Maretron Alarm Module ALM100 Manual do Utilizador descarregar pdf (Página 351)

Due to the variety of links between the sources and the loads, N2KView may

switch off loads that are not connected to the overloaded source. This is the

safest way to ensure that all the sources are protected under all conditions,

without reprogramming the system each time the Power Distribution is changed.

The estimated Current Draw for each load must be programmed into N2KView

in the Load Shedding Dialog.

Only Loads controlled by the Moritz AC box, Moritz DC box, or Maretron’s

DCR100 are candidates for load shedding. The Moritz DC box and DCR100

would need to switch an AC load indirectly through a relay.

13.3 Startup

On startup, Load Shedding will always be disabled. To enable Load Shedding,

open the Commands & Settings Tab, and then press the Load Shedding

button. Click on the Load Shedding Enabled box and press Apply or Save.

13.4 Shedding Loads

If enabled, N2KView will start shedding loads (switching off the breakers) in order

when the current reported by any of the sources meet or exceed the Load

Shedding Current configured by the user for that source. The current is

averaged over the Delay Between Sheds period specified in the Load

Shedding Dialog.

In the case of a multi-phase source, the current reported will be the average of

the maximum currents reported by each phase. If individual phase currents are

not reported, then the average phase current will be used.

Breakers that are Locked will not be considered for Load Shedding.

Sources that do not report current will not be protected for Load Shedding.

Sources that do have a Load Shedding Current, or whose Load Shedding

Current has been set to zero will not be considered for Load Shedding. This is

the way to indicate to N2KView that a source is not being used.

13.5 Restoring Loads

If enabled, shed loads will be restored in reverse order when N2KView calculates

that adding the load back will not cause the current for each source to rise above

90% of the Load Shedding Current for that source. The assumption that the

current drawn by the load to be restored may increase the current required by

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Maretron Alarm Module ALM100 Manual do Utilizador Página 351