zishengelectric
Project Partners
Phone/WhatsApp: 8619131285373
Email: info@zishengtransformer.com
Factory Headquarters: No. 118, Jingyi Street, Economic Development Zone.
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Project Partners
Phone/WhatsApp: 8619131285373
Email: info@zishengtransformer.com
Factory Headquarters: No. 118, Jingyi Street, Economic Development Zone.
The 300kVA Three Phase Pad Mounted Transformer is a high-performance outdoor distribution transformer designed for reliable medium-voltage to low-voltage power conversion in utility, commercial, industrial, and renewable energy applications.
Featuring a compact pad-mounted structure, the transformer is installed on a concrete foundation and enclosed in a secure, weather-resistant steel cabinet. This design provides enhanced safety, reduced maintenance requirements, and reliable operation in outdoor environments.
The 300kVA pad mounted transformer is widely used in underground distribution networks, commercial power systems, industrial facilities, solar PV plants, wind farms, and infrastructure projects. It provides stable power supply with excellent energy efficiency, low operating losses, and long service life.
Manufactured using advanced transformer technology and high-quality electrical materials, the transformer can be customized according to IEC, ANSI, IEEE standards and specific EPC project requirements.
The 300kVA Three Phase Pad Mounted Transformer adopts an oil-immersed design with ONAN (Oil Natural Air Natural) cooling. The transformer body is installed inside a robust metal enclosure that protects internal components from moisture, dust, corrosion, and mechanical damage.
The transformer core uses high-quality grain-oriented silicon steel with optimized magnetic circuit design to reduce no-load losses and improve energy efficiency.
The winding system is manufactured using high-conductivity copper or aluminum conductors combined with advanced insulation materials. The optimized winding structure provides excellent mechanical strength, thermal stability, and resistance against short-circuit forces.
The sealed tank structure ensures reliable insulation performance, prevents oil leakage, and supports long-term outdoor operation.
The 300kVA pad mounted transformer provides stable and continuous power conversion for medium-voltage distribution systems.
Main advantages:
It is suitable for continuous operation in demanding power distribution environments.
The enclosed cabinet design provides additional protection for operators and equipment.
Features include:
The compact structure makes it ideal for urban areas and locations with limited installation space.
The transformer adopts advanced low-loss technology to improve overall system efficiency.
Energy-saving features:
The design helps reduce operating costs throughout the transformer’s service life.
The transformer supports various voltage combinations according to different regional grid systems.
Typical configurations:
Customized voltage ratings are available based on customer requirements.
The transformer cabinet is manufactured from high-strength steel with corrosion-resistant treatment.
Suitable for:
Optional coating systems and protection levels are available for special applications.
Available options:
Features:
Options include:
Provides excellent dielectric strength and heat dissipation performance.
Optional accessories:
The 300kVA Three Phase Pad Mounted Transformer is manufactured through strict production procedures:
Technical specifications are reviewed according to project requirements.
Precision-cut silicon steel sheets are assembled to ensure low-loss magnetic performance.
Copper or aluminum windings are produced using controlled winding processes.
The core, coils, tank, enclosure, and accessories are assembled.
High-quality insulating oil is filled under controlled conditions.
Complete electrical testing and quality inspection are performed before shipment.
The 300kVA pad mounted transformer is commonly used for:
It provides reliable connection between renewable power generation systems and medium-voltage grids.
Suitable for:
The enclosed structure improves safety and reduces maintenance requirements.
Used in:
Providing stable power for commercial electrical loads.
Suitable for:
Supporting motors, production equipment, and industrial power systems.
Applications include:
Each 300kVA Three Phase Pad Mounted Transformer undergoes strict factory testing before delivery.
Routine tests include:
Factory Acceptance Test (FAT) and additional type tests are available for EPC and utility projects.
✔ Direct transformer manufacturer supply
✔ IEC / ANSI / IEEE standard production capability
✔ Customized voltage and protection solutions
✔ Complete factory testing before shipment
✔ Suitable for EPC and utility applications
✔ Reliable outdoor performance
✔ Professional export support worldwide
The 300kVA Three Phase Pad Mounted Transformer provides a safe, efficient, and flexible power distribution solution for modern electrical networks, renewable energy projects, industrial facilities, and commercial power systems worldwide.
