Circuit breaker integrated test device

Abstract

The invention discloses a circuit breaker integrated test device comprising a voltage test module and a tripping-preventing loop test module. The voltage test module comprises a power regulating module. The access port of the power regulating module is connected with a power supply. A switch is arranged between the power regulating module and the power supply. The out port of the power regulating module is connected with a rectification module which is connected with a circuit breaker loop. A regulating knob is connected on the power regulating module. The tripping-preventing loop test module comprises a public power supply wiring end, a closing wiring end, a tripping wiring end, a switch, a first auxiliary contact, a second auxiliary contact and a counting display screen. The closing wiring end is connected in series with the tripping wiring end. The switch is provided with a first moving contact and a second moving contact. The tripping wiring end is connected in series with the first moving contact so that a tripping loop is formed. The public power supply wiring end is connected in series with the second moving contact so that a closing loop is formed. The first auxiliary contact and the second auxiliary contact are respectively connected with the counting display screen. According to the circuit breaker integrated test device, actuating voltage and the circuit breaker tripping-preventing loop can be tested simultaneously.

Description

technical field [0001] The invention relates to the technical field of testing devices, in particular to a circuit breaker comprehensive testing device. Background technique [0002] A circuit breaker is a switching device that can be opened and closed normally under both normal and abnormal circuit conditions. Circuit breakers can be used to distribute electric energy, and can protect circuits, etc. When serious overload, short circuit and undervoltage faults occur in the circuit, the circuit breaker can automatically cut off the circuit to protect the circuit. [0003] At present, it is stipulated that the minimum operating voltage on the opening and closing contactor terminals of the high-voltage circuit breaker operating mechanism should be between 30% and 65% of the rated operating voltage. When the operating voltage is 220V, the operating The voltage output range of the voltage box should be 66V ~ 143V. In order to meet this required range, it is often necessary to te...

AI Technical Summary

Problems solved by technology

However, this traditional manual verification method requires at least three people to operate, and the first person needs to keep the closing handle on, the second person gives the trip command at the same time, and the third person goes to the circuit breaker body to observe The number of operations of the circuit breaker counter

In this case, due to the artificial time error, the experimental test data is very discrete, which is very different from the actual operation, which increases the number of malfunctions of the circuit breaker in actual operation.

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