Welcome to SD Electric Power Equipment Co., Ltd.
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The products include 10-500kV power transformers, circuit breakers, circuit breakers, circuit breakers, PTs, interceptors, switch panels, cables, mobile substations and various generators.
![22 kilovolts, aluminum/copper core, polyvinyl chloride/ cross-linked polyethylene insulation, low-voltage/high-voltage power/electrical cable]( "22 kilovolts, aluminum/copper core, polyvinyl chloride/ cross-linked polyethylene insulation, low-voltage/high-voltage power/electrical cable")
22 kilovolts, aluminum/copper core, polyvinyl chloride/ cross-linked polyethylene insulation, low-voltage/high-voltage power/electrical cablePVC insulated power cable is suitable for laying fixed in power transmission and distribution lines with A.C. 50HZ and rated voltage of 0.6/1kV.
XLPE insulated power cable has a number of advantages compared with paper insulated and PVC insulated cables. XLPE cable has high electric property, mechanical property, heat aging performance, environmental stress crack resistance, chemical corrosion resistance, and it also has simple structure, convenient operation and it is not restricted by laying in large difference of level. It can be applied in high temperature of 90 degree for a long time.![220KW Cummins diesel generator set]( "220KW Cummins diesel generator set")
220KW Cummins diesel generator setBrand Endorsement: Dongfeng Cummins, as a joint venture brand, boasts mature engine technology, comprehensive global warranty service, and high parts interchangeability.
Compact Structure: Compared to higher-powered models, the JHK-24GF is compact and lightweight, facilitating transportation, installation, and relocation.
Easy Maintenance: Designed with ease of maintenance in mind, the filter and oil filler are conveniently located, simplifying routine maintenance.
Strong Environmental Adaptability: Capable of stable starting in ambient temperatures ranging from -15°C to 40°C (equipped with a preheating device), suitable for various climatic conditions.![2840 KVA 12.47/0.6KV Dry Type Traction Power Rectifier Transformer]( "2840 KVA 12.47/0.6KV Dry Type Traction Power Rectifier Transformer")
2840 KVA 12.47/0.6KV Dry Type Traction Power Rectifier TransformerThis transformer feed a diode rectifier, 6 phase, 12 pulses, which feeds the load with DC voltage 750v, the rectifier is not equipped with smoothing or interphase coil on 750v side, we are responsible of the compatibility of the transformer-rectifier system. The K factor of the transformer is K13, which means the transformer is operating in a heavy harmonic environmental, which is considered by us during design. The transformer is working 20/24 hour, 365 days at -35 to +40 ℃ and 100% humidity. The transformer is able to work at 150% of the rated power with peak of 300% for 20seconds due to peak of voltage every 3 minute without exceeding the temperature of 100℃,the temperature rise is 80℃ max at rated power, the insulation of the copper winding is adopt NOMEX with class H(220℃)![Pad Mounted Transformer 13.8kV IEEE Standards]( "Pad Mounted Transformer 13.8kV IEEE Standards")
Pad Mounted Transformer 13.8kV IEEE StandardsThe rated power of the transformer is 750 kVA with ONAN cooling. The primary voltage is 13.8kV with ±2*2.5% tapping range (NLTC), the secondary voltage is 0.4kV, they formed a vector group of Dyn11.![5000 KVA 22 KV Epoxy Resin Cast Dry Type Transformer]( "5000 KVA 22 KV Epoxy Resin Cast Dry Type Transformer")
5000 KVA 22 KV Epoxy Resin Cast Dry Type TransformerThe 5000kVA transformers will each be supplying 3x compressors with 790kW motors which are started Direct-on-Line (D.O.L). The intention is for the 5000kVA transformer to accommodate 2x 790kW motors starting simultaneously D.O.L with the third starting some time after.The HV and LV cables are bottom entry, an 800 * 400mm opening is provided on the bottom of the enclosure for HV cable incoming, an 400*400mm opening is provided on the bottom of enclosure for LV cable incoming. Which is sealed with temporary low-carbon steel plate.The shock proof rubber pad is installed at the bottom of the transformer, which has excellent isolation effect and can reduce the impact of live load and seismic force on the transformer. There are three surge arresters installed on the enclosure and connected to the each phase of HV terminal.The transformer is equipped with no load tap changer, the tapping range is ±2*2.5% at primary side.The cooling is AN,but client is request to add additional fans，which means can add the capacity of transformer. The connect group is Dyn11.![200 KVA Power Distribution Transformer]( "200 KVA Power Distribution Transformer")
200 KVA Power Distribution TransformerThe rated power of the transformer is 200 kVA with ONAN cooling, the primary voltage is 0.525/0.55 kV with ±2*2.5% tapping range (NLTC), the secondary voltage is 0.38 kV, they formed a vector group of Yyn0.![25 MVA 25000 KVA Substation Step Down Power Transformer]( "25 MVA 25000 KVA Substation Step Down Power Transformer")
25 MVA 25000 KVA Substation Step Down Power TransformerThese substation step down transformers were designed with ABB OLTC and equipped with AVR.![15kv kilovolts, aluminum/copper core, polyvinyl chloride/ cross-linked polyethylene insulation, low-voltage/high-voltage power/electrical cable]( "15kv kilovolts, aluminum/copper core, polyvinyl chloride/ cross-linked polyethylene insulation, low-voltage/high-voltage power/electrical cable")
15kv kilovolts, aluminum/copper core, polyvinyl chloride/ cross-linked polyethylene insulation, low-voltage/high-voltage power/electrical cablePVC insulated power cable is suitable for laying fixed in power transmission and distribution lines with A.C. 50HZ and rated voltage of 0.6/1kV.
