PRODUCT
S13 Series Oil-Immersed Transformers
Oil-immersed Transformer S13-M
Full Technical Parameters (Standard Version)
1. General Data
– Type: Oil-immersed, fully sealed, S13 energy-saving type – Phase: 3-phase
– Frequency: 50 Hz – Rated Voltage (HV): 10 kV, 11 kV
– Rated Voltage (LV): 0.4 kV (400/230 V) – Connection Group: Dyn11 (standard)
– Cooling Method: ONAN (Oil Natural Air Natural) – Insulation Class: A
– Service Conditions: Indoor / Outdoor
2. Rated Capacity Range
100, 200, 315, 400, 500, 630, 800, 1000, 1250, 1600, 2000 kVA
3. Voltage & Taps
– HV Tap Changer: Off-circuit tap changer (no-load) – Tap Range: ±2×2.5%
– Voltage Regulation Accuracy: ±0.5%
4. Losses (S13 GB Standard)
– 100 kVA: No-load Loss 130 W, Load Loss 1580 W, No-load Current 0.7% – 200 kVA: No-load Loss 220 W, Load Loss 2600 W, No-load Current 0.6%
– 315 kVA: No-load Loss 360 W, Load Loss 4300 W, No-load Current 0.55% – 400 kVA: No-load Loss 380 W, Load Loss 4800 W, No-load Current 0.5%
– 500 kVA: No-load Loss 510 W, Load Loss 6100 W, No-load Current 0.5% – 630 kVA: No-load Loss 570 W, Load Loss 6200 W, No-load Current 0.45%
– 800 kVA: No-load Loss 670 W, Load Loss 7500 W, No-load Current 0.45% – 1000 kVA: No-load Loss 800 W, Load Loss 10300 W, No-load Current 0.4%
– 1250 kVA: No-load Loss 980 W, Load Loss 12000 W, No-load Current 0.4% – 1600 kVA: No-load Loss 1200 W, Load Loss 14500 W, No-load Current 0.35%
– 2000 kVA: No-load Loss 1360 W, Load Loss 18300 W, No-load Current 0.35%
5. Impedance Voltage
– ≤ 630 kVA: 4.0% – ≥ 800 kVA: 4.5%
6. Insulation Level
– HV: LI75AC35 (for 10 kV class) – LV: ≤ 2 kV
7. Temperature Rise
– Winding: 65 K – Top Oil: 55 K
– Ambient Temperature: -25°C ~ +40°C
8. Oil Tank & Structure
– Tank Material: Steel plate, welded, corrosion-resistant – Oil Type: Transformer oil 25#
– Sealing Type: Fully sealed structure – Corrosion Protection: Sandblasting + epoxy primer + topcoat
9. Accessories (Standard)
– Oil level indicator – Pressure relief valve
– Thermometer pocket – Earthing bolt
– HV / LV bushing
– Lifting lugs – Nameplate
10. Standards Compliance
– IEC 60076
– GB/T 1094
– GB/T 6451-2023
– GB 20052-2024 (Energy efficiency Level 2)
11. Protection Class
– IP00 (open type)
– IP20 (with enclosure, optional)
Application scope:
Urban and rural distribution network construction and renovation, residential communities, commercial districts, mines, metallurgy, chemical industry, machinery manufacturing, highways, railways, airports, ports, and new energy supporting fields.
S13 Oil-immersed Transformer
🔹 Main Application Areas
– Urban & Rural Power Grid Reconstruction & Expansion
– Industrial & Mining Enterprises Power Supply
– Commercial Buildings, Residential Quarters & Infrastructure
– Petroleum, Chemical, Metallurgy & Textile Industries
– Schools, Hospitals, Malls & Data Centers
– Wind & Solar PV Power Generation Step-up/step-down Systems
– Construction Sites, Temporary & Emergency Power Supply
🔹 Suitable Environment
– Indoor / Outdoor Installation
– Altitude: ≤1000m (Customizable for Higher Altitude)
– Ambient Temperature: -25℃ ~ +40℃
– Relative Humidity: ≤95%
– Vibration-free & Non-corrosive Gas Environments
🔹 Voltage & Capacity Application
– Rated Voltage: 6kV, 10kV, 11kV, 35kV Distribution System
– Rated Capacity: 30–2500 kVA
– Widely Used in 10kV/0.4kV Distribution Network
🔹 Application Advantages
✅ High Energy Efficiency, Low No-load Loss
✅ Fully Sealed, Maintenance-free, Long Service Life
✅ Low Noise, Stable Operation, High Reliability
✅ Strong Short-circuit Withstand Capacity, Safe & Durable
