| Brand | Vziman |
| Model NO. | H59 H61 20kV 30kV 33kV High Voltage Oil Immersed Toroidal Power Transformer |
| Rated voltage | 33kV |
| Rated frequency | 50/60Hz |
| Rated capacity | 400kVA |
| Series | S |
Product Description
The H59/H61 33/0.41kV pole-mounted high-voltage oil-immersed toroidal transformer is a premium three-phase power distribution solution tailored for industrial and civil grid applications. With 10 years of specialized transformer manufacturing experience, we deliver reliable performance that meets global industry standards.
Boasting a precise 33kV high-voltage input and 0.41kV low-voltage output, the toroidal design ensures low energy loss, high efficiency, and stable power transmission. Crafted with H59/H61 high-quality materials, it features excellent corrosion resistance and mechanical strength, paired with advanced oil-immersed insulation for long-term durability in outdoor environments.
Backed by authoritative Type Test Reports, the product guarantees compliance and safety. We also offer flexible OEM services to meet customized project requirements. Ideal for pole-mounted installations in distribution networks, industrial parks, and commercial complexes, this transformer combines professional manufacturing expertise, certified quality, and tailored solutions—your trusted choice for efficient, reliable power distribution.
Product Specification:
Frequency: 50Hz or 60Hz
Capacity: 5kVA ~500kVA
Primary Voltage: 2400~46, 000V
Secondary Voltage: 120~ 600V
Main Technical Datas：
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. |
S-m |
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 |
Color |
Gray, Green or Customized |
|
Transport Package |
Wooden Packing |
Specification |
IEC/ANSI/IEEE |
Trademark |
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 Vziman
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.
50KVA capacity (copper winding), suitable for 20kV power grid: H59 50kVA 20KV 400V ±5%
100KVA capacity (copper winding): H59 100KVA 20KV 400V ±5%
160KVA capacity (copper winding): H59 160KVA 20KV 400V ±5%
250KVA capacity:
Aluminum winding version: H59 250KVA 20KV 400V ±5% ALU
Copper winding version: H59 250kVA 20KV 400V ±5%
630kVA capacity:
Aluminum winding under 20kV voltage class: H59 630kVA 20KV 400V ±5% ALU
Copper winding under 20kV voltage class: H59 630kVA 20kV 400V ±5% CU
This H59/H61 33/0.41kV high-voltage oil-immersed toroidal transformer is ideally suited for pole-mounted installation in medium-voltage distribution networks, industrial parks, rural power grids, and commercial complexes. Its toroidal structure ensures compact size and low energy loss, making it perfect for scenarios requiring space-saving installation and stable power supply—such as power distribution for production lines, residential area centralized power supply, and remote area grid extension. It operates reliably in harsh outdoor environments with temperature ranges from -30℃ to 50℃, adapting to humidity, dust, and other adverse conditions.
