Gas turbine test hydraulic dynamometer water return pool liquid level control system

According to the gas turbine test hydraulic dynamometer water return pool liquid level control system, three drainage pumps are designed to be started and stopped, the liquid level of a water return pool is controlled through three drainage pipelines, a liquid level controller can be configured to be in a manual control mode and an automatic control mode, and in the automatic control mode, four-gear liquid level warning is compared, so that the liquid level of the water return pool is controlled. The liquid level of the water return pool can be controlled at a proper speed, so that the liquid level of the water return pool can be well kept in dynamic balance, the safe and smooth completion of a test is ensured, in addition, the three drainage pumps can be automatically controlled to be switched among the working modes in the automatic control mode, and the working efficiency is improved. When drainage is started and stopped among different working modes, different starting and stopping sequences are provided