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S13 High Overload Capacity Distribution Transformer
The S13 High Overload Distribution Transformer is a kind of distribution transformer researched and developed to solve short-term rapid growth of power load. It mainly meets power requirements for rural public 10kV high load capacity power distribution in the operation area of State Grid Corporation, which effectively solves overload and burnout of the distribution transformer during festivals and busy farming season, guarantees safety and reliable power supply in the rural area, and meanwhile guarantees operation economy of the rural distribution transformer.
Model Description:
Technical Parameters:
Rated
Capacity (KVA)
Voltage Combination and Tapping Range
Connection
Group Grade
Idle
Load
Loss (W)
Load Loss (W)
No-Load
Current (%)
Short-circuit
Impedance (%)
High-voltage (KV)
High-voltage
Tapping Scope (%)
Low-voltage (KV)
50
10 10.5 11
±5
±2×2.50.4
Dyn11/Yyn0
130
910/870
0.8
4
100
200
1580/1500
0.7
200
340
2730/2600
0.6
Note: the load loss above the slash in the table is only applicable for Dyn11 connection group, and the load loss value below the slash is applicable for Yyn0 connection group.
1. The high overload transformer has a high tolerance in high load resistance and transformer burnout due to overload. It can continuously run for over 6 hours at 1.5 times of the rated load, over 3 hours at 1.75 times of the rated load as well as over 1 hour at 2 times of the rated load. It can effectively solve the transformer burnout problem caused by short-time high overload.
2. The fully-sealed ripple structure is adopted for the oil tank, and the expansion coefficient is not less than 1.3, so as to guarantee no oil seepage or leakage at the specified working conditions and overload conditions.
Rated
Capacity KVA
Weight Kg
Dimensions (mm) L × W × H
Gauge mm
Body Lifting
Weight
Total Weight
50
200
550
1200×750×1150
400×400
100
350
760
1250×800×1200
400×450
200
595
1040
1350×850×1300
550×550
1.Specially target to occasions such as low annual average load ratio in the rural area, short-term substantial growth of load during festivals, and busy farming season. Under the premise of guaranteeing basic power capacity, it meets the demand of both long-term power usage for small load and short-term power usage with overload.
2. The distribution transformer with high overload capacity has the features of energy saving, high efficiency, environmental protection, small no-load current, low reactive loss, strong resistance to short circuit and more.
1. Maximum temperature: +40℃/+104ºF;
2. Maximum daily average temperature: +30℃/+86ºF;
3. Maximum annual average temperature: +20℃/+68ºF;
4. Minimum temperature: -45℃/-49ºF;
5. Elevation shall not exceed 1000m;
6. Indoor or outdoor use.
Note: please make specific instructions in case of any special use conditions.
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