800 kW Industrial Park Power System Cost Breakdown (Q3 2026 China Supplier Pricing)
800 kW Industrial Park Power System Cost Breakdown (Q3 2026 China Supplier Pricing) — itemized bill of materials and FOB pricing for a typical configuration.
Estimated total (FOB): $80,036 · 630 kVA transformer
Bill of materials
| Item | Specification | Qty | Price (USD) |
|---|---|---|---|
| HV incoming panel (KYN28A-12-630-315) | 630 A / 31.5 kA · vacuum | 1 | $2,448 |
| Main transformer (S13-M-630/10) | 630 kVA · Oil-Immersed · Copper · S13 | 1 | $9,302 |
| LV incoming panel (GGD-1000) | 1000 A busbar · In 909 A | 1 | $3,479 |
| LV feeder panel (GGD-1000) | distributes 4 circuits | 1 | $3,479 |
| Main feeder cable (TX→LV) (YJV 0.6/1kV 300 mm² ×2) | 2× 300 mm² Cu · ΔU 1.18% @ 80 m · $154.0/m | 2 | $24,640 |
| Feeder cable — Plant feeder 1 (×4) (YJV 185 mm²) | 185 mm² Cu · 352 A · ΔU 1.5% · $103.0/m | 4 | $32,960 |
| Main busbar (Cu) (Cu 80×8) | 80×8 · 1400 A rating · ref $75.6/m | included | POA |
| Grounding electrode (Φ20mm × 2.5m rod) | R₁ 39.6 Ω → 13 rod(s) ≤ 4 Ω | 13 | $125 |
| Detuned PFC capacitor bank (177 kvar) | automatic · 7% detuned · 0.4 kV | 1 | $2,800 |
| Series detuning reactor (7%) (12.4 kvar) | 189 Hz tuning · below 5th harmonic | 1 | $804 |
Single-line diagram
How it was calculated
- Connected equipment load = 800 kW
- Demand = 800 × 0.6 = 480 kW
- Motor share = 60% → 288 kW (drives natural PF 0.82)
- Reactive compensation: Qc = 480 × (tanφ₁ − tanφ₂) = 177 kvar
- Harmonic-source share = 25% → 120 kW → Ih = 55 A (30% THDi)
- Loads: P=800 kW, PF 0.82, 4 circuits
- Demand: 800 × 0.6 = 480 kW
- Transformer: S = 480 ÷ 0.95 = 505.3 kVA → 630 kVA standard
- Loading: 505 ÷ 630 = 80% (good range)
- Voltage regulation: 80% × 4% × sinφ ≈ 1.0% at full load
- HV: In 36.4 A, Isc 28.9 kA → KYN28A-12-630-315
- LV: In 909 A, Isc 22.0 kA (Xfmr Z 4% + system 0.1%) → GGD-1000, 1 feeder panel(s)
What drives the cost
- Equipment — the transformer/switchgear/inverter is the largest single line item.
- Storage (where applicable) — batteries are the biggest swing factor.
- Copper & freight — copper-linked cabling and freight shift landed cost ±5–10%.
Frequently asked questions
What demand factor applies to an industrial park?
An industrial park with many factories never runs every machine simultaneously; a demand factor of 0.55-0.7 is typical. A 2000 kW connected load at 0.6 kd and 0.9 pf gives ~1330 kVA demand, so a 1600 kVA transformer or two 800 kVA units suit. The calculator uses demand factor and motor share to size the MV/LV plant.
How much harmonic filtering does a factory-heavy park need?
When 60% of load is motors on VFDs and 25% is non-linear (rectifiers, UPS), THDi can reach 15-25%. IEEE 519 limits THD to 5-8% at the point of common coupling, so a detuned capacitor bank (7% reactor) or APF is required. The calculator sizes compensation and detuning from the harmonic share.
What is the standard MV/LV architecture for an industrial park?
Typical architecture: 10 kV (or 35 kV) utility feed -> ring or radial MV switchgear -> one transformer per factory or block -> 0.4 kV switchboards -> motor control centers. A 10 kV ring with RMUs along the ring offers N-1 supply. The calculator sizes the transformers, switchgear and compensation for the aggregated park load.
How do I allocate transformer capacity per factory?
Give each factory its own transformer sized to its demand plus 20-25% headroom, or share one large transformer for small tenants. Separate transformers isolate faults and simplify metering, but shared units cost less. The calculator aggregates the park demand and shows the single-transformer and split-transformer options.
What power factor should an industrial park maintain?
Utilities usually require 0.9-0.95 power factor and levy penalties below ~0.9. Industrial parks with motor-heavy load typically start at 0.75-0.85 and add capacitor banks to reach 0.95. The calculator computes the required kvar compensation to correct from measured pf to target and sizes the LV capacitor bank.
What redundancy does a park MV network usually provide?
A ring-main MV network with normally-open tie provides N-1 redundancy: any cable or RMU fault is isolated and load restored from the other direction. Radial feeders are cheaper but lose supply on a fault. The calculator's architecture notes cover ring vs radial options and their reliability trade-off.
Size your own configuration
Run the calculator for your exact load and get a full BOM + FOB price.
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