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©Denis Lenardic
2001-2010
All Rights Reserved
Thursday
2nd Sep, 2010
21:45
This page was last time updated on
28th Jun, 2009
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Photovoltaic instrumentation
"If you cannot measure it, you cannot improve it."
(Lord Kelvin)
Low cost VA meter for low voltage DC systems can be build by advanced hobbysts
(Photo:
Denis Lenardic)
Useful additional PV system components are different measurement instruments, such as V-meters, A-meters, Ah- or kWh-meters. They could be produced as modules (V-, A- meters) or as standalone instruments. The instruments for mounting standard 35 mm rail are also available. Ah-counters could be used for battery monitoring. This instrument helps us estimate how much battery capacity could still be employed. Application of kWh-counters in grid connected systems calculate how much electricity was produced by the photovoltaic system and transferred to the public grid, and how much electricity was transferred from the public grid to households.
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Meters in photovoltaic systems |
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A general recommendation for PV instrumentation design and application
include:
How
to build digital A-meter – some instructions |
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Meters for use in photovoltaic systems - commercial links |
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Murata Power Solutions - C&D Technologies has over 25 years of experiences in designing and manufacturing digital panel meters. Today company is focusing on specific applications of 2-wire meters, process monitors and ac or dc ammeters that are the easiest- to-use, most affordable meters available. Languages:
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Xantrex - VA meters and batery bank monitors. Detailed description available in accessories section. Languages:
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Bogart Engineering - TriMetric battery monitor. Languages: |
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Helios Technology - modules, charge regulators and various accessories (displays) for use in low voltage DC systems (mobile and marine sollutions). Languages: |
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Precision current sense resistors - commercial links |
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Caddock - high performance film resistors. Current sense film resistor also available. Languages:
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Isabellenhütte - precision resistors and resistor networks. Current sense resistors also available. Languages:
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Solar radiation sensors and dataloggers |
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NES - Mess- und Meldesysteme - Silizium-Solar-Einstrahlungssensoren. Languages:
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PV array monitoring/control instruments |
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PV Engineering - The cutting-edge photovoltaic measuring devices (field tester) series PVPM allow the measurement of the I-V-curve of the generator as well as the instant display of the peak power (extrapolated to STC) and the internal serial resistance: two important values for an immediate objective validation of the real state of the generator. Languages:
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HT Italia - offers proffesional photovoltaic testers for power quality analysis and testing on photovoltaic installations. Languages:
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Solarc - das MacSolar Messgerät wurde für Ingenieure, Architekten, Installateure und Messtechniker entwickelt. Die gemessenen Größen Bestrahlungsstärke und Temperatur dienen als Ausgangspunkt für die Simulation des Energieertrages von Photovoltaik-Modulen. Um die hohe angegebene Genauigkeit zu erreichen, werden bei dieser Simulation Installationsart und Qualität der Module mit eingerechnet. Abmessungen und Design ermöglichen eine praxisgerechte Einhandbedienung. Languages:
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Other interesting sites |
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Semiconductors HQ - Everything Semiconductors, from Abb Semiconductors to Zetex Semiconductors. Languages:
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Literature and more information (electronics related links) |
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Electronics World, February 2002, No.1790: Photovoltaic System
Current-Sense Cirquit
