General Instructions
General description
cgmcosmos
system
Medium voltage switchgear and control gear, fully insulated in SF
6
gas up to 24 kV with external cable test device
IG-257-EN version 01; 03/02/2016
4
1 General description
The
Ormazabal
cgmcosmos
system with
external test
cable device
is designed according to the requirements
indicated by the regulations of the International
Electrotechnical Commission (IEC), it is composed of
various models of single and multi-functional switchgear,
fully insulated in SF
6
gas, to configure different diagrams
of secondary electrical distribution in medium voltage to
24 kV
[2]
.
1.1 Models
Single-functional switchgear
and control gear
Function
cgmcosmos
-l
Feeder
cgmcosmos
-v
Vacuum circuit-breaker
Multi-functional switchgear
and control gear
Functions
cgmcosmos
-2lv
Two feeder functions and one vacuum cutting circuit-breaker function
1.2 Applicable standards
Standard
Description
IEC 62271-1
Common specifications for high-voltage switchgear and controlgear standards
IEC 62271-100
SANS 62271-100
High voltage alternating current circuit-breakers.
IEC 62271-102
SANS 62271-102
Alternating current disconnectors and earthing switches
IEC 62271-103
SANS 62271-103
High voltage switches for rated voltages above 1 kV up to and including 52 kV
IEC 62271-202
SANS 62271-202
High/low voltage prefabricated transformer substations
IEC 62271-200
SANS 62271-200
A.C. metal-enclosed switchgear and controlgear for rated voltages above 1 kV and up to and
including 52 kV
SANS 1874/ NRS 006
Switchgear-metal-enclosed ring main units for rated AC voltages above 1 kV and up to and
including 36 kV
IEC 61243-5 /62271-206
SANS 61243-5
Voltage presence indicating systems
IEC 60529
SANS 60529
Degrees of protection provided by enclosures (IP Code)
[2]
[2] More information in
www.ormazabal.com
Summary of Contents for cgmcosmos-2lv
Page 47: ......
