Victron Energy 7000W 230V Isolation Transformer Manual & Service Guide PDF (EN)

Table of Contents

Isolation Transformer Table of Contents 1. Safety Instructions ................................................................................................................... 1 2. Features ................................................................................................................................ 2 2.1. Electrical safety .............................................................................................................. 2 2.2. Galvanic corrosion prevention ............................................................................................. 2 2.3.

Converting voltages ......................................................................................................... 3 2.4. Soft start ...................................................................................................................... 3 2.5. Internal wiring diagram ...................................................................................................... 3 2.6. Safety when the vessel is out of the water ............................................................................... 3 3. Installation ............................................................................................................................. 4 3.1.

What's in the box ............................................................................................................ 4 3.2. Connections overview ...................................................................................................... 4 3.3. Connecting AC input and AC output ...................................................................................... 5 3.4. AC output neutral to earth link ............................................................................................. 5 3.5. Cable cross-section requirements ......................................................................................... 6 3.6.

Wiring example .............................................................................................................. 6 3.7. Linking input and output earth when the vessel is out of the water. ................................................... 6 4. Operation .............................................................................................................................. 8 4.1. Inrush current limiter ........................................................................................................ 8 4.2. Temperature protection ..................................................................................................... 8 5.

Technical specifications ............................................................................................................ 9 6. Dimensions .......................................................................................................................... 10

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1. Safety Instructions

Isolation Transformer 1. Safety Instructions WARNING: Before installing, using, storing or transporting this product, read and save the safety instructions below. General: Review the related documentation of this product to familiarise yourself with safety markings and instructions before operating the equipment. This product has been designed and tested in accordance with international standards. Only use the equipment for the intended purpose of application and in accordance with the specifications as stated in the Technical specification chapter. WARNING: RISK OF ELECTRIC SHOCK. Do not open the enclosure if the product is still connected to an electrical power source.

Do not remove the front panel or operate the product without all panels fitted. Refer all servicing to qualified personnel. Caution: never carry heavy loads without assistance. Do not expose the product to water, mist, snow, spray, or dust. Do not use the product in locations where there is a risk of gas or dust explosions. This product is not ignition protected. Installation: Always refer to the installation section in the manual before applying power to the equipment. Connections, cable sizes and safety features must be according to the locally applicable regulations. This is a safety class I product (provided with a protective earthing terminal).

An uninterruptible safety earth ground must be provided at the AC-in and AC-out terminals. An additional grounding point is located at the outside of the product. Whenever it is likely that the grounding protection has been impaired, the product must be made inoperative and secured against any unintended operation; refer to qualified service personnel. Make sure that circuit breakers are provided in the connecting wires. Never replace a safety component with a different type. Consult the manual to determine the correct component. Before applying power, verify that the available power source matches the configuration settings of the product as described in the manual.

Ensure that the environmental conditions are suitable for the operation of the equipment. Never operate the product in the rain or a dusty environment. Allow at least 10cm of free space around the product for ventilation, and ensure that ventilation fans are not blocked. Install in a well-ventilated and heat-resistant environment. Avoid the presence of, e.g. chemicals, synthetic components, curtains or other textiles in the immediate vicinity of the product. Be sure that the demanded power does not exceed the product's power rating. Transport and storage: When storing or transporting the product, make sure that all mains power leads are disconnected.

No liability can be accepted for any transport damage when equipment is shipped in non-original packaging. Store the product in a dry location. Storage temperature must be between -20°C and 60°C. Page 1 Safety Instructions

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2.2. Galvanic corrosion prevention

Isolation Transformer 2. Features The isolation transformer eliminates any electrical continuity between AC shore power and the vessel. It is essential for safety and eliminates the need for galvanic isolators and polarity alarms. 2.1. Electrical safety Electrical safety is taken for granted in the case of a standard on-shore installation. A circuit breaker will trip, or a GFCI (Ground Fault Circuit Interrupter) will trip in case of a short circuit or a current leakage to ground. Connecting the ground wire of the shore-side supply to a vessel's metal parts will result in galvanic corrosion.

Bringing only the live and neutral wire onboard results in an unsafe situation because GFCIs will not work, nor will a breaker trip in case of a short circuit to a metal part on the vessel. 2.2. Galvanic corrosion prevention Galvanic corrosion occurs when two dissimilar metals in electrical contact are simultaneously exposed to an electrically conducting fluid. Seawater and, to a lesser extent, freshwater are such fluids. In general, the more active alloy of the couple corrodes preferentially, while the less active (more noble) material is cathodically protected.

The rate of galvanic corrosion is a function of several variables, including area ratios, the conductivity of the fluid, temperature, the nature of the materials, etc. It is a misunderstanding that galvanic corrosion occurs only in metal and aluminium hulls. In fact, it can occur on any vessel as soon as a metallic part (the shaft and propeller) is in contact with water. Galvanic corrosion will quickly dissolve your sacrificial anodes and attack the shaft, propeller and other metal parts in contact with water when the vessel is connected to the shore-side supply. It might therefore be tempting not to connect the ground conductor:

this is, however, extremely dangerous because a GFCI will not work, nor will a circuit breaker trip in case of a short circuit to a metal part on the vessel. The best solution to avoid galvanic corrosion and, at the same time, prevent any unsafe situation is to install an isolation transformer to connect to the shore-side supply. The isolation transformer eliminates any electrical continuity between shore power and the vessel. The shore power is fed to the transformer's primary side, and the vessel is connected to the secondary. The isolation transformer completely isolates the vessel from the shore ground.

By connecting all metal parts to the neutral output on the secondary side of the transformer, a GFCI or a breaker will trip in case of a short circuit. The shore ground connected to immersed metals of the vessel causes galvanic corrosion. Page 2 Features ID Description A Shore AC supply B Shore AC distribution C GFCI (ground fault circuit interrupter) D Vessel AC supply E Galvanic corrosion

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2.6. Safety when the vessel is out of the water

Isolation Transformer The shore ground is isolated from the vessel ground, and galvanic corrosion originating from the shore connection is blocked. 2.3. Converting voltages The isolation transformer converts the input voltage with a 1:1.05 ratio. The 1:1.05 transformer ratio boosts the output voltage of the isolation transformer by 5%. This is to compensate for shore power voltage drops that are a common occurrence in marinas. A 230V input becomes 240V. The isolation transformer can be used in 50Hz or 60Hz systems. However, the isolation transformer cannot convert frequencies from 50Hz to 60Hz or vice versa. 2.4.

Soft start Soft start is a standard feature of a Victron Energy isolation transformer. It will prevent the shore power circuit breaker from tripping due to the transformer inrush current. 2.5. Internal wiring diagram Internal wiring diagram of the isolation transformer. 2.6. Safety when the vessel is out of the water It is recommended, for optimal safety, to connect the shore earth to the vessel's earth when the vessel is out of the water, in winter or for maintenance. The isolation transformer has a facility for this.

Page 3 Features ID Description A Shore AC supply B Shore AC distribution C Isolation transformer D GFCI (ground fault circuit interrupter) E Vessel AC supply ID Description A Shore AC connection B Soft start C Transformer D Vessel AC connection E Neutral - Earth link (removable) F Shore Earth G Vessel Earth

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