Working method of optical path switching interface mechanism for tests of relay protection device
A technology of relay protection device and working method, which is applied in the direction of optical fiber transmission, electrical components, optical waveguide coupling, etc., can solve the problems affecting the verification accuracy of relay protection devices, the hidden dangers of safe and reliable operation of power lines, and the contact surface of optical fiber interfaces. Increased attenuation and other problems, to improve the level of on-site protection calibration and maintenance, solve the problem of poor contact, and shorten the switching time
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[0021] As shown in Figures 1 to 3, the switching optical path interface mechanism for the test of the relay protection device of this embodiment includes a hood 1 and a control module 6 installed in the hood 1, a driving module 7 and an optical path switching module 9, The control module 6 of the present invention is a complex programmable logic device. The complex programmable logic device is manufactured by Altera Corporation. The control module 6 is used to provide the switching signal input by the optical path switching module 9 corresponding to the conduction. The power supply terminal of the control module 6 is connected to the The control power supply 5 is connected, and the drawing power supply 5 adopts DC24V, and the smaller the power consumption, the better. The input terminal of the control module 6 is connected with the operating state and the button switch 3 of the test state on the panel of the installation hood 1, the button The toggle switch 3 is pressed again a...
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