GE MS90376-12Y server driver module

GE Vernova’s Power Conversion business designs energy conversion

systems that provide tailor-made solutions for mission-critical applications

Power Conversion offers integrated solutions for conventional

fixed speed, as well as variable speed doubly-fed (as 3kV or

6kV converter technology) or fully-fed systems, helping to

minimize cost, maximize energy output and provide optimal grid support.

The 489 uses high speed dual slope differential protection to detect and clear stator phase faults.

Stator phase faults. Advanced CT saturation detection algorithms provide

additional supervision through the use of directional checks that

ensures that the fault occurs inside the generator before triggering a trip,

thus maintaining immunity to saturation that may be caused by external disturbances.

Power Conversion - a global partner

with a local footprint

Our regional presence with key facilities and the right

partners allows us to support your hydro business worldwide.

All regions are directly connected to our Center of

Excellence (CoE) for hydro pump storage in Berlin, Germany,

where we bundle competencies and use our knowledge

to focus on the best solutions for our customers. Due to

regional manufacturing, engineering and service facilities in

the US and Europe we can deliver tailor-made solutions with

high domestic content.

Alternate Phase Distance

Two independent phase distance elements provide time-delayed backup protection

for generator faults that are not cleared by the main system and generator protection.

This distance characteristic compensates for unit delta/shunt power transformers

located between the generator and the end of the protection zone.

Sensitive Directional Power

The 489 provides low forward and reverse power elements to prevent generator

movement from damaging the prime mover.

Each element has separate power pickup level and operating delay settings for alarms and trips.

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