1250 kVA Ticari Bina Dağıtım Sistemi
1600 kVA · SCB13-1600/10
Ticari binalar ve veri merkezleri için tipik bir 1250 kVA kuru tip trafo dağıtım sistemi.
Malzeme Listesi
| Equipment | Model | Specification | Qty | Price |
|---|---|---|---|---|
| HV incoming panel | KYN28A-12-630-315 | 630 A / 31.5 kA · vacuum | 1 | Gerçek zamanlı teklif |
| Main transformer | SCB13-1600/10 | 1600 kVA · Dry-Type · Copper · SCB13 | 1 | Gerçek zamanlı teklif |
| LV incoming panel | GGD-2500 | 2500 A busbar · In 2309 A | 1 | Gerçek zamanlı teklif |
| LV feeder panel (×2) | GGD-2500 | distributes 8 circuits | 2 | Gerçek zamanlı teklif |
| PFC capacitor bank | 400 kVAR | automatic · GCK LV cabinet | 1 | Gerçek zamanlı teklif |
| Cable branch box (LV) | DFW-0.4 | 1-in / 4-out · 0.4 kV · 630 A | 1 | Gerçek zamanlı teklif |
| Series reactor (detuned) | CKSG-24.0/0.4 | 24.0 kVAR · 6% · 0.4 kV | 1 | Gerçek zamanlı teklif |
| Main feeder cable (TX→LV) | YJV 0.6/1kV 300 mm² ×5 | 5× 300 mm² Cu · ΔU 0.90% @ 60 m · $154.0/m | 5 | Gerçek zamanlı teklif |
| Feeder cable — LV feeder circuit 1 (×8) | YJV 240 mm² | 240 mm² Cu · 361 A · ΔU 0.9% · $123.0/m | 8 | Gerçek zamanlı teklif |
| Branch trunk cable (LV → branch box 1) | YJV 240 mm² ×4 | 4× 240 mm² Cu · 1443 A · ΔU 0.9% · $123.0/m | 4 | Gerçek zamanlı teklif |
| Main busbar (Cu) | Cu 125×10 | 125×10 · 2500 A rating · ref $147.8/m | included | Gerçek zamanlı teklif |
| Grounding electrode | Φ20mm × 2.5m rod | R₁ 39.6 Ω → 13 rod(s) ≤ 4 Ω | 13 | Gerçek zamanlı teklif |
Kesin fiyatlar, anlık seçim ve teklif hesaplayıcıyla gerçek zamanlı olarak hesaplanır; kesin bir FOB teklifi için gerçek parametrelerinizi girin.
Tasarım adımları
1. Loads: P=1,700 kW, PF 0.85, 8 circuits
2. Demand: 1,700 × 0.7 = 1,190 kW
3. PFC: Qc = 1,190 × (0.620 − 0.329) = 346 kVAR → 400 kVAR bank
4. Transformer: S = 1,190 ÷ 0.95 = 1252.6 kVA → 1,600 kVA standard
4b. Loading: 1,253 ÷ 1,600 = 78% (good range)
4c. Voltage regulation: 78% × 6% × sinφ ≈ 1.5% at full load
5. HV: In 92.4 A, Isc 28.9 kA → KYN28A-12-630-315
6. LV: In 2309 A, Isc 36.5 kA (Xfmr Z 6% + system 0.3%) → GGD-2500, 2 feeder panel(s)
6b. Cable branch boxes: 1 × DFW-0.4 (1-in/4-out) for feeder grouping
7. Grounding: R₁ 39.6 Ω → 13 rod(s)
8. Main feeder: 5× 300 mm² · ΔU 0.90% — OK
Tasarım notları
Pricing basis: FOB Qingdao (EXW) equipment price. Freight, duty and installation are not included — add for landed economics.
Transformer loading: 78% at design demand — good range.
Short-circuit check: HV 28.9 kA vs 31.5 kA (1.1× margin) · LV 36.5 kA vs 50 kA (1.4× margin).
Voltage regulation: ≈ 1.5% at full load (typical limit 5%).
Power factor correction: 400 kVAR automatic bank corrects PF to 0.95.
Copper price linkage: Copper-wound transformer price tracks LME copper (current $14,219/t · 2026-09-12 · LME Copper (Sina hf_CAD)).
Parallel conductors: Single-cable ampacity exceeded — parallel conductors specified: main feeder 5× 300 mm², branch trunk 1 4× 240 mm² (per IEC 60364-5-52 / GB 50054).
Cable & grounding pricing: Cable conductors and grounding are priced from the confirmed cables-trays-grounding price reference (per-metre copper YJV; aluminium remains POA). The main copper busbar is POA — its length is project-specific.
Busway (high-current feeders): For LV feeders above ~2500 A, a busway (母线槽) trunking system is recommended instead of parallel cables.
Tek Hat Şeması
Bu Sistemi Gerçek Zamanlı Olarak Tasarlayın ve Teklif Alın
Tam ekipman listesini ve FOB fiyatını almak için gerçek yük parametrelerinizi girin.