• JSL Industries Limited

Vertical Hollow Shaft Squirrel Cage Screen Protected Drip Proof Motors

JSL Industries Ltd offers vertical hollow shaft squirrel cage screen protected drip proof motors. These motors find special applications in driving vertical turbines, propellers, mixed and non-clog pumps. Specifications: 'Jyoti' VHS motors are continuously rated (S1 duty) as per IS: 325 and are suitable to operate on 3-phase 415 V ±6%, 50 Hz ±3% electric supply. Combined voltage and frequency variation on load is ±6%. The performance generally conforms to IS: 325. The motors are available in ratings up to 45 kW/60 HP, 1500 RPM and 15 kW/20 HP – 3000 RPM, in frame sizes up to 200. The motors are housed in drip-proof enclosure having degree of protection IP-22 as per 4691. Top cover dome and metallic screen are specially designed to give protection against dripping liquids and falling objects. Stator and rotor stacks are made of low-loss silicon steel laminated stampings to minimise iron losses. Stator winding is of polyester super enamelled copper wires conforming to IS:13730, Part-III or IS:4800 (part V). Class `B' insulating materials suitable for working temperature of 130°C are used as insulation to provide electrical, thermal and mechanical strength to the windings. Carefully selected angular contact, heavy duty bearings are located at the top to take the thrust load and deep groove ball bearing is used at the bottom of the motor. The optimum cooling is affected by guided airflow generated by rotor fins/fan. All the motors are tested during manufacturing and before despatch, in accordance with IS-325. In case motors are required for wider voltage variations for operating at different voltages, the same can be offered on request.