IG-284-EN version 03; 06/05/2020
9
General Instructions
cgm
.800: Medium-voltage switchgear with integrated insulation in SF
6
gas
up to 36 kV in accordance with IEC Standard with rated current up to 800 A
General description
1.4. Characteristics table
Rated voltage [kV]
24
36
Frequency [Hz]
50
60
50
60
Rated current [A]
Busbars and cubicle interconnection
800
Feeder
800
Transformer output
200
Rated short-time withstand current [kA]
With t
k
= 1 s
20*/25
With t
k
= 3 s
25
Peak value
40/50/62.5
41.6/52/65
40/50/62.5
41.6/52/65
Rated insulation level [kV]
Rated power frequency withstand voltage (1 min)
50/60
70/80
Rated lightning impulse withstand voltage
125/145
170/195
Internal arc in tank
Front accessibility
20*/25 kA (0.5 s)
Front and side accessibility
20*/25 kA (1 s)
Front, side and rear accessibility**
20*/25 kA (1 s)
Internal arc classification according to IEC 62271-200
IAC AF/AFL
20*/25 kA (1 s)
IAC AFLR
20*/25 kA (1 s)
Degree of protection: Gas tank
IP X8
Degree of protection: External enclosure
IP 2XD
Standard unit colour [RAL]
7016/7001
Category of loss of service continuity [LSC]
LSC2
Compartmenting class
PM
* Tests conducted with current 21 kA/54.6 kA
** With upwards gas relief via the duct.
Table 1.5.
Characteristics
The values set out in this table are general for the
cgm
.800 system and are only valid when confirmed
by
Ormazabal
. Some cubicle models can withstand
partial values. For more detailed information, check
the table for each cubicle model in
Ormazabal
's
CA-126
catalogue.
Summary of Contents for velatia cgm.800
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