VZIMAN Z-tipa na Gwadiyan Trafansufa: Ƙare Wata a Tsarin Mai Ba A Gwada Bisa
1. Background na ɗan Farko
A cikin tashar karamin jirgin 6kV~36kV, abubuwa da ake gudana daga wurare na transformer da suka shiga ba ta da tsakiyar tsakani ba. VZIMAN® Grounding Transformer yana hana wannan matsaloli da zabe na tsakani mai sauƙi a kan wurare na Z. Wannan ƙauyarsu yana magance matsalar da suka faruwa wajen fadada musamman, masu:
- Matsalolin overvoltage(>2.5x line voltage a cikin tashar da ba ta da tsakiya)
- Tsari mai zurfiwanda ke sauye ƙananan abubuwa
- Kashe ƙananan abubuwasaboda baya da ƙananan tsarin tsari
Grounding Transformer yana iya:
- Bincike tsakiya da <10Ω zero-sequence impedance
- Koyarwa mai ƙananan overvoltage ta hanyar tsari mai sauƙi
- Zaɓe tsakiyar tsakani (30~70V) don tashar da suka shiga
2. Mafi Masu Ƙungiyar
2.1 Yakin Fanni
- Z-Winding Physics (ZNyn Type):
Duka tsari ya kawo zuwa biyu da zaɓu da wurare (Zig-Zag configuration), da ta koyar da flux mai sauƙi → No-load losses reduced by 40% transformers na farko.
Zero-sequence impedance <10Ω(vs. >600Ω a cikin transformers na star-delta), wanda yake iya amfani da arc suppression coil >90%.
- Flexible Grounding Transformer Configurations:
Dry-type (AN/AF cooling) ko oil-immersed (ONAN/ONAF)
Short-time withstand: 10s@3000A(customizable to 60s)
2.2 Integration na Duk Daɗi
- Dual-Purpose Design:
Yana ƙara transformers na station service da ƙarfin tsakiya, da kuma ta haifar da tsari, wanda yake haifar da ƙarfin abubuwa da 25%.
- Adaptive Neutral Control:
Yana ƙara 30–70V measurable voltagea cikin tashar da suka shiga (low unbalanced voltage).
Balanced 3-phase windings maintain accuracy under **>15% voltage unbalance**.
2.3 Engineering na Ƙarfafa
- Extreme Environment Resilience:
Operational range: -40℃ ~ +40℃| Altitude: ≤1000m (insulation customizable for 4000m)
100% humidity tolerance with IP54+ protection
3. Muhimmanci na Amfani da Grounding Transformer
|
Scenario |
Grounding Transformer Solution |
|
6kV~10kV Distribution |
Provides low-impedance neutral (<10Ω) for delta systems → Direct arc suppression coil connection |
|
35kV+ Systems |
Cooperates with Y-winding transformers to optimize neutral grounding in hybrid grids |
|
Industrial Sites |
Custom windings for high unbalance/full-cable networks → Neutral voltage stabilization (30~70V) |
|
Smart Substations |
Integrated CT/VT + isolation switches → Real-time ground fault analytics |
4. Specifications na Grounding Transformer
|
Parameter |
Value |
|
Type |
Zig-Zag (ZNyn) / Dry or oil-immersed |
|
Rated Voltage |
≤36kV |
|
Zero-Seq Impedance |
<10Ω (vs. industry avg. >600Ω) |
|
Cooling Methods |
ONAN (oil)/ONAF (oil+fan)/AN (dry)/AF (dry+fan) |
Note: All Grounding Transformers include IEC 60076-1/6 certification, de-energized tap changers, and HV/LV bushings.
5. Commitment na Bincike
- Engineering na ƙasa: Masu ƙungiyar masu siffo suke taimaka wa ƙarfin ƙarfi, commissioning, da kuma coordination na arc suppression coil.
- Rapid Response:
Tel: +86(577) 27869969 (Barry) | Email: support@vziman.com
- Lifecycle Management: Bincike na IEC-compliant + fault diagnostics for Grounding Transformer
