• SF6-free air-insulated switchgear for secondary distribution
SF6-free air-insulated switchgear for secondary distribution
discuss personally
Model
UniSec Air-24
Basic info
Brand ABB
Model NO. SF6-free air-insulated switchgear for secondary distribution
Rated voltage 24kV
Rated frequency 50/60Hz
Series UniSec Air
Product Detail

Description:

UniSec Air is a medium voltage switchgear designed for secondary distribution up to 24kV, 630A, 20kA. It contains GSec Air, three-position load break switch or disconnector and earthing switch. This new component has a shunt vacuum interrupter for breaking capacity, dry air as the insulation medium, and a global warming potential (GWP) of zero. The switchgear also contains a vacuum circuit breaker and is fully compliant with IEC standards and the U F-gas regulation (EU) 2024 / 573. 
The switchgear is based on a highly flexible and modular  concept with standardized solutions that can be  readily configured to meet the specific needs of each application. UniSec Air is fully tested according to IEC standard 62271-200. 
UniSec Air is internal arc classified, IAC A FLR up to 20 kA, assuring safe operations for technicians when standing in  front of the switchgear. Robust control and protection, metering, monitoring, and diagnostics suitable for various applications are also available. 
UniSec Air is designed with a refined interface and with  the same footprint, operations, and backward compatibility as the original UniSec switchgear,facilitating integration into existing systems and extensions of the installed base.

Customer benefits:

F-gas regulation compliance 

  • Fully compliant with the EU F-gas regulation (EU) 2024 / 573

  • GWP of 0

Flexible and modular design

  • Better accessibility to MV cable connection and simplified installation, use, and maintenance.

  • Wide range of functional units equipped with LBS and disconnector, circuit breaker, conventional measuring transformers, current and voltage sensors, and protection relay solutions, making it suitable for most indoor applications.

  • Provides flexibility for a high level of customization to meet demanding requirements and is easy to order thanks to user-friendly configurator tools.

  • Compact design with multiple functional units width 375, 500 and 750mm for installation in a wide variety of electrial rooms and layouts.

  • Backward compatibility between UniSec Air and UniSec allows for easy integration into existing systems and extensions of the installed base.

 Safe and Reliable

  •  Internal arc classification available with various gas exhaust variants  for enhanced safety.

  • Service continuity solutions LSC2B / LSC2A / LSC2 tailored for application needs, ensuring minimal service interruption.

  • High operator safety features an internal arc-proof design and a wide range of mechanical and electrical interlocks to enhance operator safety.

  • The GSec Air component has an internal volume of less than 25 liters.

  • Fast and dependable delivery times with pre-engineered just to install (JTI) switchgear solutions.

Main Technical Characteristics:

 GSec Air:

 

Know your supplier
ABB
As an authorized distributor of ABB products, we take great pride in our partnership.
Main Categories
High voltage/Low voltage
Business Type
Sales
Highest Annual Export (USD)
$580000000
Professional Experience
11 years
Workplace
20000m²
占位
占位
Documents
Public.
SF6-free air-insulated switchgear for secondary distribution
Manual English
PDF
FAQ
Q: What standards and certifications that ABB’s medium voltage switchgear products comply with?
A: Our medium voltage switchgear products comply with international standards such as IEC 62271, GOST, GB/DL. They are also certified by leading industry bodies to ensure the highest levels of safety and performance. ABB also offers medium voltage switchgear products for ANSI standards.
Q: What’s the difference in the circuit breaker for air-insulated vs gas-insulated?
A: Air-insulated switchgear circuit breaker is typically removable or withdrawable. The circuit breaker is based on vacuum circuit technology. In the gas-insulated, it is fixed mounted. The function of withdraw is provided by a separate disconnecting switch. Typically, a three-position switch with connected, disconnected, and ready-to-earth position.
Related Products
Related Knowledges
Application of Pre-integrated Prefabricated Substations in Renewable Energy Sector
Application of Pre-integrated Prefabricated Substations in Renewable Energy Sector
Against the backdrop of profound changes in the global energy landscape and the booming development of the new energy industry, the construction mode of traditional substations struggles to meet the rapid deployment needs of new energy projects. The modular intelligent prefabricated cabin substation, leveraging its innovative advantages, has become a key direction for optimizing the new energy power system. In - depth exploration of its technical principles, industry adaptability, and applicatio
Echo
06/13/2025
Research on Reliability Enhancement Scheme Implementation for Modular Intelligent Prefabricated Substations
Research on Reliability Enhancement Scheme Implementation for Modular Intelligent Prefabricated Substations
1 Implementation Strategies for the Scheme1.1 Deepen Survey and ResearchBefore constructing prefabricated cabin - type substations, it is necessary to conduct detailed surveys of local working conditions, clarify the construction scale and objectives, evaluate existing power facilities, plan projects, make up for infrastructure shortcomings, and adjust the construction rhythm. Meanwhile, control costs to avoid project suspension.1.2 Strengthen Structural ConstructionDuring promotion, multi - dim
Echo
06/13/2025
Comparative Analysis of 500 kV Prefabricated Substations vs. Conventional Substations
Comparative Analysis of 500 kV Prefabricated Substations vs. Conventional Substations
The secondary equipment area of conventional substations uses reinforced concrete or prefabricated steel structures, facing issues like long construction cycles, unreasonable functional zone design, strict environmental assessments, dust, noise, and disturbances. Primary and secondary equipment can only be installed after civil works and decoration, lowering construction efficiency.Prefabricated cabin substations integrate modularity, intelligence, and cost - effectiveness, boasting green, energ
Dyson
06/13/2025
Operational Analysis of Prefabricated Enclosure Substations in Extreme Cold Climate Applications
Operational Analysis of Prefabricated Enclosure Substations in Extreme Cold Climate Applications
Under global climate diversity, alpine power construction faces technical and environmental challenges. Extreme climates, complex geology, and long - term low winter temperatures, along with ice, snow, and storms, strain electrical equipment stability and power facility construction (schedule, cost, maintenance). Traditional on - site substations, with long construction and poor adaptability, can’t meet alpine regions’ fast, stable power needs.Prefabricated cabin substations, as modu
Echo
06/13/2025
Implementation of Precast Foundations for Ring-Main Unit Compact Substations in Grid Modernization Initiatives
Implementation of Precast Foundations for Ring-Main Unit Compact Substations in Grid Modernization Initiatives
Compact substation boxes, with advantages like safe operation, high reliability, and easy maintenance, are used in urban grid construction/renovation. Structurally divided into American - style (high - cost, noisy, low - efficiency, gradually phased out) and European - style (large - sized but more advantages, still popular).To address their pros/cons, ring - network prefabricated ones were developed.I. Basic Materials for Prefabricated Compact Substation BoxesMaterials need hardness, strength,
Echo
06/13/2025
The design of the three-purpose grounding transformer
The design of the three-purpose grounding transformer
Underground Power Cable Transmission LinesDirect - buried power cable lines have large ground - distributed capacitance, causing high single - phase - to - ground short - circuit capacitive current. For 10 kV lines, if this current exceeds 10 A, arcs hardly self - extinguish, risking arc overvoltage and endangering line equipment. Arc extinction is thus necessary. With a Dyn - connected main transformer, an arc - suppression coil on the secondary neutral point suffices. For Yd - connected ones,
Dyson
06/12/2025
×
Inquiry
Download
Experts Electrical is dedicated to serving the personnel in the global power industry.
Join Experts Electrical, not only can you discover power equipment and power knowledge, but also canhnd like - minded friends!
商品视频播放