HT Instruments PV-ISOTEST is an innovative product in PV verification and testing instruments. It is capable of measuring the insulation resistance of a single module, a string, or even an entire photovoltaic field up to 1,500 V DC, according to IEC/EN62446 standard.
Traditionally, insulation meters needed a DC-rated switch-box to short-circuit the positive and negative terminals of the module/string/PV field. With PV-ISOTEST the use of any external device is not required, PV-ISOTEST carries out the measurements in full autonomy and self-sufficiency.
HT Instruments PV-ISOTEST Multifunction Tester for Photovoltaic system – Photovoltaic technology is changing
The design and production of installations increasingly takes into consideration the increase in rated voltage, which allows for the realization of strings up to 30% longer, for a higher generated power and, at the same time, uses a smaller number of components, which allows for the reduction of energy loss (BoS) up to 30%, while improving profitability.
In this way, an increasing number of photovoltaic installations are realized with a rated voltage close to 1500VDC, with a view to obtaining the maximization of all the relevant benefits, while falling, at the regulatory level, in the classification of Low Voltage systems.
Consequently, the probability of a stress on each part of the photovoltaic system generates the need of having suitable and highly performing tools for an accurate and appropriate verification of these new parameters.
This is why HT Italia has created and developed PV ISOTEST, the first and only instrument suitable to carry out, on a photovoltaic system up to 1500VDC, the most important safety checks required by standard IEC/EN62446-1, and to guarantee the quality performance a professional nowadays considers as highly indispensable.