Outdoor 250kVA 315kVA 10kv 400V Three Phase Oil Immersed Transformer Copper Winding

Product Details
Customization: Available
Application: Power, Electronic, Lighting
Phase: Three
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  • Outdoor 250kVA 315kVA 10kv 400V Three Phase Oil Immersed Transformer Copper Winding
  • Outdoor 250kVA 315kVA 10kv 400V Three Phase Oil Immersed Transformer Copper Winding
  • Outdoor 250kVA 315kVA 10kv 400V Three Phase Oil Immersed Transformer Copper Winding
  • Outdoor 250kVA 315kVA 10kv 400V Three Phase Oil Immersed Transformer Copper Winding
  • Outdoor 250kVA 315kVA 10kv 400V Three Phase Oil Immersed Transformer Copper Winding
  • Outdoor 250kVA 315kVA 10kv 400V Three Phase Oil Immersed Transformer Copper Winding
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  • Overview
  • Product Description
  • Detailed Photos
  • Product Parameters
  • FAQ
Overview

Basic Info.

Model NO.
S11
Cooling Method
Oil-immersed Type Transformer
Winding Type
Two-winding Transformer
Certification
ISO9001-2000, ISO9001, CCC
Usage
Single-phase Transformer, Rectifier Transformer, Combined Transformer, Power Transformer, Distribution Transformer
Frequency Characteristics
Power Frequency
Shape of Core
Ring
Brand
Gangkong
Certificate
ISO /CCC/IEC
Power Frequency
1 Yea/Customized
Transport Package
Export Standard Packaging
Specification
2400*800*1900
Trademark
GANGKONG
Origin
Zhejiang China
HS Code
8504210000
Production Capacity
100000pieces/Years

Packaging & Delivery

Package Size
2500.00cm * 900.00cm * 2000.00cm
Package Gross Weight
2450.000kg

Product Description

Product Description


Oil immersed transformers utilize oil as their primary insulation medium and cooling agent. These include variations such as oil-immersed self-cooling, air-cooled, water-cooled, and forced oil circulation systems. Key components comprise the iron core, windings, oil tank, oil pillow, breather, pressure relief valve, radiator, bushings, tap changer, gas relay, thermometer, oil purifier, etc.
In oil-immersed transformers, the long-term immersion in oil allows it to penetrate between silicon steel sheets, providing elasticity and a cushioning effect, which significantly reduces noise. However, the pressure regulating switch, located inside the fuel tank, isn't visible during operation, posing a risk of poor contact. If the contact fails or is inadequate, it can lead to circuit breaker-like situations or potential switch burnout under high loads.

Operating temperature: These transformers can function under specified cooling conditions as per the nameplate, but the top oil temperature must not exceed 90 ºC. To avoid insulation aging, it's recommended to keep the top oil temperature below 85 ºC regularly, with the alarm setting at 80 ºC.

Overload: Transformers can handle normal and accident overloads. Overload signals should be installed. If unavailable, a comprehensive measuring instrument is required. The overload signal value for oil-immersed transformers should be 1.1-1.2 times the rated current, while dry-type transformers should have an overload signal value of 1.2-1.3 times the rated current (depending on the fan's current during operation).

Post-overload signal activation, monitor the load and temperature changes closely. Inspect and investigate the cause of the overload promptly. If the overload exceeds 1.3 times the rated current or if the temperature surpasses the upper limit, reduce the load. Utilize comprehensive side instruments for monthly data downloads and load analysis. For transformers prone to overload, shorten the data download cycle and perform timely inspections to identify and resolve overload causes. Reduce the load if it exceeds 1.3 times the rated current or if the temperature is above the upper limit.

Detailed Photos

Outdoor 250kVA 315kVA 10kv 400V Three Phase Oil Immersed Transformer Copper Winding

Product Parameters

Outdoor 250kVA 315kVA 10kv 400V Three Phase Oil Immersed Transformer Copper WindingOutdoor 250kVA 315kVA 10kv 400V Three Phase Oil Immersed Transformer Copper WindingOutdoor 250kVA 315kVA 10kv 400V Three Phase Oil Immersed Transformer Copper WindingOutdoor 250kVA 315kVA 10kv 400V Three Phase Oil Immersed Transformer Copper WindingOutdoor 250kVA 315kVA 10kv 400V Three Phase Oil Immersed Transformer Copper WindingOutdoor 250kVA 315kVA 10kv 400V Three Phase Oil Immersed Transformer Copper Winding

The iron core is continuously rolled and seamless. The R-type iron core's width ensures a circular cross-section, while the stepped iron core involves multiple layers of varied width. Post-formation, vacuum annealing is performed to relieve stress and minimize losses.
S11 and 10KV low-loss power transformers feature a fully sealed corrugated oil tank design. This prevents the transformer oil from contacting air, thereby avoiding moisture absorption and maintaining insulation strength. Additionally, the sealed design prevents oxygen from entering the tank, reducing insulation material aging, enhancing product lifespan, and offering significant social benefits.
Technical features: Energy Efficiency: The S11 model reduces no-load loss by an average of 30% and load loss by 25% compared to GB/T6451 standards, resulting in a 20% average reduction in operating costs.
Extended Service Life: The transformer oil tank's fully sealed structure ensures the oil does not contact the air, significantly extending the transformer's service life. The tank can be bolted or welded, further enhancing its durability.
FAQ
Are you the manufacturer or trader?
GANG KONG is a leading & professional manufacturer located in Zhejiangprovince of China.
What is your main markets?
Our main market is in home & a half in South-East Asia, Middle East,West-AfricaEast-European countries & Some South America..etc
What is your delivery & after-sales serive?
The delivery is according to order gty, normally for containers order we need 1month. Per each month 20 containers (20'ft or 40'ft)are no problem for us . Wecan answer user's question and solve their problem in 24 hrs per each day andgive full technical support in time to all of our products.
Do you accept OEM and ODM?
Yes. Our R & D team owns latest technology ,can develop & produce products ascustomers' drawing & under their brand
What is your payment terms?
a. 30% T/T in advance as deposit ,balanced against the shipping documents
b. irrevocable L/C at sight for order which amount is over 100 thousand USD
C. for old business partner,we can negociate together for other special terms
If i want to visit you ,how to do ?
Our company is located in Yueqing city of Zhejiang province China,which is about40 minutes by car to Wenzhou air port & 30 minutes from Yueqing train station.About 1 hrs by air from Shanghai international airport and 1 hrs from Ningbo bytrain. lf you need invitation letter before come to China,we can give it to you.

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