The power supply device of passenger cars from the mains ~ 380 V, 50 Hz

摘要

The power supply device of carriages from the external network 380 V, 50 Hz, consisting of a transformer with primary and secondary windings, a connector for an external network ~ 380 V, 50 Hz, contacts of which are connected to the input of a circuit breaker, the output of which is connected to the contactor entry with closing contacts and the contactor coil is connected to the output of the control unit according to the utility model contactor output is connected to the primary winding terminals of the transformer and the secondary winding of the transformer is provided with a number of odes, which are connected to the input of the controlled rectifier, whose output is connected to the bus bars for DC current and the battery of the car battery, and its control elements are connected to the outputs of the control unit.; Besides:; - a controlled rectifier is designed as a diode rectifier, contactor and switching device with multiple inputs and one output, each input connected to a corresponding transformer tap of the secondary winding and the output to the input of the diode rectifier;; - a controlled rectifier made in the form of several thyristor (optotiristornyh) rectifiers, whose outputs are connected in parallel, and the inputs are connected to respective taps of the secondary winding of the transformer;; - a controlled rectifier made in the form of one rectifier diode and several thyristor (optotiristornyh) rectifiers, the outputs of rectifiers connected in parallel, and the inputs are connected to respective taps of the transformer secondary winding, the diode rectifier input connected to taps with a lower number of turns;; - the circuit breaker has a built-in differential protection from leakage to the car body;; - all electrical devices housed in one undercar box.