HomeSupplier Discoveryarrow-rightElectrical & Electronicsarrow-rightTransformerarrow-rightDistributiontransformer Factories & Companies
Filter
Category
More
Management Certification
More
R&D Capacity
Annual Revenue
No.of Employees
Province & Region
More
about distributiontransformer
  • Technological Innovation
  • Reliable Supply Chains
  • Substantial Manufacturing Capabilities

distributiontransformer30+ factories verified

ROOQ ELECTRIC GROUP CO., LTD.

13 yrs
·Manufacturer/Factory & Trading Company
Main Products:
High Voltage Switchgear, Low Voltage Switchgear, Transformer, Distribution Box, Arrester, Disconnector, Fuse, Vacuum Circuit Breaker
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Established in May, 2014, Zhejiang ROOQ Electric Co., Ltd is a technology-oriented enterprise specializing in R&D, sales and services of power transformers, transformer substation, ring main unit, cable branch box, switchgears, gas insulated cabinates, HV/LV switchgears, high and low voltage switches, wire and cable, LED street light and metal street light poles, telegraph posts of metal ect. It has four professional factories under its jurisdiction: Power Equipment Co., Ltd. Transformer Co., Ltd.; Switchgear Co., Ltd.; Metal fittings Co., Ltd.; Import and export trading company: Zhejiang ROOQ Electric Co., Ltd.

Tianhong Power Technology Co., Ltd.

Main Products:
Oil Immersed Transformer, Dry Type Transformer, Box Transformer, Prefabricated Substation (American Type), Dfwk-12 Series Outdoor Ring Main Unit, Kyn28A-12 Metal Armored Middle Mounted Removable, Gcs Type Low Voltage Draw out Switchgear, Ggd Type Complete Switchgear, Single Phase Overhead Distribution Transformer (, Single Phase Overhead Distribution Trnaformer (C
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Tianhong Power Technology Co., Ltd. is a company engaged in transformer and supporting products production, research and development enterprises. The company is located in the central city of Huaihai Economic Zone - Xuzhou, Jiangsu Province, the intersection of Beijing-Shanghai Railway and Longhai Railway, the Eurasian continental bridge across Xuzhou, five provinces thoroughfare, traffic smooth.

Qingdao Hengfengyou Electrical Engineering Co., Ltd.

10 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Switchgear, Substation, Oil-immersed Power Transformer (Only for Sale), Dry-type Transformer (Only for Sale)
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
HENGFENGYOU ELECTRIC GROUP, is an electrical enterprise with transmission and distribution industry as its main business, integrating product research and development, manufacturing and trade. Designated suppliers for the world's top 500 enterprises. Its main products include power transformers, medium and low voltage switchgear, distribution panel, circuit breakers, transmission tower, Cable and new energy distribution equipment. The group has five department: Transformer department, Panel department, power transmission tower department, cable department and new energy department. HENGFENGYOU ELECTRIC GROUP has been working hard to provide the best transmission, distribution solutions for users all over the world

Farady Electric Co., Ltd.

Main Products:
Power Transformer, Ring Main Unit, Switchgear, Auto Recloser, Load Break Switch, Step Voltage Regulator, Three Phase Transformer, Oil Transformer
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Farady Electric, founded in 2006, is a National High-Tech Enterprise with nearly 20 years of professional experience in the medium-voltage electrical sector. With an annual turnover of 45 million USD, we are a professional manufacturer focusing on power transformers, voltage regulators and switchgears, dedicated to providing high-quality electrical equipment and one-stop solutions for global customers.

TSTY ELECTRIC CO., LTD.

16 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Oil Immersed Transformer, Dry Type Transformer, Transformer Substation, High and Low Voltage Switchgear
Country/Region:
Henan, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
TSTY Electric Co., Ltd. Was established in 2011 and is located in Jiaxian County, Henan Province. It is a digital management enterprise integrating R&D, production, sales and installation of power equipment. The company's products cover 6kv, 11kv, 22kv, 35kv, 220kv, etc. Power transformers, distribution transformers, box-type substations, high and low voltage switchgear, wind power, photovoltaic power generation equipment, etc.

Baoding Yuanchen Transformer Manufacturing Co., Ltd.

