3D Wound Core Oil Immersed Efficient Three Phase | RFQ Sourcing Details
Low Voltage Switchgear · Quote on request
This is a product procurement detail page: check specs, images, category context and related sourcing paths before sending an RFQ.
Product specs
Buyer's Digest
Use this page as a product-first sourcing checkpoint before sending an RFQ. Category: Low Voltage Switchgear. Confirm application fit, capacity, materials, destination, lead time and compliance requirements before comparing suppliers.
Original product description
The oil-immersed transformer is a new type of high-performance transformer with a more reasonable structure and better performance.
It uses oil as the main insulation medium and relies on oil as the cooling medium, such as oil-cooled self-cooling, oil-cooled air-cooling, oil-cooled water-cooling, and forced oil circulation, etc.
The main components of the transformer include the iron core, windings, oil tank, oil reservoir, respirator, explosion-proof tube (pressure release valve), heat sink, insulation bushing, tap changer, gas relay, thermometer, and oil purifier, etc.
Due to the long-term immersion of the silicon steel sheets in the transformer, oil can seep into the interlayers, and the transformer oil has elasticity to act as a buffer. Therefore, the oil-immersed transformer has low noise . However, the voltage regulating switch is inside the oil tank.
When adjusting the voltage, the . If the , it is equivalent to a break in that circuit. If the , when the load is too large, the switch is prone to burn out.
Transformer normal service conditions 1.The height above the sea level is below 1000m;2.Highest air temperature +40ºC;3.Highest daily average air temperature+30ºC;4.Highest annual average air temperature +20ºC;5.Lowest outdoor air temperature -2 5ºC.
(defines in detail when transformer in special service conditions ) Type of cooling (1) Oil-immersed transformers usually adopt three cooling methods: oil-immersed self-cooling, oil-immersed air-cooling, and forced oil circulation.
The oil-immersed self-cooling method relies on the natural convection of oil to dissipate heat. (2). The oil-immersed air-cooling method is based on the oil-immersed self-cooling method, and additional fans are added to blow air into the oil tank and oil pipes to enhance the heat dissipation effect.
Forced oil circulation uses an oil pump to extract the hot oil from the transformer, cool it outside the transformer, and then send it back into the transformer.
Structure Function In the main substation of the urban rail transit power supply system, the main transformer usually adopts a three-phase oil-immersed transformer. The oil-immersed transformer mainly consists of the core, windings, oil tank, voltage regulating device, radiator, oil reservoir, gas relay, insulati
3D | Applications and Buyer Notes
3D is organized as a sourcing-ready Low Voltage Switchgear reference. The page combines visible product or company data with structured procurement cues so buyers can compare application fit, specifications, quantity, quality requirements and lead-time questio
Applications
- Initial shortlist building for related product or supplier options.
- Specification and application fit review before bulk purchasing.
- Category, keyword and detail-page comparison before sending an RFQ.
Key specifications
- Category
- Low Voltage SwitchgearBased on visible page data; confirm exact value in the RFQ.
- Unit
- setBased on visible page data; confirm exact value in the RFQ.
- Application
- PowerBased on visible page data; confirm exact value in the RFQ.
- Brand
- Golden TriangleBased on visible page data; confirm exact value in the RFQ.
- Certification
- ISO , ISO9001, CCCBased on visible page data; confirm exact value in the RFQ.
- Connected Group Label
- Dyn11, Yzn11, Yyn0Based on visible page data; confirm exact value in the RFQ.
- Cooling Method
- Oil-immersed Type TransformerBased on visible page data; confirm exact value in the RFQ.
- Core
- Core-type TransformerBased on visible page data; confirm exact value in the RFQ.
Buyer tips
- State quantity range and split-delivery needs before price comparison.
- Add certification, material or inspection standards when they affect acceptance.
- For time-sensitive projects, include target arrival date and destination.
- For special applications, describe operating condition, installation environment and duty cycle.
FAQ
What should buyers confirm first?
Confirm application, specification, quantity, destination and lead-time requirements before comparing offers.
Can buyers inquire when specs are incomplete?
Yes. Add model, material, size, use case and inspection needs in the RFQ to make replies comparable.
How should this listing be evaluated?
Check title, category, specifications and related keywords against the actual sourcing requirement.
Source mix: ugc
Key specifications
Product sourcing keywords
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