Fiber Channel Test Switching Optical Path Interface Mechanism Applied to Relay Protection Devices

Abstract

The invention relates to a light path interface switching mechanism applied to a relay protection device and used for optical fiber channel testing. The power source end of a control module is connected with a control power source, the input end of the control module is connected with a button switching switch and the output end of the control module is connected with a driving module. A light path switching module comprises two photo-magnetic switches, four transmitting optical fiber interfaces and four receiving optical fiber interfaces. The output end of the driving module is connected with the control ends of the two photo-magnetic switches respectively, the two input ends of the first photo-magnetic switch K1 are connected with the first transmitting optical fiber interface TX1 and the third transmitting optical fiber interface TX3 respectively, the output ends of the first photo-magnetic switch K1 are connected with the second transmitting optical fiber interface TX2 and the fourth transmitting optical fiber interface TX4 respectively, the two input ends of the second photo-magnetic switch K2 are connected with the second receiving optical fiber interface RX2 and the third receiving optical fiber interface RX3 respectively and the two output ends of the second photo-magnetic switch K2 are connected with the first receiving optical fiber interface RX1 and the fourth receiving optical fiber RX4 respectively. The driving module is externally connected with an independent driving power source. Indicator lamp sets connected with the output end of the control module are arranged at the positions of all the optical fiber interfaces.

Description

[0001] This application is a divisional application of the invention patent application with the application number: 201010502186.2, the invention name is "Switching Optical Path Interface Mechanism for Optical Fiber Channel Test of Relay Protection Device", and the application date is: September 29, 2010. technical field [0002] The invention relates to a switching optical path interface mechanism for an optical fiber channel test applied to a relay protection device, and belongs to the technical field of relay protection devices. Background technique [0003] The secondary equipment in the power system is used to monitor, control, adjust, protect the work of the primary equipment, and provide low-voltage electrical equipment required for operating conditions or production command signals for operation and maintenance personnel, and the relay protection mechanism is an important power system secondary circuit equipment. With the gradual promotion of smart substations and s...

AI Technical Summary

Problems solved by technology

The protection of 220kV and above fiber optic channels requires frequent installation and removal of the optical cable connector from the relay protection device during the protection verification test and measurement of optical power, so it is easy to cause the wear of the optical cable interface and the increase in the attenuation of the optical interface contact surface , thereby affecting the accuracy of the relay protection device calibration, and even damage to the optical cable interface will bring hidden dangers to the safe and reliable operation of the main protection of the power line

[0004] At present, the optical fiber protection devices at home and abroad do not have a standard and perfect verification process for the verification of the protection device in the field, especially the verification of the fiber channel.

Images