TECHNICAL CHARACTERISTICS 500 STK ALTERNATORS
TECHNICAL CHARACTERISTICS 500 STK ALTERNATORS
The document provides detailed specifications for the 500STK series alternators, including models 500STK2M, 500STK3M, 500STK4M, 500STK6M, and 500STK8M. Key parameters include rated power, input torque, efficiency, current, and voltage at both rated and half speed. The alternators operate optimally at an ambient temperature of 40°C with a wind speed of 10 m/s for cooling.
Performance Characteristics:
The alternators are designed to function in sine wave mode with a unity power factor. The document includes performance curves illustrating the relationship between voltage, torque, efficiency, and speed. Rated power and efficiency are provided for both full and half-speed operations.
Electrical and Mechanical Properties:
The document details electrical properties such as phase resistance, phase inductance, and cogging torque. Mechanical properties include rotor inertia and weight. The alternators have a specified number of poles and require specific power cable sections and diameters for optimal performance.
Installation and Operational Guidelines:
The stator housing should be in contact with ambient air or integrated with a metallic armature. It should be secured on a metallic frame with an area twice the cross-section of the housing. Voltage levels can be adapted based on application needs, and specific guidelines are provided for cable configurations based on current levels.
Graphical Data:
A graph is included to show the power-speed relationship for each alternator model, highlighting the power output at various speeds in RPM.
Catalog excerpts
TECHNICAL CHARACTERISTICS 500 STK ALTERNATORS See also the curves of Voltage, Torque, Efficiency vs Speed Rated Pow er at Half speed 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) Rated Power at half speed (1)(2) Input torque at half speed (1)(2) Efficiency at half speed (1)(2) % Number of poles (number of pairs of poles) Cogging torque N.m Phase résistance at 20° C Ohm Phase inductance (5) mH Voltage at no load (back emf) at 20° (4) C V Rotor inertia 10-3 Kg.m2 Weight Kg Power cable square section (6) mm2 Power cable diameter mm 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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