Construction

HS-X is indoor type of C-GIS for 36kV primary substation. This C-GIS has fully safety constructions both single and double busbar systems that are against internal-arc explosion for operator.

Features

Fast and easy installation by the application of plug-in type solid insulated busbar.
This type of main busbar does not require gas handling at site for erection or extension work. All gas compartments with rated gas pressure are divided to on-site work.

Specification

Item Rated switchgear
Standard IEC62271-200
Rated voltage(kV) 24 36
Rated frequency(Hz) 50/60Hz
Rated nominal current (A) 630A, 1250A, 2000A, 2500A
Rated insulation level
 Rated power frequency voltage(kV) 50/1min. 70/1min.
 Rated lightning impulse voltage(kV) 125 170
Rated short-time withstand current (kA) 25 31.5 40
Rated duration of short-time current (sec) 3
VCB operation mechanism Motor charged spring
Typical Dimension (WxDxHmm) at 24kV 1250A Feeder 600 x 1900 x 2300 800 x 1900 x 2910
Insulation medium SF6gas
 Rated pressure (Mpa-G) 0.03(4.35psig)
 Alarm pressure (Mpa-G) 0.02(2.90psig)
Internal arc classification AFLR 31.5kA/1sec. AFLR 40kA/1sec.