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SRM16-12/24 SF6 Gas Insulated Compact MV Switchgear

    SRM16-12/24 SF6 Gas Insulated Compact MV Switchgear

    SRM16-12/24 SF6 Gas Insulated Compact MV Switchgear is designed for safe and reliable medium voltage power distribution. With advanced SF6 insulation technology and compact structure, it provides excellent electrical performance, space efficiency, and operational stability. It is suitable for industrial facilities, renewable energy projects, commercial buildings, and urban power networks.
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I. Overview

The independently developed JHSRM16-12 inflatable SF6 metal enclosed full insulation series ring main switch cabinet has passed the type test of the National High Voltage Apparatus Test Center and been listed as a high-tech product in Zhejiang Province for the Zhejiang Province High tech Technology Project. The product is widely used in 10kV/6kV distribution systems and is a switch product for various urban and rural users' power transformation and distribution systems. The switchgear adopts a modular unit mode, which can be combined according to different purposes; There are two main types of fixed unit combinations and expandable units, which meet the requirements of various substations for compact opening


The need for flexible use of cabinets. The JHSRM16-12 inflatable switchgear is a completely sealed system, with its electrical components and switches enclosed within a stainless steel body. The entire switch device is not affected by external environmental conditions, ensuring operational reliability and personal safety. And it has achieved maintenance free operation. By selecting expandable busbars, any combination can be achieved to achieve full modularity. Expanding the safety insulation and shielding of the busbar ensures reliability and safety. The JHSRM16-12 inflatable switchgear can also provide a TV based automation solution, forming the concept of intelligent switches and minimizing on-site installation and commissioning workload.

The HSRM16-12 inflatable switchgear is divided into non expandable standard configuration and expandable standard configuration. Due to its combination of full and half modules and self scalability, it has extremely special flexibility.

The design lifespan for operation under indoor conditions (20 ° C) exceeds 30 years.

Transformer/Line Protection

JHSRM16-12 inflatable cabinet provides two types of transformer protection: load switch fuse combination device and circuit breaker with relay protection.

Use load switch fuse combination electrical module

The combination of current limiting high-voltage fuses and load switches for transformer protection. The fuse compartment will be installed behind a separate, locked enclosure located at the front of the unit. The load switch uses a spring energy storage mechanism, which can be triggered by a fuse striker.

In order to facilitate the replacement of fuses. You can use the operating handle to remove the end cover of the fuse chamber. The pre installed tripping mechanism of the fuse ensures the waterproof performance of the entire system.

II. Main features of the product

Operational Security

We can provide special security protection for users through the following security measures:. Integrated three station load switch

-- Circuit breakers use load switches instead of isolation switches for greater safety and reliability

-- One side fully enclosed design

-- Mechanical interlocking that meets the five prevention requirements

-- Live display can provide live indication for incoming and outgoing lines


Reliable operation

-- Fully enclosed design, all 10KV switches and busbar live parts are sealed in a 3mm stainless steel welded gas box; Equipped with silicone rubber cable plugs to achieve full insulation and sealing of cable heads, thus avoiding external environmental influences such as dust, moisture, and small animals

-- Spring energy storage operating mechanism, can be operated manually or electrically

-- Panel simulation line diagram provides switch position indication

-- The cabinet is made of galvanized sheet metal, with surface electrostatic spraying to enhance corrosion resistance

-- Safe pressure range of SF6 gas inside the pressure gauge monitoring box

Economy:

-- Maintenance free

-- Highly reliable

-- The service life can reach 20 years


Flexible plan

-- Multiple entry methods can be used to achieve left, right, up, or forward lines.

-- Multiple combination methods can be used, and any combination between units can be achieved.

-- By using insulated busbars, it is possible to achieve front and rear parallel cabinets or left and right parallel cabinets

-- Flexible design scheme

Widely used

-- The feeder line has a large capacity and occupies a small area, suitable for various application needs


III. Design Specifications

-- Technical Description

The JHSRM16-12 series inflatable switchgear is installed on a galvanized sheet frame, with the switch unit inside an SF6 gas box made of corrosion-resistant and non-magnetic 3mm thick stainless steel plate.

SF6 gas tank is a "sealed pressure system" that can operate for 20 years under normal working conditions. The pressure of SF6 gas during normal operation is 0.15~0.4 bar. The gas box is equipped with a pressure release device, which ensures that gas can be released from the bottom or rear when the pressure is too high.

-- Switching unit

The load switch adopts a coaxial rotating double break method, which cooperates with the sliding plate through the same operating hole for kinetic operation. Therefore, the switch can only be in one of the three states of "closing, opening, and grounding" at any time, completely avoiding misoperation.

-- Operating mechanism

The operating mechanism of the switch is installed at the front of the air box and has undergone special processing to prevent rust and corrosion. It is convenient for manual operation and maintenance and easy to achieve electric operation.

