| Item | Specification |
|---|---|
| Article Number | 3BHE014557R0003 (UN1000B‑Z V3) |
| Manufacturer | ABB |
| Product family | UNITROL 1000 Excitation System |
| Product Type | Excitation Control Module |
| Analog I/O | 0‑10 V DC / 4‑20 mA |
| Regulation Accuracy | ±0.2 % |
| Response Time | ≤2 ms |
| Operating Temperature | -20 … +55 °C |
| Storage Temperature | -40 … +85 °C |
| Relative Humidity | 5‑95 % non‑condensing |
| Mounting | Cabinet rack mount |
| Degree of protection | IP20 |
| Net Weight | 1.5 kg |
| Warranty | 1 YEAR |
| Country of origin | Sweden |
3BHE014557R0003 UN1000B‑Z V3 belongs to ABB UNITROL 1000 generator excitation control family. It performs automatic voltage regulation, excitation current control and power‑system stabilizing functions for synchronous generators. It supports standard 0‑10 V and 4‑20 mA analog signal interfaces, achieves voltage regulation accuracy of ±0.2 % and fast response time ≤2 ms. It is rack‑mounted inside generator excitation cabinet. It cannot operate standalone; it must be matched with excitation power unit, voltage‑current transformers and related peripheral components. It is supplied as spare‑part for existing UNITROL 1000 excitation‑system maintenance. Installation, parameter setting and generator tuning must be completed by professional excitation‑system service engineers.
