Delta updates M125HV solar PC string inverter

Operating quieter than its predecessor, the M125HV Gen2 solar PC string inverter offers 99.1 per cent peak efficiency for large ground-mounted solar power plants. Delta has introduced the update for its 140kVA inverter which can accommodate input voltages ranging between 860 and 1500 volts DC with a maximum sporadic voltage of 1,600V. Up to 20 strings can be attached via Amphenol connectors, for instance as part of utility-scale ground-mounted installations, says the company. It operates at 71.5 dB(A).

By accepting high input voltages, the inverter can reduce the amount of current cables must transport, which allows installers to use smaller gauge wire and minimise energy loss.

Intelligent cooling combines natural convection with quieter active ventilation. The M125HV Gen2 is IP65-rated and uses Type-2 surge protection devices on the input and output sides. Avoiding the use of electrolytic capacitors makes a longer service life possible, explains Delta.

The M125HV Gen2 inverter can be remotely controlled and monitored via Fieldbus.

The all-in-one-design has two mechanical DC disconnectors and a pro-EL (electroluminescence) feature. There is a data point collection for string monitoring and I-V curve creation and reactive power is supplied 24/7.

In addition to anti-PID (potential induced degradation) technology, the inverter is Sunspec-compatible.

The updated M125HV Gen2 inverter is available from Delta in Q1 2021 in selected European countries.

Delta was founded in 1971. The switching power supplies and thermal management product manufacturer has a portfolio of smart energy-saving systems and solutions in the fields of industrial automation, building automation, telecomms power, data centre infrastructure, EV charging, renewable energy, energy storage and display, to nurture the development of smart manufacturing and sustainable cities.

The company’s mission statement is “To provide innovative, clean and energy-efficient solutions for a better tomorrow”. Delta leverages its core competence in high-efficiency power electronics and its CSR-embedded business model to address key environmental issues, such as climate change.

Delta serves customers through its sales offices, R&D centres and manufacturing facilities spread over nearly 200 locations across five continents.

Since 2011, Delta has been listed on the DJSI World Index of Dow Jones Sustainability Indices for eight consecutive years. In 2017, Delta was selected by CDP (formerly the Carbon Disclosure Project) for its Climate Change Leadership Level for the second consecutive year.

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