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Manufacturing number | GDI000064000 |
The galvanic isolator prevents electrolytic corrosion. It blocks low voltage DC currents that enter your boat via the shore power earth wire. These currents can cause corrosion to the boat’s underwater metals, like the hull, propeller, shaft and so on.
The galvanic isolator consists internally of two diodes which are connected in anti-parallel fashion. When they are connected in this way, the diodes allow current in both directions but only above a certain threshold voltage. The voltage at which diodes conduct is about 1.4 Vdc.
The isolator is installed directly behind your boat's 230V connection. The forward voltage from the galvanic isolator is higher than the potential difference between metals. As a result, this voltage will not allow conduction and as such, the galvanic isolator will prevent any electrolytic current. However, if there is a (higher) error voltage in the AC circuit, the diodes will allow current through and the residual-current device will break the circuit.
NL:
Hoe bereken ik of hoe wordt het berekend hoe zwaar mijn Galvanische Isolator moet zijn op mijn boot. Anders bestel ik gewoon de zwaarste van 64Amp.
EN:
How do I calculate or how is it calculated how heavy my Galvanic Isolator should be on my boat. Otherwise I'll just order the heaviest 64Amp.
NL:
Om het juiste amperage te berekenen voor een Victron galvanische isolator, moet u de volgende stappen volgen:
Hier is een voorbeeld:
Stel dat uw zonne-energiesysteem een totaal DC-stroomverbruik heeft van 100 ampère. U voegt 20% toe aan het totale DC-stroomverbruik, wat 120 ampère geeft. U kijkt in de Victron-specificaties van de galvanische isolator en ziet dat het maximale DC-stroomverlies 150 ampère is. Daarom is de galvanische isolator geschikt voor uw zonne-energiesysteem.
Als het totale DC-stroomverbruik van uw zonne-energiesysteem hoger is dan het maximale DC-stroomverlies van de galvanische isolator, moet u een grotere isolator kiezen.
Hier zijn enkele tips voor het kiezen van de juiste galvanische isolator voor uw zonne-energiesysteem:
EN:
To calculate the correct amperage for a Victron galvanic insulator, you need to follow the following steps:
Here's an example:
Let's say your solar power system has a total DC power consumption of 100 amps. You add 20% to the total DC power consumption, which gives 120 amps. You look at the Victron specifications of the galvanic isolator and see that the maximum DC current loss is 150 amps. Therefore, the galvanic isolator is suitable for your solar energy system.
If the total DC power consumption of your solar power system is higher than the maximum DC power loss of the galvanic isolator, you will need to choose a larger insulator.
Here are some tips for choosing the right galvanic isolator for your solar power system: