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10kV (Dual Circuit) Normal Pressure Sealed Air-Insulated Switchgear / Ring Main Unit

  • 10kV (Dual Circuit) Normal Pressure Sealed Air-Insulated Switchgear / Ring Main Unit

Key attributes

Brand ROCKWILL
Model NO. 10kV (Dual Circuit) Normal Pressure Sealed Air-Insulated Switchgear / Ring Main Unit
Rated voltage 12kV
Rated frequency 50/60Hz
Series XGN

Product descriptions from the supplier

Description

Description

The 10kV Normal Pressure Sealed Air-Insulated Switchgear / Ring Main Unit (Dual Circuit) is an advanced medium-voltage power distribution device designed for dual-loop power supply systems. Operating at a rated voltage of 10kV, it adopts a normal-pressure sealed structure with air as the insulating medium, eliminating the need for SF₆ gas or other pressurized insulating materials. This switchgear integrates the functions of power distribution, protection, and control, making it suitable for scenarios requiring reliable dual-circuit power supply, such as industrial parks, urban distribution networks, high-rise buildings, and key infrastructure.

Key Features

  • Normal Pressure Sealed Design: Operates at atmospheric pressure with a hermetically sealed enclosure, preventing leakage risks associated with pressurized systems and ensuring stable insulation performance over long-term use.

  • Air Insulation: Utilizes air as the insulating medium (no need for gas treatment or refilling), reducing environmental impact and maintenance costs while meeting eco-friendly standards.

  • Dual Circuit Capability: Supports two independent power supply loops, enabling seamless switching between circuits to enhance power supply reliability and minimize downtime in case of single-loop faults.

  • Compact and Space-Saving: Optimized structure with a smaller footprint compared to traditional switchgears (similar in size to conventional pressurized models), ideal for installations with limited space.

  • High Safety and Reliability: Equipped with reliable mechanical interlocks and anti-misoperation mechanisms; all live components are enclosed to protect against moisture, dust, and corrosion, ensuring stable operation in harsh environments.

  • Low Maintenance: Simplified operating mechanism with a long mechanical life (up to 10,000 operations), reducing the need for frequent inspections and on-site maintenance, thus lowering operational costs.

  • Standardized Expansion: Designed for easy on-site installation and modular expansion, allowing quick integration into existing power grids and minimizing power outage time during upgrades.

Name

Unit

Parameter Value

Rated Voltage (Ur)

kV

12

Rated Frequency (fr)

Hz

50/60

Rated Current (Ir)

A

630

Short - time Power Frequency Withstand Voltage (Ud)

Between Fractures

kV

48

Between Phases

kV

42

Phase to Ground

kV

42

Lightning Impulse Withstand Voltage (Up)

Between Fractures

kV

95

Between Phases

kV

75

Phase to Ground

kV

75

Rated Short - time Withstand Current (Ik)

kA

20/25

Rated Short - circuit Duration (tk)

s

4

Rated Peak Withstand Current (Ip)

kA

50/63

Rated Short - circuit Breaking Current (Isc)

kA

20/25

Rated Short - circuit Making Current (Ima)

 

Vacuum Interrupter

kA

50/63

Earthing Switch



Auxiliary Circuit and Control Circuit

Rated Voltage (Ua) DC/AC

V

≤400

Power Frequency Withstand Voltage (1min)

V

2000

Mechanical Life

 

Circuit Breaker

Times

10000

Disconnecting Switch

Times

3000

Earthing Switch

Times

3000

Electrical Life  

Circuit Breaker

Class

E2

Earthing Switch

Class

E2

Protection Grade of Cabinet Enclosure


IP4X

Protection Grade of Sealed Box


IP65

FAQ
Q: Do environmentally friendly cabinets have self-healing ability after insulation breakdown?
A:
Gas-insulated environmentally friendly cabinets have certain self-healing ability. When insulation breakdown occurs due to transient overvoltage, the insulating gas (dry air, N2) molecules can recombine to restore insulation performance after the fault is removed, without permanent damage. However, solid-insulated eco-friendly cabinets do not have self-healing ability; insulation breakdown will cause permanent damage and require component replacement.
Q: In which scenarios are environmentally friendly cabinets commonly used? (e.g., urban distribution network, industrial park)
A:
They are widely used in urban distribution networks, new residential communities, industrial parks, data centers, airports, railways, and alpine/humid coastal areas. They are especially suitable for environmentally sensitive areas (e.g., scenic spots, ecological reserves) and projects with strict environmental protection requirements (e.g., green buildings, low-carbon industrial parks) due to their eco-friendly characteristics.
Know your supplier
Online store
On-time delivery rate
Response time
100.0%
≤4h
Company overview
Workplace: 108000m²m² Total staff: 700+ Highest Annual Export(usD): 150000000
Workplace: 108000m²m²
Total staff: 700+
Highest Annual Export(usD): 150000000
Services
Business Type: Design/Manufacture/Sales
Main Categories: High Voltage Electrical Apparatus/Electric transformer
Whole life care manager
Whole-life care management services for equipment procurement, use, maintenance, and after-sales, ensuring safe operation of electrical equipment, continuous control, and worry-free electricity consumption.
The equipment supplier has passed platform qualification certification and technical evaluation, ensuring compliance, professionalism, and reliability from the source.

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