Eaton RVAC - Page 12

Instruction Leaflet IL0102002E
Effective April 2018
Ring Main Unit Operation Instruction
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12 EATON CORPORATION www.eaton.com
1. Voltage presence indicator;
2. Meters;
3. Electric operating button and status indicating light;
4. Fault indicator;
5. Ground switch operating hole;
6. Loads switch status indication;
7. Ground switch status indication;
8. Cable compartment door interlocking device;
9. Load switch operating hole;
10. Main circuit mimic line;
11. SF6 gas pressure meter;
12. Combination unit manual release button;
13. Fuse status indication;
14. Fuse mimic line;
Figure 8
7.2.7. Simple and reliable operating interface
The operating mechanism has position indicator and mechanical
interlocking devices, with optional auxiliary contact, opening coil,
and electrical operating device, as shown in Figure 8.
7.2.8. Fuse Tube
The fuse tube mainly includes two parts: epoxy insulating tube and
locking plug, both of which are used to install and secure the fuse.
The epoxy insulating tube is installed on the sealed housing, itself
offering gas sealing feature to ensure the sealing performance of
the gas-filled housing. The fuse is secured on the locking plug with
screws, offering reliable insulation with close cooperation of the
silicone rubber locking plug and the epoxy insulating tube.