420kV Gas Insulated Switchgear

(Equipment / Material)

Model Number: 420kV GIS

Condition: New

Made in: Korea

Location or Storage Country: Korea

Service Engineering Support: Yes

Warranty: No

Price: Call for price

Description:

The 400kV Gas Insulated Switchgear (GIS) is a compact, metal-enclosed switchgear assembly designed for extra-high-voltage transmission substations up to 420,000 volts. Using SF₆ gas as the primary insulating and arc-quenching medium, it integrates all live components in a sealed, maintenance-reduced enclosure. The system offers high reliability and a reduced footprint compared to conventional air-insulated designs.

Overview:

Rated voltage(kV)	420kV
Short-circuit current rating(kA)	50kA/63kA/80kA
Rated current(A)	Up to 6,300A
Rated frequency(Hz)	50/60Hz
Features	Ensures stable quality thanks to condenser-free breaking parts. Secured with large-capacity breaking performance. Excellent reliability with mechanical durability (class M2) and small capacitive current (class C2). Guaranteed gas leakage rate of less than 0.1%/year.

#400kV GIS #SF insulated #switchgear #EHV #substation

Company Profile

Hyosung Heavy Industries

Locations: South Korea, Seoul, Mapo-gu, Mapo-daero 119

Main Products/Services: Power transformers; GIS switchgear; STATCOM systems; HVDC systems; ESS; Microgrids; Wind power systems; SCADA systems; Renewable energy grid integration; Mobile substations

Registration: South Korea, Seoul, Mapo-gu, Mapo-daero 119

Year Established: 1962