RME is an indoor gas-insulated switchgear for voltages up to 20 kV, designed for installation in distribution networks.
Constructive solutions
The RME consists of:
- Stainless steel housing filled with SF6 (at an overpressure of 0.23 bar) and "sealed" for the entire service life, inside which busbars and main circuits are installed, such as as a switch, a load switch, and a grounding disconnector;
- From one to four cable compartments for connecting to the line or to the transformer;
- A plastron with a mnemonic diagram and controls, as well as a secondary circuits compartment;
- Hand or motorised drive compartment;
- Grounding circuits with visible grounding contact position
Characteristics
|
Ambient temperature
|
-25...+40 |
|
Frequency test 50 Hz, 1 min. (kV)
|
32, 42, 65 |
|
1.2/50 μs pulse voltage test (kV)
|
60, 75, 125 |
|
Tank (kA)
|
20, 1s |
|
Cable compartment (kA)
|
16, 1s |
|
Reinforced cable compartment (kA)
|
20, 1s |
|
Rated current (A)
|
630, 630, 400-630 |
|
Tripping currents (A). Load current
|
630, 630, 400-630 |
|
Tripping currents (A). Closing current
|
95, 95, 95 |
|
Tripping currents (A). Cable idle current
|
30, 30, 30 |
|
Ratedshort-time withstand current (kA, act.,3 s.)
|
20, 20, up to 20 |
|
Trippingcurrentofloadbreakers and earthingdisconnectors (kA, inst.)
|
51, 51, up to 51 |
|
Rated current (A)
|
630, 630, 630 |
|
Tripping current (kA)
|
20, 20, up to 20 |
|
Switch-on current (kA, inst.)
|
51, 51, up to 51 |
|
Rated current (A)
|
200, 200, 200 |
|
Tripping current (kA)
|
20, 20, 16 |
|
Switch-on current (kA, inst.)
|
51, 51, 41 |
Catalogs & Documentation