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S11 type 10kV non-excitation voltage regulating distribution transformer
The power transmission and distribution system transfers the electric energy from the remote power plant to the user through regulation. The electric energy is transmitted through the high-voltage transmission line, and then can be suitable for the user after the voltage is reduced in several levels of substations. The distribution transformer located near the final power user will eventually reduce the voltage to the appropriate value. The transformer that reduces the voltage to the working voltage of electrical equipment is called distribution transformer. This type of transformer is used for daily lighting and factory power. Generally, the low voltage is 0.4kV and below. The capacity of distribution transformer is small, generally 2500 kVA and below, and the primary voltage is also low, all of which are 35 kV and below.
Working conditions
High temperature+40 ℃
Average temperature in hot month+30 ℃
Hot annual average temperature+20 ℃
Low temperature - 25 ℃
The altitude does not exceed 1000m
No obvious pollution in the installation environment
Outdoor installation
Executive standards
GB1094.1-2013 Power Transformers Part 1 General
GB1094.2-2013 Power Transformers - Part 2: Temperature Rise
GB1094.3-2003 Power Transformers - Part 3: Insulation Level, Insulation Test and External Insulation Air Gap
GB1094.5-2003 Power Transformers - Part 5: Ability to withstand short circuit
GB/T6451-2008 Technical Parameters and Requirements for Oil-immersed Power Transformers
Overall Dimension and Technical Data
Rated Capacity（KVA） | Voltage Combination | Connection | No-load current (%) | No-Load Loss (W) | Load Loss (W) | Short-circuit Impedence(%) | ||
High Voltage (kV) | Tapping Range | Low Voltage (kV) | ||||||
30 | 6 6.3 10 10.5 11 | ±5% or ±2×2.5% | 0.4 | Yyn0 or Dyn11 | 0.35 | 80 | 630/600 | 4 |
50 | 0.3 | 100 | 910/870 | |||||
63 | 0.25 | 110 | 1090/1040 | |||||
80 | 0.24 | 130 | 1310/1250 | |||||
100 | 0.22 | 150 | 1580/1500 | |||||
125 | 0.21 | 170 | 1890/1800 | |||||
160 | 0.2 | 200 | 2310/2200 | |||||
200 | 0.19 | 240 | 2730/2600 | |||||
250 | 0.18 | 290 | 3200/3050 | |||||
315 | 0.17 | 340 | 3830/3650 | |||||
400 | 0.16 | 410 | 4520/4300 | |||||
500 | 0.16 | 480 | 5410/5150 | |||||
630 | 0.15 | 570 | 6200 | 4.5 | ||||
800 | 0.15 | 700 | 7500 | |||||
1000 | 0.14 | 830 | 10300 | |||||
1250 | 0.14 | 970 | 12000 | |||||
1600 | 0.12 | 1170 | 14500 | |||||
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