On-off input circuit for relay protection testing device

Abstract

The invention discloses an on-off input circuit for a relay protection testing device. The circuit consists of a voltage stabilizing diode, a rectification bridge circuit, a photoelectric coupler circuit, a triode switching circuit, a filter capacitor and a voltage stabilizing reference power circuit. The on-off input circuit for the relay protection testing device is self-adaptive about various types of the input patterns, and the pre-configuration does not need to be executed; and the on-off input circuit for the relay protection testing device is self-adaptive about the polarity of the active input, even the reverse connection can be correctly identified, and the potential safety hazard cannot be caused by the polarity of the input. The on-off input circuit for the relay protection testing device is provided with the potential output, and is capable of providing the power for the high-speed output of the Darlington tube type, and reducing the external connections.

Description

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AI Technical Summary

Benefits of technology

This technology allows different inputs like numbers or characters to work better automatically regardless of their orientation on screen displays. Even when they're wrongly connected, this will still function properly. Additionally, by allowing certain signals from one direction into another direction through an electrode array instead of having them go backward, we don’t have any danger because these connections aren't possible during normal use. Overall, our technical effect is that this technology improves efficiency while minimizing risk factors associated with traditional methods such as cables connecting computers together.

Problems solved by technology

Technological Problem addressed in this patents describes how to efficiently troubleshoot relay protecting devices during maintenance without damaging them themselves when they fail due to incorrect connections between external components like cables.

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