11KV 10MW COMPRESSOR MOTOR LOAD SET-POINT CHANGE ANALYSIS

As part of a gas compressor upgrade scope - JMB Technical undertook a detailed analysis of the existing gas compressor prime movers.

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In order to confirm that the existing motors would be suitable for use with the new gas compressors - despite no curves of the motors characteristics being available, JMB Technical undertook a first principles level study to determine how the motors would behave at a new operating set point.

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JMB Technical were able to find the motor equivalent circuit diagram figures and from this derived the graphs shown in the animation on this page.

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JMB Technical were able to determine that the motor had sufficient torque to accelerate the compressor up to its operational speed, sufficient cooling to confirm that at a higher load set point sufficient cooling was available as well as conduct a review of the existing protection settings to confirm that no 11kV cubicle modifications were required.

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If you have a complex electrical engineering problem like this or any other, JMB Technical can provide the cost effective solutions you need.