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Amorphous Alloy Distribution Transformer Suppliers and Factory in China - Low Loss, High Efficiency Solutions
Product Features
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Standards: GB/T10228-1997, GB6450-1986, JB/T10088-2004, GB4208-1993
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Rated high voltage: 10 (11, 10.5, 6.6, 6.3, 6)kV
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Rated low pressure: 0.4kV
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Connection group: Dynl1orYY
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High voltage tapping range: ±5% or ±2×2.5%
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Insulation level: LI75AC35/LI OAG5
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Frequency: 50Hz
Model Meaning
Product Performance Parameters
| Rated capacity | Voltage combination (kV) | Link group label | No-load loss | Load loss | No-load current | Impedance voltage | ||
|---|---|---|---|---|---|---|---|---|
| high pressure | High pressure decomposition range(%) | Low pressure | ||||||
| 30 | 6 6.3 6.6 10 10.5 11 |
±2×2.5 ±5 |
0.4 | Dyn11 Yyn0 |
33 | 630/600 | 1.5 | 4 |
| 50 | 43 | 910/870 | 1.2 | |||||
| 63 | 50 | 1090/1040 | 1.1 | |||||
| 80 | 60 | 1310/1250 | 1 | |||||
| 100 | 75 | 1580/1500 | 0.9 | |||||
| 125 | 85 | 1890/1800 | 0.8 | |||||
| 160 | 100 | 2310/2200 | 0.6 | |||||
| 200 | 120 | 2730/2600 | 0.6 | |||||
| 250 | 140 | 3200/3050 | 0.6 | |||||
| 315 | 170 | 3830/3850 | 0.5 | |||||
| 400 | 200 | 4520/4300 | 0.5 | |||||
| 500 | 240 | 5410/5150 | 0.5 | |||||
| 630 | 320 | 6200 | 0.3 | 4.5 | ||||
| 800 | 380 | 7500 | 0.3 | |||||
| 1000 | 450 | 10300 | 0.3 | |||||
| 1250 | 530 | 12000 | 0.2 | |||||
| 1600 | 630 | 14500 | 0.2 | |||||
| 2000 | 750 | 18300 | 0.2 | 5 | ||||
| 2500 | 21200 | 0.2 | 5 | |||||
⚠️ Notes:
Due to continuous product updates, the parameters in the table may change. Please refer to the parameters provided when ordering.
Note 1: When the core is a three-phase column, a Yyn0 connection group can also be used as needed.
Note 2: For three-phase transformers with a rated capacity of 500kVA and below, the load loss values above the slash in the table are applicable to the Dyn11 connection group, and the load loss values below the slash are applicable to the Yyn0 connection group.
Note 3: Other loss values may be selected if required by the user.
Note 4: Three-phase transformers with other high voltage tapping ranges can be provided according to user needs.
Product Performance Parameters (Continued)
| Rated capacity | Voltage combination (kV) | Link group label | No-load loss | Load loss | No-load current | Impedance voltage | ||
|---|---|---|---|---|---|---|---|---|
| high pressure | High pressure decomposition range(%) | Low pressure | ||||||
| 30 | 20 | ±2×2.5 ±5 |
0.4 | Dyn11 | 40 | 690/660 | 1.5 | 5.5 |
| 50 | 55 | 1010/960 | 1.2 | |||||
| 63 | 65 | 1200/1150 | 1.1 | |||||
| 80 | 75 | 1440/1370 | 1 | |||||
| 100 | 90 | 1720/1650 | 0.9 | |||||
| 125 | 100 | 2080/1980 | 0.8 | |||||
| 160 | 120 | 2540/2420 | 0.6 | |||||
| 200 | 145 | 3000/2860 | 0.6 | |||||
| 250 | 165 | 3520/3350 | 0.6 | |||||
| 315 | 200 | 4210/4010 | 0.5 | |||||
| 400 | 240 | 4970/4730 | 0.5 | |||||
| 500 | 290 | 5940/5560 | 0.5 | |||||
| 630 | 370 | 6820/8250 | 0.3 | 6 | ||||
| 800 | 450 | 11330 | 0.3 | |||||
| 1000 | 530 | 13200 | 0.3 | |||||
| 1250 | 620 | 15950 | 0.2 | |||||
| 1600 | 750 | 19140 | 0.2 | |||||
| 2000 | 900 | 22220 | 0.2 | |||||
| 2500 | 1080 | 21200 | 0.2 | |||||
⚠️ Notes:
Note 1: When the core is three-phase and three-column, it can also be used as needed.Yyn0Connection group.
Note 2: For rated capacity of 500kv For transformers below 1000A, the load loss values above the slash in the table apply to Dyn11The load loss values below the slash apply to the connected groupYyn0 Connection group.
Note 3: Other loss values may be selected if required by the user.
Note 4: Transformers with other high voltage tapping ranges can be provided according to user needs.
Note 5: The performance parameters in the table are also applicable to high voltage dual voltage 20 (10)kVTransformer
Note 6: Due to continuous product updates, the parameters in the table may change. Please refer to the parameters provided when ordering.
Products Meet Standards
✓
GB 1094.1-1996 Power transformers Part 1 General
✓
GB1094.2-1996 Temperature rise of the second part of power transformer
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GB1094.3-2003 Power transformers - Part 3 Insulation levels, insulation tests and external insulation air gaps
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GB1094.5-2008 Power transformer part 5 short circuit capability
✓
GB/T25446-2010 Technical parameters and requirements of oil-immersed amorphous alloy core distribution transformers
✓
GB311.1-1997 Insulation coordination of high voltage power transmission and transformation equipment
✓
IEC 60076 Power Transformer
✓
ANSI/C57.12.00 General technical requirements for oil-immersed distribution, power and voltage regulating transformers
Frequently Asked Questions (FAQ)
Which standards do these transformers comply with?
These transformers comply with major national and international standards, including GB 1094 (Parts 1, 2, 3, and 5), GB/T25446-2010, GB311.1-1997, IEC 60076, and ANSI/C57.12.00.
What are the rated high voltage options available for these transformers?
The rated high voltage can be configured for 10 (11, 10.5, 6.6, 6.3, 6) kV, as well as 20 kV (applicable to high voltage dual voltage 20 (10) kV transformers). Other high voltage tapping ranges can also be provided according to user needs.
What connection groups (link groups) are supported?
Standard connection groups include Dyn11 and Yyn0. For three-phase transformers with a rated capacity of 500kVA and below, the load loss values apply differently depending on the connection group (Dyn11 or Yyn0).
What is the standard insulation level and frequency?
The insulation level is LI75AC35/LI OAG5, and the rated operating frequency is 50Hz.
Can the high voltage tapping ranges be customized?
Yes, three-phase transformers with alternative high voltage tapping ranges (standard options include ±5% or ±2×2.5%) can be supplied based on specific user requirements.
Why might the parameters in the tables vary slightly from my actual order?
Due to continuous product updates and improvements, technical parameters may change over time. Please always refer to the specific parameters provided at the time of ordering.

