HT Instruments PV-ISOTEST – 1500V PV Insulation and Continuity Tester with GFL Function

HT Instruments PV-ISOTEST – 1500V PV Insulation and Continuity Tester with GFL Function

Multifunction instrument for electrical safety testing and troubleshooting of photovoltaic systems up to 1,500V DC.

• Insulation measurement up to 1,500V DC even on live systems
• Localization of the faulty module through the new GFL function
• Continuity of the protective conductor with 200mA

PV-ISOTEST represents a real innovation in the panorama of PV verification and testing instrumentation. PV-ISOTEST measures 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.

Traditional insulation meters would require a DC-rated switch-box to short-circuit the positive and negative terminals of the module/string/PV field under test. With PV-ISOTEST the use of any external device is not required, PV-ISOTEST carries out the measurements in full autonomy and self-sufficiency. In addition, through the new GFL (Ground Fault Locator) function, PV-ISOTEST indicates the position of any poor insulation on a string of the photovoltaic system, due, for example, to water or humidity leakage.
 

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.