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10kV (Three Circuits) Normal Pressure Sealed Air-Insulated Switchgear / Ring Main Unit

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

Key attributes

Brand ROCKWILL
Model NO. 10kV (Three Circuits) 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 (Three Circuits) Normal Pressure Sealed Air-Insulated Switchgear / Ring Main Unit is a high-performance medium-voltage power distribution solution engineered to support three independent power supply loops. Operating at a rated voltage of 10kV, it features a normal-pressure sealed enclosure that uses air as the primary insulating medium—eliminating the need for SF₆ gas or pressurized systems. This switchgear integrates switching, protection, and control functions, making it ideal for scenarios demanding robust multi-loop power distribution, such as industrial complexes, urban substations, commercial hubs, and critical infrastructure requiring redundant power supply.

Key Features

  • Three-Circuit Configuration: Supports three separate power loops, enabling flexible power distribution, seamless load switching, and enhanced redundancy. This design minimizes downtime by ensuring continuity even if one loop requires maintenance or experiences a fault.

  • Normal Pressure & Air Insulation: Operates at atmospheric pressure with air as the insulating medium, eliminating risks of gas leakage, environmental pollution, or the need for gas refilling. This reduces long-term maintenance costs and aligns with eco-friendly standards.

  • Sealed Enclosure: A hermetically sealed structure protects internal components from moisture, dust, corrosive substances, and external debris, ensuring stable performance in harsh or variable environments (e.g., high humidity, industrial zones).

  • Compact & Space-Efficient: Optimized modular design with a reduced footprint compared to traditional multi-circuit switchgears, making it suitable for installations with limited space, such as urban substations or indoor distribution rooms.

  • High Safety & Reliability: Equipped with mechanical interlocks, anti-misoperation mechanisms, and visible isolation points to prevent accidental contact with live parts. The enclosed design also mitigates arc flash risks, enhancing operator safety.

  • Low Maintenance: Simplified mechanical components with a long service life (up to 10,000 operations) and no need for gas monitoring or refilling, reducing operational disruptions and lifecycle costs.

  • Scalable Integration: Compatible with smart grid systems, supporting remote monitoring and control. Its modular structure allows easy on-site installation and future expansion, adapting to evolving power distribution needs.

Name

Unit

Parameter Value

Rated Voltage (Ur)

kV

12

Rated Frequency (fr)

Hz

50

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: What is the IP protection level of general environmentally friendly cabinets?
A:
The standard IP protection level of general environmentally friendly cabinets is IP54, which can prevent dust accumulation and water splashing from all directions. For harsh environments (e.g., coastal areas with salt spray, dusty construction sites), high-protection cabinets with IP65 or above are available, which can completely prevent dust ingress and withstand low-pressure water jet washing.
Q: How does the short-circuit breaking capacity of environmentally friendly cabinets perform?
A:
The short-circuit breaking capacity of medium-voltage environmentally friendly cabinets (12kV) is usually 25kA-31.5kA, which meets the requirements of most medium-voltage distribution systems. They often use vacuum interrupters for arc extinguishing, which have excellent short-circuit breaking performance and can quickly cut off fault currents to protect the power grid and equipment. The breaking capacity is verified by type tests in accordance with IEC 62271-203 standards.
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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