IAEC-1000
Excitation System
A fully digital microcomputer-based excitation system for generator units below 10 MW, featuring an integrated single-cabinet design for regulation, power, and de-excitation functions. Designed for reliable operation, easy maintenance, and flexible application in small hydropower and thermal power plants.

Overview
The IAEC-1000 is a fully digital microcomputer-based excitation system developed by NSD Electric for generator units below 10 MW. It features an integrated single-cabinet design combining regulation, power, and de-excitation functions, with a standardized and modular structure for small hydropower and thermal power generator units.

Features
1. 32-bit multi-core high-speed processor up to 600 MHz
2. Integrated structure with modular installation for easy disassembly and maintenance
3. Supports three excitation start-up methods, four operating modes, and five protection limit functions
4. Built-in IEC 61850 communication protocol
5. IEC 61131-3 compliant graphical programming, supporting FBD, LD, IL, ST, SFC, and C language
6. Optional wired or wireless remote real-time diagnosis and maintenance

Key Configuration
1. Two sets of 32-bit industrial-grade controllers
2. Chinese touchscreen HMI
3. One set of 600 A three-phase fully controlled rectifier bridge; two sets optional
4. One set of 630 A de-excitation switch with linear resistor; non-linear resistor optional

