DC alternators for telecom

A FOCUS ON 24VDC AND 48VDC ALTERNATORS FOR TELECOM, LIGHTING TOWERS AND EXTRA-LOW VOLTAGE DC APPLICATIONS

Sincro DC alternators from 60 to 800A, working at variable speed, are supplied with integrated rectifier and digital AVR. A turnkey solution for DC gen-sets, ensuring high stability of voltage and low ripple.

WE, FIRST ONES IN DC SOLUTIONS

In the world of power generation, Sincro has been one of the first Europe-based manufacturers in developing a dedicated range of DC direct-current alternators specifically made for DC gen-sets. It was 2012.
Since then, we have been working to keep improving technology, performances and our product offering, in terms of number of models.

THE RANGE: 28 MODELS

Sincro DC range includes today 28 models Made in Italy, working at 24 VDC or 48 VDC, in 2 or 4 pole version (when considering constant speed), brushless or brushes, supplying reliable and efficient energy from 60A to 800Amps.
DC alternators derive from the basic AC three-phase synchronous versions (E3, FT, FB, IB).

DC APPLICATIONS, INCLUDING HYBRID

DC gen-sets are used in direct-current applications.
These include telecommunications, lighting towers and all kinds of extra-low voltage (ELV) systems used in industrial equipment, construction, military and transportation, such as: APU (auxiliary power units), LED lighting towers (Light Emitting Diode lamps), battery chargers, emergency power back up units, power supply for monitoring of safety warnings, alarms and control devices (railways, traffic-lights etc).
Hybrid power systems are also included (reducing CO2 and heat emissions, fossil fuel consumption, and noise), more and more common in supplying everyday’s life.

HIGH STABILITY OF VOLTAGE

Our DC alternators are equipped with a dedicated DBC1 Digital AVR specifically designed to protect the gen-sets against any current overload. It also maintains a constant nominal output voltage of 24 VDC or 48 VDC within a large operating speed range (variable speed). This provides:
– Nominal speed: 1500 (4 poles/50Hz) or 3000 RPM (2 poles/50Hz)
– Variable speed working: 1400÷2300 RPM (4 pole models), 2900÷4200 RPM (2 pole models).

The voltage set-point can be obtained through: a proper setting of the AVR (trimmer), or an external potentiometer, or an outer controller.

LOW RIPPLE

Sincro DC alternators ensure very low ripple levels, in accordance with international standards requiring low line disturbance on the equipment.

ALL-INCLUSIVE EXECUTION

In Sincro DC alternators, the rectifier is directly integrated in the alternator, offering the gen-set OEMs a turnkey solution with no need for an external rectifier. This can contribute to reduce the investments on the gen-sets production and their mobile transportation (100% optimization).
The diodes rectifier bridge is self-ventilated thanks to the specific design applied on the alternator itself.

SPECIAL VERSIONS

Thanks to our R&D’s team and factories’ flexibility, all our DC models can be produced in a custom version:
9-phase execution for better ripple performances
• Executions at 12V, 36V, 60V etc
• Battery charger module to set different charging cycles depending by the type and temperature of the batteries.