Device for control of 2-speed motors in the shaft WDCV-1-160R/400

The device is designed for remote control two speed asynchronous motor reverse at a reduced speed. Used for odnoprovodnoi scraper conveyor, belt pipeline, cable-chair roads and other mining equipment, equipped with asynchronous motor with squirrel cage, in conditions of mines, hazardous gas and dust.When managing a two-speed motor the device provides auto-translation mode with reduced speed (the motor 105 kW) to high speed (motor to 315к W).

The device is mass-produced according to TU U 27.1-00165675-026:2015.

The device provides the following functions:

- select the mode of operation of the "Work – Repair";

- in the "Work"- inclusion of motor shunting (low) speed, acceleration motor time, during (8 – 10), followed the shift motor is working (great) speed. Reversible switching of the electric motor is carried out only on shunting speed.

- in the "Repair" the startup and operation of the electric motor, in direct and reverse inclusion is only on shunting speed.

Electric diagram of the device is ensured by:

- protection from short-circuit currents extending from the device power circuits and lighting the alarm if it is triggered, current overload protection and light alarm when it is triggered;

electric lock preventing the inclusion of the device when the insulation resistance in outgoing power circuits below 35 kω when the voltage of 660 V and 110 ohms at voltage 1140V and light alarm when activated locks;

- protection when you open or when you increase the resistance grounding circuit between the device and the motor to a value more than 50 Ohms;

check the operation of the device prior insulation monitoring;

protection joining by heating of windings of electric motors with built-in in them of PTC resistors;

- zero protection;

- protection from the loss of control in-circuit wiring of remote control circuit each other;

- protection from self-energizing device at short (less than 1) increase voltage supply circuit up to 150 % of the rated value;

 check the maximum current protection;

- protection of the motor when one phase is open and the alarm when it is triggered;

- triggering of network wide protection against leaks to ground in case welding of the power contacts of the vacuum contactors in any of the three phase;

- triggering of network wide protection against leaks to ground in case the occurrence of leakage to earth in any of the windings two-speed of the electric motor;

- the intrinsically safe circuits of remote control.

1. Joint apply of the two devices can be used to drive control of the scraper conveyor of lava with the ability to control device from hardware ASSOU or CD-A.

2. The device is designed with using vacuum contactors FGUP PO Sever and modern blocks of protection and control.

3. The cost of the device is much lower than foreign counterparts.

Device with marking of explosion protection PB 3ВИа designed for use in coal the mines, hazardous gas and dust.

Climatic modification and category of placement devices for УХЛ5 according to GOST 15150-69.

Temperature the environment from minus 10 °C to 35 °C.

- Relative humidity (98±2)% at temperature 35 °C With condensation.

- The degree enclosure protection devices of IR54 at THST.

The device ensures reliable operation in continuous, falteringly-long, short-term and intermittent modes.

Device work normally under voltage fluctuations of the electric network from 85 % to 110 % of nominal.

The design of the shell of the device is made with the latest requirements ex: quick opening cover, switch disconnector, mounted in a separate chamber, the blockiness of the design and the interchangeability of similar blocks.

Device equipped with a display unit, providing information about the status of the device triggered channel overcurrent protection channel overcurrent and failed start-up, open-phase mode, alarm and warning the level of heating of the motor windings, reducing the insulation resistance exhaust connection.