UFC789AE 38HE014022P102 Excitation Control Board

UFC789AE 38HE014022P102 Excitation Control Board

Product Details Introduction

UFC789AE 38HE014022P102 is an Excitation Control Board produced by ABB, mainly used for magnetic field (excitation) control of synchronous motors, generators, or large variable frequency drive systems. The following is a detailed technical analysis:

1. Basic product information

model: UFC789AE

Order number: 38HE014022P102 (ABB unique identifier)

Brand: ABB (leader in power and industrial automation)

Type: Excitation Control Board

Typical applications:

Magnetic field current regulation of synchronous motors/generators

Excitation unit of high-voltage frequency converter (such as ACS5000)

Power factor control of industrial drive systems (such as compressors, pumps)

2. Core functions

✅  Precise control of magnetic field current (PID regulation, ± 0.5% accuracy)

✅  Reactive power (VAR) compensation (for grid stability)

✅  Automatic Voltage Regulation (AVR)

✅  Protection functions: overexcitation/underexcitation, out of step protection, magnetic field short circuit detection

✅  Communication interface: Supports Modbus, Profibus, or ABB specific protocols

3. Typical application scenarios

(1) Electricity generation and transmission distribution

Excitation control system for synchronous generators (thermal power/hydropower/nuclear power)

Voltage establishment during black start process of power grid

(2) Industrial Drive System

Large synchronous motor drive (such as compressors, rolling mills)

Excitation power management of high-voltage frequency converters (such as ACS5000)

(3) In the field of new energy

Rotor excitation control of doubly fed wind turbine generator

Dynamic reactive power compensation of photovoltaic inverter station

Product imag

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