ModelSize
SRM16-12/24130*100*200cm


SRM16-12/24 SF6 Gas Insulated Compact MV Switchgear for Reliable Medium Voltage Power Distribution

At Jihui Electric Group Co., Ltd., we have been focusing on medium and low voltage power transmission and distribution equipment for many years. During our cooperation with customers from different industries, we have found that reliable electrical equipment is not only about technical parameters. It is also about stable operation, easy maintenance, safe installation, and long-term value.

Our SRM16-12/24 SF6 Gas Insulated Compact MV Switchgear is developed to meet the growing demand for safe and efficient medium voltage power distribution systems. With compact design, SF6 gas insulation technology, and flexible configuration options, this switchgear provides a practical solution for industrial facilities, renewable energy projects, commercial buildings, and infrastructure applications.

As a professional manufacturer located in Yueqing Economic Development Zone, China, we provide a complete range of electrical products including ring main units, Cable distribution boxes, Prefabricated Substations, transformers, SF6 load switches, and Vacuum circuit breakers. Our factory follows ISO9001 quality management, ISO14001 environmental management, and ISO45001 occupational health and safety management systems.

The SRM16-12/24 series is designed for medium voltage networks up to 24kV. It helps customers improve power system reliability while reducing installation space and maintenance requirements.

What Is SRM16-12/24 SF6 Gas Insulated Compact MV Switchgear?


The SRM16-12/24 SF6 Gas Insulated Compact MV Switchgear is a medium voltage electrical distribution device that integrates switching, protection, and control functions into a compact metal enclosure.

In simple words, it is equipment used to safely control and distribute electricity between the power source and different electrical loads. It plays an important role in protecting electrical systems from faults and ensuring continuous power supply.

Compared with traditional air insulated switchgear, the SRM16-12/24 series uses SF6 gas insulation technology. The main electrical components are placed inside a sealed gas chamber. This structure helps reduce the influence of dust, humidity, pollution, and environmental changes.

For many modern projects, available installation space is becoming smaller while electrical requirements are becoming higher. Compact Medium Voltage Switchgear provides a balance between performance and space efficiency.

The SRM16-12/24 SF6 Gas Insulated Switchgear can be configured with different functional units, including load switch units, circuit breaker units, cable connection units, and protection modules according to project requirements.

How Does SF6 Gas Insulated Compact MV Switchgear Work?

The operating principle of SRM16-12/24 switchgear is based on electrical switching technology and gas insulation protection.

When medium voltage electricity enters the switchgear, the incoming unit receives power from the upstream electrical network. The switching mechanism controls whether the circuit remains connected or disconnected.

During normal operation, electrical current flows through conductive components inside the cabinet. When abnormal conditions such as overload or short circuit occur, the protection system activates and disconnects the circuit to protect downstream equipment.

The SF6 gas inside the sealed chamber provides electrical insulation between different conductive parts. Because the internal environment is controlled, the equipment can maintain stable performance even when installed in areas with humidity, dust, or temperature changes.


The basic operation process includes:

  • Receiving medium voltage power from the electrical network.

  • Controlling current flow through switching devices.

  • Protecting electrical equipment through protection systems.

  • Distributing electricity safely to different loads.

This working method allows the SRM16-12/24 SF6 Gas Insulated Compact MV Switchgear to provide reliable operation for different medium voltage applications.

Main Features of SRM16-12/24 SF6 Gas Insulated Compact MV Switchgear

1. Compact Structure and Space Saving Design

One of the biggest advantages of this switchgear is its compact structure. Many urban power projects, industrial plants, and renewable energy facilities have limited installation areas.

Traditional electrical equipment may require large installation rooms, while compact MV switchgear can provide similar functions in a smaller footprint. This helps customers optimize space usage and reduce construction requirements.

2. Reliable SF6 Gas Insulation Technology

The sealed SF6 gas chamber is an important part of the equipment design. It provides stable insulation performance and reduces the influence of external environmental conditions.

For projects located in areas with high humidity, dust, or changing weather conditions, reliable insulation performance helps improve long-term operating stability.

3. Safe Electrical Operation

Safety is always a key concern in medium voltage power systems. The metal enclosed structure of SRM16-12/24 switchgear helps separate high voltage components from external operating areas.

The equipment is designed to support safer operation and easier maintenance procedures, helping protect both electrical systems and operators.

4. Flexible Configuration Options

Different customers have different power distribution requirements. Some projects need simple switching functions, while others require complete protection and control solutions.

We can provide customized configurations according to voltage level, application environment, installation conditions, and customer technical requirements.

5. Low Maintenance Requirement

Because the main electrical components are installed inside a sealed gas insulated chamber, the equipment requires less protection from external conditions compared with many traditional solutions.

This helps customers reduce maintenance workload and improve system availability.

