Green empowerment, sharing a better life
——Juhonkia Electric
Environmentally friendly and
efficient, intelligent monitoring
——Inflatable cabinet, a smart choice for future power grids
——Small stature, great wisdom
Ring main unit
Bringing agility and intelligence to
urban power grids
——Intelligent integration, security upgrade
Pole mounted circuit breaker
Quality control for a safe and secure future
One-stop power solution
From high voltage to low voltage, making energy management easier
Our Advantage
Zhejiang Juhonkia Intelligent Electric Co.,Ltd
Has a CNAS accredited laboratory
Has a CNAS accredited laboratory
It has a CNAS accredited laboratory, a smart quality control brain, and a shared laboratory...
R&D institutions and corporate research institutes
R&D institutions and corporate research institutes
It has multiple specialized R&D institutions and corporate research institutes, and its products have independent...
Multiple product categories, complete specifications, and intelligent equipment
Multiple product categories, complete specifications, and intelligent equipment
Leading the domestic leading level, digital workshops, intelligent factories...
There is always a ring main unit suitable for you,
and we can provide customized services according to your special requirements.
It has a CNAS accredited laboratory, a smart quality control brain, and a shared laboratory...
OEM/ODM
Hot Products

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Our Products

JSR6-12/24 SF6 gas-insulated metal-enclosed ring main unit
JSR6-40.5 SF6 gas-insulated metal-enclosed ring main unit
GSR6-27.5 SF6 free gas-insulated metal-enclosed switchgear (C-GIS)
GSR6-12 SF6 free gas-insulated metal-enclosed switchgear (C-GIS)
Our Products
Applications

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Case presentation

Hangzhou Metro
Wind power
PV
Airport
Three Gorges of the Yangtze River
News Center

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News information

How to Select Gas Insulated Switchgear for Urban Substations

2026/10/01 00:06:02

How to Select Gas Insulated Switchgear for Urban Substations
Gas Insulated Switchgear Manufacturer selection for an urban substation requires more than comparing voltage ratings and purchase prices. The right equipment must fit a restricted site, maintain high service reliability, meet local electrical and environmental regulations, support safe maintenance, and provide predictable lifecycle costs. This guide explains how purchasing teams, utility

2026/10/01 00:06:06

Transmission vs Distribution Systems: What Equipment Is Used at Each Stage?
Power Transmission and Distribution is the complete path that moves electricity from generating stations to homes, factories, offices, and public infrastructure. Buyers who compare these systems usually want more than a basic definition. They need to know which equipment belongs at each stage, how the equipment performs in actual service, what it costs to maintain, and which specifications matter
How Are Prefabricated Substations Transported and Installed On Site?

2026/09/22 00:05:49

How Are Prefabricated Substations Transported and Installed On Site?
If you are asking, “How Are Prefabricated Substations Transported and Installed On Site?”, we can simplify the entire project into a controlled sequence: verify the site, prepare the foundation, plan lifting and logistics, inspect the equipment, position the enclosure, complete electrical connections, and perform commissioning tests. With Juhonkia’s engineering support, this method helps
Metal Clad Switchgear for Industrial Plants: What Should Buyers Consider?

2026/09/21 00:07:46

Metal Clad Switchgear for Industrial Plants: What Should Buyers Consider?
Metal Clad Switchgear for Industrial Plants: What Should Buyers Consider? Metal-clad switchgear is a medium-voltage electrical distribution assembly in which circuit breakers, busbars, cable compartments, and control components are separated by grounded metal barriers. In an industrial plant, it receives and distributes power while providing switching, overload protection, short-circuit
What Maintenance Is Required for Gas Insulated Switchgear?

2026/09/18 00:05:24

What Maintenance Is Required for Gas Insulated Switchgear?
Choosing a reliable Gas Insulated Switchgear Manufacturer affects grid safety, installation space, outage risk, and long-term operating cost. A qualified high voltage gas insulated switchgear manufacturer should provide equipment that matches the system voltage, short-circuit level, enclosure design, gas-management plan, and local electrical standards. This guide explains how gas-insulated
Ring Main Unit vs MV Switchgear: What Are the Differences?

2026/09/17 00:05:38

Ring Main Unit vs MV Switchgear: What Are the Differences?
For a Ring Main Unit Manufacturer, the most important comparison is not simply the equipment name or voltage rating. Buyers need to understand how each solution performs in real distribution networks, how much space and maintenance it requires, how it responds to faults, and which option will provide the best long term operating value. Juhonkia helps users evaluate these decisions by comparing

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