HIS 8DQ1 up to 550 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 8DQ1 type HIS is a compact switchgear solution for a rated voltage of up to 550 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 and at minimum 5 independent gas compartments, 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 8DQ1 |
Rated voltage | up to 550 kV |
Rated frequency | 50/60 Hz |
Rated power-frequency withstand voltage (1 min.) | up to 740 kV |
Rated lightning impulse withstand voltage (1.2/50 μs) | up to 1550 kV |
Rated current | up to 4000 A |
Rated breaking current | up to 63 kA |
Rated impulse current | up to 170 kA |
Rated short-time current | up to 63 kA |
Leakage rate/year | ≤ 0.5% |
Temperature | up to -30°C and + 55°C |
Standards | EN/IEC |
Further Information
You find the following information in the download area:
Publications
Specification
This specification covers the requirements for the supply of a hybrid outdoor switchgear for rated voltages up to 550 kV.
You can use this Word document as a base for the draft of your own specification.
Typical bay arrangement (Construction example)