Surge Protection for PV Power Plants (Grid-Connected)
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| Photovoltaic Power Plant |
OVERVIEW
Today’s increased reliance on very sensitive electronics makes surge protection an important topic for surge protection for Photovoltaic System or Solar Power System. The Insurance Institute for Business & Home Safety study found that $26 billion dollars was lost due to non-lightning power surges. In addition, there are about 25 million lightning strikes in the US each year that cause between $650M to $1B in losses according to the Insurance Information Institute, State Farm©.
This article discusses the various aspects of Photovoltaic Systems or Solar Power Systems to help you develop a comprehensive surge mitigation strategy for your equipment. Each section will conclude with a Surge Protective Device (SPD) Protection Point which identifies where and what SPD to use.
Photovoltaic Power Plant
Photovoltaic power plant is exposed to the environment, induced surges via lightning, and switching transients by way of switching from the substation.
SPD Protection Point - Solar Array
Any damage or down time to equipment operating within the solar array directly affects the output of the solar farm.
| Location | System | Surge Protector Model # | Link |
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| AC Combiner Box | 277/480 VAC | DAC104US-277Y |
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| DC Combiner Box | 1500 VDC | DS50PVS-1500/51 |
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| Weather Monitoring Station Power | 12 VDC | DS220S-12DC |
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| Weather Monitoring Station I/O | 4-20mA | DLA-24D3 |
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| Weather Monitoring Station Communication | Ethernet | MJ8-C6A |
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| Solar Tracker Controller | 12-24 VDC | DS220S-24DC |
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| Solar Tracker Controller I/O | 6 VDC | DLA-06D3 |
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SPD Protection Point - Solar Inverter
The solar inverter is directly tied to the solar array. Just as important as the solar array, the solar inverter houses the power electronics needed to convert the DC to AC.
| Location | System | Surge Protector Model # | Link |
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| DC Input | 1500 VDC | DS50PVS-1500/51 |
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| AC Output | 277/480 VAC | DAC104US-277Y |
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| Power Supply AC Input | 120 VDC | DS240S-120/G |
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| Power Supply DC Output | 24 VDC | DS220S-24DC |
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| Ethernet Communication | Ethernet | MJ8-C6A |
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| Surge Protection for PV Power Plants |
Contact us to develop a surge mitigation solution for your application
