Air-insulated switchgear (AIS)

 Connecting and protecting an evolving grid.

ABB’s medium voltage switchgear (1 kV to 52 kV according to the IEC standards) are designed to connect and protect an evolving grid. Depending on the insulation medium that protect the energized components in the medium voltage switchgear, both primary and secondary medium voltage switchgear can be widely divided into: air-insulated and gas-insulated.

Air-insulated switchgear (AIS) offers a modular and flexible design that simplifies installation, use, and maintenance. It offers LSC2B/LSC2A/LSC2/LSC1, ensuring minimal service interruption and a high level of customization to meet global demanding requirements and can be typically found in all industries.

Whether customers choose air-insulated or gas-insulated switchgear depends on the application as well as on some aspects such as the initial investment cost, total cost of ownership, available space and location (ie. altitude, dust, etc.). We encourage you to get in touch with our sales experts to get the right advice.

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ABB’s air-insulated switchgear (AIS) portfolio

IEC / GB and other standards
ANSI standards

Related offering

FAQ


What are the key features of ABB’s medium voltage switchgear products?

ABB‘s primary medium voltage switchgear products are designed to connect and protect the evolving grid. They feature robust construction, advanced safety mechanisms, high reliability, and ease of maintenance. They are designed to handle high electrical loads and provide efficient power distribution with minimal losses.


What standards and certifications that ABB’s medium voltage switchgear products comply with?

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. 


What support and services does ABB provide for installation, commissioning, and after-sales maintenance?

ABB provides comprehensive support services including installation, commissioning, and after-sales maintenance. Our team of experts ensures smooth deployment and ongoing support to maximize the performance and longevity of our switchgear products.


What smart solutions are available for ABB’s AIS portfolio?

ABB’s switchgear smart solutions are designed to help our customers make data-driven decisions. Our customers can benefit from a wide range monitoring, diagnostic, automation and control features for their ABB’s air-insulated medium voltage switchgear. Contact our sales team to learn more about ABB’s smart solutions for each of our switchgear.

 


What’s the difference in the circuit breaker for air-insulated vs gas-insulated?

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.


What are the maintenance requirements associated with the air-insulated switchgear (AIS) vs gas-insulated (GIS)?

Gas-insulated switchgear requires very low maintenance as all high voltage parts are permanently protected in a gas tank from soiling, humidity, entry of foreign bodies and other environmental influences. Primary, the drives located outside gas compartment require inspection and maintenance. On the other hand, gas-insulated switchgear repair requires additional training (e.g. for gas works) and the replacement or parts may not be as easily. In the air-insulated switchgear visual inspection is recommended in regular intervals, maintenance of power parts is given in installation, operation and maintenance manual (1VLM000363).
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