| Brand | Rockwell |
| Model NO. | 10.5kV 11kV 33kV 35kV 44kV Pole Mounted High Voltage Oil Immersed Toroidal Power Transformer |
| Rated voltage | 35kV |
| Rated frequency | 50/60Hz |
| Rated capacity | 500kVA |
| Series | H61 |
Product Description
As a professional manufacturer with 10 years of deep expertise in the transformer industry, our three-phase oil-immersed distribution transformer has become the preferred choice for power supply projects due to its stable performance and authoritative certifications. Covering multiple voltage ratings including 11kV, 33kV, 35kV, and 44kV, the product adopts a pole-mounted design and toroidal core structure, featuring a compact size and low power loss. It is suitable for various power supply scenarios such as outdoor overhead lines, industrial parks, and regional distribution networks.
Every transformer has passed international authoritative type tests and holds complete test reports, manufactured in strict compliance with IEC/ANSI/IEEE standards to ensure safe and stable operation in high-voltage environments. We offer OEM customization services, enabling optimization of product parameters and appearance design according to customer requirements to meet personalized project needs. Ten years of technical accumulation has fostered mature production processes and quality control systems, with rigorous inspections from raw material selection to finished product delivery. We provide efficient and reliable power transmission solutions for global customers, making it a trusted choice for commercial and industrial power distribution.
Product Specification
Frequency: 50Hz or 60Hz
Capacity: 5kVA ~500kVA
Primary Voltage: 2400~46, 000V
Secondary Voltage: 120~ 600V
Some of these earthing transformers cover voltage levels including:3.3 kV 5.5 kV 6 kV 6.6 kV 7.2 kV 10kV 10.5kV 11kV 13.2 kV 13.8 kV 15kV 17.5 kV 20 kV 22kV 24kV 30 kV 33kV 34.5kV 35 kV 46 kVetc. and customization is available.
Model NO. |
H61 |
Core |
Core-type Transformer |
Cooling Method |
Oil-immersed Type Transformer |
Winding Type |
Two-winding Transformer |
Certification |
ISO9001-2000, ISO9001, CCC |
Usage |
Power Transformer |
Frequency Characteristics |
Power Frequency |
Shape of Core |
Ring |
Brand |
Rockwell |
Color |
Gray, Green or Customized |
Transport Package |
Wooden Packing |
Specification |
IEC/ANSI/IEEE |
Trademark |
Rockwell |
Origin |
China |
HS Code |
8504330000 |
Production Capacity |
20000 |
Product Scope:
Meet or exceeds ANSI Standards
Robust construction having excellent short circuit and thermal withstand capabilities
ROCKWELL Transformers are more efficient by Reduced no-load losses and Reduced load losses
Customized to Specific Requirements
Three phase pole mounted type distribution transformer Features:
Three phase transformer with more economical cost
Pole Mounted type transformer for easy installation
Oil Filled type for Cooling Method
Three phase pole mounted transformer is used for power transmission and distribution, with low loss and high efficiency
This type Three phase pole mounted transformer is advanced design to increase short-circuit strength, thermal strength
Durable and corrosion resistant finish meets all ANSI/IEC/BS Standards for single phase pole mounted transformer.
ROCKWELL Three Phase Pole mout type Automated Deisgn System insures each customer's unique requirements are satisfied.
C. R. G. O Silicon Steel or Amorphous Metal is available for customer's option.
Type D16 Series OA Three-Phase Pole-mounted Transformer(CRGO Core BIL 150)
Product Photo




Wenzhou Rockwell Transformer Co., Ltd. which is specialized in producing, developing and marketing power transmission and distribution products. The company is established in 2008, the subsidiary of ROCKWILL GROUP, which is located in Wenzhou city, Zhejiang province, China.
Our main products are including switchgear, ring main unit, transformer, load break switch, SF6/vacuum circuit breaker, substation, auto-recloser, voltage regulator, automatic sectionalizer, tap-changer, CT and PT etc.
Many of these products have the certification reports of the international authoritative KEMA Netherlands and CESI Italy.
We have a professional technical team which can provide you with full design solution and technical support.
Work shop

certificates

Team

Project

Shipping

Attention
The payment term: We accept TT,30% deposit and 70% balance against copy of BL.
The delivery time: Usually it will take about 15-20 days.
The standard of package: Usually use strong plywood case for protection.
The logo: If you have good quantity, it absolute no problem to do OEM.
Our market: our products are popular in Indonesia, Philippines, Russia, USA, Middle East and so on. Some of them are our regular customers and some of them are developing. We hope you can join us and make mutual benefit from our cooperation..
Warranty: in 12 month since BL date.
Our Service
quick response in before sales period help you got order.
excell ent service in production time let you know each step we made.
reliable quality solve you after sale headache.
long period quality warranty ensure you can buy without hesitate.
Why Choose ROCKWELL
One-stop supplier globally.
More than 10 years professional experiences in electrical appliance industry.
We offer professional online technology support for perfecting your electrical solution free.
Experienced sales service and suggestion.
All the products with accessories under strict quality control and final inspection before ship
We can assure the powerful competitive price and reliable quality products.
Most competitive shipping rate from our own shipping forwarder.
Warranty assurance: 12 month
Whatever big or small order, we can provide you one-to-one service.
The toroidal core design offers distinct performance benefits for pole-mounted applications: Lower No-Load Losses: The continuous grain-oriented silicon steel strip with no air gaps reduces core losses by 20-25%, improving energy efficiency. Reduced Audible Noise: The symmetrical magnetic path minimizes vibration, operating 8-10 dB quieter than standard laminated cores. Compact & Lightweight: The space-efficient toroidal structure saves 15-20% in weight and volume, simplifying pole mounting and structural support requirements. Enhanced Reliability: Uniform magnetic flux distribution decreases localized heating and improves resilience to voltage fluctuations.