted circuit breaker, and the device comprises an inverter (1) connected with a DC input end (12), a voltage regulation branch circuit and a no-voltage regulation branch circuit , wherein the voltage regulation branch circuit and the no-voltage regulation branch circuit are respectively connected with a three-phase AC output end of the inverter (1), and the voltage regulation branch is connected with a power side three-phase output end (10) and a load side three-phase output end (11); the no-voltage regulation branch circuit is connected with a power supply side three-phase output end (10), and the inverter, the voltage regulation branch circuit, the no-voltage regulation branch circuit, the power supply sidethree-phase output end (10) and the load side three-phase output end (11) form a three-phase detection loop. Compared with the prior art, the method has the advantages of high detection efficiency, low cost, no need of pole