MVS SF6 - Medium Voltage Switchgear - Vision Group

MVS SF6 – Medium Voltage Switchgear

Products > Industry

The MVS SF6 VIPLUS (Medium Voltage Switchgear isolated in SF6) is tested and manufactured in accordance with NBR IEC 62271-200: 2007. It has a certificate of resistance to internal arc of all the functional units (bar, maneuver and connection compartments). The certificate was issued by CEPEL, a laboratory accredited by ABNT.

The panel has internal metal partitions corresponding to type LSC2B-PM, divided into the following compartments:

    Switchgear compartment (circuit-breaker, vacuum contactor or disconnector)
    Bar Compartment
    Connection compartment
    Low Voltage Compartment

The Switchgear are separated from each other by metal barriers and closed at the bottom by sheet metal to access the cable compartment. All are equipped with devices that safely allow over-pressure relief.

Circuit breakers can be fixed or withdrawable. Withdrawable, movement between the “inserted”, “test” and “withdrawn” positions is performed with the breaker door closed.

They have, as accessories, a grounding switch fully interlocked with the door and with the circuit breaker, voltage presence detector in the three phases, removable TPs (in cart), temperature monitor (thermography) and flash detector.

Main Features

    Voltage class up to 24 kV at 60 Hz or 50 Hz
    Rated bus current up to 4,000 A
    Short-circuit current of short duration up to 40 kA
    Degree of protection IP-4X or higher (on request)
    NBR IEC 62271-200 Standard

Basic data:

Maximum operating voltage [kV]
7,2
12
15
17,5
24
Standby voltage (1min.) 60 Hz [kV]
20
28
34
38
50
Rated impulse voltage atm. [kV]
60
75
95
95
125
Short-time withstand current (1s) [kA]
31,5
31,5
31,5
31,5
25
Rated bus current [A]
2.500
2.500
2.500
2.500
2.500