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TECHNICAL CHARACTERISTICS 145 STK ALTERNATORS

TECHNICAL CHARACTERISTICS 145 STK ALTERNATORS

Product catalog summary
Technical Specifications of 145 STK Alternators

Rated Speed and Power:
The alternators are available in four models: 145STK2M, 145STK4M, 145STK6M, and 145STK8M, each with rated speeds of 650 and 1500 RPM. The rated power output varies across models, with the 145STK2M producing between 571W and 1752W, and the 145STK8M producing between 2633W and 6462W.

Input Torque and Efficiency:
Input torque at rated speed ranges from 11.2 N.m to 47.8 N.m, with efficiency percentages ranging from 75% to 88% depending on the model and speed.

Electrical Characteristics:
Voltage at rated power varies slightly between models, with values such as 244V for the 145STK2M and 248V for the 145STK8M. Phase resistance and inductance are also specified, with resistance ranging from 0.51 Ohm to 19.8 Ohm and inductance from 4.1 mH to 105 mH.

Operational Conditions:
The alternators are designed to operate at an ambient temperature of 40°C with a wind speed of 10 m/s for cooling. The winding temperature rise should be less than 100°C. The stator housing must be in contact with ambient air or a metallic armature.

Additional Notes:
Operation is in sine wave mode with unity power factor. Voltage levels can be adapted according to application needs. For currents over 53 Amps, four single wire outputs are recommended.

Graphical Data:
The document includes a graph showing the relationship between power and speed for each alternator model, indicating performance across different RPMs.
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Catalog excerpts

TECHNICAL CHARACTERISTICS 145 STK ALTERNATORS-1

Input torque at half speed (1)(2) Rated Pow er at Half speed Rated Power at half speed (1)(2) Rated Power at Rated speed Rated speed Rated power (1)(2) Input torque at rated speed(1)(2) Efficiency at rated power (1)(2) Current at rated power (1) Voltage at rated power (1)(2)(3) Efficiency at half speed (1)(2) Number of poles (number of pairs of poles) Cogging torque Phase résistance at 20°C Phase inductance (5) Voltage at no load (back emf) at 20°C (4) Rotor inertia Weight Power cable square section (6) Power cable diameter Alternator 145STK Power - Speed 6500 6000 Speed in RPM (1) Ambient temperature 40°C Wind speed 10 m/s cooling the housing Winding temperature rise < 100°C Stator housing in contact with the ambient air or integral on all its peripheral area with a metallic armature in contact with the ambient air Stator housing secured on a metallic frame getting an area equal to twice the cross section of the housing (2) Operation in sine wave mode with unity power factor (3) Line to line voltage. Voltage level may be adapted according to the application; please contact us (4) Line to line voltage, alternator at no load, rated speed and at 20°C (5) For current at rated power (6) For curents lower than 53 Amps, one cable For curents over 53 Amps, four single wires output (highlighted in the table) Automatique

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