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.
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
Metal-clad construction
Each section of the HS50 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