First of all, we need to understand what the "simulated circuit breaker device" plays a role. The "simulated circuit breaker device" is mainly used for the entire set of tests of power system power failure protection devices or complete sets of relay protection screens, which can truly simulate the break-off time of the circuit breaker. . Simulate the tripping and closing of the high-voltage circuit breaker during the entire set of tests to avoid the adverse effects of repeated splits and closing of the circuit breaker due to repeated set of tests. We will explain it with Guoyi Technology's "GY-MT analog circuit breaker device":
The following points should be paid attention to when purchasing the "analog circuit breaker device":
(1) The power supply voltage of this instrument is DC220V and DC110V. Before the test, the power supply voltage of this instrument is DC220V and DC110V. The voltage must be selected to be consistent with the input voltage.
(2) The "Simulation Circuit Breaker Device" can simulate a phase-divided circuit breaker or a three-phase operating circuit breaker. The closing impedance selection is 400 ohms, 200 ohms, and 110 ohms.
(3) "Simulation Circuit Breaker" The device can simulate tripping and closing times, and the time is set to the dial switch setting, with high accuracy. The trip time setting range is 20-200ms, and the closing time setting range is 20-100ms.