INSTALLATION FOR RESEARCH WORK MODES AC motors

摘要

The invention relates to electrical engineering, namely to the devices for electrical testing and can be used for experimental investigations emergency modes of operation of electric alternating current. Installation for research modes of AC electric motor comprises an AC and a DC machine, placed on the mounting frame. DC machine through the coupling is connected to an AC motor, the shaft of which one end is connected to a speed sensor. Each phase ac machine connected to the corresponding current sensor coupled to a respective controllable switch with a two-way conductivity which is connected to the corresponding terminal AC power source. The connection point of stator windings of the AC machines is coupled to a fourth current sensor, which is connected to a fourth controllable switch conducting two way associated with the neutral point of the AC power. To anchor the winding machine is connected fifth DC current sensor which is connected to the load unit, connected to the dc machine. A voltage sensor connected in parallel with the load block. All current sensors, voltage sensor and speed sensor, the control outputs of all the keys with the two-way connected to the conductive unit of electrical measurement and control. Technical result: the ability to test both nominal and accidental unbalance of operation of electric alternating current. 1 yl.