1. Products Introduction
The indoor transformer adopts a high-quality epoxy resin cast structure, which has the characteristics of safe operation, fire prevention and explosion-proof. No insulating oil is required, there is no risk of leakage, quiet operation and easy maintenance.It is widely used in power distribution, commercial buildings, factories and other indoor power supply occasions, with stable performance, strong overload capacity and long service life.
2. Advantages
High fire safety
The indoor transformer adopts epoxy resin vacuum casting process, the winding is completely sealed in a flame-retardant insulating layer, and the fire rating reaches F (temperature resistance 155℃). Even if an extreme short circuit occurs, the shell temperature is lower than 100℃, which effectively avoids the risk of open flames at the source of the fire.
Ultra-quiet operation
The design avoids the resonance frequency by adjusting the scale factor of the iron core layer by layer. The material adopts high-quality silicon steel sheet to reduce the hysteresis loss rate.The processing process adopts advanced iron core production line, and the processing burrs are ≤0.03mm.The assembly link adopts an advanced five-step stacking process to effectively reduce the air gap at the joints of the iron core.
Compact space adaptation
The dry-type transformer is 40% smaller and 30% lighter than the oil-immersed transformer of the same capacity, and can be directly embedded in the power distribution cabinet or wall-mounted installation.It is compact in size, easy to transport, and easy to access the elevator and indoor environment.
Indoor transformers are divided into primary energy efficiency, secondary energy efficiency and tertiary energy efficiency.Kechang Electric can produce a full range of products according to customized solutions from customers and is Schneider Electric's business partner in China.
3. Why Choose Us
- The electrical distribution transformers production plant has passed ISO certification, the production process is standardized, and the product quality is stable.
- Focus on oil-immersed transformer design, mature and reliable oil circuit, cooling and insulation systems.
- Support OEM/ODM customization, capacity, voltage, structure, and protection device can be adjusted.
- Quality inspection of the whole process of production, including electrical testing, oil quality analysis and many other tests.
- Provide export packaging and global logistics solutions, timely and efficient after-sales response.
4. Technical Specification
| Model Number | Rated Volume Quantity (KVA) |
Voltage Combination(KV) | Connection Group Label | No-load Loss(W) | Load Loss(W) | No-load Electricity(%) | Short Circuit Resistance(%) | ||
| High Voltage |
High Voltage Tap Range | Low Voltage | |||||||
| SC18-M-30 | 30 | 6 6.3 10 10.5 |
+3 -1 ±5% ±2×2.5% or ×2.5% |
0.4 | Dyn11 or Yyn0 |
105 | 640 | 2.0 | 4 |
| SC18-M-50 | 50 | 155 | 900 | 2.0 | 4 | ||||
| SC18-M-80 | 80 | 210 | 1240 | 1.5 | 4 | ||||
| SC18-M-100 | 100 | 230 | 1415 | 1.5 | 4 | ||||
| SC18-M-125 | 125 | 270 | 1665 | 1.3 | 4 | ||||
| SC18-M-160 | 160 | 310 | 1915 | 1.3 | 4 | ||||
| SC18-M-200 | 200 | 360 | 2275 | 1.1 | 4 | ||||
| SC18-M-250 | 250 | 415 | 2485 | 1.1 | 4 | ||||
| SC18-M-315 | 315 | 510 | 3125 | 1.0 | 4 | ||||
| SC18-M-400 | 400 | 570 | 3590 | 1.0 | 4 | ||||
| SC18-M-500 | 500 | 670 | 4390 | 1.0 | 4 | ||||
| SC18-M-630 | 630 | 775 | 5290 | 1.0 | 4 | ||||
| SC18-M-630 | 630 | 750 | 5365 | 0.85 | 6 | ||||
| SC18-M-800 | 800 | 875 | 6265 | 0.85 | 6 | ||||
| SC18-M-1000 | 1000 | 1020 | 7315 | 0.85 | 6 | ||||
| SC18-M-1250 | 1250 | 1205 | 8720 | 0.85 | 6 | ||||
| SC18-M-1600 | 1600 | 1415 | 10555 | 0.85 | 6 | ||||
| SC18-M-2000 | 2000 | 1760 | 13005 | 0.7 | 6 | ||||
| SC18-M-2500 | 2500 | 2080 | 15445 | 0.7 | 6 | ||||
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