Electrical wiring of systems with batteries, inverters and chargers
Author: Solar 4 RVs
As much as we'd like to write our own, Victron has already produced a high quality free booklet that guides electrical wiring of systems
The most common mistakes we see are regarding parallel battery wiring and cable sizes. Remember that 2400W is 10A at 240V (normally 2.5mm2) the same power would be 200A at 12V (normally 32mm2) required.
Victron’s 'Wiring Unlimited' booket is all about electrical wiring of systems containing batteries, inverters, chargers and inverter/chargers and assists the reader to understand the basic principles behind certain electrical concepts and how they apply to Victron Energy products and the installation of such products.
Topics covered:
- Ohm’s Law
- Power
- Conductivity and resistance
- Current, cable resistance and voltage drop
- Negative effects of cable voltage drop
- Ripple
- Battery bank wiring
- Battery bank
- Large battery banks
- Parallel battery bank wiring
- Battery bank balancing
- Battery bank midpoint
- DC wiring
- Select the right cable
- Busbars
- Cable connections
- Fuses and circuit breakers
- DC isolation switches
- Shunt
- Parallel and/or 3 phase system DC wiring
Victron schematic parallel and or 3 phase sys DC wiring (Parallel – Measuring DC imbalance)
- Large system busbars
- Voltage sensing and compensation
- Solar panels
- Communication wiring
- Data signals
- Interference
- Communication cables and connector types
- Interfaces
- AC wiring
- Power generation
- Distribution networks
- System current VA and Watt
- AC wiring
- Fuses and circuit breakers
- AC bypass switch
- Special considerations for AC wiring of parallel and/or 3 phase inverter/chargers
- Ground, earth and electrical safety
- Electrical safety
- Earth wiring
- RCD
- Neutral to earth link in inverters and in inverter/chargers
- Mobile installations
- Isolation and grounding of Victron Equipment
- System grounding
- Galvanic corrosion
- Preventing galvanic corrosion
- The galvanic isolator
- The isolation transformer