ABB UNS 0017a-P.V (Order No.: HIEE305106R0001) is a high-performance control and drive unit module (also known as firing card / trigger board) manufactured in Switzerland. It is specially designed for the UNITROL series excitation control systems and serves as a core component of synchronous generator excitation systems.
The module is mainly responsible for accurately triggering thyristors (SCR) / IGBTs to achieve high-speed regulation of excitation current, stabilize generator terminal voltage, control reactive power, and provide comprehensive system protection. It is widely suitable for mainstream UNITROL 5000, UNITROL 6000 and other excitation systems in hydropower, thermal power, nuclear power and industrial captive power plants.
It features an industrial-grade modular design with high reliability, strong anti-interference capability and convenient communication integration.
Specifications
- Model: UNS 0017a-P.V
- Order No.: HIEE305106R0001
- Country of Origin: Switzerland
- Dimensions: 365 mm (L) × 255 mm (W) × 210 mm (H)
- Net Weight: 1.13 kg
- Operating Temperature: -20°C to +60°C
- Protection Class: IP20 (cabinet-mounted)
- Power Consumption: Max. 50 W
- Certifications: CE, UL, ISO 9001
Core Functional Features
Precision Excitation Control
- Supports multiple control modes: constant voltage, constant power factor (PF), constant reactive power (Q).
- Outputs high-precision trigger pulses to drive SCR/IGBT for fast closed-loop regulation of excitation current.
- Response time ≤ 1 ms, ensuring rapid suppression of voltage fluctuations.
Comprehensive Protection Mechanism
- Overvoltage (OV), undervoltage (UV), over-excitation (OEL), under-excitation (UEL) protection.
- V/Hz limitation, excitation winding overheating, short-circuit / overcurrent protection.
- Real-time fault diagnosis and status latching to prevent secondary equipment damage.
Communication & Monitoring
- Supports Modbus RTU/TCP, Profibus DP, IEC 61850, ABB S100 bus.
- Uploads real-time parameters including excitation voltage, current, power factor, temperature and fault codes.
- Compatible with remote monitoring and parameter setting in DCS/SCADA systems.
Hardware Design Advantages
- Multi-layer PCB with industrial-grade components, resistant to strong electromagnetic interference (EMC).
- Standard pluggable interface, supports hot-swapping (in selected configurations).
- 2-channel 24 VDC relay outputs with 5A@24VDC load capacity, capable of direct connection to actuators.
Application Scenarios
- Hydropower plants: Works with UNITROL 6000 + REG670 control systems for excitation control of hydro generators.
- Thermal power plants: Used in UNITROL 5000 + FEX series excitation systems to stabilize the voltage of turbo generators.
- Nuclear power / captive power plants: Applied in redundant configurations to meet ultra-high reliability and continuous operation requirements.
- Legacy system upgrades: Compatible with retrofits of old excitation systems such as PEX-400 to improve control accuracy.
Frequently Asked Questions (FAQ)
Q1: Is this module only suitable for UNITROL® P systems, or can it be used with UNITROL 1000/6000/8000?A1: It is dedicated to the UNITROL® P excitation system only. Its hardware interface, firmware and backplane communication are incompatible with other series and must not be mixed.
Q2: How many UA C096 AE1 modules are required for one UNITROL® P unit?A2: According to ABB’s official bill of materials, one module per unit is the standard configuration; no additional modules are needed.
Q3: Does the module support hot-swapping in case of failure?A3: In accordance with UNITROL® P maintenance specifications, replacement with power off is recommended. Mark wiring and back up parameters before operation to avoid short circuits or configuration loss.
Q4: How to verify authenticity and original origin?A4: Ensure the model UA C096 AE1 and material code HIEE300794R0001 match; genuine products are manufactured in Switzerland.
Q5: Can substitute models or third-party compatible boards be used?A5: The use of genuine ABB spare parts is strongly recommended. Third-party or substitute modules may have mismatched accuracy, isolation or EMC performance, causing control abnormalities, false protection trips or even unit shutdown.
Q6: What should be noted for storage and installation?A6: Store in a dry, dust-free, non-corrosive environment at 0–40℃. Install and secure strictly according to cabinet dimensions (381×128×49 mm) with reliable grounding, and follow the original factory wiring diagram for connections.
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