Asynchronous explosion-proof EKVD motors are designed for operation from an alternating current network in the composition of drives of cleaning combines and other machines and mechanisms with similar operating modes including in the frequency-controlled drive for operation in mines and mines dangerous for mine gas content (methane) and coal dust.
The engine EKVD4-180TV is designed to drive the working bodies of coal-cleaning combines equipped with electric motors SG7W455L-4 produced by Damel (Poland), the EKVD5-285T engine is designed to drive a coal-mining machine for long lavas 4SL20 (manufactured by JOY MINING MACHINERY), EKVD3.5- 22-01 is designed to drive the feeding of the coal-mining machine MB410E produced by T Mаchinery a.s. (Czech Republic).
Technical characteristics of electric motors are given in the table. The work in the frequency-controlled drive is specified when ordering.
The type of engines climatic design - У5. The type and level of explosion protection of engines: РВ 3ВАа (for the internal market), РВ ЕхdiaI (for deliveries to the CIS countries). Insulation of motor windings - moisture-resistant level 1 according to GOST 24719, heat resistance class H according to GOST 8865. Engine cooling method - ICW37 (water).
The ribbon mechanical connector type SLM is for rubber-fabric conveyor belts. The connector is designed for docking conveyor belts which are mounted on conveyors that are operated in mines, sections, quarries and dressing plants including coal mines that are hazardous for gas and / or dust, both with normal and difficult operating conditions.
Clamping brackets of the connector are located in the web belt so that not one of the connector elements appears to the surface - this allows the tape web to remain perfectly flat, thereby the connector does not destroy scrapers and cleaners, main rollers, tension and drive drums.
The engines are designed to operate from a three-phase 50 Hz alternating current network as a drive for stationary machines and mechanisms in underground workings of coal and shale mines that are dangerous for gas (methane) and (or) coal dust.
Climatic performance in accordance with GOST 15150-69: for delivery to the domestic market - U2.5, for export to the CIS countries - UHL2.5
Method of cooling engines IC0151 in accordance with GOST 20459-87.
Engines with a power of up to 200 kW are manufactured for voltages of 380/660 and 1140/660 V, engines with a power of more than 200 kW - for a voltage of 1140/660 V.
The level of protection IP54 is according to GOST 17494-87, the level of protection of the external ventilator from the side of the air inlet is IP20.
Type and level of explosion protection - РВ-3VIA according to GOST 12.2.020-76 for deliveries to the domestic market and RS ExdiaI according to GOST R 51330.0-99 - for deliveries to CIS countries.
Asynchronous motors of ADVR and ADVRP types are designed for operation from a 50 Hz alternating current network as a drive for various mechanisms in mines that are dangerous for the content of mine gas (methane) and (or) coal dust in accordance with the "Safety Rules for Coal Mines" NPAOP 10.1-1.01-05. Engines ADVR-M are designed for driving fans of local airing.
Type of climatic design of engines which are manufactured for the domestic market is U2, 5 and for delivery to the CIS countries - U2.5; UHL2.5 in accordance with GOST 15150.
The engines satisfy the requirements of GOST 183, GOST 22782.0, GOST 22782.5, GOST 22782.6, GOST 24719, GOST R 51330.0, GOST R 51330.1, GOST R 51330.10, GOST R 51330.20.
The motors are manufactured for voltage 1140, 660, 380 V.
Method of cooling of engines - IСА0141 according to GOST 20459.
The level of protection of motors and terminal boxes is IP54 according to GOST 17494, GOST 14254, external fan (if any) on the side of the air inlet - IP20.
The motors have thermal protection of stator windings of type TP111 in accordance with GOST 27888 and GOST 27917. The electric circuit of thermal protection is intrinsically safe according to GOST 22782.5 (ia according to GOST R 51330.10). The temperature is 160-165 ° C for the insulating class H and 140-145 ° C for the insulation class F.
Type and level of explosion protection of engines:
RV 3VIa - for deliveries to the domestic market;
РВ ЕхdіаI - for export to the CIS countries.