medium voltage product

medium voltage product dari PT.Sidohita Jaya

Oleh: PT.Sidohita Jaya  12/03/2012
Kata kunci: Explosion Proof

Metal Enclosed switchgear: IEC 60298
General Purpose switches: IEC 60265
Disconnectors and Earthing switches: IEC 60129
Switch Fuse Combination: IEC 60420
Circuit Breakers: IEC 60056
Common clauses: IEC 60694
Pressure of SF6 gas: 1.4 bar at 20 ° C
Temperature class: -25 ° C indoor
Humidity: daily £ 95% , monthly £ 90%
Degree of protection:
- SF6 tank: IP 67
- Fusecanisters: IP 67
- Front cover: IP 2X
- Cable cover: IP 3X
Busbars: 240 mm2 Cu
Earth bar ( external) : 120 mm2 Cu - Bolt dimension: M10
Thickness of Stainless Steel Tank: 3.0 mm
Colours:
- Front cover: RAL 7012
- Side and cable cover: RAL 7035

ELECTRICAL DATA - 24 kV
Rated current for inner busbars: 630 A
Rated current for external busbars: 1250 A
Rated current for cable switch disconnector : 630 A
Short time withstand current ( 3 sec) cable switch disconnector : 21 kArms Short time withstand current ( 3 sec) vacuum circuit breaker: 16kArms Rated current for transformer T-off : 200 / 630 A

Impulse withstand voltage :
To earth and between phases: 125 kV Insulation level:
- Power frequency 1 min: 50 kV

Kata kunci: Explosion Proof