FIELD: electricity.SUBSTANCE: simulator contains at least one programmable DC power source, at least one programmable AC power source, an impulse noise generator, a switching unit, at least one measuring unit, a control unit, a local area network (LAN), a network switch, a data processing server, an insulation monitoring device, remote controls, at least one data acquisition controller, a precise time server connected to a GPS/GLONASS antenna. DC and AC power sources are made suitable for converting incoming electric power to their inputs into output currents with predefined parameters. The outputs of the current sources and the impulse noise generator are connected to the inputs of the switching unit, the outputs of which are configured to communicate with the corresponding inputs of at least one device under test and with at least one measuring unit. The control unit is made in form of an operator's computer work station (CNC), operator's CNC, a data processing server, a remote control, a data acquisition controller, a precise time server, inputs of current sources and an impulse noise generator are connected via LAN through a network switch. The insulation monitoring device is connected to at least one data acquisition controller and is configured to measure the insulation resistance of the simulator circuits. At least one measuring unit is configured to measure the signal characteristics at the output of the switching unit and is connected to a data acquisition controller. A remote control and the operator's CNC are additional configured to transmit information over the loudspeaker network.EFFECT: providing the possibility of carrying out a comprehensive check of various types of equipment on one stand, the possibility of conducting of parallel tests, increasing the flexibility and efficiency of changing the operating modes of the equipment during testing, the ability to provide a minimum delay in the conversion of electricity from the time of the transfer of the relevant command, and also to provide the visualization of measurements and results of tests in real time, a significant quantity reduction of equipment failures in operation due to the identification at the stage of factory testing of equipment containing unstable power supply elements.2 cl, 1 dwg

Supply mains simulator (sms)

FIELD: electricitySUBSTANCE: invention may be used to create rectifiers for controlled electric DC and AC drives for machines to increase their efficiency, and also on transformation substations for power supply to electrified railway roads, in electric metallurgical and chemical industry to reduce the value of pulsations of rectified voltage and to reduce content of higher harmonic components in an AC curve in a three-phase grid The proposed five-phase phase changer comprises a three-phase transformer, having three coils of the primary winding, which are connected as a star network, and are connected to the three-phase grid with a zero wire "0", six joined main coils of the secondary windings, one additional coil of secondary winding and taps from turns of the main coils of the secondary windings, which jointly with the output clamp of the additional coil of the secondary winding create a symmetrical five-phase system of voltages Each main coil of the secondary winding of the transformer is a side of a "hexagon" A, B, C, D, E, F, transforming a symmetrical three-phase system of voltages into a symmetrical six-phase system of voltages, at the same time the additional coil of the secondary winding with its beginning is connected to the unit of the "hexagon" circuit, which is not connected with the main coils of the secondary winding of the phase, on the rod of which there is the additional coil of the secondary windingEFFECT: reduced consumption of active materials during replacement of a three-phase group transformer with a three-rod one, improved weight and dimensional indices of a converter, simplified design of a converter and technology of its manufacturing2 dwg

Budennyj Vladimir F

Papers

Converter of number of phases of three-phase voltage system

Impulse noise simulator