Intermediate Transformer
1. High efficiency and energy saving: Low power loss design, in line with the latest energy efficiency standards, resulting in lower electricity costs during long-term operation.
2. On-load voltage regulation: Can adjust voltage while under load, without power outage, ensuring stable power supply.
3. Reliable and durable: Oil-immersed self-cooling (ONAN) structure, without additional auxiliary equipment, low failure rate, and long insulation life.
4. Easy maintenance: Sealed structure delays oil aging, and lifting design facilitates installation and maintenance.
5. Wide application scenarios: 80kV high-voltage side + multiple output levels, suitable for industrial, power grid, commercial and other scenarios with large fluctuations in load.
I. Basic Information
Product Name: Oil-immersed On-load Tap-changing Power Transformer
Model: S-1600/80
Manufacturer: Xinda Transformer Co., Ltd.
Executive Standards: GB1094.1, GB/T6451
Factory Serial Number: 26022015
II. Core Technical Parameters
| Parameter Item | Value | Description |
|---|---|---|
| Rated Capacity | 1600 kVA | Three-phase rated output capacity |
| Rated Frequency | 50 Hz | Adapts to domestic power frequency grid |
| Connection Group | YNd11 | High-voltage side star-connected, low-voltage side delta-connected, phase difference of 11 o'clock |
| Cooling Method | ONAN | Oil-immersed natural air cooling, no auxiliary equipment, high reliability |
| Impedance Voltage | To be confirmed | Not marked on the nameplate, designed per national standard for 80kV class |
| Insulation Level | LI/AC 5 | Meets lightning impulse and power frequency withstand voltage requirements for 80kV class |
| Body Lifting Weight | 4850 kg | Facilitates on-site hoisting and maintenance |
| Oil Weight | 5200 kg | Insulation and heat dissipation medium |
| Total Weight | 13200 kg | Complete machine transportation weight |
III. Voltage and Current Taps (High-voltage Side)
| Tap | Voltage (V) | Current (A) |
|---|---|---|
| 9 | 2000 | 461.9 |
| 8 | 7000 | 230.9 |
| 7 | 12000 | 132 |
| 6 | 16000 | 77 |
| 5 | 20000 | 57.7 |
| 4 | 24000 | 46.2 |
| 3 | 40000 | 23.1 |
| 2 | 80000 | 11.5 |
| 1 | 80000 | 11.5 |
IV. Product Advantages
On-load Tap-changing: Allows online voltage tap adjustment under load without power outage, ensuring stable power supply.
High Efficiency & Energy Saving: Low-loss silicon steel sheets and optimized structure, complying with the latest energy efficiency standards to reduce operating electricity costs.
Reliability & Durability: Oil-immersed natural cooling structure with long insulation life, suitable for long-term unattended outdoor operation.
Easy Maintenance: Sealed design delays oil aging, reasonable lifting weight facilitates installation and overhaul.
Wide Scenario Adaptability: 80kV high-voltage side with multi-tap output, adapting to industrial, power grid, commercial and other scenarios with large load fluctuations.
V. Typical Application Scenarios
Power supply for production lines and large equipment in industrial and mining enterprises
Urban and rural power grid renovation and substation capacity expansion
Data centers, large commercial complexes and other places with high requirements for voltage quality
