Oil-immersed mutual inductor end screen grounding monitoring protection system

The invention aims to provide an oil-immersed mutual inductor end screen grounding monitoring protection system with photoelectric signals, which comprises an oil-immersed mutual inductor end screen grounding electric signal monitoring loop, an oil-immersed mutual inductor end screen grounding optical signal monitoring loop and an oil-immersed mutual inductor end screen grounding protection loop, the system can monitor the good grounding state of the end screen, the poor grounding state of the end screen, the non-grounding state of the end screen and the power-off maintenance state. According to the scheme, the grounding state of the end screen can be monitored during operation, the situation that the grounding state is not detected in place by the maintainer and the grounding state is poor in the operation process is avoided, and when the end screen is not grounded, the lightning arrester protects the end screen from being damaged. 本发明的目的在于提出一种带光电信号的油浸式互感器末屏接地监测保护系统，包括油浸式互感器末屏接地电信号监测回路、油浸式互感器末屏接地光信号监测回路、油浸式互