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TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION

TMEIC GE Drive ModernizationsHouston, TexasFebruary 9‐10, 2011

TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION

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Variable Speed DrivesSince the 1960s, the installed base of electronic high capacity adjustable variable speed drives (ASD) has grown from a few applications to tens of thousands of installations globally

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Variable Speed DrivesAdvances in communications, micro- processing, high-speed switching and cooling systems have made these products more reliable, smaller, and more commercially acceptable in industry.

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Variable Speed DrivesTrends in technology from the LCI type to the PWM VSI type drives are leaving the installed base of LCI drives in a condition of obsolescence.

Twenty (20) Year Trend of HighCapacity Drives

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Product LifeThe technology trends make components obsolete. Normal life-cycle fatigue of components make the likelihood that someday there will be a need to replace.

How many years will VFD operate?

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1955 1965 1975 1985 1995 2005

Gate Turn OffThyristor

GTO

Integrated GateCommutated Thyristor

GCT, IGCT

Diode (D)

SiliconControlled

Rectifier SCR

Injection EnhancedGate Transistor

IEGT

Low Voltage InsulatedGate Bipolar Transistor

IGBT

Bipolar PowerTransistor

BPT SiC devicesare expectedin the future

CycloconverterIEGT Inverter

GCT Inverter

IGBT InverterDC

DC

Auxiliary Drives

High Capacity Drives

LCI

Power Device: SCR IGBT, IEGT, GCTMotor drive: DC drive AC drive, Voltage Source Inverter

Product Life

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Product Life E x t e n s i o n

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Product Life E x t e n s i o n

LCI Control Upgrade

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Product Life E x t e n s i o n

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Product Life E x t e n s i o n

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Product Life E x t e n s i o n

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Product Life E x t e n s i o n

Customer FeedbackNRGInternational PaperSouthern Company ServicesDynegyMoss Landing, LLCSouthern CompanyCF IndustriesAlabama Power CompanySpectra EnergyLower Colorado River Authority

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TMEIC GE High Capacity Drives

We Drive Success!