Système de distribution industrielle de 500 kVA
500 kVA · S13-M-500/10
Un système de distribution de transformateur immergé dans l\
Nomenclature
| Equipment | Model | Specification | Qty | Price |
|---|---|---|---|---|
| HV incoming panel | KYN28A-12-630-315 | 630 A / 31.5 kA · vacuum | 1 | Devis en temps réel |
| Main transformer | S13-M-500/10 | 500 kVA · Oil-Immersed · Copper · S13 | 1 | Devis en temps réel |
| LV incoming panel | GGD-1000 | 1000 A busbar · In 722 A | 1 | Devis en temps réel |
| LV feeder panel | GGD-1000 | distributes 6 circuits | 1 | Devis en temps réel |
| PFC capacitor bank | 200 kVAR | automatic · GCK LV cabinet | 1 | Devis en temps réel |
| Cable branch box (LV) | DFW-0.4 | 1-in / 4-out · 0.4 kV · 630 A | 1 | Devis en temps réel |
| Series reactor (detuned) | CKSG-12.0/0.4 | 12.0 kVAR · 6% · 0.4 kV | 1 | Devis en temps réel |
| Main feeder cable (TX→LV) | YJV 0.6/1kV 240 mm² ×2 | 2× 240 mm² Cu · ΔU 0.88% @ 60 m · $123.0/m | 2 | Devis en temps réel |
| Feeder cable — LV feeder circuit 1 (×6) | YJV 50 mm² | 50 mm² Cu · 150 A · ΔU 1.8% · $25.2/m | 6 | Devis en temps réel |
| Branch trunk cable (LV → branch box 1) | YJV 150 mm² | 150 mm² Cu · 301 A · ΔU 1.2% · $86.0/m | 1 | Devis en temps réel |
| Main busbar (Cu) | Cu 63×6.3 | 63×6.3 · 900 A rating · ref $47/m | included | Devis en temps réel |
| Grounding electrode | Φ20mm × 2.5m rod | R₁ 39.6 Ω → 13 rod(s) ≤ 4 Ω | 13 | Devis en temps réel |
Les prix exacts sont calculés en temps réel par le calculateur de sélection et de devis instantané — entrez vos paramètres réels pour un devis FOB précis.
Étapes de conception
1. Loads: P=500 kW, PF 0.80, 6 circuits
2. Demand: 500 × 0.8 = 400 kW
3. PFC: Qc = 400 × (0.750 − 0.329) = 169 kVAR → 200 kVAR bank
4. Transformer: S = 400 ÷ 0.95 = 421.1 kVA → 500 kVA standard
4b. Loading: 421 ÷ 500 = 84% (good range)
4c. Voltage regulation: 84% × 4% × sinφ ≈ 1.1% at full load
5. HV: In 28.9 A, Isc 28.9 kA → KYN28A-12-630-315
6. LV: In 722 A, Isc 17.6 kA (Xfmr Z 4% + system 0.1%) → GGD-1000, 1 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: 2× 240 mm² · ΔU 0.88% — OK
Notes de conception
Pricing basis: FOB Qingdao (EXW) equipment price. Freight, duty and installation are not included — add for landed economics.
Transformer loading: 84% at design demand — good range.
Short-circuit check: HV 28.9 kA vs 31.5 kA (1.1× margin) · LV 17.6 kA vs 25 kA (1.4× margin).
Voltage regulation: ≈ 1.1% at full load (typical limit 5%).
Power factor correction: 200 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 2× 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.
Diagramme unifilaire
Concevoir et devis ce système en temps réel
Entrez vos paramètres de charge réels pour obtenir la liste exacte des équipements et le prix FOB.