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Medium voltage switchgears HS50

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Medium voltage switchgears HS50

We have significantly updated our medium voltage switchgear based on our long experience in medium voltage power distribution and control. Various current ratings have been increased and depth dimensions have been reduced while maintaining safety. It is installed on vessels requiring large capacity power generation systems.

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Features

Type tested in accordance with IEC62271-200

  • Arcing due to internal fault test
  • Short-time and peak withstand current test
  • Dilectric test

Full type approval

  • The switchgear and controlgear and the instrument have applied the following standards.
    : IEC 62271-200/100/106, JEC1201 etc
  • Marine classification : ABS, DNV, BV, LR, NK, CCS
  • Each section of the HS21 metal-clad switchboard is separated into four compartments.
    ・Circuit breaker
    ・Main bus bar
    ・Cable terminations
    ・Low voltage equipment
  • Grounded metal plates are used as partitions in each compartment.

Specifications

Available for 7.2kV and 12kV.
Options are available. For details, please refer to the catalog or contact us through the inquiry form.

  Type
HS50-1 HS50-2 HS50-3 HS50-4
Application
Standard conformance IEC 62271-200
Conformance rules ABS, BV, DNV, LR, NK, CCS and others
Loss of service continuity category(LSC)/ Partition Class LSC2B-PM
Internal arc classification AFLR
Rating
Rated voltage 7.2kV 12kV
Rated frequency 50 / 60Hz
Rated power frequency withstand voltage 20kV/min 28kV/min
Rated lightning impulse withstand voltage 60kV 75kV
Rated short time withstand current 31.5kA/3sec
Rated peak withstand current 82kA
Internal arc withstand current 31.5kA / 1 sec
Main busbar current 1250A 2500A 1250A 2500A
Load busbar current 630/1250A 630/1250/1600/2000A 630/1250A 630/1250/1600/2000A
Construction
Switchgear construction Metal-clad
Degree of protection IP42
HS50-1
Rated voltage 7.2kV
Rated power frequency withstand voltage 20kV/min
Rated lightning impulse withstand voltage 60kV
Main busbar current 1250A
Load busbar current 630/1250A
HS50-2
Rated voltage 7.2kV
Rated power frequency withstand voltage 20kV/min
Rated lightning impulse withstand voltage 60kV
Main busbar current 2500A
Load busbar current 630/1250/1600/2000A
HS50-3
Rated voltage 12kV
Rated power frequency withstand voltage 28kV/min
Rated lightning impulse withstand voltage 75kV
Main busbar current 1250A
Load busbar current 630/1250A
HS50-4
Rated voltage 12kV
Rated power frequency withstand voltage 28kV/min
Rated lightning impulse withstand voltage 75kV
Main busbar current 2500A
Load busbar current 630/1250/1600/2000A
Common
Application
Standard conformance IEC 62271-200
Conformance rules ABS, BV, DNV, LR, NK, CCS and others
Loss of service continuity category(LSC)/ Partition Class LSC2B-PM
Internal arc classification AFLR
Rating
Rated frequency 50 / 60Hz
Rated short time withstand current 31.5kA/3sec
Rated peak withstand current 82kA
Internal arc withstand current 31.5kA/1sec
Construction
Switchgear construction Metal-clad
Degree of protection IP42

Dimensions

Dimensions vary depending on the panel type.

Panel type W (mm) H1 (mm) H2 (mm) D (mm)3)
Generator panel 650 2250 2692 1430
Feeder panel1)
Incoming panel1)
EVT panel
Motor panel
Bus-tie panel 1 2)
Bus riser & EVT panel 800
Bus-tie panel 2 800/1000
Sync panel 800/1000
ATr panel 1000 1405 3)
Generator/Feeder 1)/Incoming 1)/EVT/Motor/Bus-tie Panel 1 2)
W(mm) 650
H1(mm) 2250
H2(mm) 2692
D(mm) 3) 1430
Bus riser & EVT panel
W(mm) 800
H1(mm) 2250
H2(mm) 2692
D(mm) 3) 1430
Bus-tie panel 2 / Sync
W(mm) 800/1000
H1(mm) 2250
H2(mm) 2692
D(mm) 3) 1430
ATr Panel
W(mm) 1000
H1(mm) 2250
H2(mm) 2692
D(mm) 3) 1405 3)

Notes
1) Rated current> 1250A, W=800
2) LNG vessels only
3) AT r panel only

Link

Medium voltage switchgears HS21
Medium voltage switchgears

HS21
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TERASAKI Shore Connection

TERASAKI Shore Connection
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