16 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Transformer, Distribution cabinet
Country/Region:
Hebei, China
R&D Capacity:
OEM Service
Sample Service:
Sample Available
Company Profile:
As a trusted manufacturer and exporter of power transformers, Baoding Yuanchen Transformer Manufacturing Co., Ltd. Stands out as a key player in the global power transmission and distribution equipment market. Rooted in Baoding City, Hebei Province - China's iconic "Hometown of Transformers" - we have dedicated decades to delivering high-performance, compliant, and reliable transformer solutions to clients across Africa, the Middle East, Central Asia, Southeast Asia, South America, and Europe. Our global footprint is built on a commitment to meeting international standards, adapting to regional power needs, and fostering long-term partnerships with distributors, EPC contractors, and utility companies worldwide.

Zhejinag Huguang Transformer Co., Ltd

Main Products:
Dry-Type Transformer, Oil-Immersed Transformer, Amorphous Alloy Dry-Type Transformer, Amorphous Alloy Oil-Immersed Transformer, Reactor, Isolation Transformer, Earthing Transformer, Energy Storage Transformer
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Zhejiang Huguang Transformer Co., Ltd. is a high-tech enterprise specializing in the R&D, design, production, sales and service of power transformers. Its main products include oil-immersed power transformers, dry-type transformers and amorphous alloy transformers of 10kV and 35kV classes.

Jiangsu Xinhong Electrical Equipment Co., Ltd.

8 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Dry Transformer, Oil Immersed Transformer, Pre-installed Substation, High and Low Voltage Switchgear
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Welcome to our company, where a broad selection of products awaits to cater to your diverse needs. We pride ourselves on offering a comprehensive range that spans across multiple categories, tailored to meet the demands of our esteemed customers. Your inquiries are highly valued, and we take pleasure in responding to them at the earliest convenience, ensuring timely communication and efficient service.

Guangdong Forui Electric Co., Ltd.

19 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Power Transformer, Distribution Transformer, Compact Substation, Oil Immersed Transformer, Dry Type Transformer, Pad Mounted Transformer, Renewable Power Transformer, HV/MV/LV Switchgear
Country/Region:
Guangdong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Guangdong Forui Electric Co., Ltd., established in 2007 and located in Guangdong Province, is a professional manufacturer of electric power equipment with integrated R&D, Production, Sales and Service department.

Qingdao NaXin XiangYuan Electrical Equipment Co., Ltd.

Main Products:
High Current Generator, Primary Current Injector
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
      Qingdao Naxin Xiangyuan Electrical Equipment Co., Ltd., headquartered in Qingdao, Shandong Province, is a leading technology enterprise with professional testing qualifications. The company specializes in the research, development, and manufacturing of high-precision testing equipment, offering a range of products including high-current generators, thermal relay testers, frequency converters, circuit resistance testers, temperature rise testers, and constant-current power supplies. We provide reliable products and professional services to global customers, committed to enhancing testing efficiency and ensuring product quality.

Qingdao Junling Transformers Co., Ltd.

15 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Transformers
Country/Region:
Shandong, China
R&D Capacity:
ODM Service
Company Profile:
Qingdao Junling Transformer Co., Ltd. is a designated transformer manufacturer in China with more than 15 years of production experience and an annual output value of over 150 million yuan. The company has excellent manufacturing equipment, a strong technical force, advanced production technology, and complete testing methods. The main products are: Oil-immersed power transformers, epoxy resin dry-type transformers, high and low-voltage switchgear, box-type substations, and power complete installation. The products are widely used in power grid transmission transformers, municipal construction, steel smelting, chemical industries, factory substations, and other industries. The company continuously improves management and constantly improves product quality. The production process and inspection strictly follow the ISO9001 quality system and ISO14001 environmental system. Guided by the core values of "Integrity, Innovation, and Excellence, " we strive to advance technology, ensure superior quality, and prioritize customer satisfaction. We welcome partners from all industries to collaborate with us, working together to shape a brighter future for the power industry!

WENZHOU ENBOLI ELECTRIC CO., LTD.

8 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Transformer; Breaker
Country/Region:
Jiangxi, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Jiangxi People Power Transmission and Transformation Co., Ltd., established as a wholly owned subsidiary of People Electrical Appliance Group through merger, restructuring and expansion of the former Jiangxi Power Transmission Equipment Plant, has more than 40 years of history, and continues and brings together then technologies and talents from transformer enterpreises in the previous relocation and aid construction in Shanghai and Shenyang in the early years of the new nation, with the overall strength ranked firstly amongst the insudtry in the country.

Brightex Tech Co., Ltd.

