The TF series consists of large three-phase synchronous generators, while the T series consists of large three-phase synchronous motors.
TF series synchronous generators can be driven by electric motors, steam turbines, internal combustion engines, or other prime movers to generate electricity. The rated power factor of this series of generators is 0.8 (lagging).
T series synchronous motors are suitable for driving fans, water pumps, motor-generator sets, and other general-purpose machinery. The rated voltage of this series of motors is 6000V, and can also be manufactured as 10000V upon user request. The rated frequency is 50Hz, and the rated power factor is 0.9 (leading). The motors allow direct-on-line starting at full voltage, and during starting, a starting resistor with a resistance 10 times that of the field winding should be connected in series in the rotor circuit.
TF and T series synchronous machines have a horizontal structure. Cooling methods include open self-ventilated, ducted or semi-ducted ventilation, and closed self-circulating ventilation. T series motors can be manufactured with a single shaft extension or with double shaft extensions. The direction of rotation is counterclockwise when viewed from the slip ring end. The direction of rotation can be changed as required, but the fan blades of the motor should be correspondingly adjusted.
Frame: Welded as an integral structure from steel plates. The frame and bearing housings are separately fixed onto a baseplate welded from steel plates.
Stator core: Laminated from 0.5mm thick silicon steel sector-shaped punchings, with insulating varnish applied on both sides of the punchings. The stator core is fixed to the frame using tie bolts or dovetail ribs.
Stator windings: The windings are of the double-layer lap type, Class F insulated, with anti-corona measures. The coil ends are firmly banded and the entire winding is treated by integral dipping and baking.
Magnetic poles: Laminated from thin steel plate punchings, with pole coils mounted on the pole cores. The complete poles are mounted on the rotor spider. Pole coils: Wound from flat copper wire, Class F insulated after treatment.
Bearings: Composed of cast iron bearing housings and bearing shells lined with bearing alloy. The lubrication method is oil ring self-lubrication or compound lubrication with an external oil supply system.
Brushes and slip rings: The slip rings are of an assembled structure. Brushes are mounted in constant-pressure brush holders, connected by conductive plates, and the entire brush rig is fixed to the side of the bearing.
Excitation system: The excitation equipment for TF and T series synchronous machines can be supplied by our factory as a matching package.
