Automatic test system and method for voltage endurance capacity of alternating current contactor
An automatic test system and technology for AC contactors, which are used in circuit breaker testing, dielectric strength testing, etc., can solve the problems of inaccurate test results, slow testing progress, and cumbersome workload, and achieve automatic testing and monitoring. Time synchronization, the effect of reducing workload
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[0087] Example 1
[0088] The sag generator generates a voltage sag signal to supply power to the ACC, and the power quality monitoring system collects data through two channels.
[0089] Power quality monitoring system channel 1 monitors the sag generator, and the monitored voltage sag (effective value curve) is as Figure 4 Curve 1, the sag generator generates a signal at t1, the voltage is the rated value, the voltage sag occurs at t2, the voltage amplitude drops from 1p.u to Vp.u, the voltage sag ends at t3, and the voltage returns to the rated value.
[0090] t2-t3 is the duration of the voltage sag, the voltage sag amplitude V(p.u), the duration T=t3-t2
[0091] Channel 2 of the power quality monitoring system monitors the on-off value of ACC. When the sag generator does not supply power to ACC (0-t1), the ACC normally open contact is disconnected, and the switch value is 0. When the sag generator supplies power to the ACC but there is no voltage sag (t1-t2), the ACC works nor...
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