Main Products:
Low Frequency Transformer, High Frequecy Transformer, Power Supply Transformer, Three Phase Transformer, Class 2 Transformer, Single Phase Transformer, Encapsulated Linear Power Transformer, Toroidal Transformer, Choke Toroidal Coil, Common Mode Inductor
Country/Region:
Guangdong, China
Sample Service:
Sample Available
Company Profile:
Zhuhai Brightex Tech Co., Ltd. is a manufacturer specializing in the manufacture of transformers and inductors.

YIBO MACHINERY CO., LTD.

Main Products:
Foil Winding Machine, Automatic Winding Machine, Vacuum Drying Machine, Vpi Vacuum Pressure Impregnation Equipment, APG Machine, Angle Punching Machine, Busbar Processing Machine, Hv Winding Machine, Transformer Winding Machine, CNC Milling Machine
Country/Region:
Jiangxi, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
YIBO machinery mainly manufacture all kinds of transformer manufacturing equipment: Vacuum equipment (Annealing, Oven, VPI, Casting plant), Transformer foil winding machine, HV and LV winding machine, Transformer processing machine, Core winding machine, Fin folding machine, Silicone steel cutting machine, Busbar processing machine, APG Machine, Mold, CT/PT winding machine, Laser Marking Machine, Testing machine, Electrical porcelain insulator production line, Vacuum circuit breaker production line, Core Cutting Line, CRGO Slitting Line etc.

Shandong Kaichuan Electric Power Equipment Co., LTD

14 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Distribution Box, Frequency Conver
Country/Region:
Shandong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
SDKC Shandong Kaichuan Electric Equipment Co., Ltd. is a high-tech enterprise specializing in the production and sales of industrial electrical components and high and low voltage switchgear. It is a large-scale enterprise integrating R&D, manufacturing, trade and service.

Pearl Electric Co., Ltd.

18 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Dry Type Transformer, Oil Immersed Transformer, Pad Mounted Transformer, Prefabricated Substation, Dry Transformer, Power Transformer, Distribution Transformer, Three Phase Transformer, Transformer Substation, Compact Substation
Country/Region:
Guangdong, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Pearl Electric Co., Ltd. is a reliable power transformer manufacturer since 1958, covering an area of 100, 000 square meters modern workshop with 600 units advanced production equipments and own 618 professional full time employees.

Zhejiang Xianghu Technology Co., Ltd.

Main Products:
Voltage Transformer, Current Transformer, Transformer, Knife Switch, Fault Indicator, Explosion-Proof Lamp, Cable Attachment, Insulating Part, High Voltage Circuit Breaker, Switchgear
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Zhejiang Xianghu Technology Co., Ltd. is a professional manufacturer of high and low voltage switch transmission and distribution equipment and high and low voltage electrical components, the production of fully insulated fully sealed inflatable cabinets, intelligent solid insulated ring host units, outdoor high voltage cable branch box, box-type substation, etc Product quality is stable, reliable, It is deeply trusted and approved by the customers. Our proudly exports its high-quality productsto a myriad of global destinations, with a significant presence in diverse and dynamic countries such as Ghana, Gambia, Ethiopia, the Philippines, South Korea, Bangladesh, Australia, Pakistan, Azerbaijan, Myanmar, and beyond. Our 11kV Current Transformer with 50Hz Frequency for Indoor Use has consistently garnered rave reviews for its impeccable quality and outstanding performance. Our dedicated team excels in crafting the most cost-effective and innovative power solutions, tailored precisely for our clients' needs. We actively contribute to the design of sophisticated substation and distribution plans and engage in competitive overseas bidding. We have triumphantly addressed and resolved intricate product requirements, ensuring our clients' utmost satisfaction.

Jiangsu Hengyi Transformer Co., Ltd

13 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Transformer, Dry Type Transformer, Oil-Immersed Transformer
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Jiangsu Hengyi Transformer Co., Ltd. is a high-tech enterprise specializing in the production, research and development, and sales of power transformers and their supporting products. The company is located at No. 36 Gaoxin Road, Economic Development Zone, Xuzhou City, Jiangsu Province. The company was established in 2013 and has 12 years' experiences in this industry. The company has a registered capital of 80 million yuan, covers an area of nearly 70, 000 square meters, and has a construction area of 20, 000 square meters.

Henan Energy Electric Equipment Co.,Ltd

Main Products:
Power Transformers Oil Immersed Transformer, Distribution Transformer Dry Type Transformer, High Voltage Switchgear, Low Voltage Switchgear Equipment, Vacuum Circuit Breaker, Sf6 Gas Circuit Breaker, Air Core Series Reactor, Disconnector, Surge Arrester, Grounding Resistor Cabinet
Country/Region:
Henan, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Henan Energy Electric Equipment Co., Ltd (founded in September 2011) is a leading high-tech enterprise specializing in the research, design, manufacturing, and integrated services of power transmission and distribution equipment. With over a decade of industry expertise, we provide comprehensive energy solutions tailored to global markets, serving utilities, industries, renewable energy projects, and infrastructure development.

