Torspec International

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Torspec variable speed drives have been applied successfully
all over the world.

Serving the world with industrial versatility. Torspec variable speed drives offer the ultimate in drive reliability with many years of applications experience. Its universal design simplifies installations and offers a cost effective solution to all your variable speed drive demands.

variable speed drives offer a wide operating speed range with high starting torque and there is no need for a derating factor. The electro-magnetic principle combined with a simple closed loop control delivers good speed regulation with a smooth transition of torque. The adjacent cross-section illustrates how simple our drive operates.

The torque tube assembly (B) which is attached to a hub (A) on the motor shaft always operates at full speed thereby providing 100% cooling throughout the speed range. The motor can start under no load. The fixed DC coil (D) is attached to the stator (E) which is attached to the main casing (F). When the coil is energized, a magnetic flux is established traveling through the stator, casing, torque tube and polewheel. The polewheel (C) is fixed to the inner end of the output shaft (H). As the magnetic flux passes through the torque tube, the polewheel is attracted to the torque tube. This causes the output shaft to rotate. The built-in tacho generator (G) provided a linear speed signal to the controller allowing the closed loop control system to regulate the speed.

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