Distribution / Control High Voltage Switchgear Gis 40.5kv Metal Mounted
GIS 40.5kV Metal - Mounted Gas Insulated Distribution & Control Switchgear
General:
XGN49Series lndoor Gas lnsulatlon MetaI-clad Switchgear(hereinafter called C-GlS)is a high quality product which the China power industry federation sole recommends technology from Korea Rijin electrical equipment industry corporation and it meets Chinese standards of GB/T11022-1999 and GB3906-2006C-GlS,has the characteristics of high reliability,free from maintenance and small cover area.
Purpose:
The GIS is suitable for power plant, substation, combined substation and electric power system, which is three phase indoor AC single busbar and sectioning single busbar with 50Hz, 35kV rated voltage, used to control, accept and distribute electric power.
Service ambient conditions:
1. Air temperature: Max: +40, Min: -25 (average is not more than 35 in 24 hours)
2. Altitude above sea level: <= 5000m
3. Air humidity:
The average relative humidity measured in 24 hours is not more than 95%,
The average relative humidity per month is not more than 90%,
average water vapor pressure measured in 24 hours is not more than 2.2kPa,
average water vapor pressure per month is not more than 1.8 kPa.
4. Without frequent heavy vibration.
Parameters :
| Name | Unit | Parameters | |
| Rated Voltage | kV | 24 | |
| Rated Current | A | 1250 2000 2500 | |
| Rated Frequency | Hz | 50/60 | |
| Rated Power Frequency Withstand Voltage (1min) | Between Phases, Phase to Earth | kV | 65 |
| Insulation Distance | KV | 79 | |
| Rated Lightning Impulse Withstand Voltage | Between Phases, Phase to Earth | kV | 125 |
| To open gap | 145 | ||
| Secondary Circuit Power Frequency Withstand Voltage (1min) | V | 2000 | |
| Rated Short-circuit Breaking Current | kA | 20 25 31.5 | |
| Rated Short-circuit Making Current | kA | 50 63 80 | |
| Rated Short-time Withstand Current 4S | kA/S | 20/4 25/4 31.5/4 | |
| Rated Peak Withstand Current | kA | 50 63 80 | |
| Enclosure Protection Class (Air Inflation Shell/LV Cubicle) | IP67/IP4X | ||
| Main Circuit Resistance Each Phase | μΩ | ≤250 | |
| Rated Operating Pressure of SF6 Gas (Gage pressure for 20ºC ) | Mpa | 0.05 | |
| Minimum Operating Pressure of SF6 Gas (Gage pressure for 20ºC ) | Mpa | 0.03 | |
| SF6 Gas Annual Gas Leakage Rate | % | ≤0.5 | |
| Auxiliary Circuit Rated Operating Voltage | V | DC110/220,AC220 | |
| Enclosure Dimension (Width*Depth*Height) | mm |
600*1300*2350 (800*1600*2550) |
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