Dongguan Baocheng Power Technology Co., Ltd. is a full program of R & D, manufacturing and sales as one of the magnetic devices. It specializes in designing and customizing the "magnetic devices" of modern power electronic systems for customers, including applications from power frequency to high frequency, from low voltage to high voltage, and high frequency and high voltage. The system covers all kinds of dry / water-cooled inductors, reactors, transformers and transformer cabinets. The power range of the product covers 50VA-5000KVA, the frequency range covers 50Hz-50 KHz, the voltage level covers all kinds of high / low voltage, high / frequency products, and the K- coefficient of application in the non linear load environment. Press (patent product) etc. Company founded in 2010. The company's headquarters is located in Jinhe community of Zhangmutou town in Dongguan. The practical area of the factory is about 10 thousand square meters. It sets up distribution outlets in East China, North China, northwest and other places. It is a high-tech enterprise in Dongguan. The company has more than 20 patents.
| No. | Parameter | Value |
| 1 | Rated Capacity | 500KVA |
| 2 | Primary Rated Voltage | 380V-line voltage |
| 3 | Primary Rated Current | 760A |
| 4 | Secondary Rated Voltage | 380V-line voltage,withstand voltage +/-15% |
| 5 | Secondary Rated Current | 760A |
| 6 | Connection Group | Dyn11, neutral extraction |
| 7 | Rated Frequency | 50Hz |
| 8 | Phase Number | three phase |
| 9 | Overload Capacity | Rated long run |
| 10 | Short Circuit Resistance | 4% |
| 11 | Voltage Transformation Ratio Torlerance | <2% (no load) |
| 12 | Efficiency | >98% |
| 13 | Insulation Grade | H |
| 14 | Temperature Rise limit | Winding temperature rise <100K, Core temperature rise <100K |
| 15 | Insulation Resistance | Greater than 10MΩ(DC1000V) each between primary winding, secondary winding and bobbin |
| 16 | Cooling type | AN/AF |
| 17 | Magnitude of Partial Discharge | Discharge at 1.1 rated voltage less than 10PC |
| 18 | Insulation Level(to ground) | Withinstand voltage at power frequency in one minute: primary 3KV, secondary 3KV |
| 19 | Transformer Sound Level | <60dB, sound level at 1 meter distance |
| 20 | Provide winding temperature signal | PT100 platinum resistor(from terminal) |
| 21 | Cooling Mode | Self cooling |
| 22 | Conductor material | Copper foil/wire |
| 23 | Wire type | Extrusion on both sides of upper end(copper bar) |
| 24 | Copper bar requirement | Surface flatness less than or equal to 0.1mm,the minimum electrical clearance between the copper bars of diffent phases is 10mm, and the minimum creepage distance is 12.5mm. |
| 25 | Cable clamp | Inlet and outlet lines can be connected with cables. |
| 26 | Ambient Temperature | '-10ºC~40ºC |
| 27 | Relative Humidity | 5%~95% |
| 28 | Altitude | Height above sea level<1000m |
| 29 | Seismic intensity | The earthquake intensity less than 7 degree |
| 30 | Installation site | Indoor |
| 31 | Pullution grade | 3 grade |
| 32 | Projected lifetime | over 30 years |
