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Description
Legacy high-capacity digital excitation (service).
Did you know
- The ABB UNITROL 5000 is a digital synchronous generator static excitation system introduced in 1998, representing the fifth generation of the UNITROL series. It incorporates core technologies from its predecessors, UNITROL F and UNITROL P, alongside advanced digital control research such as DSP digital signal processing and intelligent current sharing for thyristor rectifier bridges.
- The UNITROL 5000 is positioned as a powerful product within ABB's UNITROL series of excitation systems, suitable for medium and large synchronous machines. It is a more advanced system compared to the UNITROL 1000 series, which is designed for smaller generators (100 kVA to 80 MVA) and offers compact solutions. The UNITROL 6000 series is a newer generation, offering flexible, high-performance excitation for large power plants and demanding industries, with higher excitation current capabilities.
- The UNITROL 5000 is chosen for its robust microprocessor-based voltage regulation, offering dual-channel redundancy and intelligent power converter electronics for active current equalization and 4-quadrant operation. Its modular 'building-block system' design allows for high quality and shorter delivery times, with over 80% of systems built from type-tested components.
| Model | Generator Size / Field Current | Control Technology | Redundancy |
|---|---|---|---|
| UNITROL 5000 | Medium to large synchronous machines; 1000 ADC to >10,000 ADC field current (SES); 16 2/3 Hz to 400 Hz supply frequency (AVR) | Microprocessor-based, DSP digital signal processing | Dual-channel system with backup current regulator, up to 8 parallel power converters |
| UNITROL 1000 Series (e.g., 1005, 1010, 1020) | 100 kVA to 80 MVA synchronous machines; up to 40 A excitation current (UNITROL 1000-PM40) | Microprocessor-based | Dual channel support (in some versions like UNITROL 1020) |
| UNITROL 6000 Series | All kinds and sizes of synchronous generators and motors; up to ~10,000 A excitation current (SES); up to 1,500 MW machines | AC 800PEC high performance processor family | Single/double channel configuration (additional backup channel on request) |
Competitive Models
^ZVCX DSEA106
Original DSEA106 (pre-MKII, legacy service).
^ZVEF SE500
Higher-capacity analog AVR.
^ZVCU DSE0700 MKII
Pocket-size genset control.
^ZVAF SX421
Earlier shunt-excited variant, still serviced on older sets.
^ZVBH R731
Next-generation digital AVR.
Send enquiry
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Code map
^Z V G G │ │ │ └── Model: UNITROL 5000 │ │ └───── Make: ABB │ └──────── Equipment: Automatic Voltage Regulator └─────────── System: Automation Spares