Product Overview
The product is a 40.5kV indoor metal-clad withdrawable air-insulated switchgear, suitable for a three-phase AC 50Hz single-bus sectional system, including 630~4000A ratings. It is equipped with E-VAC withdrawable vacuum circuit breakers, which are suitable for receiving and distributing electric energy in power grids, substations, industrial or mining enterprises and commercial buildings to realize the control, protection and monitoring of distribution circuits. ET2 switchgear has a compact structure, which has been fully verified by type tests, and has been optimized in terms of safety, reliability, cost-effective and high efficiency.
Basic Structure
The switchgear is divided into four compartments of busbar, circuit breaker, cable and low voltage components. The cabinet is a modular structure, which can ensure the strength and accuracy of the switchboard. The interfaces available on both sides of the panel for conveniently expansion of the existing system.
Service Environment
Indoor installation and normal conditions:
● Ambient temperature -25°C – +40°C, daily average temperature does not exceed 35°C;
● humidity conditions: daily average relative humidity ≤95%, monthly average relative humidity ≤90%;
● The surrounding air is not significantly polluted by dust, smoke, corrosive and flammable gas, steam or salt pollution;
● The altitude is not more than 1000m;
● The seismic intensity is not more than 8 degrees;
● The amplitude of electromagnetic interference induced in the secondary system should not exceed 1.6kV.
When the service conditions exceed IEC standards and the above regulations, please contact Eaton for confirmation.
Safe and Reliable
● Complete metal-enclosed structure to prevent the entry of dirt and small animals
● Individual compartment with separate pressure relief channel
● Earthing switch with short-circuit making capability
● Mechanical and electrical interlock effectively prevent maloperation and access into the live compartment
● Operation only on completely closed-door condition protects the personal safety
● Up to AFLR 31.5kA 1s IAC class
● Fully third-party test certification
