General instructions
Recommended sequence of operations
IG-136-EN version 10; 23/06/2016
36
cgm.3 system
Fully SF6 gas insulated medium voltage switchgear up to 40.5 kV in accordance with IEC Standards
Comparison of balanced phases
Figure 5.5 There is NO indication in the comparator.
Comparison of unbalanced phases
Figure 5.6 YES, there is indication on the comparator
5.4 Feeder function
5.4.1 Mimic diagram
a
ekor.sas, acoustic earthing prevention alarm
b Pressure gauge window
c
Voltage presence indicator ekor.vpis or ekor.ivds
d
Operation area:
• GREY for switch-disconnector
• YELLOW for earthing switch
e
Status indicators
• BLACK for switch-disconnector
• RED for earthing switch
f Driving shaft access handles
Figure 5.7 Mimic diagram of cgm.3. -l