A Class 3 Phase Oil-Immersed Transformer for Mining Applications 3500KVA 23/4.16KV

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio, Power Transmission
• Phase: Three
• Model NO.: S-3500-23/4.16
• Core: Core-type Transformer
• Cooling Method: Oil-immersed Type Transformer
• Winding Type: Two-winding Transformer
• Certification: ISO9001-2000, ISO9001, CCC, Kema
• Usage: Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer, Oil Immersed Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: U
• Brand: Pearl
• Type: Oil Immersed Distribution Transformer
• Reference Standards: IEC 60076
• Capacity: 3500kVA
• Rated H. V: 23kv
• Rated L. V: 4.16kv
• Impedance Voltage: 4 %
• Cooling Way: Onan/Onaf
• Core Material: Silicon Steel
• Winding Material: Copper/Aluminum
• Temperature Rise (W): 60/65K
• Vector Group: Dyn11/ Yyn0
• Insulation Class: a-Class
• Insulation Media: Mineral Oil as Per IEC 60296
• Lightning Impulse Withstand Voltage: as Per IEC Standard
• AC Withstand Voltage: as Per IEC Standard
• Transport Package: Wooden Package
• Specification: customized
• Trademark: PEARL ElECTRIC(PE)
• Origin: China
• HS Code: 8504220000
• Package Size: 1.00cm * 1.00cm * 1.00cm
• Package Gross Weight: 1.000kg

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.

application

 

Packaging & Shipping

 

Detailed Photos

 

 

Product Display

Production Descriptions	Oil-Immersed Transformer
Reference standards	IEC 60076
Capacity	3500kV
Voltage (HV)	23kV
Voltage (LV)	4.16kV
Applied in	Power generation & Distribution
Impedance %	6~8%
Connections (Vector Group)	Dyn11
Frequency	50Hz/60Hz
Tapping Range	±2×2.5%, NLTC/OLTC
Core materials	Silicon Steel
Winding materials	Copper
Noise Level (dBA)	As per IEC Specifications
Cooling method	ONAN
Optional Accessories	Oil Thermometer
	Gas Relay
	Press Relief Valve
	Oil Level Indicator
	Arcing Horn & Bushing
	Windings Thermometer
	Protective Enclosure (IP4X)

 

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.