Product Introduction
Overview
• Cubicle-type Air Insulated Switchgear (C-AIS) is a metal-enclosed, compartmentalized medium-voltage assembly using air as the primary insulating medium. Circuit breakers, busbars, and instrument transformers are arranged in segregated steel compartments, supporting safe operation, straightforward inspection, and flexible configuration. It offers a proven, serviceable platform for primary distribution where maintainability and clear internal layout are important to asset owners.
Application
• Cubicle-type Air Insulated Switchgear is applied in primary substations, industrial plants, infrastructure, and commercial facilities requiring customizable configurations and clear compartment access. Typical roles include incomer, feeder, bus-coupler, and metering panels in radial or ring networks. It suits projects prioritizing ease of modification, extension, and on-site maintenance while meeting IEC/IEEE requirements for medium-voltage distribution switchgear installations.
Technical
Advantages
• Key advantages include long-established technology, high customization capability, and convenient access to primary and secondary equipment. Compartmentalized metal-clad construction enhances safety during maintenance and helps contain internal faults, while draw-out or fixed breakers support different maintenance philosophies. Using air as insulation avoids special gas handling, simplifying procedures and reducing lifecycle complexity for utilities and industrial users.
Feature
• Typical C-AIS features segregated busbar, circuit-breaker, cable, and low-voltage compartments, with metal partitions and shutters between live parts. Available with fixed or withdrawable vacuum circuit breakers, integrated CTs/VTs, surge protection, and modern protection relays, it supports arc-resistant designs, front access, and modular cubicle lineups, enabling safe operation, flexible layouts, and compatibility with digital monitoring and automation systems.
Environmental Conditions
• Ambient temperature:-30℃ ~ +50℃;
• Ambient humidity: Daily average RH ≤ 90%;
• Monthly average RH ≤ 95%
• Altitude: Not exceed 2500m above sea level；
• No flammable, explosive, no serious pollution, no chemical corrosion and severe vibration.
• Ambient humidity: Daily average RH ≤ 90%;
• Monthly average RH ≤ 95%
• Altitude: Not exceed 2500m above sea level；
• No flammable, explosive, no serious pollution, no chemical corrosion and severe vibration.
