产品中心
Your current location :Home > Product > Dry Type Transformer >

20kV Three-phase Epoxy Cast Dry Distribution Transformer

  • Classification: Dry Type Transformer
  • Number of Views: 116次
  • Date of issue: 2023-06-20 13:21:34


  • Product overview:- Lower loss, energy saving and environmental protection, 35% lower than SCB11 transformer loss
    - Actual measurement is superior to GB and IEC standards, CE ROHS KEMA certification
    - Better safety excellent fire performance, F1 class
    - High lightning shock resistance level (125kV for 20kV 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 20kV urban distribution network, industrial and mining enterprises and civil building power supply and distribution system
    - 5793 sets of products have been successfully sold to Spain, Germany, France, Italy, Greece, Iceland, Finland, Albania and other European countries, providing OEM/ODM services
    - 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
20kV 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
 
额定容量Capacity 额定电压及分接范围Rated voltage&Off-load tapping   联结组标号
Vector
 GroupSymbol
空载损耗
NO-load
loss(W)
负载损耗
Load loss(W)
F级绝缘
空载电流
NO-load current(%)
短路阻抗Short
circuit impedance(%)
高压
H.V(kv)
高压分接范围
 High pressure
  Tap range(%) 
低压
L.V(kv)
30 20 ±5%
±2.5%
0.4
0.69

Dyn11
Yyn0
150 710 2 4
50 215 1000 2 4
80 295 1380 1.5 4
100 320 1570 1.5 4
125 375 1850 1.3 4
160 430 2130 1.3 4
200 ±5%
±2x2.5%
495 2530 1.1 4
250 575 2760 1.1 4
315 705 3470 1 4
400 785 3990 1 4
500 930 4880 1 4
630 1070 5880 0.85 4
630 1040 5960 0.85 6
800 1215 6960 0.85 6
1000 1415 8130 0.85 6
1250 1670 9100 0.85 6
1600 1960 11700 0.85 6
2000 2440 14400 0.7 6
2500 2880 17100 0.7 6

 

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
label:

Online Message

Comments or suggestions can be submitted to us

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

whatsapp
(+86) 15853252696
WhatsApp Click Contact