The 220kV / 230kV Power Transformer is a high-voltage oil-immersed transformer designed for utility substations, transmission networks, large industrial facilities, renewable energy integration, and high-capacity power transmission projects. It provides reliable voltage transformation, efficient power transmission, and stable long-term operation under demanding grid conditions.
La 220kV / 230kV Power Transformer is a high-voltage oil-immersed transformer engineered for utility substations, transmission networks, power plants, renewable energy projects, and large industrial power systems. It is designed to provide reliable voltage transformation, efficient power transmission, and stable long-term operation under demanding grid conditions.
The transformer features an optimized magnetic circuit, reinforced winding structure, high-performance insulation system, and reliable cooling configuration to ensure electrical, mechanical, and thermal stability during continuous operation. Depending on project requirements, it can be equipped with an Changeur de prises en charge (OLTC) for precise voltage regulation and flexible grid operation.
Each transformer can be customized according to the required rated capacity, voltage ratio, frequency, impedance voltage, vector group, tap range, insulation level, cooling method, neutral configuration, and applicable international standards.
For large-scale substation and EPC projects, Zisheng provides project-oriented transformer solutions covering technical design, manufacturing, factory testing, export preparation, and delivery. Optional monitoring and protection systems can also be integrated to support reliable operation and condition monitoring throughout the transformer’s service life.
The 220kV / 230kV Power Transformer is suitable for high-voltage substations, transmission and distribution networks, power generation facilities, solar and wind power plants, mining projects, and large industrial electrical systems where high reliability, efficiency, and long service life are essential.
Zisheng sont un fabricant professionnel avec plus de 19 ans d'expérience dans la production Transformateurs immersés dans l'huile, Sous-station compacte, Transformateurs montés sur socle, Transformateurs montés sur poteau et Transformateurs à sec. Nous possédons les certificats de ISO/CE/IEC 60076 et TUV Rheinland.
Les transformateurs subissent des tests de FAT rigoureux et des essais de type, prenant en charge la personnalisation de la tension/capacité. Bienvenue pour consulter pour Catalogue et Produit. vous pouvez nous contacter par email [email protected].
A customized 220kV Power Transformer was supplied for a high-voltage grid substation project, providing reliable voltage transformation between the transmission network and the downstream power system.
The project required a high-capacity transformer capable of stable continuous operation under demanding grid conditions, with reliable insulation performance, efficient cooling, flexible voltage regulation, and comprehensive protection.
The project required the transformer to meet the following key requirements:
Zisheng developed the transformer configuration according to the project’s electrical and environmental requirements.
La solution comprenait :
220kV High-Voltage System
The high-voltage winding and insulation system were designed according to the specified voltage and insulation requirements of the substation.
On-Load Tap Changer
An OLTC system was configured to provide flexible voltage regulation and help maintain stable output voltage under varying grid conditions.
Optimized Cooling System
The cooling system was selected according to the transformer’s rated capacity and thermal requirements, with radiator and fan configurations customized for reliable continuous operation.
Reinforced Winding Structure
The winding and mechanical support system were designed to withstand electromagnetic forces generated during short-circuit conditions.
Comprehensive Protection
The transformer can be equipped with Buchholz relay, pressure relief device, oil and winding temperature indicators, oil level monitoring, and other protection components according to the project specification.
Optional Online Monitoring
For critical substations, online monitoring solutions such as dissolved gas analysis, bushing monitoring, and transformer condition monitoring can be integrated.
Before shipment, the transformer underwent factory inspection and testing according to the agreed technical specification and applicable standards.
The testing program can include:
Factory acceptance testing can also be arranged with customer representatives, EPC contractors, consultants, or third-party inspection agencies.
After successful factory testing, the transformer was prepared for international transportation with suitable export protection and project documentation.
The project supply can include:
The 220kV Power Transformer solution provides the substation with a reliable high-voltage transformation system designed for long-term grid operation.
Grâce à customized engineering, controlled manufacturing, factory testing, and project-oriented delivery, Zisheng supports EPC contractors, utilities, power developers, and industrial customers with high-voltage transformer solutions for demanding power infrastructure projects.
