1. Overview
This series of on-load tap changers is designed for three-phase or single-phase oil-immersed on-load voltage-regulating transformers of voltage class 10 kV, rated current in the 100 to 300 A range and frequency 50 to 60 Hz.
2. Technical data
| Max. rated through-current Ir (A) |
100~300 |
| Number of phases |
Single-phase/three-phase |
| Rated frequency (Hz) |
50 |
| Rated short-time current (kA) |
Thermal stabilization (3s) |
2 |
| Dynamic stabilization (peak) |
5 |
| Rated step voltage (V) |
300 |
| Max. operating positions |
9 |
| Rated voltage (kV) |
10 |
| Max. operating voltage (kV) |
11.5 |
| Applicable transformer connections |
Y |
△ |
| Insulation test voltage 1min (kV) |
To ground |
35 |
| Phase to phase |
18 |
35 |
| First, End |
18 |
| Impulse |
75 |
| Wight(kg) |
40 |
| Matching Controller |
Model specifications are shown in the randomized annex |
3. Dimensional illustration
FAQ
1. Q: What are your main products?
A: The company has specialized in producing on-load tap changers for more than 40 years, with products covering power transformers, furnace transformers, special transformers, and other industries.
2. Q: Are you a manufacturer?
A: Yes. Our company is a professional manufacturer of on-load tap-changers, with its own factory and production line, covering an area of 20,000 square meters, with over 100 employees, and nearly 100,000 units of products currently operating in the network. We also provide OEM and ODM services.
3. Q: How do you control the quality of your products?
A: We have a complete quality control system for each production process. After the production, all goods will be tested according to the relevant standards, and the factory inspection report will be sent with the shipping documents.
4. Q: What's your payment terms?
A: We usually accept all kinds of payment terms, T/T, L/C, etc.
5. Q: What are your products packaged for transportation?
A: We ship in composite wood crates.
6. Q: What kind of credentials do you have?
A: Quality management system certificate, High-tech enterprise certificate, etc.
7. Q: Can I come to visit your factory?
A: Of course, you are very welcome to visit our factory.
Audited Supplier 
Audited Supplier 
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