SZ13 Series On-Load Tap Changer and Voltage Regulating Transformer
Category:
Product Description
Product Overview
The SZ13 series on-load tap-changing voltage and capacity regulating transformers are suitable for applications where seasonal load variations occur. When the load is light (or no load), the transformer can be switched to a lower tap, reducing its capacity and thereby minimizing core losses. These transformers are ideal for users in rural areas, forestry operations, salt farms, and other locations where electricity consumption fluctuates significantly and the cycles of change are relatively long. Since being put into operation, they have performed well and have successfully achieved the intended goals of high reliability, substantial energy savings, convenient operation, and low manufacturing costs.
Product Model and Meaning
Terms of Use
1. Altitude ≤ 1000 m;
2. Ambient air temperature: -25°C to +45°C, with an average temperature of ≤+30°C during the hottest month.
3. Environmental Humidity: Monthly average relative humidity ≤ 90%; daily average relative humidity ≤ 95%.
4. Pollution Level: Class III.
Main Features
1. The controller automatically shifts gears based on load size, eliminating the need for manual operation.
2. When a load‑regulated transformer is switched from a high capacity to a low capacity, the increased number of turns on the low‑voltage side reduces the magnetic flux density in the core, thereby decreasing the specific loss of the silicon steel laminations and lowering no‑load losses and no‑load current, which in turn helps reduce losses and save energy.
3. When a load‑regulated transformer is switched from a high capacity to a low capacity, the conductor cross‑section increases, the resistance decreases, and the load losses can be reduced by approximately 60%.
Main Technical Parameters
Performance Parameters of SZ13 On-Load Tap Changer and Voltage Regulation Transformer
|
Capacity |
Voltage Ratio and Tap Range |
Connection Group |
No-load loss |
No-load current |
Load loss |
Impedance Voltage |
||
|
High Voltage (kV) |
High-voltage tap range |
Low Voltage (kV) |
(W) |
(%) |
(W) |
(%) |
||
|
100(30) |
6 6.3 10 10.5 11 |
± 2 × 2.5% ± 5% |
0.4 |
Dyn11 Yyn0 |
150(80) |
1.1(1.5) |
1580(600) |
4 |
|
125(50) |
170(100) |
1.1(1.3) |
1890(870) |
|||||
|
160(50) |
200(100) |
1(1.3) |
2310(870) |
|||||
|
200(63) |
240(110) |
1(1.2) |
2730(1040) |
|||||
|
250(80) |
290(130) |
0.9(1.2) |
3200(1250) |
|||||
|
315(100) |
340(150) |
0.9(1.1) |
3830(1500) |
|||||
|
400(125) |
410(170) |
0.8(1.1) |
4520(1800) |
|||||
|
500(160) |
480(200) |
0.8(1) |
5410(2200) |
|||||
|
630(200) |
570(240) |
0.6(1) |
6200(2600) |
4.5 |
||||
Ordering Instructions
1. Product model, voltage level, tap range, and connection group;
2. Order quantity and installation altitude;
3. Special requirements from users regarding electrical appliances, such as the color and material of the enclosure, installation method, and protection rating.
Keywords:
SZ13 Series On-Load Tap Changer and Voltage Regulating Transformer
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East of the 22nd Avenue and south of Fengda Road, Zhengzhou Economic and Technological Development Zone
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