| Paramètre | Spécification technique |
|---|---|
| Type de Produit | Transformateur de puissance triphasé à huile |
| Application | Transmission Substation / Grid Substation / Power Plant / Industrial Project / Renewable Energy |
| Classe de tension nominale | 220kV / 230kV |
| Capacité nominale | Customized, typically according to project requirements |
| Phase | Trois phases |
| Fréquence nominale | 50Hz / 60Hz |
| Haute Tension | 220kV / 230kV |
| Tension moyenne | Personnalisé |
| Basse Tension | Personnalisé |
| Rapport de tension | Customized according to grid requirements |
| Courant nominal | Calculated according to rated capacity and voltage |
| Connection Group | Dyn11 / YNd11 / YNyn0 / Other customized |
| Neutral Point | Neutral grounded / Customized |
| Changeur de prise | OLTC / Changeur de prises hors circuit |
| Plage de prises | Customized, commonly ±8 × 1.25% or according to project requirements |
| Tap Positions | Personnalisé |
| Tap Changer Location | HV / MV winding, according to design |
| Méthode de refroidissement | ONAN / ONAF / OFAF / ODAF |
| Milieu isolant | Mineral Transformer Oil / Approved Insulating Fluid |
| Matériau du noyau | High-Quality Grain-Oriented Silicon Steel |
| Winding Conductor | High-Quality Copper / Aluminum |
| Winding Type | Disc / Helical / Layer Winding according to design |
| Insulation System | Système d'isolation huile-papier |
| HV Insulation Level | According to IEC / IEEE / GB requirements |
| Lightning Impulse Withstand | According to specified insulation level |
| Power-Frequency Withstand | According to applicable standard |
| Décharge Partielle | According to applicable project requirements |
| Tension d'Impedance | Customized according to system requirements |
| Pertes à vide | Optimized according to rated capacity and efficiency requirements |
| Perte en charge | Optimized according to project specification |
| Courant à vide | According to design and applicable standard |
| Élévation de Température | According to applicable IEC / IEEE / GB requirements |
| Oil Temperature Rise | According to specified design requirements |
| Winding Temperature Rise | According to specified design requirements |
| Enveloppe | Outdoor Weather-Resistant Tank |
| Tank Structure | Sealed / Conservator Type |
| Transformer Oil Tank | Main Tank with Radiators |
| Conservateur | Optional / Project Specific |
| Cooling Radiator | Detachable / Fixed, according to design |
| Bushing | Porcelain / Composite / Condenser Bushing |
| Relais Buchholz | Optional / According to transformer configuration |
| Dispositif de décharge de pression | Standard protection configuration |
| Oil Level Indicator | Provided according to design |
| Indicateur de température de l'huile | Optional / Standard according to specification |
| Indicateur de température des enroulements | Optional / Standard according to specification |
| Online Monitoring | En option |
| DGA Monitoring | Optional Online Dissolved Gas Analysis |
| Bushing Monitoring | En option |
| OLTC Monitoring | En option |
| Installation | Outdoor / Indoor according to project |
| Altitude | Customized according to installation site |
| Température ambiante | According to installation environment |
| Norme applicable | IEC / IEEE / GB / Customer Specification |
| Tests en usine | Routine Tests / Type Tests / Special Tests as Required |
| FAT | Available according to EPC / Utility Inspection Plan |
| Durée de vie | Designed for long-term grid operation |
The transformer can be engineered for different high-voltage grid configurations, including:
For an EPC or utility quotation, the customer should ideally provide:
Rated Capacity + HV Voltage + MV/LV Voltage + Frequency + Vector Group + Impedance + Tap Range + Cooling Method + Insulation Level + Applicable Standard + Installation Conditions
This allows the transformer to be engineered according to the actual grid code, substation design and project technical specification, rather than using a generic standard configuration.
La 220kV / 230kV Power Transformer is designed for high-voltage transmission, grid interconnection, and large-scale power infrastructure projects. Its customized electrical configuration and high-voltage insulation system make it suitable for demanding utility and industrial applications.
Utilisé dans 220kV and 230kV transmission substations for voltage transformation between high-voltage transmission networks and regional distribution systems.
Les applications typiques comprennent :
The transformer provides reliable voltage transformation for high-capacity transmission systems, supporting efficient and stable power delivery over long distances.
It can be configured according to:
Suitable for large power generation facilities requiring high-voltage grid connection and voltage transformation.
Les applications incluent :
The transformer can be integrated into large-scale photovoltaic power projects to provide high-voltage transformation between the renewable energy collection system and the transmission grid.
Il est adapté pour :
Designed for high-voltage grid connection of large wind power projects, including onshore and other large-scale renewable energy installations.
The transformer can be customized according to the project’s:
220kV / 230kV power transformers can be used in large industrial facilities with high electrical demand and dedicated high-voltage substations.
Typical industries include:
High-capacity transformers are suitable for mining operations where reliable electrical supply is required for heavy machinery, processing plants, pumping systems, and auxiliary facilities.
Customized designs can accommodate demanding environmental conditions such as high altitude, dust, temperature variations, and remote project locations.
Le transformateur est adapté aux EPC contractors, electrical contractors, project developers, consultants, and utility companies requiring customized high-voltage transformer solutions.
Project support can cover:
Technical Design → Manufacturing → Factory Testing → Inspection → Export Packing → Transportation → Site Delivery
The 220kV / 230kV transformer can be used for connecting new power generation facilities, industrial loads, and regional electrical networks to existing high-voltage transmission systems.
It can support grid modernization, capacity expansion, renewable energy integration, and new substation construction.
Suitable for replacing aging transformers or increasing transformer capacity in existing substations.
Customized solutions can be developed according to existing:
220kV / 230kV Power Transformers can be supplied for:
For large-scale projects, transformer specifications are developed according to the actual grid requirements, load profile, environmental conditions, installation site, applicable standards, and project technical specifications.
This makes the 220kV / 230kV Power Transformer suitable for complex utility, EPC, industrial, and renewable energy projects where reliability and customized engineering are essential.
A 220kV power transformer is a high-voltage transformer primarily used in transmission substations and large power systems to transform electrical voltage between transmission and distribution levels.
The main difference is the rated high-voltage level and the corresponding insulation, bushing, clearances, and system design requirements. The final configuration should match the local grid voltage and applicable standard.
Oui. Un changeur de prises en charge (OLTC) can be configured when voltage regulation is required during transformer operation.
Yes. The HV/LV voltage ratio can be customized according to the customer’s grid connection and substation requirements.
Capacity is project-dependent. 220kV/230kV transformers are commonly designed for large transmission and substation applications, with the final MVA rating determined by the load and grid requirements.
Depending on the transformer capacity and thermal requirements, cooling configurations can include ONAN, ONAF, OFAF, and ODAF.
Yes. Optional monitoring systems can include temperature, oil level, dissolved gas, bushing, partial discharge, OLTC, and other condition-monitoring functions.
The transformer can be designed and tested according to applicable IEC, IEEE, GB, or other project-specific standards, subject to technical review.
Yes. The product can be configured for EPC contractors, utilities, substations, power plants, renewable energy projects, and large industrial power systems.
Yes. Factory acceptance testing and related documentation can be arranged according to the project inspection plan and contractual requirements.
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