Customized Three Power Dry Type Isolation Mining Supply Phase Converter Electrical Transformer

• Customization: Available
• Application: Power, Coal Mine Explosion Prevention
• Phase: Three
• Model NO.: SG-250kVA 3300V-1140V/400V
• Core: Core-type Transformer
• Cooling Method: Water Cooled
• Winding Type: Multi-winding Transformer
• Certification: ISO9001, CE
• Usage: Power Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Rectangular Core
• Brand: Lushan China
• Type: Three-Phase Dry-Type Transformer
• Capacity: 250kVA
• Work Efficiency: 99.5%
• Primary Voltage: 3300V
• Secondary Voltage: 1140V/400V
• Insulation Class: H
• No Load Loss: Customized
• Load Loss: Customized
• Impedance: Customized
• Winding Materials: Copper
• Vector Group: Yd11 Dy11 Yy6 Yd5 Dy1
• Optional Accessories: Temperature Controller, Fans, Enclosure Case
• Executive Standard: GB/T 1094.11-2022, GB/T 25120-2023
• Transport Package: Wooden Pallet/Wooden Case
• Trademark: Lushan
• Origin: Changsha China
• HS Code: 8504339000
• Production Capacity: 500pieces/Year

Product Description

 

Product Description

Description:

The three-phase dry-type transformer for coal mine harvesters powers underground equipment. It's explosion-proof and efficient, ensuring stable ops in hazardous mines and facilitating mining.
 

1.High Efficiency & Strong Protection

Over 99% efficiency. Advanced copper wire winding and core design cut energy losses, stably outputting proper voltage, saving energy for harvester's long use.

 Class H insulation and three-proofing (waterproof, dustproof, anti-corrosion). The explosion-proof shell and sealed structure prevent explosion risks, protecting personnel and equipment.

 

2.Compact & Efficient Structure

Copper wire winding makes it compact. Full copper plate for heat conduction and water cooling system ensure good heat dissipation. Flatness ≤ 1.6μm for smooth ops and fitting complex underground layout.

Operation Environment

A)  Altitude: Not exceeding 1000m, shall be derating used if above 1000m;
B)  Ambient Temperature: -25ºC~55ºC.
C)  Relative Humidity: ≤95%;
D) As to the installation site, to make sure no bad effect on transformer insulation, chemical deposition, dust, and other explosive or erosive medium.
E) The supply voltage approximates sinusoidal wave, and the three-phase voltage is relatively balanced.

Product Parameters

Technical Parameter

Capacity	50VA~2500kVA	Working Efficiency	≥95%
Rated Voltage	<10kV	Temperature Rise	≤125K(H class)/<100K(F class)
Rated Frequency	50~60Hz	Impedance	Upon customer request
Winding Materials	Copper/Aluminum	Connection Section	Dyn11 or upon customer request
Sound Level	≤75dB	Ingress Protection	Upon customer request
Insulation Class	F/H/A/B	Package	Wood Crate/ Cardboard Box
Leading Time	7~30 working days	Insulation Resistance	>100MΩ
Dielectric Withstanding Voltage : Upon customer request

 

 

Company Profile

Lushan ,established in 1975 ,is a manufacturer specializing in the production and
development of transformers and reactors, intearating both domestic and internationa
advanced technologies.

The company's leading products incude single-phase isolation transformers
three-phase isolation transformers, reactors, medium and high-frequency products
transformers for rail transit projects, transformers for wind power and photovoltaic
projects,mining transformers,hydroelectric excitation transformers,furnace transformers intelligent and safe electricity transformers, and more. With over fifty years of experience in transformer and reactor industries, the company has accumulated rich technical expertise and experience in various application fields. Through independent  and collaborative research and development efforts,the company actively explores and applies new technologies, materials,and processes, continuously optimizing and innovating with a focus on high-tech solutions. The company's technical capabilities are among the leading in China.

In terms of quality management and assurance, the company strictly adheres to the
IS0 9001:2015 system standard, with most products certified by CE, TÙV, and PSE
Its products are sold nationwide and exported to numerous countries and regions
including Japan, Europe, and North America, gaining the trust and praise of customers.

For fifty years, Lushan has upheld the core philosophy of"Beyond Products,Delivering Solutions." constantly pursuing innovation in the industry. lt has accumulated extensive technical expertise and experience in many application fields. Through independent R&D and collaborative development, the company explores new technologies, materials and processes, advancing modernization and innovation. Its key technical capabilities are now at the forefront of the domestic industry.

FAQ

Q1: Are you a Manufacturer, factory or Trading company ?

A1: We are the manufacturer specializing in power transformer,inductor,and reac
tor production for 50 years.

Q2: How can l trust you ?
A2: Our company, Lushan Electronic was founded in 1975 specializing in power
transformer and reactor over 50 years, We have been cooperated with Fortune 500
companies such as CRCC,CRRC for over 10 years. We have many patent certificates
CE certificate, TUV certificate, lS09001 certificate.Our products are widely used all
around the world.We believe that we can provide you products of good quality
with competitive price.

Q3: What's your major products?
A3: Dry-type transformer, oil-immersed transformer, high voltage and low voltage
transformer, line reactor, filter reactor, high-frequency transformer and reactor.

Q4: What's your warranty terms?
A4: We offer at least 12 months warranty time.

Q5: Lead time for mass production?
A5:7 to 25 working days or depending on order quantity.

Q6: What's your payment terms?
A6: T/T,T/C or negotiation.

Q7: How do you conduct quality control in your factory?
A7: We implement 100% QC inspection to ensure every product is qualified. We
have 8 QC inspections during the manufacturing process from raw material to the
final products.

Q8: Could l have your catalog and price list for trial order in MOQ quantity?
A8: All of our products are showing on Made-in-China or official website, you are
always welcome to ask me to get more information directly. Sample order is acceptable.

Q9: Can your product be customized?
A9: Considering differences in voltage, frequency and other speciality of transform-
er product in different countries and regions, our product can be customized ac-
cording to your requirements.

Q10: What should provide to make customized transformer?
A10: Technical drawing is the best,or tell us power (capacity), voltage, installation
size limitation, insulation class and etc.

Q11: When can l get the price?
A11: Usually we quote within 24 hours after we get your inquiry.