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PV-ISOTEST : 1500V เครื่องวัดฉนวนและความต้านทานต่อเนื่องของระบบโซล่าเซล พร้อมฟังก์ชั่นค้นหาความบกพร่องระบบกราวด์ (Ground Fault Locator), IEC/EN 62446-
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PV-ISOTEST PVISOTEST PV ISOTEST
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เข้าชม
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HTITALIA
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แก้ไขล่าสุดเมื่อ
25/09/2023 16:10
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รายละเอียดสินค้า
PV-ISOTEST : 1500V เครื่องวัดฉนวนและความต้านทานต่อเนื่องของระบบโซล่าเซล พร้อมฟังก์ชั่นค้นหาความบกพร่องระบบกราวด์
(Ground Fault Locator), IEC/EN 62446-1 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. PV-ISOTEST, the future is coming, and HT brings it. INSULATION IN DUAL MODE VERIFIES Verification with an immediate result (OK | NO) of the insulation resistance of the active conductors of a module, string or entire photovoltaic field, according to the requirements of standard IEC/EN62446, with no need for an external switch to short-circuit the positive and negative terminals IDENTIFIES Automatic identification, with one single test, of the conformity of the total insulation of a whole photovoltaic field, with respect to expectations. PV-ISOTEST is the only verification instrument capable of simultaneously indicating the insulation resistance values of both the positive and negative poles, thus giving the operator the possibility to direct his search to the real location of the fault. INSULATION IN TIMER MODE VERIFIES Verification with immediate result (OK | NO) of the insulation resistance of a cable with calculation of the Dielectric Absorption Ratio (DAR = R1min / R30s) and of the Polarization Index (PI = R10min/R1min), which indicate the state of deterioration of the insulation. IDENTIFIES Evaluation of the values of parameters DAR and PI, specifically useful in case the insulation of particularly long or old cables is to be tested GFL (Ground Fault Locator) function LOCALIZES PV-ISOTEST provides the precise position of a possible single fault of low insulation found on a string of the PV system due, for example, to water or humidity infiltrations. RPE FUNCTION VERIFIES Verification with an immediate result (OK | NO) of the continuity of the protective conductors and of the relevant connections with test current >200mA DMM FUNCTION DISPLAYS Immediate display of the DC and RMS voltages (also including possible AC components) between the poles and the earth. The GFL function provides correct results with the following conditions: ▪ Test carried out with Vtest ≥Vnom on a single string disconnected from the inverter, from possible overvoltage protections and earth connections ▪ Test carried out upstream of possible blocking diodes ▪ Single fault of low insulation located at any position in the string ▪ Insulation resistance of the single fault <0.1MΩ Environmental conditions similar to those in which the fault occurred POWER SUPPLY Battery type : 6x1.5V alkaline batteries type AA LR06 or : 6x1.2V rechargeable batteries type AA LR06 Battery duration : approx. 500 tests (for each function) Auto Power OFF : after 5 minutes' idling OUTPUT INTERFACE PC interface : optical/USB
Tags : PV-ISOTEST_1500V_เครื่องวัดฉนวนและความต้านทานต่อเนื่องของระบบโซล่าเซล