Wondering how to convert your high DC voltage to a more versatile, stable 24 V DC? The TRIO 1500V DC/DC converter duo with either 192 W or 36 W for decentralized power presents users with the ability to reliably convert a wide input, ranging from 450 V DC (1.5A) / 510 V DC (8A) up to1650 V DC to a stable 24 V DC. This allows users to broaden their unique design capabilities to create a customized solution even without a central grid.
Key features
- Designed with an innovative circuit to ensure resistance against electromagnetic interference
- High MTBF
- Internal overvoltage protection (OVP) circuitry
- Low output voltage ripple
- High surge voltage resistance and unique safe grounding circuitry for different grounding concepts
- Push-in connections for easy, tool-free installation
- Local DC-OK LED
- Relay output for remote monitoring of the output voltage
- Ability to be installed in parallel
- Conforms with standards UL 62109 and UL 1741
- Ambient temperature rated at -25°C - +70°C (>60°C derating 2.5%/K)
Ideal industries and applications
The 1500 V TRIO DC/DC converters can be used in essentially any application that requires the conversion of a high DC voltage to a stable 24 V DC. Two significant industries that will benefit from this DC/DC converter duo are the rail and solar industries.
Rail applications
Railway applications that provide electric to railway trains using a third rail, often referred to as the conductor rail, can utilize the TRIO 1500V/8A DC/DC converter to convert the high DC voltage coming off the rail to provide a steady 24V DC supply to power all kinds of power monitoring and control, analytical field devices and communications in substations.
Solar applications
The ideal application for the new 1500 V TRIO DC/DC converter duo resides in the solar industry. These days, photovoltaic (PV) systems are operated at voltage levels up to 1500 V DC. This presents new challenges for technology in general, and for DC/DC converters specifically. The more powerful TRIO 1500V/8A DC/DC converter serves mainly as a back-up for the central DC/AC inverters: when AC mains is not available, the DC/DC converter provides a continuous reliable DC voltage thus preventing an emergency shut-down and enables start-up of the central inverter. These types of uses can be found in commercial sized installations or with OEMs such as inverter manufacturers.
The smaller TRIO 1500V/1.5A DC/DC converter was specially developed to serve as a reliable source of distributed power to all kinds of data acquisition systems by being connected directly to the array or in the combiner box.
Trenching and conduit runs have been the most frequently used methods of supplying distributed AC power to PV data acquisition hardware. However, this method has high upfront installation costs and limited flexibility in making changes to the power wiring installation. The array-powered DC/DC converter’s autonomous nature offers flexible power options and easy installation within the arrays. When used with wireless communications, completely autonomous data systems are possible. In powering distributed PV data acquisition systems, array-powered DC/DC converters can assist in supporting the efficient asset management of solar arrays.
Array-powered DC/DC converters offer the advantages of hard-wired power distribution systems, as well as the flexibility of an autonomous power system. By utilizing the distributed nature of DC interconnections within an array, cabling to power PV data acquisition hardware is minimized. In addition, 1000 V and 1500 V nominal input array voltage models allow installation with both C&I and utility scale installations. Low voltage 24 V DC output is compatible with most data acquisition hardware such as weather data, solar irradiance, back-of-module temperatures, and combiner box monitoring. The 24 V DC output can also power heating equipment, fans, DC circuit breakers, and lighting.
