TEST & CERTIFICATION
TESTERS POWER AHEAD AT MALAYSIA PV SPECIALISTS
O
ne of Asia’s leading clean energy specialists uses the latest electrical safety test equipment to ensure the solar photovoltaic
(PV) installations it services and maintains operates at peak performance levels. Solarvest Holdings Berhad provides a range
of solar PV engineering, procurement, construction and commissioning services for a number of large scale solar, residential, commercial and industrial projects in Malaysia. Through its dedicated operations and maintenance subsidiary, PowerTrack, the company is actively maintaining and monitoring over 900 projects across the nation. The ongoing work it undertakes for
customers involves pre-commissioning checking and testing PV installations, specifically measuring the relationship between module current and voltage with the simultaneous display of irradiance value while analysing the current vs voltage (I-V) curve. Insulation tests without disconnecting the PV module are also undertaken. To ensure this is carried out quickly, accurately
and to the highest technical standards at dozens of installations across Malaysia, Solarvest’s
regional teams in Selangor, Penang and Johor relies on portable multi-function PV200 solar PV testers from Seaward. These are used to interrogate the health of
individual modules using I-V curve analysis, perform string cable insulation tests, and measure short circuit current (ISC) and open circuit voltage (VOC) during pre- commissioning tests. In this way, the accurate visual comparison of curve shapes can be used for the immediate identification of common problems such as shading, defective cells or poor electrical connections., helping to quickly rectify any problems. Using simple push button operation, the
PV200 also carries out all the electrical tests required by IEC 62446, including maximum power point voltage, current and power, and insulation resistance. Solarvest has used the tester frequently on PV
string voltage design for its Industrial and Large-Scale Solar projects below 1000V in Malaysia to perform PV module output measurements. Muhammad Mahadzir Bin Abdul Halim, operations and maintenance engineer at Solarvest, says the PV200 is a highly efficient tester that allows engineers to complete
34 WINTER 2021 | INDuSTRIAL COMPLIANCE
checks regardless of the location of modules. He adds: “We strive to provide our clients
with the highest quality and value-added turnkey solar energy solutions. The tester is an essential part of our on-site tool kit to enhance the efficiency of our service. With the multifunction PV200 unit eliminating the need for engineers to carry separate meters for different tasks. The ability to take one combined measurement instead of many separate ones greatly improves operator efficiency and accuracy, helping to identify possible faults from the modules and getting them verified and replaced quickly and safely - which is the key requirement of our maintenance work.” The combination of advanced remote
monitoring capabilities with the latest in on- site solar PV test instrumentation enables Solarvest to ensure that the expanding infrastructure of PV installations its responsible for maintaining continues to perform at maximum performance levels. The Seaward PV200 forms part of a
comprehensive range of Seaward solar PV testing equipment.
Seaward
www.seaward.com
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