XLPE insulated power cable has a number of advantages compared with paper insulated and PVC insulated cables. XLPE cable has high electric property, mechanical property, heat aging performance, environmental stress crack resistance, chemical corrosion resistance, and it also has simple structure, convenient operation and it is not restricted by laying in large difference of level. It can be applied in high temperature of 90 degree for a long time.
SD Electric Power Equipment Co., Ltd
The company is engaged in 35KV and below SCB10, SCB11, SCB12, SCB13, SCB14, SCB18, SCBH15(amorphous crystal) dry transformer, S9, S11, S13, S20, S22 oil-immersed transformer, box substation and other products and supporting equipment production, manufacturing, research and development, sales of professional The manufacturer has a technical team engaged in product research and development, design and manufacturing, and has strong technical force.
"Manufacturing standards, brand achievement" is our persistent pursuit, "excellent quality, integrity service" is our business purpose, the company in line with the development concept of "do fine, do standard", to further accelerate the pace of high-end enterprise products, standard demonstration, brand fame, and continue to evolve enterprise product standards into industry standards. Become a large-scale manufacturing enterprise with highly competitive and advanced advantages.
Check Our Frequently Asked Questions
Are you a manufacturer or a trading company?
We are SD Electric Power Equipment Co., Ltd. with independent factory and years of experience in transformer research and development and manufacturing, supporting customized production and export business.
What certifications have your products passed?
Our transformer products have passed ISO 9001, ISO 14001, ISO 45001 and other international quality management system certification, and also meet IEC, GB, IEEE and other standards, and can provide CE, CB, UL, GOST, EAC and other export certification.
Can I customize the transformer parameters?
Yes. We support customized customization according to customer's capacity, voltage level, connection group, temperature rise level, cooling mode and so on.
What are your main product types?
We mainly provide oil immersed transformer, dry transformer, main transformer, box substation, special transformer and so on.
Is installation or commissioning guidance provided?
We can provide remote installation technical guidance, and arrange engineers to provide door-to-door service when necessary (depending on the region and contract agreement).
Comprehensive Support & Information
For further assistance, our technical team is readily available to assist.
News Center
Stay updated with the latest trends in the industry
- 2024/08/05Click：The specific significance of transformers for economic developmentTransformer is an electrical appliance that uses the principle of electromagnetic induction to realize the exchange of electric energy. It is one of the important power equipment, widely used in power transmission and distribution systems. Transformers play an important role in energy conversion and power distribution, providing the required voltage, current and frequency for a variety of electrical equipment.
- 2024/08/05Click：Specifications for the use of power transformer coil demoulding1, when the coil of the power transformer is removed from the film, it is forbidden to use the fan to blow the casting body to prevent the cold affecting the fission.
- 2024/08/05Click：What are the application areas of dry transformers?Power system: Dry transformers can be widely used in transmission systems, distribution stations and industrial plants. They can provide the highest input and output voltages to meet a variety of electricity needs. In addition, dry transformers have good insulation and fire performance, which can provide higher security in the power system.
- 2024/08/05Click：The introduction of dry transformer temperature controllerDry transformer temperature controller is a new generation of multi-function computer temperature controller designed for reliable operation of air-cooled dry power transformer. Three Pt100 platinum thermal resistors embedded in the three-phase winding wire package of the dry power transformer are used to detect the temperature rise of the dry power transformer wire package, and according to the temperature rise, the start and stop of the cooling fan and the overtemperature alarm until the ultra-high temperature trip are automatically controlled to ensure the safe operation of the dry power transformer.
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