Black-start governor hydraulic energy storage system power loss allowable operation time measuring device and method

The invention discloses a black-start speed regulator hydraulic energy storage system power loss allowable operation time measuring device which comprises a pressure measuring module, a processor module, a display module, a power supply module and a setting module. According to the device, the setting module controls the working state of the whole device and sets the lowest allowable pressure value of a speed regulator hydraulic energy storage system according to the rated parameters of a water turbine, the pressure measuring module converts measured 4-20mA current signals into voltage signalsand supplies the voltage signals to the processor module, the processor module restores an oil pressure value, measurement is started through the setting module, a worker operates the speed regulatorhydraulic energy storage system to lose power and execute a water turbine starting instruction, the processor module automatically records initial time, records a pressure value every other minute, records end time and stops