SF₆ Gas‑Insulated Switchgear – Model Hsg‑074A
(Equipment / Material)
Model Number: HSG‑074A
Condition: New
Made in: Korea
Location or Storage Country: Korea
Service Engineering Support: Yes
Warranty: Yes
Price: Call for price
Description:
The HSG‑074A is a three‑phase encapsulated SF₆ gas‑insulated switchgear for 72.5 kV applications. It features a compact, fully earthed aluminum enclosure with a bay width of 900 mm, reducing installation space by 90% compared to air‑insulated substations. The unit includes a puffer‑type circuit breaker with a spring operating mechanism, tested for 10,000 mechanical operations (Class M2).
Overview:
| Rated voltage | 72.5 kV |
| Power‑frequency withstand voltage | 140 kV |
| Lightning impulse withstand voltage | 325 kVp |
| Rated normal current (busbar/others) | up to 2,500 A |
| Rated short‑circuit breaking current | up to 40 kA |
| Rated short‑time withstand current | up to 40 kA (3 s) |
| Rated SF₆ gas pressure (gauge) | 0.6 MPa |
| Bay width | 900 mm |
| CB operation | three‑phase common operation |
| CB mechanism | spring |
| Mechanical operations | Class M2 (10,000 operations) |
Documentation:
Hyosung Heavy Industries Corporation
Total Employees: 3300
Locations: 119, Mapo‑daero, Gongdeok‑dong, Mapo‑gu, Seoul, 04144, South Korea
Main Products/Services: Heavy electrical equipment: power transformers, circuit breakers, gas‑insulated switchgear (GIS), DC motors, AC motors, generators (diesel, gas turbine, medium‑speed), motor‑generator sets, industrial pumps, and wind energy systems
Registration: 119, Mapo‑daero, Gongdeok‑dong, Mapo‑gu, Seoul, 04144, South Korea
Year Established: 1966