Audited Supplier
Main specifications:
Type: Dry Type Traction Transformer
Capacity: 1000kVA, 1250KVA, 1500KVA, 2000KVA and Customized Type
Middle voltage: 10KV, 22KV, 35KV and Customized Type
Standard: IEC/IEEE/ANSI/GOST/NEMA/ECO/MEPS/ESKOM/MS/JEC/TEIAS
Application: For Railway Traction
Transformer Description:
The traction transformer is often used for railway traction and is a special voltage level power transformer. For railway vehicles, traction transformers are one of the most important equipment and the core part of the entire electric traction system, ensuring the stable operation of railway vehicles such as locomotives and high-speed trains.
Transformer Features:
Pearl Electric designs and produces dry-type traction transformers for use in urban rail transit traction power supply systems. They adopt a dry-type excitation free voltage regulation method to convert 35kV power frequency voltage on the grid side into high-frequency 1180V sine waves. Its main performance indicators include capacity, connection group, cooling method, insulation heat resistance temperature, and partial discharge level. In the traction power supply system, dry traction transformers transmit electrical energy from the power system to the traction load, providing power for electric trains.
Dry type traction transformers have various advantages and are suitable for urban rail transit traction power supply systems. They can meet the operational requirements in different environments and are an important component of the modernization development of urban rail transit. They have the following advantages
1. Adopting dry excitation free voltage regulation method, it has the advantages of small volume, light weight, low noise, and easy maintenance.
2- Advanced impregnation technology is adopted to improve the electrical and mechanical performance of dry-type traction transformers, with higher reliability and stability.
3- Adopting natural air cooling method does not require additional cooling equipment, reducing operating and maintenance costs.
4- Adopting epoxy resin impregnation insulation, it has high heat resistance and electrical performance, and can meet the operating requirements in harsh environments such as high temperature, high humidity, and high altitude.
5- Adopting energy-saving design, it has high efficiency and can reduce energy loss and operating costs.
6- Advantages such as environmental protection, safety, easy installation and debugging.
Pearl Electric Co.,Ltd.(Hereinafter referred to as Pearl Electric) located in Panyu District, Guangzhou City, which is an enterprise mainly engaged in the R&D and manufacture of power transmission and transform.
Pearl Electric is the former state-owned Panyu Electrical Motor Factory established in 1958. To facilitate Company's development, the Company was formally renamed as Pearl Electric Co., Ltd. in January, 2010. Pearl Electric occupies a factory area of 10.5 hectares, with more than 7.2 hectares of modern factory building. Pearl Electric has more than 600 employees and more than 600 sets of specialized manufacturing equipment.
Pearl Electric is engaged in the research and development, production and operation of dry-type transformers of 35kV and below, combined transformers, prefabricated substations, reactors, oil-immersed power transformers of 220kV and below , transmission and distribution and Control equipment, etc. The annual output of transformers exceed 20 million kVA, and the pad-mounted products exceed 4000 sets.
Our company is committed to providing customers with safe, efficient and intelligent power transmission solutions, and has become a leading enterprise in the domestic nuclear power dry-type transformer and new energy box-type substation industry and a leading enterprise in the environmental protection and energy-saving transformer industry.
| Dry-type transformer | 15,000MVA |
| Oil-immersed Distribution Transformer | 18,000MVA |
| 110kV &220kV Power Transformer | 300 units |
| Substation Transformer | 10,000 units |
We have established a sound quality management system, and have passed the certification of ISO9001:2015 quality management system, ISO14001:2015 environmental management system, and ISO45001:2018 occupational health and safety management system.
In order to ensure product quality and in order to meet the development and supply of our dry-type transformers in overseas international markets, we all participate in type and special tests of internationally recognized independent testing laboratories, and obtain relevant reports.
Core:
- Our transformer's core is made of high quality cold rolled grain oriented silicon steel sheet with high magnetic permeability. It is using full 45° slope lamination, so that the no-load loss and the no-load current are reduced efficiently.
- We use Simulating Analysis in the core model design, so that we can calculate the frequency and size of the vibration exactly and avoid the core cavity resonance.
- Between core & windings, and core & frame, we use spring connection. Then the noise is lower 10 to 15dB than the standard.
LV Winding:
- LV windings, above 400 kVA capacity, are adopting superior foil conductors, thus to obtain better amper-turn balance and reduce more transverse magnetic flux leakage. Then to greatly improves transformer's anti-short circuit capability.
- The wise design of air passage within the winding, greatly increasing the winding's heat dispersion effect. It helps to decrease temperature rise and improve products' overload capability.
HV Winding:
- HV windings are made of superior copper-conductor wires. Adopting fiberglass to reinforced insulation.
- The HV windings are casting under vacuum and high pressure conditions with Germany HUBERS vacuum Cast Machine. In this way, transformer's resin can get the best penetration. It can also greatly reduce its partial discharge (partial discharge for 11kV product could be lower than 5pC).
- HV windings are adopted optimized structure to improve transformer's distribution of electric field.
- We use our existing technology calculate and analysis Lightning wave process simulation. Then substantially improving product's anti-lighting capability.
Q: Are you a Manufacturer, factory or Trading company ?
A: Yes, We are engaging in the research and development, production and operation of transformer for over 60 years.
Q: What's your warranty terms?
A: We offer 12 months warranty time.
Q: Production Time?
A: 30 to 45 days or depending on order requirements.
Q: What's your payment terms?
A: T/T , L/C or negotiation.
Q: How do you conduct quality control in your factory?
A: We implement 100% QC inspection to ensure every product is qualified. We have over 10 times QC inspections during the manufacturing process from raw material to the final products.
Q: Do you have the products in stock?
A: Normally no. All our products produce depending to your order quantity.
Q: How can I trust you ?
A: Pearl Electric is the former state-owned Panyu Electrical Motor Factory established in 1958, Pearl Electric occupies a factory area of 10.5 hectares, with more than 7.2 hectares of modern factory building. Pearl Electric has more than 600 employees and more than 600 sets of specialized manufacturing equipment. We have many patent certificates, CE certificate, KEMA certificate, ISO9001 certificate. Our products are widely used all around the world. We believe that we can provide you products of good quality with competitive price. We are the audited diamond supplier of Made-In-China.
Q: What should provide to make custom transformer ?
A: Technical drawing and technical specification document are the best, or you can tell us some details technical specification date as below "Quotation and Ordering Required Information".
Q: Could I have your catalog and price list for trial order in MOQ quantity?
A: All of our products are showing on Made-in-China or official website, you are always welcome to ask us to get more information directly.
