SF6 Ring Main Unit

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  • SF6 Ring Main Unit
  • SF6 Ring Main Unit

PRODUCTS DETAILS

RQRM6-12-24 series SF6 Gas-insulated metal-enclosed switchgear (GlS) is a new-model medium voltage ring switchgear developed by ROOQ Electric Group. The GIS is applicable to distribution devices of three-phase 50HZ and rated voltage of 12KV. It is widely used in industrial and civil cable ring nets and power supply terminals, especially applicable to the power systems of small size secondary distribution stations, on-off rooms, industrial and mining enterprises, urban communities, airports, rail way, tunnels, multi-storey buildings for power distribution.


Environmental conditions for Normal Use

1. Ambient temperatur: +40°C (maximum)to-40°C (minimum);

2. Ambient relative humidity: the average daily not more than95%, not more than 90% monthly;

3. Above sea I eve I:not more than 2000m;

4. Earthquake intensity:not to exceed magnitude 8;

5. The pIaces shall be without fire, the risk of explosion, chemical corrosion and fierce vibration.


Rated voltage

KV

12/24

Rated frequency

HZ

50

Rated current for ring loop

A

630

Rated current of fuse loop (Max.)


125

Rated active breaking current/breaking times

A/Times

630/20

Rated breaking current for cable charge/breaking tines

A/Times

40/20

Rated short-time withstand current
(main circuit and earthing circuit)

KA

20

Rated peak withstand current

KA

50

Rated short circuit duration

S

3

Rated short-circuit making current

KA

50

Rated transfer current

A

1750/1400

1min power-frequency withstand voltage:
Phase to phase, earth/ Across the isolating distance

KV

63/79

Lightning impact withstand voltage:
Phase to phase, earth/ Across the isolating distance

KV

125/145

Rated SF6 gas pressure (pressure from the meter at 20°C)
/ (minimum pressure)

MPa

0.04/0.02

Mechanical endurance (Load Switch/Earth Switches)

Times

5000/2000

Annua I leakage rate of SF6 gas


<0.025%

Protection Level

Gas compartment

IP67

Enclosure

IP3X



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