Attribute | Value |
---|---|
Frequency | 50Hz, 60Hz |
Phase | Single Phase |
Application | Distribution system |
Coil Structure | Shell-Type Coil, layer coil, fully sealed construction, Disc Coil, round coil |
Output Voltage | 110V, 220V, 380V, 400V, 440V, 480V |
Input Voltage | 10kV, 35kV, 69kV, 110kV, 115kV, 132kV, 220kV, 400kV |
Type | Oil-Immersed Transformer |
Rated Capacity | 15KVA-500KVA |
Low Voltage | 110 LV - 690 LV |
Rated Voltage | 37.5kVA-333K |
Vector Group | Dyn1/Yyn0 |
Secondary Voltage | 0.4 kV |
Efficiency | ≥ 98% |
Protection Class | IP23 |
Overload Capacity | 1.2 times rated power for 1 hour |
Mounting Type | Pole Mounted |
Operating Temperature | -25°C to 40°C |
Cooling Method | ONAN |
Winding Material | Copper |
Insulation Class | Class A |
Primary Voltage | 11 kV |
Rated Power | 5 kVA |
Short Circuit Impedance | 4% |
Rated capacity (KVA) | Tapping range | LV | No-load loss | Load loss | Dimension (mm) | Efficiency |
---|---|---|---|---|---|---|
15 | ±2* 2.5% | 110 120 208 240 277 347 415 416 480 600 690 | 60 80 100 120 130 150 | 330 370 450 620 850 1150 | 520 560 610 635 754 770 795 | 98.8 |
25 | 98.95 | |||||
37.5 | 99.05 | |||||
50 | 99.11 | |||||
75 | 99.19 | |||||
100 | 99.25 | |||||
167 | 99.33 | |||||
99250 | 99.39 | |||||
333 | 99.43 | |||||
500 | 99.49 |
Safety Distance:
≥3m from Buildings
≥4.5m above Ground (Road)
Grounding Requirements:
Independent Grounding Electrode Resistance <10Ω
Grounding Wire Cross-Sectional Area ≥25mm²
Phenomenon | Possible Cause | Emergency Measures |
---|---|---|
Abnormal humming | Loose core | Tighten bolts during power outage |
Oil temperature > 85℃ | Overload/poor heat dissipation | Forced air cooling + load reduction |
Bushing flashover | Dirt accumulation | Live cleaning (certification required) |
Founded in 2011 | 100,000㎡ production base | One-stop service for design, manufacturing and installation