Henan New Electric Power Co.,ltd.
| Type of cooling | ONAN oil is self-cooled |
| Customization | Voltage, Capacity, Current, IP Rating, Color, OEM Logo |
| Delivery Time | 7-14 work days |
| Application | Substation |
| Phase | Three |
| Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Rated Voltage | 11kV / 13.8kV / 24kV / 33kV / 34.5kV |
| Ambient Temperature | -25°C to +55°C |
| Rated frequency | 50Hz/60Hz |
| Standards | IEC 60076 / IEC 62271 / IEC 61439 |
| Supply Ability | 5000pcs/year |
| Capacity/KVA | 25kVA–5000kVA |
| Protection Degree | IP54 / IP65 |
| Cooling / Insulation | ONAN / Air Insulated |
| Packaging Details | Export standard packaging |
| Model Number | S11/S13/S20 |
| Certification | CE,UL,ISO |
| Place of Origin | Henan, China |
| Brand Name | TNNPI |
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Product Specification
| Type of cooling | ONAN oil is self-cooled | Customization | Voltage, Capacity, Current, IP Rating, Color, OEM Logo |
| Delivery Time | 7-14 work days | Application | Substation |
| Phase | Three | Payment Terms | L/C,D/A,D/P,T/T,Western Union |
| Rated Voltage | 11kV / 13.8kV / 24kV / 33kV / 34.5kV | Ambient Temperature | -25°C to +55°C |
| Rated frequency | 50Hz/60Hz | Standards | IEC 60076 / IEC 62271 / IEC 61439 |
| Supply Ability | 5000pcs/year | Capacity/KVA | 25kVA–5000kVA |
| Protection Degree | IP54 / IP65 | Cooling / Insulation | ONAN / Air Insulated |
| Packaging Details | Export standard packaging | Model Number | S11/S13/S20 |
| Certification | CE,UL,ISO | Place of Origin | Henan, China |
| Brand Name | TNNPI |
Product Function
The 12 Pulse Rectifier Oil Immersed Transformer is specially designed for high-power rectifier systems that require stable and reliable AC power supply. Its phase-shifting configuration supports 12-pulse rectification, helping reduce harmonic distortion and improve DC output quality. It is widely used in electrolysis, electroplating, metallurgy, mining, chemical processing and other industrial DC power applications.
Manufacturing & Material Features
General Technical Parameters
| Parameter | Typical Specification |
|---|---|
| Transformer Type | 12 Pulse Rectifier Oil Immersed Transformer |
| Phase | Three Phase |
| Rated Capacity | 500 kVA–10 MVA+ |
| Primary Voltage | 3.3 kV / 6 kV / 10 kV / 11 kV / 13.8 kV / 20 kV / 33 kV |
| Secondary Voltage | Customized according to rectifier system |
| Frequency | 50 Hz / 60 Hz |
| Cooling Method | ONAN / ONAF |
| Standard | IEC 60076 |
FAQ
Q1: What is a 12 pulse rectifier transformer used for?
It is mainly used to supply power to 12-pulse rectifier systems in high-power DC applications such as electrolysis, electroplating, mining and metallurgy.
Q2: Can the primary and secondary voltage be customized?
Yes. Primary voltage, secondary voltage, capacity, impedance and phase-shifting configuration can be customized according to the rectifier system.
Q3: What cooling method is available?
ONAN is commonly used, while ONAF cooling can be provided for higher-capacity or higher-load applications.
Q4: Can the transformer be designed for different rectifier configurations?
Yes. The winding and phase-shifting design can be engineered according to the customer's rectifier topology and DC output requirements.
Q5: Which standard does the transformer comply with?
The transformer can be manufactured according to IEC 60076 and other applicable customer or project standards.
Company Details
Business Type:
Manufacturer,Distributor/Wholesaler,Seller,Exporter
Year Established:
2017
Total Annual:
>30000+
Employee Number:
260~300
Ecer Certification：
Verified Supplier
Henan New Electric Power Co., Ltd. is more than just a manufacturer; we are your strategic partner in building resilient and efficient power distribution networks. With a dual-core manufacturing capability in High/Medium Voltage Power Transformers and Advanced Switchgear Systems,... Henan New Electric Power Co., Ltd. is more than just a manufacturer; we are your strategic partner in building resilient and efficient power distribution networks. With a dual-core manufacturing capability in High/Medium Voltage Power Transformers and Advanced Switchgear Systems,...
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