Golden Triangle Electric Power Technology Co., Ltd.

17 yrs·4.0
·Manufacturer/Factory & Trading Company
Main Products:
Oil Transformer, Dry Transformer, Three-Phase Recloser, Single-Phase Voltage Regulator, Three-Phase Voltage Regulator, Switchgear, Substation
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Golden Triangle Electric Power Technology Co. Ltd. was founded in Nov. 2009. It is a national high-tech enterprise, focusing on R&D, manufacturing and sales of industrial and civilian electric energy meters and Three dimensional triangular transformer, Amorphous alloy transformer, Photovoltaic substation intelligent substation.

Jiangsu Hengda Transformer Co., Ltd.

15 yrs·5.0
·Manufacturer/Factory & Trading Company
Main Products:
Transformer, Dry Type Transformer, Distribution Transformer, Oil Immersed Transformer, Amorphous Alloy Transformer, 3 Phase Transformer, Electrical Distribution Transformer, Oil Filled Transformer
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Jiangsu Hengda Transformer Co., Ltd has been a professional Transformer manufacturer with solid industry experience since 2011, backed by a registered capital of USD 15 million.

Galaxy Electric Technology Co., Ltd.

23 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Transformer, Box Type Substation, Electric Energy Metering Box, High and Low Voltage Switchgear, Integrated Distribution Box (Jp Cabinet), Reactor, Cable Distribution Box, Charging Pile Series Product
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
China Galaxy Electric Technology Co., Ltd. (formerly Zhejiang Galaxy Transformer Co., Ltd. ) was founded in 1999. After years of leapfrog development, it has become a modern and diversified enterprise integrating scientific research, production, and trade. The company covers an area of 65000 square meters, with a building area of 45000 square meters and assets of 250 million yuan. It currently has 510 employees and has been awarded the National Torch Project Implementation Enterprise, High tech Enterprise, Famous Brand Enterprise, and Advanced Innovation Enterprise. The company is located in the beautiful coastal open city of Taizhou, Zhejiang. Located 300 kilometers away from the provincial capital Hangzhou, with convenient water, land, and air transportation, it is adjacent to the Ningbo Taizhou Wenzhou Expressway to the west, as well as the Taizhou Shipping Container Terminal and Taizhou Airport.

Hangzhou Giantway Import & Export Co., Ltd.

14 yrs
·Trading Company
Main Products:
Oil Immersed Transformer Accessories (Porcelain Bushing, Tap Changer, Valve), Dry-type transformer Accessories (Fans, Thermostats), Pad-mounded Transformer Accessories (Transformers, Circuit Breakers, Fuses, Terminals)
Country/Region:
Zhejiang, China
Sample Service:
Sample Available
Company Profile:
Our company Hangzhou Giantway Import &export Co., Ltd., was founded in 2013. Our company is mainly doing international business for COMPONENTS, ELECTRICAL INSULATION MATERIALS, which used in oil and dry transformers, electrical motors and generators, electronic products etc. We have also the product for building industry, household applicants and other areas. Our team is growing, and we have more than 10 years experience at this field. We export our products to Europe, South America, Asia, Africa etc...We cooperated closely with professional manufacturers in China. Thanks with the support from them, we offer high quality products with reasonable price to the market. We aim to meet specific demand from our customers, we offer whole-package products, we offer solutions for them, with fast response. We work in flexible and frankly way. We grow together with our suppliers and customers. Except components and electrical insulation materials, we're also looking for new opportunities for other products. Welcome new business opportunities.

Shanghai Zhecheng Electric Co., Ltd.

