HIS 8DN8 up to 145 kV
Highly Integrated Switchgear
Description
You needn't have any space worries with HIS, the gas-insulated switchgear for indoor and outdoor use, because HIS requires less than half the space of a comparable air-insulated switch-gear.
The 8DN8 type HIS is a compact switchgear solution for a rated voltage of up to 145 kV, used mainly for renewal or expansion of air-insulated outdoor and indoor substations, particularly if the operator wants to carry out modifications while the switchgear is in service.
With new construction projects, high site prices and increasingly complex approval procedures mean that space requirement is the prime factor in costing.
With the HIS solution, the circuit-breakers, disconnectors, earthing switches and transformers are accommodated in compressed gas-tight enclosures, thus rendering the switchgear extremely compact.
Thus, you can also meet the growing demands on your switchgear within the scope of the existing site.
Technical Data
Switchgear Type | HIS Type 8DN8 |
Rated voltage | up to 145 kV |
Rated frequency | 50/60 Hz |
Rated power-frequency withstand voltage (1 min.) | up to 275 kV |
Rated lightning impulse withstand voltage (1.2/50 μs) | up to 650 kV |
Rated current | up to 3150 A |
Rated breaking current | up to 40 kA |
Rated impulse current | up to 108 kA |
Rated short-time current | up to 40 kA |
Leakage rate/year | ≤ 0.5% |
Temperature | -30 °C to +55 °C |
Standards | EN/IEC |
Further Information
You find the following information in the download area:
Publications
Leaflet: HIS – Highly Integrated Switchgear up to 145 kV
Compact High Voltage Switchgear Solutions
A Techno-Economic Comparison between GIS & Conventional High Voltage Substations.
Typical bay arrangement (Construction example)
In/Out Arrangement
H - Arrangements
Duplicate Busbar Arrangements