Description
The ABB XTB750B01 (HUCD420038R0001 / HIEE440503P201) is a specialized interface and signal conditioning module utilized within ABB’s large-scale power excitation systems, most notably the UNITROL series. This board serves as a high-density connection point between the control electronics and the power converter sections. It is responsible for the reliable transmission of gate pulses to the thyristors and the accurate acquisition of current and voltage feedback from the generator’s excitation loop.
Discover our full range of control boards at the ABB Automation Products catalog.
Product Datasheet
Basic Specifications
- Brand: ABB
- Model Number: XTB750B01
- Global ID: HUCD420038R0001
- Part Number (P/N): HIEE440503P201
- Product Category: Excitation Signal Processing / Interface
- Compatible Systems: UNITROL 5000 / 6000
Physical Characteristics
- Dimensions: 233mm x 220mm x 25mm
- Weight: 0.68 kg
- Mounting: Standard 6U Subrack / Eurocard
- I/O Interface: High-density multi-pin backplane connectors and front-panel test points
Manufacturing & Logistics
- Country of Origin: Switzerland
- Compliance: CE, IEC 61800, IEEE 421 (Excitation Standards)
- Operating Temperature: -5°C to +70°C
- Storage Temperature: -40°C to +85°C
ABB XTB750B01 HUCD420038R0001 HIEE440503P201
ABB XTB750B01 HUCD420038R0001 HIEE440503P201
ABB XTB750B01 HUCD420038R0001 HIEE440503P201
Application Fields
The XTB750B01 is primarily deployed in Hydroelectric and Thermal Power Plants as a core component of the generator excitation system. It is used to facilitate the control of Static Excitation Systems (SES), where it manages the firing signals for large power bridges. Additionally, it is found in Industrial Synchronous Motor Drives for the mining and chemical sectors, where precise voltage regulation and reactive power control are mandatory for system stability.
Product Instructions
Installation must be carried out by trained personnel following strict ESD protection protocols. The module should be inserted into the specified slot of the excitation control rack; ensure the alignment handles are used to seat the board firmly into the backplane. Once secured, the front-panel fixing screws must be tightened to ensure the ground plane is properly connected to the chassis. Configuration of the XTB750B01 is hardware-dependent; ensure that any onboard dip-switches or jumpers match the original board being replaced. Calibration of feedback loops should be verified using a calibrated multimeter at the designated front-panel test points after system startup.
Comparison of Similar Models
The XTB750B01 (HUCD420038R0001) is the standard interface variant for medium-to-large power stacks. In comparison, the XTB752 series often includes additional fiber-optic isolation for higher voltage environments. The HIEE440503P201 is often compared to the P202 variant, where the latter may include updated surface-mount components or improved thermal tolerance for high-vibration environments. Compared to the older UNS series interface cards, the XTB750 offers higher signal density and integrated diagnostics for pulse-monitoring.
Frequently Asked Questions (Q&A)
Q: Can this board be used interchangeably with the HIEE440503P101? A: No, the “P201” and “P101” designations often refer to different hardware revisions or input/output scaling. You must verify the full part number and revision code to avoid signal measurement errors.
Q: What is the significance of the “HUCD” prefix? A: The “HUCD” identifier is the ABB internal drawing and manufacturing code, typically associated with electronic assemblies produced in their Swiss power electronics facility.
Q: Does this module require an external 5V DC supply? A: The XTB750B01 typically draws its operating power directly from the backplane (usually 15V
