Audited Supplier
The mechanical and electrical components required to operate the on-load tap changer are installed in the motor drive unit and electrical interlocking circuits are used.
Generally, the motor-drive unit is supplied as an accessory to the on-load tap changer unit as a complete set.
| Serial No. | Classification features | Data | |
| 1 | Motor parameters | Rated power(W) | 370 |
| 2 | Rated voltage(V) | 380(three-phase) | |
| 3 | Rated current(A) | 1.1 | |
| 4 | Rated frequency(Hz) | 50 | |
| 5 | Rotate speed(r.p.m.) | 1400 | |
| 6 | Output shaft drive torque, N.m. | 45 | |
| 7 | Tap-change output shaft revolutions per stage | 2 | |
| 8 | Tap-change handle revolutions per stage | 30 | |
| 9 | Tap-change operation time per stage(s) | 4.5 | |
| 10 | Control circuit and heater voltage(V) | 220 | |
| 11 | Control loop excitation power(VA) | At the start of the operation | 52 |
| 12 | During the operation | 16 | |
| 13 | Heater power(W) | 150 | |
| 14* | Control circuit frequency withstand voltage(kV/1min) | 2.5 | |
| 15 | Motor-drive unit case protection class | IP54 | |
| 16 | Mechanism life(million cycles) | 50 | |
| 17 | Weight(kg) | 75 | |
1. Q: What are your main products?
A: For over four decades, our company has specialized in developing and producing on-load tap changers. Our extensive product range caters to power transformers, furnace transformers, specialized transformers, and various other industries.
2. Q: Are you a manufacturer?
A: Yes. Wukai Electric (Jiangsu) Co., Ltd. proudly is a leading on-load tap changer manufacturer. With a state-of-the-art factory spanning 20,000 square meters and a dedicated workforce of over 100 employees, our production line has delivered nearly 100,000 units currently operational in networks worldwide. Additionally, we offer comprehensive OEM and ODM services to meet diverse customer needs.
3. Q: How do you control the quality of your products?
A: We implement a stringent quality control system throughout every stage of the production process. Upon completion, each product undergoes thorough testing by relevant standards. A detailed factory inspection report accompanies all shipping documents, ensuring transparency and reliability.
4. Q: What's your payment terms?
A: We are flexible and accept various payment terms such as T/T, L/C, and more.
5. Q: What are your products packaged for transportation?
A: Our products are securely packaged in robust composite wood crates to ensure safe transportation.
6. Q: What kind of credentials do you have?
A: We hold several prestigious credentials including a Quality Management System Certificate and a High-tech Enterprise Certificate, among others.
7. Q: Can I come to visit your factory?
A: Absolutely! We warmly welcome you to visit our factory and witness our operations firsthand.
