3-phase DC rectifiers can be set up in parallel

Edited by the Engineeringtalk editorial team Jun 12, 2001

Advance-Galatrek has launched a new three phase input DC rectifier, designed for use both as a stand alone device, or in parallel with other units.

Advance-Galatrek has launched a new three phase input DC rectifier, designed for use both as a stand alone device, or in parallel with other units.

The PowerPak GDC 50-100 operates from a three phase input voltage of 400Vac to provide an output voltage of 48Vdc, with a rectifier amperage of 100A.

GDC 50-100's plug and play design allows up to twelve rectifiers to be configured in parallel, or as an n+1 configuration.

This gives a total amperage of 1,200A at 24Vdc, with the option of linking up to five systems in parallel, to give a total of 6000A at 48Vdc.

When used in combination with other GDC 50-100's, the system utilises digital current sharing, to equalise individual rectifier usage.

This innovative technology reduces wear and tear on individual components in the power supply system.

GDC 50-100 also features a remote system interface that allows connection directly to a PC or to the Advance-Galatrek GDC 2012 and GDC 2012NET system controllers.

These highly advanced controllers provide a whole series of user benefits, when operated in conjunction with the GDC 50-100.

In particular, the GDC 2012NET allows remote management and control of the DC power supply over the Internet, or other equivalent network.

Using SNMP, the GDC 2012NET controller can interface directly with the GDC 50-100 DC rectifier to enable remote management of both manned and unmanned sites, providing a time-saving and cost-effective way of managing and controlling the complete power supply system from a distance.

This facility is particularly attractive to telecoms and mobile network operators that would otherwise need to undertake physical management of sites that are often located in remote areas.

The PowerPak GDC 50-100 rectifier uses active power factor correction to provide more accurate control over output current, helping to ensure the most reliable operation for vital equipment in mission critical applications.

Soft switching technology also helps improve equipment longevity by reducing power supply variations.

Additionally GDC 50-100 features active filters to protect both unit and load from local spikes and electrical noise.

For industrial and exposed sites, Advance-Galatrek recommends adding its StrikeSafe Transient Voltage Surge Suppressors (TVSS) to the system.

This can prevent system damage or even catastrophic failure resulting from transients or lightning strikes.

Each GDC 50-100 features a front panel DC circuit breaker, together with a Liquid Crystal Display and LED status indicators, to provide voltage, current and temperature measurements.

These facilities, together with the comprehensive battery management capabilities included within the GDC 2012 controller, provide a unique combination of innovative technology, modular expansion, ease of maintenance and sophisticated remote management and control.