Description
The ABB DATX133 (order / part number 3ASC25H219B) is a specialized Thyristor Gate Driver / Pulse Transformer Board manufactured by ABB. It is utilized within ABB medium/high-power converter platforms, UNITROL excitation systems, Advant OCS / MasterPiece architectures, and large industrial static frequency converters.
The DATX133 functions as a high-integrity interface between low-voltage control electronics and high-power thyristor (SCR) bridges, transforming control firing pulses into high-energy gate drive signals while maintaining galvanic isolation.
Technical Specifications
| Parameter | Specification |
| Manufacturer | ABB (Asea Brown Boveri) |
| Model / Board Name | DATX133 (DATX 133) |
| Part Number | 3ASC25H219B (also referenced as 3ASC25H204 / 3ASC25H219) |
| Board Type | Thyristor Firing / Gate Driver Circuit Board |
| Primary Function | High-speed pulse generation and galvanic isolation for power thyristors |
| Channels / Drivers | Multi-channel thyristor trigger outputs (typically 6-pulse or 12-pulse configurations) |
| Isolation Rating | High-voltage galvanic isolation via onboard pulse transformers |
| Input Signals | Low-voltage logic-level firing pulses from central processor |
| Operating Temperature | 0°C to +60°C (32°F to 140°F) |
| Form Factor | Subrack Plug-in Printed Circuit Board Assembly (PCBA) |
Core Features & Operating Capabilities
- High-Energy Firing Pulses: Delivers steep, high-current gate trigger pulses to ensure rapid, symmetrical turn-on of large power thyristors, minimizing switching losses and thermal stress.
- Galvanic & Dielectric Isolation: Employs precision pulse transformers to isolate delicate control logic cards from high DC-bus and AC-line voltages present across the power converter bridges.
- Noise Immunity & dv/dt Suppression: Includes onboard RC filtering and suppression networks to shield trigger channels against electromagnetic interference (EMI) and high dv/dt false-firing transients.
- Multi-Channel Drive Capability: Configured to trigger full 6-pulse or 12-pulse thyristor bridges for smooth phase-angle control in rectifiers and exciters.
- Subrack Plug-In Design: Integrates into standard ABB subrack backplanes with gold-plated multi-pin headers for reliable signal routing.
Related ABB Power Electronics Hardware
- DAPC100 / DAPC100A — ABB Gate Drive & Control Interface Boards.
- DATX110 / DATX120 — Related ABB Firing & Pulse Transformer Board Variants.
- UNITROL 5000 / UNITROL 6000 — High-Performance Static Excitation Systems.
- YPC111A / YPC103A — Power Electronic Controller Cards.
