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ST11-M 10kv/20kv combined off-load transformers |
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Introduction
- The capacity of ST11-M transformers could be adjusted, the ratio of low/high capacity is 1:3, by adjusting the capacity of the transformer during low-load period, the loss could be reduced, the products are used mainly for rural application where the load fluctuates one season to another. It complies the energy-saving policy, and thus could be used in various industries.
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Features
- Core made of high quality cold-rolled silicon steel. 45 degree Step-lapped core structure , thereby reducing the no-load loss and no-load current.
- High quality oxygen-free copper winding for both high and low voltage sides, high-voltage in the automatic winding machine low-voltage windings with wire (foil) type winding structure.
- New type of insulation, Strong short circuit withstand capability .
- Secure, reliable, easy-installation new type switch applied.
- High-quality corrugated tank with modern folding technology, compact airtight preventing early oil aging.
SELECTION CHART
10KV PRIMARY,400V~1000V SECONDARY
型号
Type |
容量
Capacity
(kVA) |
电压组合(HV/LV) |
联结组
标号
Connection |
空载损耗
No-Load
loss(w) |
负载损耗
Load
loss(w) |
空载电流
No-Load
Current(%) |
短路阻抗
Impedance
Voltage(%) |
轨距
Gauge
(mm) |
高压
HV(kV) |
分接范围
(%) |
低压
LV(kV) |
ST11-M-160/10 |
160/50 |
6
6.3
6.6
10
10.5
11 |
±5%
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0.4 |
Yyn0
Dyn11 |
290/130 |
2200/870 |
1.4 |
4.0 |
550*550 |
ST11-M-200/10 |
200/63 |
330/150 |
2600/1040 |
1.3 |
550*550 |
ST11-M-250/10 |
250/80 |
400/180 |
3050/1250 |
1.2 |
550*550 |
ST11-M-315/10 |
315/100 |
480/200 |
3650/1500 |
1.1 |
550*550 |
ST11-M-400/10 |
400/125 |
570/240 |
4300/1800 |
1.0 |
660*660 |
ST11-M-500/10 |
500/160 |
680/290 |
5100/2200 |
1.0 |
660*660 |
ST11-M-630/10 |
630/200 |
810/330 |
6200/2600 |
0.9 |
4.5 |
820*820 |
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