FIELD: measurement technology.
SUBSTANCE: invention relates to method and system of diagnostics of power plant with two multi-stage turbo compressors. Diagnostic technique for power plant equipped with at least one turbo compressor (2) of low pressure and at least one turbo compressor (8) of high pressure, where turbo compressors are multi-stage and supply internal combustion engine, and the above power plant is equipped with vehicle, according to the invention, contains the following steps wherein the following shall be determined: power plant operation mode, power of high pressure turbine (13) depending on the first set of data and depending on operating mode power of high pressure turbine (13) depending on the second set of data, fault criterion is determined as ratio between the power of high pressure turbine (13) depending on the first set of data and power of high pressure turbine (13) depending on the second set of data, and the fault criterion is compared with stored values to determine whether the fault is present.
EFFECT: method and diagnostic system of power plant with two multi-stage turbo compressors.
10 cl, 4 dwg
