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Motor Performance Curve

This document summarizes the performance of a three-phase induction motor under varying loads. It includes a graph showing the motor's efficiency, power factor, current, and slip percentage at different percentages of rated output. The motor is a 40 kW, 380/660 V, 50 Hz, IP55 enclosure, squirrel cage motor with a rated current of 75.8/43.7 A, designed for continuous duty. Performance guarantees and test conditions are also noted.

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Vikrant
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434 views1 page

Motor Performance Curve

This document summarizes the performance of a three-phase induction motor under varying loads. It includes a graph showing the motor's efficiency, power factor, current, and slip percentage at different percentages of rated output. The motor is a 40 kW, 380/660 V, 50 Hz, IP55 enclosure, squirrel cage motor with a rated current of 75.8/43.7 A, designed for continuous duty. Performance guarantees and test conditions are also noted.

Uploaded by

Vikrant
Copyright
© © All Rights Reserved
We take content rights seriously. If you suspect this is your content, claim it here.
Available Formats
Download as PDF, TXT or read online on Scribd
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Nr.

: 64685/2008-A1
WEG Indstrias S.A. Date: 23-OCT-2008

PERFORMANCE UNDER LOAD


Three-phase Induction Motor - Squirrel Cage
100 1.0 C 0.0

C - Slip (%)
90 0.9 A 1.0

80 0.8 2.0

70 0.7 3.0
B
60 0.6 4.0

50 0.5 5.0

D - Current at 380V (A)


40 0.4 80

60
A - Efficiency (%)

D
B - Power factor

40

20

0
0 10 20 30 40 50 60 70 80 90 100 110 120 130
Percent of rated output
Customer : WEG GERMANY GMBH
Product code :
Product line : Special Motor

Output : 40 kW Duty cycle : S1


Frame : 250S/M Service factor : 1.00
Rated speed : 1480 rpm Design : N
Frequency : 50 Hz Enclosure : IP55 (TEFC)
Rated voltage : 380/660 V Locked rotor torque : 290 %
Insulation class : F Pull up torque : 215 %
Rated current : 75.8/43.7 A Breakdown torque : 330 %
Il/In : 8.9

Notes:
Item 1,2
DERATING FROM STANDARD EFFICIENCY MOTOR, 55 kW.

The figures given herewith are regarded as guaranteed values and applied to sinusoidal power supplied motors, within
permissible tolerances under IEC 60034-1.

Performed Checked Revision Approved


jstochmel jbreuer Nr.: 0 Date: 23-OCT-2008

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