Excitation control unit system 151X1235DB15SA03

151X1235DB15SA03 EX2100e excitation control regulator system is GE’s latest advanced control system

for steam, gas or hydroelectric generators, suitable for new units and modified units.

Control hardware and software design are closely coordinated with

GE’s system and control engineering to ensure a true system solution.

Integration between the excitation control system, turbine control system,

static start control system, integrated control system (ICS) and human machine interface (HMI) is

seamless.

For stand-alone retrofit applications, integration with the customer’s distributed control system (DCS) is

supported via serial or Modbus® Ethernet.

This document is specifically for the application of the 35 A and 120 A (nominal) series EX2100e control

regulator systems.

Control Hardware

The 151X1235DB15SA03 EX2100e regulator system is available in multiple configurations to

provide control flexibility for thyristor and regulator systems.

For small regulator systems, two pulse width modulation (PWM) power converter modules

use insulated gate bipolar transistors (IGBTs) to provide up to 35 A or 120 A nominal output.

These systems can support the following applications:

• Saturated current transformer/power voltage transformer (SCT/PPT) regulators

• Brushless exciter regulators

• Direct current (dc) rotary exciter regulators