30kva to 2500kVA Distribution Oil Immersed Power Transformer
♥ Oil Transformer
Information
♥ Rated Capacity: 15kVA 30kVA 50kVA 63kVA 80kVA 100kVA 125kVA 150kVA 200kVA 250kVA 315kVA 400kVA 500kVA 630kVA 800kVA 1000kVA 1250kVA 2000kVA 2500kVA 3150kVA 4000kVA 5000kVA 6300kVA 8000kVA 10MVA
♥ Rated Voltage:
33kV/11kV 33kV/415V 33kV/6.6kV 33kV/380V 35kV/10kV 35kV/0.4
♥ The rated voltage can be customized as customers' requirements.
♥ Porduct Feature
1 - Low loss, low noise, low partial discharge, low temperature rise and energy-saving
2 - Adopt the latest insulatoin structure
3 - Excellent anti-short-circuit ability.
4 - As to the heat dissipating element adopts corrugated sheet or sheet radiator and other components.
5 - The iron core adopts high quality cold rolled graind oriented silicon steel sheet ,it is low loss and small magnetostriction.The whole iron core adopts the structure of 45-degree full oblique joint and round cross-section, which will not be loosened due to vibration during transportation and operation.
Oil immersed transformer ,use Japanese Toshiba analysis soft ware and our company special calculation and validation procedures to make sure the performance of products. Superior process equipment ,elaborate material selecting and efficient manufacturing make the transformer have small volume,light weight,low loss,low partial discharge,low noise characteristics.
The product is stable,reliable,economic, environmental protection.It can be applied to many places such as power plants,transformer substation ,large industrial mining and petrochemical enterprise and so on.
♥ Porduct Structure
Oil Immersed Transformer Wiring Port:
High and low voltage wiring port with self locking nut.
Oil Level Measure Device:
Oil amount is clearly visble,red represents oil amount is
insufficient,blue represents normal.
Pressure Relief Valve:
Protect the oil tank from deformation or bursting.The water and air
outside the oil tank cannot enter the oil tank,and the inside of the
transformer will not be polluted by the air.
Off circuit Tap Changer:
It can be directly flxed on the cover or wall of the transformer,and can be tapped and replaced under no excitation state.
Gas Relay:
More sensitive sersing of changer in the internal gas of the transfomer to protect the transformer.
Oil Drain Valve:
Quick oil drain,reducing maintenance time,Convenient maintenance.
| (Part Product Info)10kv-35kv Distribution Transformer |
| Rated Power(kva) |
High Voltage(kv) |
Low Voltage(kv) |
Connection symbol |
No-load loss(w) |
On-load loss(w) |
No load current(%) |
| 400kva |
10kv
11kv
20kv
35kv |
0.4 |
Ydn11
Yyn0 |
570 |
4300 |
0.45 |
| 500kva |
680 |
5410 |
0.45 |
| 630kva |
810 |
30800 |
0.4 |
| 800kva |
980 |
7500 |
0.4 |
| 1000kva |
1150 |
10300 |
0.35 |
| 1250kva |
1360 |
12000 |
0.3 |
| 1600kva |
1640 |
145000 |
0.6 |
| 2000kva |
1950 |
19140 |
0.6 |
| 2500kva |
2340 |
22220 |
0.5 |
| |
|
|
|
|
|
|
♥♥Design Products for Customer Needs♥♥
Yixin Electric Power Equipment has more than 50 engineering and technical personnel, more than 1000 employees, covering an area of 240, 000 square meters. Whether in terms of design talent or production experience, our company is one of your best choices.
★Design and Engineering
- Specification Development: The process begins with understanding the customer's requirements, including the desired voltage, capacity, and environmental conditions.
- Electrical Design: Engineers design the electrical aspects, including the core, windings, insulation, and cooling system.
- Mechanical Design: Simultaneously, mechanical aspects like the enclosure, tank, and mounting features are designed to ensure they can withstand environmental and operational stresses.
★Material Selection and Procurement
Due to our rich experience in production and manufacturing for power transformer, we have a wealth of selection advantages and price advantages in the selection of raw materials and suppliers. The quality and price of the products are advantages for us.
- Core Material: Grain-oriented electrical steel is typically selected for the transformer core due to its high magnetic permeability.
- Copper/Aluminum Windings: High-conductivity copper or aluminum is chosen for the windings.
- Insulation Materials: Insulating paper, pressboard, and varnishes are selected based on their dielectric properties.
