220kv 6300kVA-240000kVA Power Transformers 100mva Oil Immersed Transformer

• Customization: Available
• Application: Power, Electronic, Instrument, Lighting, Rectifier, Audio
• Phase: Three
• Model NO.: S
• Usage: Power Transformer
• Frequency Characteristics: Power Frequency
• Shape of Core: Ring
• Application Field: Power Grid
• Capacity: 110mva
• Currency: RMB or USD
• Customization: Acceptable
• Delivery Time: Depend on The Quantity
• Transportation: by Truck or by Sea
• Loading Port: It Depends
• Delivery Term: Fob,CIF,EXW,DAP
• Language: English,Chinese,Russian
• Rated Primary Voltage: 220kv or Others
• Transport Package: Wooden Case
• Specification: As per design
• Trademark: HZEC
• Origin: China
• Production Capacity: 250 Sets/ Quarter

Product Description

Henan Energy Electric Equipment Co., Ltd. was established in 2011 and is an excellent and reliable transformer manufacturer in China. The company mainly develops and produces oil-immersed transformers, dry-type transformers, box-type substations and high and low voltage complete sets of equipment.The equipment put into production and operation of the project advocates energy saving, intelligence, information and mechanization. The company has established the Henan Triangle Energy-saving Transformer Engineering Technology Research Center,with 71 utility model patents and 15 invention patents.With years of accumulation in the transformer industry and strong technological innovation capabilities, HZEC Products are sold to the Middle East, North America, South America, Europe, Southeast Asia, Africa and other regions, covering more than 40 countries.



The 220kV transformer is a high-voltage oil-immersed transformer with a core-type structure. It can be classified by phase number into single-phase transformers and three-phase transformers; by voltage regulation method into on-load tap-changing transformers and no-load tap-changing transformers; by winding coupling method into power transformers and autotransformers; by the number of windings into double-winding, three-winding, and three-winding plus balance winding transformers. Additionally, it includes special types such as split transformers and combined transformers. The product is designed according to IEC international standards, IEEE standards, and current national standards.

Low Noise: Reduces noise pollution to the environment.
Low Partial Discharge: Ensures stable and reliable transformer operation.
Low Temperature Rise: Provides strong overload capacity.
Low Loss: Optimizes energy structure.
Leakage-Free: Ensures high sealing performance of the transformer.
Maintenance-Free: Reduces customer maintenance costs.
High Impedance: Offers high short-circuit resistance, providing transformer safety.
Smart Components: Incorporates intelligent substation design technology.

Main Technical Parameters for Oil-immersed Power Transformer
Rated Power(kVA)	High Voltage(kV)	H.V.Tap range	Low Voltage(kV)	Connection symbol	Short Circuit Impedance	No-load loss(kW)	On-load loss(kW)	No-load current(%)
6300	63 66 69 110 132 138 220 or others	±8x1.25% or others	6.3 6.6 10.5 11 33 69 or others	YNd11 YNyn0 or others	10-14	9.4	34	0.63
8000						11.2	40.4	0.63
10000						13.1	47.6	0.75
12500						15.4	56.5	0.53
16000						18.5	69.5	0.49
20000						21.8	84.2	0.49
25000						25.6	99.5	0.4
31500						30.4	120	0.4
40000						36.2	140.3	0.39
50000						42.6	174.3	0.39
63000						52	210	0.39
75000						60	238	0.49
90000						69	274	0.49
120000						85	328	0.46
150000						101	385	0.42
160000						105	404	0.42
180000						115	436	0.42
240000						144	539	0.4

Notes:1. All the data provided are just examples for reference only, for more precise specific parameters, please contact us to obtain the latest version.
           2. More-efficient and reliable transformers are custom designed or manufactured per customer specifications.
1. Device Types: outdoor type
2. Type of Voltage Regulation: Off-circuit or On-load
3. Tapping Range: ±5%, ±2x2.5%, ±4x2.5%
4. Frequency: 50Hz or 60 Hz
5. Phase: Single or three
6. Connection Symbol: Dny 11, Yyno (or as requested)
7. Short-circuit Impedance: Standard Impedance
8. Altitude is not exceeding 1000m, ambient temperature is not exceeding 40ºC. If it can't meet such conditions, we will modulate parameters in accordance with standard.