DEVICE FOR MEASURING ELECTRICAL ENERGY SUPPLIED TO RAILROAD POWER TRACTION PLANT Russian patent published in 2012 - IPC G01R31/00 

FIELD: electricity.

SUBSTANCE: measuring device of electrical energy supplied to railroad traction plant through high voltage line (1) includes the following: supply current load measuring devices (5, 26) and device (12, 27) for measuring the voltage of that power supply, optic electronic inverters (22a, 22b) for low voltage supply required for operation of the above measuring devices; at that, the above optic electronic inverters (22a, 22b) are connected through optic fibres (21a, 21b) to electrooptical transducer (20) for them to be connected to supply voltage, and outputs of measuring devices includes optic fibres (9, 19) connected to optoelectronic transducer (10) for them to be connected to electronic system. At that, measuring devices are installed in insulator (25) through which high voltage line (L) of locomotive roof passes; at that, high voltage environment is arranged in upper cavity (28) made in insulator (25), and low voltage environment is arranged in lower cavity (29) of that insulator, and connections between various elements of the device are performed between those two cavities through the above optic fibres.

EFFECT: decreasing dimensions of the device.

2 cl, 2 dwg