Three-phase isolation transformer
The three-phase isolation transformer is three independent windings. Through different connection methods (star and triangle), it can input three-phase AC power supply, and its output is also the same. It is widely used in AC 50 ~ 60Hz circuits, such as imported important equipment, precision machine tools, servo motors, printing presses, mechanical and electronic equipment, CNC machine tools, spark machines, medical equipment, rectifier devices, lighting, etc, Various three-phase power supply occasions with voltage below 1000V. The common ones are input voltage 660V, 440V, 400V, 380V, output voltage 380V, 220V, 200V, etc., various input and output voltage of transformer, connection group, number and position of regulating tap (generally 5%), winding capacity distribution, secondary single-phase winding configuration, rectifier circuit application, whether it is required to have shell, etc, Can be carefully designed and manufactured according to the requirements of users.
Features
1. Scientific and reasonable design to control the voltage variation rate within 1 ~ 1.5%.
2. It is made of high-quality new silicon steel sheet to effectively reduce iron loss and improve conversion efficiency.
3. It is wound with high temperature resistant high-quality wire to reduce the loss of the transformer, and soaked in insulating paint for drying.
4. H-class insulation material and high-temperature resistant DMD insulation material are adopted to improve the high-voltage strength, insulation grade and prolong the service life.
6. Appearance design, beautiful and novel, large power density, small volume and high space utilization rate.
7. The products are divided into open type and protective type according to the structure. The protective type is processed into a box shell with steel plate. The transformer is inside the box shell and there are inlet and outlet wire holes outside the box shell, so as to install power lines and use fans for heat dissipation. If necessary, voltmeter and indicator light can be added according to user's requirements.
Model and its meaning
Three-phase dry type transformer technical parameter
Product model: SG, SBK
Number of phases: three phase
Capacity: 500 ~ 3000kva
Input voltage: three-phase 660V, 440V, 400V, 380V, 220V
Output voltage: three-phase 380V, 220V, 200V
Frequency: 50Hz / 60Hz
Efficiency: 95%
Insulation grade: F grade, H grade and HC grade are optional (conventional H grade) temperature resistance 180 °
Connection mode: star, triangle
Waveform distortion: no additional waveform
Insulation resistance: ≥ 50m Ω
Temperature rise: 60K
Electrical strength: power frequency sinusoidal voltage 3000V for 1 minute without breakdown and flashover
Executive standard: the product complies with vde0550, iec439, jb5555, gb226 and other international and national standards
Overload capacity: double the rated current for 1 minute
Ambient temperature: - 20 ℃ ~ + 50 ℃
Humidity: ≤ 95% RH, no condensation
Cooling mode: dry self cooling / air cooling
Workplace: no corrosive gas and conductive dust
Customized: it can be customized according to user needs
Product model, outline and installation dimensions
|
变压器型号 Model# |
外形尺寸（开启式mm） Overall dimension (open type mm) |
安装尺寸（mm） Installation dimension(mm) |
外形尺寸（mm） Overall dimension(mm) |
重量（KG) Weight(kg) |
|---|---|---|---|---|
| SG/SBK-1000VA | 200×150×210 | 180×120 | 310×280×300 | 10.8 |
| SG/SBK-1500VA | 240×150×230 | 180×120 | 350×300×360 | 17 |
| SG/SBK-1600VA | 240×160×230 | 180×150 | 350×300×360 | 19 |
| SG/SBK-2000VA | 250×180×230 | 180×170 | 350×300×360 | 25 |
| SG/SBK-3000VA | 300×180×230 | 220×180 | 400×350×410 | 29 |
| SG/SBK-4000VA | 300×180×280 | 220×200 | 400×350×410 | 40 |
| SG/SBK-5000VA | 300×200×280 | 280×180 | 500×400×480 | 46 |
| SG/SBK-8000VA | 380×220×350 | 280×190 | 500×400×480 | 58 |
| SG/SBK-10KVA | 380×240×350 | 280×220 | 500×400×480 | 60 |
| SG/SBK-15KVA | 420×220×400 | 280×220 | 600×500×580 | 78 |
| SG/SBK-20KVA | 420×240×410 | 280×260 | 600×500×580 | 110 |
| SG/SBK-30KVA | 480×260×460 | 320×260 | 600×500×580 | 154 |
| SG/SBK-40KVA | 530×320×500 | 320×280 | 750×600×720 | 180 |
| SG/SBK-50KVA | 530×350×520 | 450×260 | 750×600×720 | 210 |
| SG/SBK-80KVA | 630×400×580 | 450×280 | 850 ×650 ×820 | 290 |
| SG/SBK-100KVA | 720×500×650 | 550×350 | 950×700×850 | 330 |
| SG/SBK-200KVA | 850×550×700 | 600×400 | 1200×800×1100 | 480 |
| SG/SBK-300KVA | 1000×650×800 | 680×420 | 1200×800×1100 | 550 |
Service conditions
1. The altitude shall not exceed 2000 meters.
2. Ambient temperature: - 15 ℃ ~ + 45 ℃.
3. Relative humidity: ≤ 90%.
4. The installation site shall be free of gas, steam, chemical deposition, dirt, conductive dust and other explosive, flammable and corrosive substances that seriously affect the insulation strength of the transformer.
5. Those that do not meet the above use conditions shall be determined through consultation with us, and we can customize them according to the requirements of users.
Ordering instructions
1. Basic model, specification, capacity and quantity of transformer;
2. Primary (input) and secondary (output) voltage of transformer;
3. When there are multiple groups of secondary voltages, the capacity distribution of each output voltage shall be provided;
4. The outline and installation dimensions are for reference only. If the required dimensions need to be changed, they must be explained when ordering.
Note: if the user has special requirements, the company can carefully design and manufacture according to the user's needs.
