8DN9 up to 245 kV
Gas-Insulated High-voltage Switchgear
Description
State-of-the-art performance and reliability requirements up to rated voltages of 245 kV are fully met by our 8DN9 type switchgear
It is one of the most compact designs available worldwide.
This compact design has been made possible by use of improved insulating materials, optimisation of the enclosure form and utilisation of computer-aided design methods in conjunction with modern casting techniques and improved manufacturing technology.
The 8DN9's
contribute to making this switchgear extremely economical.
Since the levels of noise and field emission (EMC) are extremely low, it is possible to integrate them even in sensitive environments, residential quarters and city centers.
By virtue of these characteristics, our 8DN9 switchgear fulfils all the requirements for environmentally compatible high-voltage switchgear.
Technical Data
Switchgear type | 8DN9 |
Rated voltage | 245 kV |
Rated frequency | 50/60 Hz |
Rated power frequency withstand voltage (1 min.) | 460 kV |
Rated lightning impulse withstand voltage (1.2/50 μs) | 1050 kV |
Rated switching impulse withstand voltage (250 /2500 μs) | 850 kV |
Rated busbar current | 3150 / 4000 A |
Rated feeder current | 3150 / 4000 A |
Rated breaking current | 50 kA |
Rated impulse current | 135 kA |
Rated short-time current | 50 kA |
Leakage rate per year and gas compartment | <= 0.5 % |
Bay width | 1500 mm |
Standards | IEC/IEEE |