SRM □-12 fully sealed and fully insulated inflatable ring network switchgear

### SRM □-12 Fully Sealed and Fully Insulated Inflatable Ring Network Switchgear Product Description 1. **Rated Voltage**: Designed to operate at a maximum voltage of 12kV, ensuring reliable performance in demanding environments.
2. **Rated Current**: Capable of handling continuous currents up to 630A, suitable for various industrial applications.
3. **Tripping Capacity**: Features a robust tripping capacity of 20kA, allowing for effective fault current interruption and enhanced safety.
4. **Tripping Time**: Achieves rapid disconnection with a tripping time of less than 0.1 seconds, minimizing system downtime.
5. **Operation Mode**: Available in manual and electric operation modes, providing flexibility to suit different operational requirements.
6. **Distance**: Ensures a minimum contact distance of 125mm after disconnection, promoting safe isolation of the circuit.
7. **Delivery**: Products are shipped via air or sea freight, ensuring timely and reliable delivery options tailored to customer needs.
8. **Packaging**: Each unit is securely packaged in a weather-resistant outer box, designed to protect the product during transit and storage.
Product Description

SRM □-12 fully sealed and fully insulated inflatable ring network switchgear Introduction

The SRM □-12 fully sealed and fully insulated inflatable ring network switchgear is an advanced electrical device designed for use in medium-voltage distribution networks. It provides reliable performance with full insulation and sealing, ensuring safety and durability in harsh environments. This switchgear is ideal for applications requiring compact design, robust insulation, and minimal maintenance, making it perfect for power distribution in urban and industrial settings.

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Product Features and Advantages

  • Full Insulation and Sealing: The SRM □-12 switchgear is fully insulated and hermetically sealed, providing superior protection against environmental factors such as dust, moisture, and corrosion.
  • Compact Design: This switchgear is designed to be compact and space-efficient, making it suitable for installations where space is limited.
  • Long Service Life: Its sealed design ensures a long lifespan with minimal maintenance, making it a cost-effective solution for medium-voltage distribution networks.
  • Safety and Reliability: The fully insulated design minimizes the risk of electrical hazards, ensuring safe operation even in adverse conditions.
  • Minimal Maintenance: Thanks to its sealed structure, this switchgear requires less frequent inspections and maintenance, reducing downtime and operational costs.

Product Structure

The SRM □-12 fully sealed and fully insulated inflatable ring network switchgear is composed of:

  • Main Housing: A durable, sealed enclosure that protects the internal components from external environmental factors.
  • Insulated Busbar: Provides safe electrical connectivity between the various components.
  • Vacuum Circuit Breaker (VCB): Ensures reliable interruption of electrical faults while minimizing wear on the system.
  • Gas-filled Chamber: The internal components are housed in a gas-insulated chamber, providing additional protection and enhancing the lifespan of the device.

Main Technical Parameters

  • Rated Voltage: 12 kV
  • Rated Current: Up to 630 A
  • Frequency: 50 Hz
  • Insulation Level: 75 kV
  • Short-circuit Breaking Capacity: 20 kA
  • Protection Class: IP67
  • Ambient Temperature: -25°C to +40°C

project

unit

C module load

switch unit

F module load switch-fuse

combination electric unit

V module breaker

unit

Rated voltage

kV

12

12

12

Rated current

A

630

 

630

Power frequency

withstand voltage/1 minute

Phase/phase

kV

42

42

42

Fracture

kV

48

48

48

 

Impact pressure

Phase/phase

kV

75

 

75

Fracture

kV

85

 

85

Rated closed-loop breaking current

A

630

   

Rated cable charging breaking current

A

30

   

Rated breaking inductive current

A

 

   

/3s Rated short-time withstand current /3s

kA

20

 

20

Rated peak withstand current

kA

50

1700

50

Rated transfer current

A

 

 

 

Rated short-circuit breaking current

kA

   

20

Rated short-circuit current

kA

50

   

Rated short circuit breaking frequency

times

   

30

Rated short circuit closing times (load switch/grounding switch)

times

5/5

   

Rated current breaking frequency

times

>100

   

Number of mechanical operations (load switch/ grounding switch

times

5000/2000

5000/2000

30000

SRM -12 Fully sealed fully insulated inflatable ring network switchgear03SRM -12 Fully sealed fully insulated inflatable ring network switchgear04

Product Use Conditions

The SRM □-12 fully sealed and fully insulated inflatable ring network switchgear is designed to operate under the following conditions:

  • Installation altitude: Up to 2000 meters above sea level
  • Ambient temperature: -25°C to +40°C
  • Relative humidity: ≤ 95% (non-condensing)
  • No frequent vibrations or severe shocks
  • Suitable for indoor and outdoor installations

Product Application Scope and Field

This switchgear is widely used in:

  • Urban Power Distribution: Perfect for use in dense urban environments where space is at a premium.
  • Industrial Power Systems: Provides reliable power distribution for factories and industrial complexes.
  • Rural Network Transformation: Ideal for upgrading rural power grids to modern standards.
  • Power Plants and Substations: Ensures safe and reliable power distribution in high-voltage facilities.
  • Mining and Petrochemical Industries: Withstands harsh environments, providing stable power in challenging conditions.
Power plants and substations
Power plants and substations
Industrial power distribution systems
Industrial power distribution systems
Railways and urban infrastructure
Railways and urban infrastructure
Mining and petrochemical industries
Mining and petrochemical industries

OEM Services

At Shaanxi Huadian Electric Co., Ltd., we offer OEM services tailored to your specific needs. Whether you require custom designs, modifications to technical specifications, or private labeling, we have the capabilities to meet your requirements. Our team of experienced engineers and technicians will work closely with you to deliver a SRM □-12 fully sealed and fully insulated inflatable ring network switchgear that fits your exact specifications.

FAQ

Q1: What is the delivery time for SRM □-12 switchgear?
A: Delivery typically takes 4-6 weeks, depending on the order size and customization requirements.

Q2: Can the SRM □-12 switchgear be used outdoors?
A: Yes, the switchgear is fully sealed and insulated, making it suitable for both indoor and outdoor installations.

Q3: What is the warranty period for this product?
A: We offer a standard one-year warranty, with extended warranty options available upon request.

Q4: Does Shaanxi Huadian provide technical support?
A: Yes, we provide full technical support, including installation guidance and after-sales service.

Q5: Is it possible to order custom configurations of this switchgear?
A: Absolutely. Our OEM services allow for custom configurations based on your specific project needs.

Our Factory and Certificates
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Contact Us

For more information of SRM □-12 fully sealed and fully insulated inflatable ring network switchgear or to place an order, please contact us at:
Email: austinyang@hdswitchgear.com/rexwang@hdswitchgear.com/pannie@hdswitchgear.com

Phone: +86 0917-6735 959
We look forward to working with you to meet your power distribution needs!

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