Product Description
The P3U30-5AAA2BBAA is a full‑configuration order‑code for Schneider VAH series indoor generator vacuum circuit‑breaker (GCB), part of PacT product family. Equipped with spring‑charged operating mechanism and vacuum interrupters. Designed according to generator circuit‑breaker standard IEEE C37.013, capable of interrupting high DC‑component asymmetric short‑circuit currents from generators. Available in fixed or withdrawable trolley construction. Mainly applied for generator main circuit protection in power plants and heavy‑industry high‑current medium‑voltage distribution systems.
Technical Data (for VAJH13YF0001BBA, VAH‑13.8 kV frame)
| Item | Specification |
|---|---|
| Ordering Part Number | P3U30-5AAA2BBAA (full configured order code) |
| Rated maximum operating voltage | 13.8 kV |
| Rated frequency | 50 / 60 Hz |
| Rated continuous current | 5000 A; up to 8000 A with forced air cooling |
| Rated short‑circuit breaking current | 63 kA (generator duty, high DC‑component interruption) |
| Rated short‑time withstand current (3s) | 63 kA |
| Rated peak withstand current | 173 kA |
| Operating mechanism | Spring‑motor charged mechanism, universal AC/DC control coils |
| Mechanical endurance | 10 000 operating cycles |
| Electrical endurance | 10 000 rated breaking cycles |
| Interrupting medium | Vacuum interrupter |
| Mounting version | Withdrawable trolley type |
| Standards | IEEE C37.013 (Generator Circuit‑Breaker), IEC 62271‑100 |
| Ambient operating temperature | Indoor: ‑5 ℃ ~ +40 ℃ |
| Cooling | Natural air cooling; optional forced‑air cooling unit for higher current rating |
Product Performance
- Optimized interruption performance for generator fault conditions with high DC offset current, fully compliant with IEEE C37.013 generator circuit‑breaker requirements.
- Spring‑stored‑energy mechanism provides stable close/trip operations; supports remote electrical control and local manual operation with automatic spring charging motor.
- Modular open‑design poles for excellent thermal dissipation; forced‑air cooling enables rated current up to 8000 A for heavy‑duty continuous operation.
- Comprehensive auxiliary contacts, position signalling, mechanical position indicator and operation counter; easy integration with protection relays and SCADA systems.
- Withdrawable trolley design provides test/service positions for safe isolation and convenient maintenance; fixed version is also available.
- Integrated mechanical interlocks prevent incorrect switching operations, complying with medium‑voltage switchgear safety requirements.
Application Fields
- Generator main circuit breaker for thermal, hydro, biomass and gas‑fired power plants (generator capacity up to approx. 200 MVA)
- Protection for on‑site captive power plants & distributed energy stations
- Heavy‑industry high‑current MV main‑incoming and bus‑feeder protection
- Retrofit & spare‑part replacement projects for existing power‑station installations
- Assembled inside custom medium‑voltage switchgear cubicles
Main VAH Series Base Frames (full order codes vary by options)
Note: VAJH13YF0001BBA is a complete long ordering code. Base frames are grouped by rated voltage; final part‑number changes with coil voltage, auxiliary contacts, fixed/trolley and cooling selections.
- VAH‑12 kV: 12 kV, 5000 A, 63 kA
- VAH‑13.8 kV: 13.8 kV, 5000 A (this model base frame), 63 kA
- VAH‑15 kV: 15 kV, 5000 A, 50 kA
- VAH‑17.5 kV: 17.5 kV, 5000 A, 63 kA
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