| Item | Specification |
|---|---|
| Product Type | Three Phase Pad Mounted Transformer |
| Rated Capacity | 300 kVA |
| Phase | Three Phase |
| Frequency | 50Hz / 60Hz |
| Primary Voltage | 6.6kV / 10kV / 11kV / 13.8kV / 15kV / 20kV / 22kV / 33kV / Customized |
| Secondary Voltage | 380V / 400V / 415V / 480V / Customized |
| Transformer Type | Oil-Immersed Pad Mounted Transformer |
| Cooling Method | ONAN (Oil Natural Air Natural) |
| Installation Type | Outdoor Pad Mounted Installation |
| Winding Material | Copper / Aluminum |
| Core Material | Grain-Oriented Silicon Steel |
| Insulating Medium | Mineral Transformer Oil / Eco-Friendly Insulating Fluid |
| Vector Group | Dyn11 / Yyn0 / Customized |
| Tap Changer | Off-Circuit Tap Changer (NLTC) |
| Tap Range | ±2×2.5% / ±5% / Customized |
| Impedance Voltage | Typically 4%–6% (Customized) |
| No-Load Loss | According to IEC / ANSI / IEEE requirements |
| Load Loss | According to IEC / ANSI / IEEE requirements |
| Insulation Level | According to Rated Voltage Class |
| Temperature Rise | According to Applicable Standards |
| High Voltage Connection | Cable Connection / Bushing Connection |
| Low Voltage Connection | Cable Connection / Busbar Connection |
| High Voltage Protection | Load Break Switch / Fuse / Customized |
| Low Voltage Protection | Circuit Breaker / Customized |
| Surge Protection | Surge Arrester (Optional) |
| Enclosure Material | Powder-Coated Steel Cabinet |
| Enclosure Design | Weather-Resistant Outdoor Cabinet |
| Protection Degree | IP54 / IP55 / Customized |
| Ambient Temperature | -25°C to +40°C (Standard) |
| Altitude | ≤1000m (Higher Altitude Available) |
| Noise Level | According to IEC / Customer Requirements |
| Applicable Standards | IEC 60076 / ANSI C57 / IEEE |
| Service Life | 25–30 Years Under Normal Operating Conditions |
The 300kVA Three Phase Pad Mounted Transformer can be equipped with:
For utility, renewable energy, and EPC projects, the transformer can be customized with:
Final technical parameters can be customized according to local grid conditions, project specifications, installation environment, and customer requirements.
The 300kVA Three Phase Pad Mounted Transformer can be customized to meet different grid requirements, environmental conditions, and project specifications. We provide flexible transformer solutions for utility, renewable energy, industrial, commercial, and EPC projects.
Customized electrical parameters include:
The transformer can be equipped with various protection and monitoring devices:
The pad mounted enclosure can be customized according to installation conditions:
Available configurations include:
For international projects and EPC requirements, we provide:
Customized 300kVA Three Phase Pad Mounted Transformer solutions are available to meet different power distribution requirements, ensuring reliable operation and long-term performance in global projects.
The 300kVA Three Phase Pad Mounted Transformer is carefully inspected, protected, and packed before shipment to ensure safe transportation and reliable installation at the project site.
Before delivery, each transformer undergoes final inspection and preparation, including:
The transformer is designed for safe long-distance transportation by:
Professional packing methods help protect the transformer against vibration, impact, humidity, and harsh transportation conditions.
Each shipment can be supplied with complete documentation, including:
We provide comprehensive export support for overseas customers and EPC projects, including:
Every 300kVA Three Phase Pad Mounted Transformer is carefully handled from factory to project site to ensure safe arrival, easy installation, and reliable operation after commissioning.
Each 300kVA Three Phase Pad Mounted Transformer undergoes strict quality control and comprehensive testing throughout the manufacturing process to ensure reliable electrical performance, safety, and long-term operation.
All tests are performed according to IEC 60076, ANSI C57, IEEE standards, and customer-specific project requirements.
The resistance of transformer windings is measured to verify:
The transformer turns ratio is tested to confirm:
This test evaluates transformer core performance by measuring:
The transformer is tested under rated load conditions to verify:
The insulation system is checked between:
This ensures safe operation and reliable insulation performance.
The transformer insulation strength is tested under specified voltage conditions to ensure the insulation system can withstand electrical stress during operation.
This test verifies the internal insulation system and confirms the transformer’s ability to withstand abnormal voltage conditions.
The transformer tank and sealing system are inspected to ensure:
Before shipment, each transformer is carefully inspected for:
For EPC contractors, utilities, and large-scale power projects, a Factory Acceptance Test (FAT) can be arranged before shipment.
