Switchgear NEX

Main advantages

NEX is indoor, metal-enclosed switchgear designed for step-down and distribution substations, and also for distribution centers.

NEX integrates a host of innovative solutions designed around proven techniques and includes: high performance switchgear, digital protection, monitoring and control systems, enclosure capable of withstanding internal arcing.

NEX Cubicle corresponds to the requirements of IEC 60298.

Safety

General structure that allows gas evacuation through pressure relief flaps.Each compartment is designed with a specific chimney for upward gas evacuation.

Interlocking

The cubicle integrates the different interlocking to prevent incorrect operation by the operator.

NEX secures operation to:

access the cable compartment;
rack in and out;
operate the earthing switch;
open the CB door.

Technical characteristics

Name of parameter	Unit	Value
Rated operating voltage	kV	6	10
Maximum operating voltage	kV	7.2	12
Power frequency withstand voltage 50 Hz during 1 min	kV	32	42
Impulse value 1,2/50 mks	kV	60	75
Thermal resistance current	kА/3 s	25; 31.5
Electrodynamical resistance current	kА	62.5; 81
Busbars rated current	A	1250; 2500
Main circuits rated current	A	630; 1250; 2500
Internal arc resistance (option) IAC-AFLR	kA/0.5 s	25