23 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Oil-Immersed Transformer, Dry Transformer, Mobile Charging Robot, Energy Storage System, PV Panel Cleaning Robot, Box-Type Substation, Photovoltaic Prefabricated Cabin, Medium-Voltage Switchgear, High-Voltage Switchgear, Low-Voltage Switchgear
Country/Region:
Shanghai, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Shanghai Zhecheng Electric Co., Ltd. (Zhecheng Electric) was founded in 2004. It is an enterprise with many years of deep expertise in power electrical equipment, transformer products andindustrial and commercial energy storage products, providing global customers with electrical products and solutions. As a technology-based enterprise with a 20-year history, Zhecheng Electric is a Chinese company specializing in the design of high-precision, cutting-edge products and intelligent manufacturing. The company currently has an intelligent factory covering approximately 8, 600 square meters, equipped with advanced intelligent machine tools, as well as various intelligent testing and experimental equipment. As a technology manufacturing enterprise, Zhecheng Electric focuses on the research and development and production of power electrical equipment, transformer products andindustrial and commercial energy storage products. In the power electrical field, it provides customized solutions to multiple industries such as infrastructure, food and consumer goods, renewable energy, transportation technology, chemical industry, mechanical engineering, electrical engineering/automation, and information technology. Based on the unique characteristics and diverse needs of each industry, Zhecheng Electric tailors products and services for customers to meet their varied requirements.

Tianjin Haode Intelligent Electrical Co., Ltd.

Main Products:
Transformer, Electric Arc Furnace, Generator, Power Distribution Cabinet, Main Transformer, Single Phase Transformer, Three Phase Transformer
Country/Region:
Tianjin, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Tianjin Haode Intelligent Electrical Co., Ltd founded in 2004, the registered capital of 50.13 million yuan, is headquartered in one of China's four big ancient capital of Tianjin, the business scope includes production and sales of high and low voltage electric power transformer, generator, electric arc furnacebox-type substation, power electrical complete sets of equipment integrated installation, power engineering construction, production and sales of cable, etc.

Anhui Changlida Electric Co., Ltd.

Main Products:
Oil-Immersed Power Transformer, Dry-Type Power Transformer, High and Low Voltage Switchgear, Box-Type Substation Series, DC Panel, PV Prefabricated Cabins, Ring Main Unit Switchgear
Country/Region:
Anhui, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Company Profile>>>>>

Wenzhou Shuowei Electric Co., Ltd.

3 yrs
·Manufacturer/Factory & Trading Company
Main Products:
Loadbreak Switch, Bushing Well, Hv Bushing, LV Bushing, off Load Tap Changer, Oil-Immersed Current Limited Backup Fuse, Bay O Net Fuse Holder
Country/Region:
Zhejiang, China
R&D Capacity:
OEM/ODM Service
Sample Service:
Sample Available
Company Profile:
Wenzhou Shuowei Electric (SUVELL) is one of the leading high-tech enterprises in China specializing in research, development, production, and sales of transformer accessories, switch cabinet accessories, cable accessories, power fitting products, and transmission line accessories. Established with a strong commitment to innovation and quality, SUVELL has grown into a trusted name worldwide, providing high-quality accessory products and solutions tailored for the global power industry.

Apex Technologies

Main Products:
Electric Transformer, Oil-Immersed Transformer, Dry Type Transformer, Distribution Transformer, Power Transformer, Three Phase Transformer, Step Down Transformer
Country/Region:
Beijing, China
R&D Capacity:
OEM/ODM Service
Company Profile:
Apex Electrics specializes in the research, development, and manufacturing of transformer products. Our product range includes oil-immersed transformers (S11, S13, SZ11, SZ13, SFZ11, SFZ13), dry-type transformers (SCB, SG), special transformers, prefabricated substations (ZGS, YBM, XBF), amorphous alloy transformers (SBH), transformers for new energy applications, high and low-voltage switchgear and complete sets (XGW, DFP, MNS, GGD), and various transformer accessories.

South China Intelligent Electrical Technology Co.,Ltd.

Country/Region:
Fujian, China
R&D Capacity:
OEM Service
Company Profile:
Founded in 1992 by sole foreign fund, South China Electric, subordinate to South China Group and based in Xiamen, is a specialist manufacturer of various power transformers below 110kV and medium and low voltage switchgear assemblies and VCB. Under its umbrella are South China Electric (Xiamen) Co., Ltd and South China Electric (Quanzhou) Co., Ltd (formerly Fujian Quanzhou Transformer Manufacturing Co., Ltd). The Company has a registered capital of 220 million Hong Kong dollars and an annual output value of over one billion yuan. It is a recommended manufacturer of the products for the national urban and rural power grid transformation and the most important supplier of the products for Fujian power grid transformation, and also an ABB authorized partner.

CEEG Transformer Co., Ltd

12 yrs
Country/Region:
Jiangsu, China
R&D Capacity:
OEM/ODM Service
Company Profile:
China Electric Equipment Group Co., Ltd (CEEG) integrates independent research and development, intelligent manufacturing, and intelligent marketing services, aiming to provide better energy products and newer industrial solutions for the following full series of transformers, box-type substations, and switchgear.
12