Ormazabal cgm.3-2lp User Manual

General description
General Instructions
IG-136-EN version 10; 23/06/2016
11
cgm.3 system
Fully SF6 gas insulated medium voltage switchgear up to 40.5 kV in accordance with IEC Standards
1.4 Characteristics table
Rated voltage [kV] 36 38.5 40.5
Frequency [Hz] 50 / 60
Rated current [A]
Busbars and cubicle interconnection 400 / 630 630
Feeder 400 / 630 630
Output to transformer 200 200
Rated short-term withstand current [kA]
With t
k
= (x) s
16 / 20* (1 / 3 s)
25 (1 s)
20* (1 / 3 s)
25 (1 s)
Peak value 40 / 52* / 62.5 52* / 62.5
Rated insulation level [kV]
Industrial frequency rated withstand voltage (1 min) 70 / 80 80 / 90 95 / 118
Lightning impulse rated withstand voltage 170 / 195 180 / 210 185 / 215
Internal arc in tank
Front accessibility 16 / 20* kA (0.5 s) 20* kA (0.5 s)
Front and side accessibility 16 / 20* / 25 kA (1 s) 20* / 25 kA (1 s)
Front, side and rear accessibility*** 16 / 20* / 25 kA (1 s) 20* / 25 kA (1 s)
Internal arc classification in accordance with
IEC 62271-200
IAC AF/AFL
16 / 20* / 25 kA (1 s) 20* / 25 kA (1 s)
IAC AFLR 16 / 20* / 25 kA (1 s) 20* / 25 kA 1 s
Protection grade: Gas tank IP X8
Protection grade: External enclosure IP 2XD
Standard unit colour [RAL] grey 7035 / blue 5005
Category of loss of service continuity [LSC] LSC2
Compartmenting class PM
(*) Tests conducted with current 21 kA/54.6 kA
(**) With gas exhaust upwards via the chimney
The values set out in this table are general
for the cgm.3 system and are only valid once
conrmed by Ormazabal. Some cubicle
models can withstand partial values. For more
detailed information, check the table for each
cubicle model in the CA-112 catalogue by
Ormazabal.

Ormazabal cgm.3-2lp Specifications

General

Brand	Ormazabal
Model	cgm.3-2lp
Category	Industrial Electrical
Language	English