Technical Comparison Between Different Medium Voltage Switchgear Types

When customers select medium voltage switchgear, they usually compare installation space, environmental resistance, maintenance requirements, and operating reliability. The following table provides a general comparison.

ItemAir Insulated Switchgear (AIS)SF6 Gas Insulated Switchgear (GIS)SRM16-12/24 Compact MV Switchgear
Insulation MethodAir insulationSF6 gas insulationSF6 gas insulation
Equipment SizeLarger installation spaceCompact structureCompact optimized design
Environmental ProtectionMore affected by dust and humidityHigh protection performanceStable operation in complex environments
Application FieldsTraditional distribution systemsIndustrial and infrastructure projectsIndustrial, renewable energy, commercial applications
Maintenance DemandHigher environmental maintenanceLower maintenance requirementReduced maintenance through sealed design

Source: Comparison based on general medium voltage switchgear engineering practices and product structure characteristics commonly used in the electrical industry.

Technical Advantages of SRM16-12/24 Compact MV Switchgear


During product development, we focus on solving real problems customers face during project construction and operation. A good medium voltage switchgear solution should not only meet electrical requirements but also provide convenience throughout the project lifecycle.

Improved Power System Reliability

Power interruptions can create significant losses for factories, commercial facilities, and public infrastructure. The SRM16-12/24 series provides stable switching and protection performance to support continuous power operation.

Suitable for Modern Electrical Projects

Today’s electrical projects require equipment that is smaller, safer, and easier to integrate. The compact design of this switchgear makes it suitable for modern distribution networks.

Designed for Long-Term Operation

We pay attention to every manufacturing detail, from material selection and component assembly to factory testing. Our goal is to provide equipment that can operate reliably for many years.

Applications of SRM16-12/24 SF6 Gas Insulated Compact MV Switchgear

During our cooperation with customers from different countries and industries, we have learned that medium voltage power equipment must adapt to various working environments. A switchgear product used in a factory may have different requirements from one installed in a solar power plant or urban distribution network.

The SRM16-12/24 SF6 Gas Insulated Compact MV Switchgear is designed with flexibility in mind. Its compact structure, reliable insulation performance, and stable switching capability make it suitable for many medium voltage power distribution applications.

1. Industrial Manufacturing Plants

Manufacturing facilities depend on stable electricity to keep production lines running. Equipment failures or unexpected power interruptions may result in production delays and additional operating costs.

In industrial applications, our compact MV switchgear helps control and distribute electrical power safely. It can support factories with motors, automation systems, production equipment, and other electrical loads.

Common industrial applications include:

  • Automotive manufacturing plants

  • Electronic production factories

  • Mechanical processing facilities

  • Steel and metal processing plants

  • Food processing factories

  • Chemical production facilities

2. Renewable Energy Projects


Renewable energy development has created new requirements for Medium Voltage Electrical Equipment. Solar farms and wind power stations need reliable switchgear to connect generated electricity to distribution networks.

The SRM16-12/24 SF6 Gas Insulated Compact MV Switchgear can be used in renewable energy systems for power control, switching, and protection. Its sealed structure helps maintain stable operation in outdoor or remote project locations.

For renewable energy investors and EPC contractors, reliable electrical equipment helps improve project availability and reduce unexpected maintenance work.

3. Urban Power Distribution Systems

Modern cities require efficient power networks while available installation space continues to decrease. Compact electrical equipment has become increasingly important in urban infrastructure projects.

The compact design of SRM16-12/24 switchgear allows it to be installed in smaller distribution rooms, underground facilities, and urban substations.

4. Commercial Buildings and Public Facilities

Shopping centers, hospitals, airports, office buildings, and transportation facilities require continuous power supply for daily operation.

Our Medium Voltage Gas Insulated Switchgear provides a reliable solution for commercial and public infrastructure projects where safety and stable operation are important.

5. Mining, Oil, and Chemical Industries

Mining and petrochemical industries often operate under demanding conditions. Electrical equipment needs to maintain stable performance despite dust, humidity, temperature changes, and long working hours.

The sealed insulation structure of SRM16-12/24 helps improve environmental protection performance and supports reliable operation in challenging industrial environments.

Industry Application Comparison of SRM16-12/24 Switchgear

Application IndustryMain Power RequirementsProduct Advantages
Industrial ManufacturingContinuous power supply and equipment protectionStable switching and protection performance
Solar and Wind EnergyReliable grid connectionSuitable for renewable energy distribution systems
Urban InfrastructureCompact installation and safetySpace-saving switchgear structure
Commercial BuildingsSafe and continuous electricity supplyReliable medium voltage power control
Mining and Chemical IndustryOperation in complex environmentsSealed insulation protection

Source: Industry application analysis based on common medium voltage distribution engineering practices and customer project requirements.

