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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 phase duplex winding
  • Type: oil-immersed
  • High Voltage: 6kv 6.3kv 6.6kv 10kv 10.5kv 11kv 13.8kv
  • Low Voltage: 230v 400v 415v 433v
  • Winding material: Copper Aluminum can choose
  • Oil No.: 25# 45#

Packaging & Delivery

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


2.Rated voltage:6-13.8kv
3.Oil cooled 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
106       6.3     6.6     10     10.5     11     13.8     ±5%   or     ±2*2.5% 0.4 0.415 0.433Dyn11 Yyno 445172
200.440.13.00 57230
300.630.132.30 75295
500.870.172.00 88395
631.040.21.90 95420
801.250.251.90 103480
1001.50.291.80 115540
1251.80.341.70 130645
1602.20.41.60 145740
2002.60.481.50 175885
2503.050.561.40 1951010
3153.650.671.40 2301205
4004.30.81.30 2551375
5005.10.961.20 2851620
6306.21.21.10 4.53501960
8007.51.41.10 4052310
100010.31.71.00 4902690
1250121.951.00 5503315
160014.52.40.80 6253985
2000182.60.70 7454520
2500203.30.60 8705200







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