832-6063.0 * DESCRIPTION SIMOSEC * REVISION 02 33
Description
9.8 Three-position switch-disconnector
The three-position switch is tested in accordance with:
• IEC 62271 - 105
• ANSI/IEEE C37.20.4
• CAN/CSA C22.2 No. 193
9.9 Make-proof grounding switch (feeder grounding switch)
9.10 Selection of HV HRC (current limiting) fuses
Allocation of HV HRC fuses and transformers
The fuses used in SIMOSEC switchgear are manufactured by Bussmann. The fuses
comply with IEC 60282-1 and ANSI/IEEE C37.41. They are a general purpose current
limiting fuse. The time-current characteristics of the fuses comply with the parameters
for E-rated fuses as defined by ANSI C37.46. The fuse dimensions comply with the
requirements of DIN 43625.
The three-position switch-disconnector in the transformer feeder of SIMOSEC
switchgear in combination with Bussmann HV HRC (current limiting) fuses was tested in
accordance with IEC 62 271-105 and ANSI/IEEE C37.20.3.
Please contact us for applications or HV HRC (current limiting) fuses from other
manufacturers.
Rated voltage U
r
kV 8.25 15 27.6
Make-proof grounding
function of the three-posi-
tion switch-disconnector
Rated fault closing current I
ma
up to kA
(asym)
40 40 32
Rated short-time withstand current I
k
up to kA 25 25 20