Switchgear MV AIS – Normal Clad
Medium Voltage AIS Metal Clad Switchgear - NORMAL CLAD - Special features up to IP65. Air Insulated (AIS) switchgear, fitted with metallic segregated compartments and withdrawable main components (circuit breaker, voltage transformers, protection relays). It is designed for primary distribution grids and can be supplied as standard or Internal Arc-Classified IAC AFLR. For outdoor use (mines, Oil & Gas) can be design in special features with a protection degree up to Ingress Protection IP 65 and configuration Duplex,Double Busbars Systems.
Technical features
Protection degree from IP4X for indoor applications, up to IP65 for outdoor applications
Simple or double busbar system, double top with two breakers and other customizable configurations available
Front access
Installation on base frame or on concrete basement
Operators’ safety during operations and maintenance according to Leg. Decree no. 81/2008 and legislation IEC 62271-200
Multi-brand air or SF6 gas insulated breakers applicated on withdrawable carriage
Withdrawable breakers and voltage transformers
Protection and control relay, and customized and settable digital counters
Standard or digital synoptic
Digital option to reduce wiring in order to maximize performance
SCADA system integration
Integration of thermal control system on bars and breakers, upon request
Integration of internal-arc protection systems, upon request
Integration of fast transfer systems, frequency and load-shedding control, upon request
Advantages
Tailor-made product
Interchangeable breakers
Remote control
Easy ordinary and extraordinary maintenance, thanks to front accessibility
High safety level for the operators involved
Short construction and delivery times
Applications
Oil & gas
Railway sector
Naval sector (installations)
Smart grid
Utility on primary distribution grids
Mobile substations
Photovoltaic plants
Wind power stations
Hydroelectric power stations
Other electric energy generation plants
Data Sheet Normal Clad
-
-
Rated Voltage
-
-
-
kV
-
-
-
12
-
-
-
17,5
-
-
-
24
-
-
-
36
-
-
-
40,5
-
-
-
Rated Voltage insulation
-
-
-
kV (1min)
-
-
-
28
-
-
-
38
-
-
-
50
-
-
-
70
-
-
-
85
-
-
-
Impulse Test Voltage (BIL)
-
-
-
kV
-
-
-
75
-
-
-
95
-
-
-
125
-
-
-
170
-
-
-
200
-
-
-
Main busbar rated current
-
-
-
A
-
-
-
Up to
4000
-
-
-
Up to
4000
-
-
-
Up to
3600
-
-
-
Up to
3150
-
-
-
Up to
2500
-
-
-
Main bars rated current
-
-
-
A
-
-
-
1250
-
2000
-
2500
-
3150
-
3600
-
4000
-
-
-
1250
-
2000
-
2500
-
3150
-
3600
-
4000
-
-
-
1250
-
2000
-
2500
-
3150
-
-
-
1250
-
2000
-
2500
-
3150
-
-
-
1250
-
2000
-
2500
-
-
-
Short time rated current
-
-
-
kA (3s)
-
-
-
up to
50
-
-
-
up to
50
-
-
-
up to
40
-
-
-
up to
40
-
-
-
up to
31.5
-
-
-
Rated frequency
-
-
-
Hz
-
-
-
50-60
-
-
-
50-60
-
-
-
50-60
-
-
-
50-60
-
-
-
50-60
-
-
-
IP Protection degree
-
-
-
-
IP4X*
-
-
-
IP4X*
-
-
-
IP4X*
-
-
-
IP4X*
-
-
-
IP41
-
-
-
Loss of service continuity (LSC)
-
-
-
-
LSC2B
-
-
-
LSC2B
-
-
-
LSC2B
-
-
-
LSC2B
-
-
-
LSC2B
-
-
-
Arc-proof version IAC AFLR
-
-
-
kA (1s)
-
-
-
25
-
-
-
25
-
-
-
25
-
-
-
25
-
-
-
25
-
Up to IP65, upon request
Up to IP65, upon request
Related projects to Switchgear MV AIS – Normal Clad
Normal Clad switchgears 24kV IP65 for Mine
Yauyos (Perù)
The project has the aim to increase the electrical grid of a mine located in the province of Yauyos (Peru) and it has involved the design, construction and supply of n. 7 medium-voltage (MV) Normal Clad switchgear cubicles 24kV 630A 31.5kA and 17.5kV 1250A 31.5kA, with IP65 protection degree, an auxiliary transformer 12600/230V 10kA, materials and accessories necessary for the start-up of the plant.
MV E-House 36kV for electrical grid
Tripoli (Libya)
The project has included the design and construction of n. 3 compact STC-Box substations, aiming to increase electrification in Libya.
