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Quick Details

  • Place of Origin: Zhejiang, China (Mainland)
  • Brand Name: CNGNA
  • Model Number: S9 S11
  • Usage: Power
  • Phase: Three
  • Coil Structure: Toroidal
  • Coil Number: three sets
  • Type: oil immersed
  • Cooling: ONAN
  • Installation: Indoor or Outdoor

Packaging & Delivery

Packaging Details Standard Export Wooden Case or Polyfoam
Delivery Time 15days


1.IEC Standard/ ISO Certification
3.Oil cooled power transformer
4.Low loss Low noise
5.Easy to install

This kind of product is applied to power system of three-phase, 50/60Hz as well as 35kv and below, it is the main transformer equipment of medium and small-sized transformer substation, supplies power distribution, power and illumination for the industry and agriculture.
Company introduces in domestic and overseas advanced technique, adopts the latest material and optimizes design, which enables the product structure more reasonable, and greatly improves the product electric strength, mechanical strength and heat-sinking capability.
Structural Features
Iron core
The iron core is made of high quality cold rolled silicon steel sheet, adopts the kinds of types like full-bias multi-step seam, no punched hole, winding iron core, etc.. besides, both stainless steel stay plate and epoxy glass belt are for clamping it.
High quality enameled wire that is made of oxygen free copper or paper wrapped flat copper wire is used as conductor, the coils is provided kinds of types such as drum type, spiral type, improved spiral type, continuous type and interleaved type.
Oil tank
The oil tank is of barrel type or shield type, the heat-sinking element is provided with corrugated plate or plated radiator.
Not been equipped with trolley, but there is a base that accords with national standard rail gauge welded at the bottom of box for your convenience.
Safety protection device
   According to national standard and users requirements, It will be equipped with following devices: pressure relief valve, signal thermometer, oil purifier, oil conservator, oil sampling valve, etc..
Service Environment
Device types: outdoor type
Normal environment conditions of use: the elevation not more than 1000 m
Environmental highest temperature + 40°C, lowest -25°C
The special environment conditions of use: elevation of more than 1000 m
Environmental highest temperature + 40°C,  lowest -45°C. ( when you order details)
Mounting ambient: no corrosive gas, no obvious dirt environment
Accord to standard
1. IEC60076
2. GB1094.1 ~ 2-1996 power transformer
3. GB1094.3. 5-2003 power transformer
4. GB/T6451-2008 oil-immersed three-phases transformer power technical parameters and requirements 


Technical specs:


Rated capacity (KVA)Voltage combinationConnection symbolLoss(KW)No-load current(%)Impedance voltage(%)Weight(Kg)
H.V.(KV)High voltage tapping range L.V.(KV)loadNo-loadoil weightoverall weight
5033       35     38.5±5%0.4 0.415 0.433Dyn11 Yyno Yd111.210.212.00 6.5265860
1002.020.291.80 3101150
1252.380.341.70 3201190
1602.830.361.60 3601230
2003.330.431.50 3901300
2503.960.511.40 4251480
3154.770.611.40 4601590
4005.760.731.30 4901760
5006.930.861.20 5402140
6308.281.041.10 6202380
8009.91.231.00 7802800
100012.151.441.00 9103850
125014.671.760.90 10604600
160017.552.120.80 12105200






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