Ningbo Tianan (Group) Co.,Ltd.
Ningbo Tianan (Group) Co.,Ltd
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High Voltage Switchgear / 33kV 1250A GIS SF6 Gas Insulated Switchgear
Overview:
XGN49 series indoor gas lnsulatlon metaI-clad Switchgear 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.
Quick parameters:
| Rated voltage | 40.5kV |
| Rated frequency | 50,60Hz |
| Rated current | 1250A |
| Rated short circuit breaking current | 25, 31.5,40kA |
| Rated making current | 50, 63, 80kA |
| I min power frequency withstand voltage | 95kV ( phase to phase, phase to earth) |
| 118kV (betwwen isolating clearnace) | |
| Rated lightning impulse withstand voltage | 185kV ( phase to phase, phase to earth) |
| 215kV (betwwen isolating clearnace) | |
| Degree of protection | IP67( gas-filled compartment) IP4X (LV compartment) |
Service ambient condition:
Air temperature: Max: +40, Min: -25 (average is not more than 35 in 24 hours)
Altitude above sea level: <= 3000m
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.
Without frequent heavy vibration
The range of induction electromagnetic interference of secondary system is not more than 1.6kV
Conditions excluded from above are in need of negotiating with the manufacturer.
Ordering Notice:
Please provide these following materials while ordering:
A. Scheme number of major loop and single wire system diagram, pareto diagram;
B. Layout wiring diagram of secondary loop, terminal pareto diagram;
C. Type, specification, quantity of electric components inside the switchgear;
D. If without any request for the material and specification of busbar from customers, they come up with manufacturer'requirement;
E. If the switchgear is used in special environmental condition, it should be marked while ordering;
F. If without any request, the switchgear colour is up to the manufacturer'standards;
G. Stored energy, control, voltage of signal power supply of the auxiliary circuit;
H. Usage of each side of GIS;
I. Variety and quantity of spare parts and accessories needs.
