Switch apparatus back-arc medium recovery strength nanosecond continuous pulse measuring device and method thereof
A technology of dielectric recovery strength and switching electrical appliances, which is applied in the direction of circuit breaker testing, etc., can solve the problems of increasing single pulse duration and unfavorable test results, and achieve the effects of reducing experimental costs, improving observation accuracy, and improving efficiency
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[0013] The present invention will be further described in detail below in conjunction with the accompanying drawings.
[0014] See figure 1 , The test device of the present invention includes a high-voltage power supply 1, a high-voltage electronic switch 2, and a charging resistor R 1 , Pulse forming circuit 3, coaxial transmission circuit 11, matching resistance R 2 , DC blocking capacitor C d , Capacitor voltage divider 4, peak voltage detection circuit 5, coaxial shunt 6, test switch 7, opening control circuit 8, zero-crossing detection circuit 9, control single-chip 10, electronic switch drive circuit 12. Capacitance C 0 And inductance L 0 Series, inductance L 0 Main switch K is connected in parallel 1 And ignition switch K 2 , The main switch K 1 And ignition switch K 2 Connect with auxiliary switch Sa, ignition switch K 2 There is also a resistor R in series with the auxiliary switch Sa 3 , Forming the current source of the measuring equipment; the auxiliary switch Sa is s...
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