- Tank and Enclosure: The materials for the tank and enclosure (usually steel) are selected for durability and corrosion resistance
★Core Construction
In order to assure the implementation ofthe advance design and manufactural tech-nology,some key equipments,moulds andtools had been repleced,moulds andimprovedwith the new technologies to meetthe requrements of product quality.
- Core Cutting: The steel sheets are cut into specific shapes and sizes according to the design.
- Core Assembly: These sheets are stacked together to form the transformer core, usually in a step-lap formation to minimize losses.
★Winding Process
- Winding Design: The windings are designed based on the voltage and current requirements.
- Winding Construction: The copper or aluminum wires are wound around the core using precision machines to create the primary and secondary windings.
- Insulation: Each layer of winding is insulated to prevent short circuits and ensure proper electrical isolation.
Foil Winding Machine
Automatic Coil Winding Machine
Horizontal Coil Winding Machine
Vertical Coil Winding Machine
★Assembly
- Core and Coil Assembly: The windings are placed around the core, and the entire assembly is secured in place.
- Tank Assembly: The core-coil assembly is placed into the transformer tank, and connections are made for input and output terminals.
- Filling with Insulating Fluid: The tank is filled with an insulating fluid, typically mineral oil, to provide cooling and electrical insulation.
★Vacuum Drying
The transformer is placed in a vacuum oven to remove any moisture trapped in the insulation and the insulating fluid. This step is crucial for ensuring the longevity and reliability of the transformer.
★Sealing and Painting
- Sealing: After vacuum drying, the tank is sealed to prevent any leakage of insulating fluid.
- Painting: The exterior of the transformer is painted to protect it from environmental factors like moisture, dust, and UV radiation.
★Testing
- Electrical Testing: The transformer undergoes various electrical tests, including voltage tests, insulation resistance tests, and short-circuit tests, to ensure it meets all specifications and standards.
- Leakage Testing: The transformer is checked for any leaks in the tank or bushings.
- Final Inspection: A thorough final inspection is conducted to ensure all components are properly assembled and functioning.
- Transformer ratio and connection
Measurement of load losses and short circuit impedance.
Measurement of no-load losses.
Separate source withstand voltage test
Induced over-voltage test
Temperature rise test
Lighting impulse withstand voltage test
Measurement of partial discharge
Other transformers like rectifier transformer are also available on request.
★Quality Assurance
A quality control team reviews all test data and inspections to ensure the transformer meets all regulatory and customer-specific requirements.
★Packaging and Shipping
- Packaging: The transformer is carefully packaged to prevent damage during transport.
- Shipping: It is then shipped to the customer or the installation site.
Company Profile
Our company has a relatively strong production capacity and efficient marketing team.Products include 110KV,220KV large ultra-high voltage transformers and 35KV below various dry transformers,oil-immersed transformers,amorphous alloy transformers,pre-installed substation and various specifications of box transformer,furnace transformer,rectifier transformer,mining transformer and other special transformers.All products of the company have passed the routine,type and special tests of the National Transformer Quality Supervision and inspection Center and wuhan High Voltage Research Institute of the State Electric Power Corporation.The enterprise has passed IS09001:2015 quality management system certification;Jiangsu province enterprise measurement certification;At the same time,10KV,35KV class power transformers,box substation and the adoption of IEC certification.Product sales cover the national market,but also exported to Australia,New Zealand,India,Madagascar,Vietnam and other countries and regions.
Certifications
Customer Reviews
FAQ
1.Who are we?
We are transformer company, based in Jiangsu, China, start from 1992,sell to Domestic Market(80.00%),Southeast Asia(20.00%). There are all about 1200-1500 people in our company.
2.How can we guarantee quality?
Always make a final Inspection before shipping.
3.What can you buy from us?
110kV-220kV Oil-immersed Power Transformer,Dry-type Transformer,Unpacked H Grade Dry Transformer,Oil-immersed Distribution Transformer, Pad-mounted Transformer,Enameled Wire,Composite Wire,Transposed Wire,Paper Covered Wire,Film Wrapped Wire.
4.Why should you buy from us not from other suppliers?
As an enterprise specializing in transformer production for 31 years, we have high quality, fast delivery, guarantee after-sales service and factory price. What's more, we have ISO9001-2008, OHSAS 18001:2007, ISO4001:2004L ,UL ,CE certificates and IEC, ANSI, KEMA, GOST standard.
5.What services can we provide?
Accepted Delivery Terms: FOB,CIF,EXW; Accepted Payment Currency:USD,CNY; Accepted Payment Type: T/T,L/C; Language Spoken:English,Chinese.
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