Manufacturing Process of SRM16-12/24 SF6 Gas Insulated Compact MV Switchgear

At Jihui Electric, we believe that product reliability comes from every step of manufacturing. A high-quality switchgear product requires careful control from engineering design to final inspection.

Our manufacturing process focuses on accuracy, consistency, and quality control to ensure every unit meets customer requirements.

1. Engineering Design and Project Review

Before production begins, our engineering team reviews technical requirements with customers. We consider voltage level, installation environment, application conditions, and system requirements.

This step helps us select suitable configurations and ensure that the final product matches the customer's project needs.

2. Material Preparation and Inspection

Reliable raw materials are the foundation of stable equipment performance. We carefully check materials and components before they enter the production process.

Important parts such as cabinet structures, insulation materials, electrical components, and connection systems are controlled according to technical requirements.

3. Cabinet Manufacturing and Assembly

The metal enclosure is manufactured through professional processing procedures. Accurate dimensions are important because they influence assembly quality and long-term mechanical stability.

Our technicians follow standardized production procedures to complete cabinet assembly and internal component installation.

4. Electrical Testing

After assembly, each SRM16-12/24 SF6 Gas Insulated Compact MV Switchgear unit undergoes electrical inspection.

Testing procedures include:

  • Insulation performance testing

  • Electrical connection inspection

  • Switching operation testing

  • Protection function checking

  • Mechanical operation verification

5. Final Factory Inspection and Packaging

Before shipment, we complete final inspection according to product specifications and customer requirements.

For international delivery, we use professional packaging methods including moisture protection, impact protection, and vibration protection to ensure safe transportation.

Quality Management and Production Standards

Electrical equipment is expected to operate safely for many years, so quality control is an essential part of our manufacturing system.

Jihui Electric operates according to internationally recognized management systems:

  • ISO9001 Quality Management System

  • ISO14001 Environmental Management System

  • ISO45001 Occupational Health and Safety Management System

These certifications support our continuous improvement in production management, environmental responsibility, and workplace safety.

Production StageMain Control ItemsQuality Purpose
Incoming Material InspectionMaterial specification and quality checkingEnsure reliable production materials
Manufacturing ProcessAssembly accuracy and process controlMaintain product consistency
Electrical TestingInsulation and operation performanceVerify safe electrical function
Final InspectionComplete equipment verificationEnsure delivery quality

Source: Based on Jihui Electric internal production management procedures and quality inspection practices.

Why Choose Jihui Electric for SRM16-12/24 SF6 Gas Insulated Switchgear?

Choosing a switchgear supplier is not only about purchasing equipment. It is about selecting a partner who can support your project from technical communication to final delivery.

Professional Medium Voltage Equipment Manufacturer

We specialize in medium and low voltage power transmission and distribution equipment up to 35kV. Our experience covers ring main units, transformers, switchgear cabinets, Cable accessories, and complete power solutions.

Complete Project Support

We provide support during product selection, technical communication, manufacturing, inspection, transportation, and after-sales service.

Our goal is to make the purchasing process easier for electrical contractors, distributors, engineering companies, and project owners.

Customization Capability

Every project has different requirements. We can adjust product configurations according to voltage ratings, installation conditions, customer standards, and project specifications.

Reliable International Delivery

For overseas customers, we provide professional export support. Products are packed according to transportation requirements and can be shipped by sea, land, or combined transportation methods.

Frequently Asked Questions About SRM16-12/24 SF6 Gas Insulated Compact MV Switchgear

Q1: What voltage range does SRM16-12/24 switchgear support?

The SRM16-12/24 series is designed for medium voltage applications including 12kV and 24kV power distribution systems.

Q2: What is the advantage of SF6 gas insulation?

SF6 gas insulation provides stable electrical insulation performance inside a sealed chamber. It helps reduce the influence of dust, humidity, and environmental changes.

Q3: Where can this compact MV switchgear be installed?

It can be used in industrial plants, renewable energy projects, urban distribution networks, commercial buildings, mining projects, and infrastructure facilities.

Q4: Can Jihui Electric provide customized switchgear solutions?

Yes. We provide customized solutions based on customer technical requirements, project conditions, and application needs.

Q5: How does Jihui Electric control product quality?

We control quality through standardized production procedures, factory testing, professional inspection processes, and ISO-certified management systems.

Conclusion

The SRM16-12/24 SF6 Gas Insulated Compact MV Switchgear is designed for customers who need safe, compact, and reliable medium voltage distribution equipment.

With SF6 insulation technology, flexible configuration, professional manufacturing processes, and strict quality control, it provides a dependable solution for modern power networks.

At Jihui Electric Group Co., Ltd., we continue to improve our products and services to support customers worldwide. Whether you are an electrical contractor, distributor, EPC company, or project owner, we are ready to provide reliable medium voltage switchgear solutions for your applications.

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