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China Amorphous Alloy Distribution Transformer - High-Efficiency Power Solution from Trusted Suppliers and Factory
Product Features
Standards: GB/T10228-1997, GB6450-1986, JB/T10088-2004, GB4208-1993
Rated High Voltage: 10 (11, 10.5, 6.6, 6.3, 6) kV
Rated Low Pressure: 0.4 kV
Connection Group: Dyn11 or Yyn0
High Voltage Tapping Range: ±5% or ±2×2.5%
Insulation Level: LI75AC35 / LI0AG5
Frequency: 50Hz
Model Meaning
Product Performance Parameters
| Rated Capacity (kVA) | Voltage Combination (kV) | Link Group Label | No-load Loss (W) | Load Loss (W) | No-load Current (%) | Impedance Voltage (%) | ||
|---|---|---|---|---|---|---|---|---|
| High Pressure | High Pressure Tap 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 | ||||
Note:
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 (kVA) | Voltage Combination (kV) | Link Group Label | No-load Loss (W) | Load Loss (W) | No-load Current (%) | Impedance Voltage (%) | ||
|---|---|---|---|---|---|---|---|---|
| High Pressure | High Pressure Tap 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 | |||||
Note 1:
When the core is three-phase and three-column, it can also be used as needed Yyn0 Connection group.
Note 2:
For rated capacity of 500kVA and below transformers, the load loss values above the slash in the table apply to Dyn11. The load loss values below the slash apply to the connected group Yyn0 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)kV Transformer.
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
GB 1094.2-1996 Temperature rise of the second part of power transformer
GB 1094.3-2003 Power transformers - Part 3 Insulation levels, insulation tests and external insulation air gaps
GB 1094.5-2008 Power transformer part 5 short circuit capability
GB/T25446-2010 Technical parameters and requirements of oil-immersed amorphous alloy core distribution transformers
GB 311.1-1997 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
Q1: Which standards do these distribution transformers comply with?
These transformers are designed and manufactured in strict compliance with Chinese national standards and international standards, including GB 1094 (Parts 1, 2, 3, 5), GB/T25446-2010, IEC 60076, and ANSI/C57.12.00.
Q2: What are the rated high voltage options available for these models?
The rated high voltage options include 6kV, 6.3kV, 6.6kV, 10kV, 10.5kV, 11kV, and 20kV, depending on the specific requirements of your power grid.
Q3: Can these transformers support both Dyn11 and Yyn0 connection groups?
Yes. The standard connection groups are Dyn11 or Yyn0. For three-phase transformers with a rated capacity of 500kVA and below, specific load loss values apply to each group as indicated in the product parameters.
Q4: Are custom high-voltage tapping ranges available?
Yes, we provide standard tapping ranges of ±5% or ±2×2.5%, and other customized high-voltage tapping ranges can be engineered according to the user's specific power demands.
Q5: What is the rated insulation level of these transformers?
The insulation level is rated at LI75AC35 / LI0AG5, ensuring excellent dielectric strength and reliability under operating conditions.
Q6: Are the performance parameters applicable to dual-voltage systems?
Yes, the performance parameters outlined in the technical specification tables are fully applicable to high voltage dual voltage 20 (10)kV transformers.

