High harmonic wave tolerances 20MVA Hermetically Sealed Oil Immersed Power Transformer Customized

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio
• Phase: Three
• Model NO.: SCB10-20000-33/11
• Core: Core-type Transformer
• Cooling Method: Dry-type Transformer
• Winding Type: Three-winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC, ISO14001, ISO45001, CE, KEMA
• Usage: Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Brand: PEARL ELECTRIC
• Production Descriptions: Cast Resin/Dry type Power Distribution Transformer
• Reference Standards: IEC/GB/GBT/AS/TNB/DIN(Customized)
• Field of Application: indoor
• Capacity: 20000kVA
• Voltage (HV/LV): 33/11kv
• Impedance: 6~8%
• Connections (Vector Group): Dyn11/YNd11
• Frequency: 50Hz/60Hz
• Tapping Range: +/-2 x 2.5%(Customized), NLTC/OLTC
• Core materials: Silicon Steel
• Winding materials: Copper
• Noise Level: As per IEC Specifications
• Insulation Class: H-Class/F-Class(Customized)
• Temperature Rise: 125K
• Cooling Way: ONAN/ONAF
• Transport Package: Wooden Case, Wooden Pallet(Customized)
• Specification: As manufacturer′s design
• Trademark: PEARL ELECTRIC
• Origin: China
• HS Code: 8504349000
• Production Capacity: 15million kVA Per Year
• Package Size: 1.00cm * 1.00cm * 1.00cm
• Package Gross Weight: 99999.000kg

Product Description

 

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.



 

Annual Production Capability

Dry-type transformer	15,000MVA
Oil-immersed Distribution Transformer	18,000MVA
110kV &220kV Power Transformer	300 units
Substation Transformer	10,000 units

 

Certifications

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.

Partner

Packaging & Shipping

Detailed Photos

 

 

 

Product Display

 

01	Production Descriptions			Cast Resin/Dry type Power Transformer
02	Reference standards			IEC 60076
03	Capacity			20000kVA
04	Voltage (HV)			33kV
05	Voltage (LV)			11kV
06	Applied in			Wind Turbines
07	Impedance %			6~8%
08	Connections (Vector Group)			Dyn11
09	Frequency			50Hz/60Hz
10	Tapping Range			±2×2.5%,  NLTC/OLTC
11	Core materials			Silicon Steel
12	Winding materials			Copper
13	Noise Level (dBA)			As per IEC Specifications
14	Cooling method			ONAN/ONAF
15	Optional Accessories			Temperature sensor
16				Temperature control
17				Cooling fans
18				Skid-type underbase
19				Transformer wheels
20				Current transformer
21				Protective Enclosure(IP2X)

 

Pearl Electric's Technology

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.

 

 

FAQ

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.