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6.6kV Three-phase Epoxy Cast Dry Distribution Transformer

  • Classification: Dry Type Transformer
  • Number of Views: 66次
  • Date of issue: 2023-06-20 13:21:33


  • Product overview: 
    - Low loss, energy saving and environmental protection, 30% energy saving than SCB11 transformer loss
    - Actual measurement is better than GB and IEC standards, CB, CCC, KEMA SASO and other certification
    - Better safety excellent fire performance, F1 class
    - High lightning shock resistance level (95kV for 10kV products)
    - Equipped with perfect temperature protection control system, it can operate at 120% rated load under forced air cooling condition
    - Global operation verified high reliability, has been exported to more than 50 countries and regions
    - Mainly used in 11KV urban distribution network, industrial and mining enterprises and civil building power supply and distribution system
    - 5793 sets of products have been successfully sold to Kazakhstan, Uzbekistan, Pakistan, Afghanistan, Bangladesh, Indonesia, Vietnam and other countries
    - Implementation standard: IEC 60076 series, GB1094 series, GB/T6451-2008
    - The shell material is aluminum alloy, cold rolled steel plate, stainless steel, etc. (protection grade IP20, IP23, etc.)

     
     

Product advantages
 6.6kV Three-phase Epoxy Cast Dry Distribution Transformer
 Leading technology
- High pressure copper tape winding technology, flame retardant formula vacuum pouring
- Low pressure copper foil winding technology, thermosetting epoxy prepreg cloth insulation
- High quality iron core 45° full oblique joint step laminated structure
 
The iron core
- The core is made of high quality cold rolled grain oriented silicon steel sheet insulated by mineral oxide
- Minimize loss level, no-load current and noise by controlling the cutting and stacking process of silicon steel sheet
- Apply class F or CLASS H core paint on the surface of assembled cores to prevent corrosion and rust
 
Low voltage winding
- The low voltage winding is made of high quality copper foil
- Insulated by thermosetting epoxy preimpregnated cloth
- Winding ends are insulated with thermosetting epoxy preimpregnated cloth
- Excellent insulation resistance
- Very good resistance to radial stress caused by short circuit
- The outgoing terminal of the low-voltage winding is tinned copper bar
- The whole winding is heated in the oven to 140°C and polymerized for 4 hours. It has excellent corrosion resistance of industrial gas
 
High voltage winding
- Made of insulated copper wire and using the patented technology of Hengfengyou Electric
- For small volume products, the high voltage winding uses a linear voltage gradient from top to bottom
- For products with large capacity, the high voltage winding is made by "tape winding" technology
- The application of these methods makes the electric field between adjacent conductors very low
- Transformer structure is reliable during normal operation and transportation
 
High quality material
- Baosteel, Wisco silicon steel sheet
- China produces high quality anaerobic copper
- Huntsman Epoxy resin (including flame retardant filler)
 
Patent technology
- The high voltage coil is molded under high vacuum, and the castable material system adds a unique flame retardant filler, which is a patented technology of Hengfengyou Electric. When the transformer is exposed to flame, it will immediately self-extinguish. With unique and excellent flame retardant characteristics and the ability to adapt to bad working environment.
 
 

Product parameters

Capacity: 165kVA American box
Rated voltage: 10kV, 11kV, 13.8kV, 20kV, 33kV, 35kV;
Maximum operating voltage (kV) 38.5kV
Conditions of use:
1. The temperature:
Maximum daily temperature (℃) : 40; Minimum daily temperature (℃) : -25; Maximum daily temperature difference (K) : 25; Average temperature of the hottest month (℃) : 30; Maximum annual average temperature (℃) : 20; Average daily relative humidity (≤%) : 95; Average monthly relative humidity (≤%) : 90
2, altitude (≤m) : 1000
3, solar radiation intensity (W/cm2) : 0.1
4. Maximum ice thickness (mm) : 10
5, 10m high from the ground, maintain 10min average maximum wind speed (m/s) : 35
6. Ground horizontal acceleration (M/S2) : 2
7, installation place: outdoor; 8. Pollution grade: ⅲ
 



Ordering instructions
 
- Main parameters of transformer (voltage, capacity, loss and other main parameters)
- Transformer operating environment (altitude, temperature, humidity, location, etc.)
- Other customization requirements (coupling groups, colors, oil pillows, etc.)
- The minimum order quantity is 1 sets, worldwide delivery within 7 days
- Normal delivery period of 30 days, worldwide fast delivery
 
 
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Qingdao Hengfengshuai Electric Co., Ltd     

Hotline:+86 532-87936207     

Address: No. 251, Xingyang Road, Chengyang District, Qingdao, Shandong

Email: hfs@hengfengshuai.com      

Customer service email: service@hengfengshuai.com      

website:https://www.hengfengshuai.com

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