FAT services include:
Available documents:
Through strict manufacturing control and testing procedures, every 300kVA Three Phase Pad Mounted Transformer is delivered with verified quality, stable performance, and dependable operation for global power distribution applications.
Every 300kVA Three Phase Pad Mounted Transformer undergoes complete routine testing before shipment to verify electrical performance, safety, and compliance with international standards.
Routine tests are carried out according to IEC 60076, ANSI C57, IEEE standards and customer project specifications.
The resistance of each transformer winding is measured to verify:
This test confirms:
Measures transformer performance under no-load conditions, including:
Evaluates transformer performance under rated operating conditions:
Checks insulation performance between:
Ensures safe and stable operation.
Verifies the dielectric strength of the insulation system and ensures the transformer can withstand specified electrical stresses.
Tests internal insulation performance and confirms reliable operation under different voltage conditions.
The transformer tank, sealing system, and accessories are inspected to ensure:
Before delivery, each transformer is checked for:
Complete testing documents can be provided with each transformer shipment, including:
Additional inspection services and customer witness testing are available for EPC projects, utility applications, and international power distribution projects.
Strict routine testing ensures every 300kVA Three Phase Pad Mounted Transformer meets project requirements and provides safe, stable, and reliable operation throughout its service life.
The 300kVA Three Phase Pad Mounted Transformer is designed for safe and reliable medium-voltage to low-voltage power distribution in a wide range of applications. With its compact structure, weather-resistant enclosure, and flexible configuration options, it is an ideal solution for utility networks, renewable energy projects, industrial facilities, commercial buildings, and infrastructure developments.
The 300kVA pad mounted transformer is widely used in renewable energy systems to connect distributed power generation sources with medium-voltage distribution networks.
Typical applications include:
It provides stable voltage conversion, efficient power transmission, and reliable operation for clean energy infrastructure.
The transformer is suitable for modern power distribution systems requiring safe and efficient outdoor installation.
Applications include:
The enclosed pad mounted design improves safety, reduces maintenance requirements, and supports long-term reliable operation.
The 300kVA pad mounted transformer provides dependable power supply for various commercial facilities.
Common applications include:
It supports lighting systems, HVAC equipment, elevators, and other critical electrical loads.
Designed for demanding industrial environments, the transformer provides stable power distribution for production and manufacturing operations.
Suitable for:
It supplies reliable electricity for motors, production equipment, automation systems, and auxiliary facilities.
The compact outdoor design makes the transformer suitable for various public and infrastructure applications.
Used in:
For facilities requiring high power reliability, the 300kVA pad mounted transformer can be integrated into medium-voltage distribution systems for:
Optional monitoring and protection solutions help improve system reliability and operational safety.
The 300kVA Three Phase Pad Mounted Transformer provides a safe, efficient, and customizable power distribution solution for utilities, EPC contractors, renewable energy developers, industrial users, and commercial projects worldwide.
A 300kVA Three Phase Pad Mounted Transformer is an outdoor distribution transformer designed to convert medium-voltage power into low-voltage electricity for end users. It is installed on a concrete pad and protected by a weather-resistant enclosure, making it suitable for utility, commercial, industrial, and renewable energy applications.
The primary and secondary voltage ratings can be customized according to local grid conditions and project requirements.
Common configurations include:
Other voltage combinations are available upon request.
Yes. We provide customized solutions based on customer specifications, including:
Yes. The transformer is designed for outdoor operation with a durable steel enclosure that provides protection against:
Special designs are available for coastal areas and harsh environments.
The standard cooling method is ONAN (Oil Natural Air Natural), which uses natural circulation of insulating oil and air for heat dissipation.
Alternative cooling solutions can be customized for special applications.
The transformer can be manufactured with:
Optional protection and monitoring components include:
The transformer can be manufactured according to:
Customized standards are also available according to customer requirements.
Each transformer undergoes complete factory testing, including:
Complete test reports can be provided for quality verification.
Yes. FAT can be arranged for EPC contractors, utilities, and large-scale projects.
FAT services include:
To provide an accurate quotation, please provide:
Our engineering team will recommend the most suitable transformer configuration according to your project requirements.
Compared with traditional distribution transformers, pad mounted transformers provide:
The 300kVA Three Phase Pad Mounted Transformer is a reliable and customizable solution for modern power distribution systems, supporting global utility, industrial, commercial, and renewable energy projects.
300kVA Three Phase Pad Mounted Transformer