24kV 40.5kV 27.5kV SF6 Gas Insulated Metal-clad Switchgear

Description：

SF6 Gas Insulated Metal-clad switchgear, RGIS-G20 designed up to 40.5kV 3-phase 3 wire 50/60 Hz system.The switchgear shall be rated up to 40.5kV and has horizontally or Vertically installed vacuum circuit breakers.The switchgear includes vacuum circuit breakers,meters, relays, etc.

Feature：

• Compactness

• Automation

• HighReliability and Safety

• Easy Expansion

• Simple Installation

• Economy.

Environmental Qualification:

The switchgear equipments is evaluated by optimum analysis and test for easy maintenance and long lifetime. Hermetically sealed primary enclosure for protection against environmental conditions (dirt,moisture, vermins, insects and high altitudes).

Technical parameters:

RGIS-G20 Switchgear:

RGIS-G20 series gas insulated metal-clad switchgear are applied to single bus system merely, voltage class up to 40.5kV. Voltage transformer and surge arrester used for main bus could be well arranged in one panel, be easy to maintenance.

RGIS-G80 Switchgear:

RGIS-G80 series gas insulated metal-clad switchgear applicable to single or double bus system can carry out the combination of various schemes. The application of plug-in technology which makes voltage transformer and surge arrester arranged in incoming panel or surge arrester arranged in feeder panel.That could save the space sharply.

RGIS-G90 Switchgear:

What are the technical parameters of SF6 gas-insulated metal armored switchgear?

Rated Voltage:

• Common rated voltage levels include 12kV, 24kV, and 40.5kV, and can be selected based on the voltage level of the power system and application requirements.

Rated Current:

• The range of rated current values is broad, typically from a few hundred amperes to several thousand amperes, such as 630A, 1250A, 1600A, 2000A, 3150A, etc. The specific value depends on the size of the connected load and the capacity requirements of the power system.

Rated Short-Circuit Breaking Capacity:

• Typically ranges from 20kA to 50kA. This parameter reflects the switchgear's ability to interrupt short-circuit currents. The rated short-circuit breaking capacity must be greater than the maximum possible short-circuit current in the power system to ensure reliable interruption of fault currents during a fault, preventing the accident from escalating.

Gas Pressure:

• The rated pressure for SF6 gas is generally between 0.03MPa and 0.16MPa. The actual operating pressure may be adjusted according to the specific requirements of the equipment and environmental factors such as temperature. During operation, it is necessary to monitor and control the gas pressure to ensure it remains within the specified range, thereby ensuring the insulation and arc-quenching performance of the equipment.