Secondary switchgear SNC Series

medium-voltageswitchingSF6

Aktif SNC series Medium Voltage Metal Clad Switchgear is the switching and control cubicle which is manufactured uop to 36 kV , 4000 A, 40 kA/3s electrical specifications according to IEC 62271-200 and TEDAŞ regulations. SNC series Metal Clad Switchgears have LSC-2B service continuity, PM partition class, AFLR internal arc classification, IP 4X protection class. SNC series Metal Clad Switchgears are produced in 2 types: • SNC-1 withdrawable circuit breaker • SNC-2 withdrawable circuit breaker and withdrawable voltage transformer Metal Clad Switchgears consist of 4 independent compartments for SNC-1 type, 5 independent compartments for SNC-2 type. • Low Voltage Compartment : This compartment contains all secondary circuits for measurement, protection, control, monitoring, communication and other associated systems. • Busbar Compartment : This compartment contains electrolytic copper busbars according to rated current. Access to busbar compartment is possible with special safety procedures and tools. • Switching Compartment : This section contains the following equipment in accordance with the project requirments. – Front mechanism SF6 gas or vacuum circuit breaker, – Withdrawer unit, – Automatic shutters for busbar and cable connections, – Mechanical interlocks between circuit breaker, withdrawer unit, shutter and door. • Cable Compartment : This compartment contains of instrument current, voltage transformers, surge arrestor, AktifSES series earthing switch, capacitive voltage divider, cable gland and fittings.