| 摘要 |
Thyristor starting unit, consisting of switches, a thyristor switch connected to a two phase engine, diverted with a contactor, a sensor of the tape speed, an electronic control and regulation unit, in particular, it has a circuit for regulated power supply, which consists of a thyristor switch (3) turned on to the input terminals of the engine (5) connected to two supply phases, of which two inputs are connected with two outputs of the contact switch (1) via fuses (2) as well as the power supply circuit for the engine (5), including the contact switch (1) which is connected via a contactor (4) with two supply phases, Whereby the control and regulation block (BSR) is connected to the control inputs of the thyristor switch (3) and the sensor of tape speed (10), whilst its supply input is connected with the contact switch (1) via a programmed switch (8), which in addition are connected with the electromagnetic release (6) via fuses (7).<IMAGE>
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