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Ningbo Ville Electric Co., Ltd.

Power Transformer, Transformer, Three-Phase Power Transformer manufacturer / supplier in China, offering 220kv 120mva Power Transformer with on Load Tap Changer, 230kv Auto Power Transformer / Power Distribution Transmission /Power Transformer, Distribution Transformer/Power Substation and so on.

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Supplier Homepage Product Power Transformer Auto power transformer 220kv 120mva Power Transformer with on Load Tap Changer

220kv 120mva Power Transformer with on Load Tap Changer

FOB Price: US $10,000-400,000 / Piece
Min. Order: 1 Piece
Min. Order FOB Price
1 Piece US $10,000-400,000/ Piece
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Port: Shanghai, China
Production Capacity: 1set/6monthes
Payment Terms: L/C, T/T, D/P, Western Union

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Basic Info
  • Model NO.: SFPS8-X-120000/220
  • Phase: Three
  • Cooling Method: Oil-immersed Type Transformer
  • Certification: ISO9001-2000, UL, ISO9001, CCC
  • Frequency Characteristics: High Frequency
  • Brand: Ville
  • Voltage Range Hv: 220 +-2X2.5% 242+-2X2.5% Kv
  • LV: 6.3/3.3/10.2/11/35/37/38.5kv/60kv
  • Tap Changer: Mr or Hm China
  • Transport Package: Wooden Cases and Main Body Nude Packing
  • Origin: China
  • Application: Power, Electronic, Industrial Company
  • Core: Core-type Transformer
  • Winding Type: Two-winding Transformer
  • Usage: Combined Transformer, Power Transformer, Three Phase
  • Shape of Core: Ring
  • Test Certification: Kema Transformer Test
  • Mv: 69 115 121 Kv
  • Rated Popower Definitionwer: 120000kVA
  • Trademark: vilLE
  • Specification: IEC Standard
  • HS Code: 8504231200
Product Description

220kv 120mva Power Transformer with on Load Tap Changer

Transformer specification :
220kv 120mva Power Transformer with on Load Tap Changer

1,Iron core
1. The iron core adopts cold-rolled crystal-oriented silicon steel plate 30Z140 with high quality, low-loss, and no time effect, sheared by Geroge line and with no burr. 1.2 Iron core adopts pulling board structure, the upper and down yoke is clamped by board, to form the frame structure. The iron core adopts advanced lamination process, which effectively controls the no-load loss and electro-magnetic noise.
2 Winding
2.1 Winding adopts mature structure, which ensure the reliability of transformer operation.
2.2 The insulation power field intensity between turns shall be controlled no greater than 1.6kV/mm.
3.1 Body adopts mature insulation structure, and strictly guarantee the main axial insulation margin.
3.2 Body mostly adopt multi-coil whole assembly, processed in constant voltage and evaporation, which made coil shrink evenly and with less rebounce, and enhance the electric strength and mechanical strength.
3.3 Adopt laminating wood board or thermal shaped insulation cardboard. Pressed tightly with pin, which ensure the winding is constantly pressed tightly. 
4,leading wire
4.1 The layout of all leading wire is reasonable, which guarantees the enough electric distance and mechanical strenth. 
4.2 All leading wire is cirlulized ,which guarantee the reliable wild or prize connection. 
5.2 Pipeline with gas relay such as the oil tube and bushing hoist support on top of oil tank is with hoist gradient, to facilitate the gas in transformer flow to gas relay.
5.3 Vacuum oiling is adopted, there is no leakage and permanent distortion in the following test. vacuum-pumping :759mmHg load voltage test: bear 2 times the oil pressure of oil conservator oil surface for 24 hours.
5.4 The structure of transformer is convenient for disassembly and change of bushing and porcelain element.
5.5 The oil drip valve is set on the bottom of oil tank, sampling valve is set in the middle.
5.6 collective gas connecting tube is fixed on the bushing hoist support.
5.7 Transformer is of full-sealed structure, the upper and down oil tanks are required to welded fully.
6,Oil conservation tank
6.1 Adopt capsule type, finger type oil level indicator oil conservation tank.
6.2 The structure is convenient for internal cleaning, the capacity can ensure no oil overflow in 40 ambient temperature with full load, and oil shall be seen from oil level indicator before put into operation in 25
6.3 Oil conservation tank is equipped with oil-sealed moisture absorber.
7,Safety protection device:
7.1 Gas relay is fixed in transformer, the standard complies with ZBK41004-89Gas relay.
7.2 There is enough and reliable pressure release device, and matched with oil spray pipe, the direction of oil spraying is downward.
8 Oil temperature measuring device:
8.1 There is pipe support of mercury thermometer, which is set on the top of oil tank.

220kV Combined Power Transformer(Two-Winding)
Voltage: 220+ - 2x2.5%/121/37
Connection group: YNd11
Winding combination: H--L
No-load current(%): 0.5
No-load loss(kW): 53
On-load loss(kW): 226
lmpedance(%): 13.32
Weight of active part(kg): 3 28290
Transport weight(kg): 3 35000 (filling with nitrogen)
Transport dimension (L W H mm): 3300x2480x2950
Capacity: 120000kVA

SFPS8-X-120000/220 MVA 120/120/60


Cooling method



WindingConnection OLTC PositionVoltage

(kV)Current A


(ONAN)Current A






HVStar 1207529.9892.5




TertiaryDelta 920685.51155
7. Vector Group YN d11


8. Impedance Voltage in Percent at 75
Power MVAwindingRated voltage kVImpedance voltage %

9. No-load Current: 0.2%:


10. Sustained Short Circuit Current.
WindingMax. Sustained Short-circuit Current. Ka









11. Max. Duration of Short-circuits in Seconds(s)
HV: 3s




LV: 3 s




TV: 3s




Vector Group YND11 
No-load losses 80kw 
Load losses  383kw 
No load current % 0.2
Short-circuit impedance% HV-LV 12-14 

220kv 120mva Power Transformer with on Load Tap Changer

220kv 120mva Power Transformer with on Load Tap Changer

220kv 120mva Power Transformer with on Load Tap Changer

Packing and Shipping 
220kv 120mva Power Transformer with on Load Tap Changer

Service Guarantee
  1. To provide all technical information and drawings as per contract promptly. VILLE is obliged to invite client, if necessary, to attend technical design review.
  2. To carry out spot technical service as per client's schedule, offer guideness for installation and commissioning according to technical information and drawings.
  3. For relevant auxiliary equipment procured by customers, VILLE will provide relate technical information to meet requirement of equipment interface.
  4. To execute stipulations in MOU or agreement signed by seller and buyer strictly.
  5. To train staff from client for equipment installation, commissioning, application, maintenance as stipulated in the contract.
  6. To reinforce pre-sales, mid-sales, after-sales service, to carry out "24-hour service", "service in advance", "overall process service", "lifelong service" in our manufacturing, installation, commissioning and maintance.
  7. To meet spare parts' requirement by customers at anytime.
Order Instructions
When you choose our company product, please offer following data:
Transformer model:                     
Rated capacity:                 kVA
Phase       :  Three-phase
  • Single-phase
Frequency   :     50HZ
  •  60HZ
Rated voltage ( H.V. / L.V. ):                
Tapping range: ±       ×       %
Insulation level: LI       AC       / LI       AC        kv
Veotor group:  Dyn11
Short-circuit Impedance:        %
Cooling method:  ONAN
Tapping method:  OLTC
Other requirement:                                            
  1. We also can design special products according to customer's particular requirements.
The final dimension is subject to outline drawing.
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