Kongsberg Simrad ST90, Reference Manual

Page: 652 / 690

650
442704/A
•
Maximum transient
: 20% of nominal voltage, recovery time 3 s
•
Power consumption
: 600 VA (Approximately)
Related topics
Power requirements, page 648
Technical specifications, page 643
Hull Unit power requirements
•
Make
: ST90 Hull Unit
•
Model
: All models
•
Voltage requirement
: 230/380/440 VAC
(47 to 63 Hz/3–phase/Nominal voltage)
•
Maximum voltage deviation
:
– 230 VAC: 15%
– 380/440 VAC: 340 to 485 VAC
•
Maximum transient
: 20% of nominal voltage, recovery time 3 s
•
Power consumption
: 3000 VA (Approximately)
•
Circuit breaker requirements:
When the hoist motor starts, it draws a lot of power. It is therefore important that the
electric supply is equipped with a suitable circuit breaker. The circuit breaker must be
able to withstand the large starting current. We recommend using circuit breaker with one
of the following ratings:
– 16D
– 20C
The circuit breaker is labeled with the rated current in amperes, but excluding the unit
symbol, A. Instead, the ampere figure is preceded by a letter,
B , C , or D , which indicates
the instantaneous tripping current . That is the minimum value of current that causes the
circuit breaker to trip without intentional time delay. In general terms, the C type circuit
breaker will withstand 10 times the rated current for a short period of time. The D type
circuit breaker will withstand 20 times the rated current. For more information, see
standard
BS EN 60898 .
Related topics
Power requirements, page 648
Technical specifications, page 643
Simrad ST90 Reference Manual