Sistem Distribusi Bangunan Komersial 1250 kVA
1600 kVA · SCB13-1600/10
Sistem distribusi transformator tipe kering 1250 kVA yang khas untuk bangunan komersial dan pusat data.
Daftar Bahan
| Equipment | Model | Specification | Qty | Price |
|---|---|---|---|---|
| HV incoming panel | KYN28A-12-630-315 | 630 A / 31.5 kA · vacuum | 1 | Kutipan waktu nyata |
| Main transformer | SCB13-1600/10 | 1600 kVA · Dry-Type · Copper · SCB13 | 1 | Kutipan waktu nyata |
| LV incoming panel | GGD-2500 | 2500 A busbar · In 2309 A | 1 | Kutipan waktu nyata |
| LV feeder panel (×2) | GGD-2500 | distributes 8 circuits | 2 | Kutipan waktu nyata |
| PFC capacitor bank | 400 kVAR | automatic · GCK LV cabinet | 1 | Kutipan waktu nyata |
| Cable branch box (LV) | DFW-0.4 | 1-in / 4-out · 0.4 kV · 630 A | 1 | Kutipan waktu nyata |
| Series reactor (detuned) | CKSG-24.0/0.4 | 24.0 kVAR · 6% · 0.4 kV | 1 | Kutipan waktu nyata |
| 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 | Kutipan waktu nyata |
| Feeder cable — LV feeder circuit 1 (×8) | YJV 240 mm² | 240 mm² Cu · 361 A · ΔU 0.9% · $123.0/m | 8 | Kutipan waktu nyata |
| Branch trunk cable (LV → branch box 1) | YJV 240 mm² ×4 | 4× 240 mm² Cu · 1443 A · ΔU 0.9% · $123.0/m | 4 | Kutipan waktu nyata |
| Main busbar (Cu) | Cu 125×10 | 125×10 · 2500 A rating · ref $147.8/m | included | Kutipan waktu nyata |
| Grounding electrode | Φ20mm × 2.5m rod | R₁ 39.6 Ω → 13 rod(s) ≤ 4 Ω | 13 | Kutipan waktu nyata |
Harga pasti dihitung secara real-time melalui kalkulator pilihan dan penawaran instan — masukkan parameter aktual Anda untuk mendapatkan penawaran FOB yang tepat.
Langkah desain
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
Catatan desain
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.
Diagram Garis Tunggal
Rancang dan Kuotasi Sistem Ini Secara Real Time
Masukkan parameter beban aktual Anda untuk mendapatkan daftar peralatan yang tepat dan harga FOB.