Product advantages
Leading technology
- Low pressure copper foil winding and high pressure copper tape winding technology, improve lightning resistance
- Small magnetic leakage, high mechanical strength, strong short circuit resistance
- Strong heat dissipation, low temperature rise, can run 120% of the rated load
The shell
- Mitsubishi laser cutting machine and CNC punching, reducing, folding and other equipment to ensure the accuracy of processing
- ABB robot automatic welding, laser detection, to avoid leakage, qualified rate of 99.99998%
- Electrostatic spray treatment, 50 years of paint (coating corrosion resistance within 100h, hardness ≥0.4)
- Fully sealed structure, maintenance-free and maintenance-free, normal operation life of more than 50 years
The iron core
- Iron core assembled with high quality amorphous alloy silicon steel sheet
- Minimize loss level, no-load current and noise by controlling the cutting and stacking process of silicon steel sheet
- The iron core is specially reinforced to ensure the transformer structure is firm during normal operation and transportation
Winding
- Low voltage winding is made of high quality copper foil, excellent insulation resistance
- The high voltage windings are usually made of insulated copper wire, using the patented technology of Hengfengyou Electric
- Very good resistance to radial stress caused by short circuit
High quality material
- Sinowisco produces amorphous alloy silicon steel sheet
- High quality anaerobic copper from China
- CNPC (Kunlun Petroleum) High quality transformer oil (25# 40#)
Other instructions
- The low-voltage outgoing terminal is tinned copper bar
- The high-voltage outlet terminals are ring tinned bolts
- Default no-load voltage regulation (on-load voltage regulation can be customized)
Product parameters
| 额定容量Capacity |
额定电压及分接范围Rated voltage&Off-load tapping |
联结组标号
Vector
GroupSymbol |
空载损耗
NO-load
loss（W） |
负载损耗
Load loss（W） |
空载电流
NO-load current（%） |
短路阻抗Short
circuit impedance(%) |
高压
H.V(kv) |
高压分接范围
High pressure
Tap range（%） |
低压
L.V(kv) |
| 30kva |
20 |
±5%
±2x2.5% |
0.4
0.69 |
Dyn11
Yyn0 |
100 |
630/600 |
1.5 |
4 |
| 50kva |
130 |
910/870 |
1.3 |
4 |
| 63kva |
150 |
1090/1040 |
1.2 |
4 |
| 80kva |
180 |
1310/1250 |
1.2 |
4 |
| 100kva |
200 |
1580/1500 |
1.1 |
4 |
| 125kva |
240 |
1890/1800 |
1.1 |
4 |
| 160kva |
280 |
2310/2200 |
1 |
4 |
| 200kva |
340 |
2730/2600 |
1 |
4 |
| 250kva |
400 |
3200/3050 |
0.9 |
4 |
| 315kva |
480 |
3830/3650 |
0.9 |
4 |
| 400kva |
570 |
4520/4300 |
0.8 |
4 |
| 500kva |
680 |
5410/5150 |
0.8 |
4 |
| 630kva |
810 |
6200 |
0.6 |
4.5 |
| 800kva |
980 |
7500 |
0.6 |
4.5 |
| 1000kva |
1150 |
10300 |
0.6 |
4.5 |
| 1250kva |
1360 |
12000 |
0.5 |
4.5 |
| 1600kva |
1640 |
14500 |
0.5 |
4.5 |
| 2000kva |
1940 |
18300 |
0.4 |
5 |
| 2500kva |
2290 |
21200 |
0.4 |
5 |
Ordering instructions
- Main parameters of transformer (voltage, capacity, loss and other main parameters)
- Transformer operating environment (altitude, temperature, humidity, location, etc.)
- Other customization requirements (coupling groups, colors, oil pillows, etc.)
- The minimum order quantity is 1 sets, worldwide delivery within 7 days
- Normal delivery period of 30 days, worldwide fast delivery
