The soft starter Sirius 3RW30
| Price: | 2 599 UAH |
| Company: | OOO 'Elektroyunit' |
| Seller: |  Tat'yana |
| Phones: |  0577380507 Show phone |
| Address: | Ukraine, Kharkivs'ka Oblast', Kharkiv |
The soft starter Sirius 3RW30
- Soft start and stop motor (for 3RW30 only soft start, coasting is free);
- continuously variable start;
- reducing the inrush current at start-up;
- load reduction and voltage SAG at start-up;
- reduction of mechanical loads on the drive components;
- significant savings of space and wiring compared with conventional starters
- maintenance-free power switching elements;
- simple operation;
- compatibility with other devices SIRIUS modular system
In devices of the 3RW30 control with two-phase control method is used Polarity Balancing (balancing phase), which prevents the appearance in the starting current of DC components. Fundamentally, the current flowing in unmanageable phase of these devices, is formed by summing the currents of the two controlled phases. As a result, under the influence of physical processes is the asymmetric distribution of the three phase currents during acceleration of the engine. Even though the phenomenon is uncontrollable, for most applications it is not critical.
In addition to this asymmetry, the control of power semiconductor devices also causes the already mentioned DC components, which are at an initial voltage of less than 50% of the nominal operating voltage can lead to a strong noise in the engine. The method of control used in the soft start devices, eliminates these constants during acceleration of the engine and thus prevents the brake torque.
It provides smooth increase of rpm, torque and current, allowing a smooth start of the engine in two phases. In this case the acoustic performance of such a start-up approach to indicators soft start with three manageable phases. This is possible due to the fact that during acceleration of the engine there is a continuous dynamic alignment and balancing of the half-wave currents of different polarity.
- Smooth start with a linear change in voltage; setting range:
- - the starting voltage Us 40 to 100%;
- - acceleration time tR from 0 to 20 C.
- In-built system bypass contacts to minimize power loss.
- Setting two rotary regulators.
- Simple installation and commissioning.
- Voltage 50/60 Hz, 200 to 480 V.
- Two versions of devices for different control voltage: 24 V AC/DC 110...230 V AC/DC.
- Wide temperature range: -25 to +60° C.
- Convenient control and the possibility of signal processing device of the other system components due to the integrated block contact.
