TMEIC MV Motor & Drive Solutions for Power Generation

Introduction to TMEIC

A Global network

TMEIC is built on a proud heritage in the industrial automation,

control and drive systems business.  TMEIC’s global business

employs more than 2.200 employees, with sales exceeding $2.4

billion, and specializes in Metals, Oil & Gas, Material Handling,

Power Generation, Cement, Mining, Paper and other industrial

markets.

TMEIC Corporation, headquartered in Roanoke, Virginia, designs,

develops and engineers advanced automation/ variable

frequency drive systems, motors and generators.

Customer Service

At TMEIC, our focus is on the customer, working to provide

superior products and excellent service, delivering customer

success every project, every time.

Variable Frequency Drives in Electric Power Plants

Every step of the way, from the fuel to the grid, variable

frequency drives (VFDs) are used to smoothly start large

motors and continuously adjust the speed as required by

the process. Induction and synchronous motors driving

boiler feed pumps, forced draft fans, induced draft fans,

service water pumps, and conveyors use VFDs to provide

high power, accurate speed control, and effi cient fl ow

control with signifi cant energy savings.

Controlling fan fl ow by adjusting speed avoids wasting

energy in fl ow control vanes, dampers, and louvers.

When large fl ows must be controlled and motor energy

consumption is signifi cant, varying the motor speed is

the answer.  With large machines, the electrical power

savings can amount to hundreds of thousands of dollars

per year.  In addition, the drives smoothly start the motors,

protecting them against starting inrush currents, thus

avoiding thermal stress and extending motor life.

Typical Drive Applications in the Power Plant

Variable frequency drives are used to control the speed of fans,

pumps, and mills in power plants.  VFDs are also used to smoothly

start large motors, synchronize, and connect them across the line.

The following seven pages describe four typical applications and

present the reasons why electric drives were chosen.

These selected drive applications are:

• Induced and forced draft fans

• Cooling tower fans and pumps

• Boiler feed pumps

• Service water pumps

• Boiler environmental control pumps/fans