Description
ABB UNITROL1000 3BHE014557R0003
Technical Specifications:
- Order Code: 3BHE014557R0003.
- Control Algorithms: Advanced PID, PSS (Power System Stabilizer), and V/Hz control.
- Communication: Modbus, PROFIBUS, or Ethernet interfaces.
- Redundancy: Supports redundant power supplies and communication paths.
Functional Features:
- Automatic Voltage Regulation (AVR): Maintains precise generator terminal voltage.
- Reactive Power Control: Manages power factor and reactive load sharing.
- Comprehensive Protection: Field ground fault, over-excitation, and under-frequency protection.
- Data Logging: Records events and trends for post-fault analysis.
Application Scenarios:
- Main generator excitation in thermal and hydro power plants.
- Large synchronous motor drives in mining and marine applications.
- Cogeneration and distributed energy resources.
Material Composition & Structural Characteristics:
- Enclosure: IP54 or higher rated industrial enclosure.
- Display: LCD or LED display for local parameter viewing.
- Interfaces: Front-panel keypad and rear communication ports.
Working Principle:
The controller measures generator voltage and current, calculates the required excitation level, and adjusts the field current via thyristor bridges. It continuously monitors system health and executes protection logic if abnormal conditions are detected.
Installation Requirements:
- Install in a clean, dry environment within specified temperature limits.
- Use shielded cables for all measurement and control signals.
- Perform factory reset and parameter configuration before commissioning.
Usage Precautions:
- Only qualified personnel should perform parameter adjustments.
- Regularly test protection functions during scheduled maintenance.
- Keep firmware and backup parameters updated and documented.
