AvK DSG 62–144 — low-voltage synchronous generator 400–690 V, 600–8500 kVA

Technical specifications

Specifications are taken from the manufacturer’s technical documentation. Updated 11/10/2026.

Description

The frame is a rigid steel one, the stator has formed coils, the rotor is assembled from flat copper windings in wedges, and the damper winding suppresses harmonics in parallel operation. The insulation is class H with vacuum pressure impregnation VPI, and the winding pitch is 2/3–5/6. The brushless excitation is fed from an auxiliary stator winding and gives a short-circuit current of more than 3 times rated; a PMG sub-exciter is optional. The regulators DECS100, DECS150, DECS250, DM110, UNITROL 1010 and 1020 hold ±0.5 % in island mode. The protection is IP23 (IP44 for the DSG125 and DSG144), and optionally IP44, IP54, IP55. The cooling is IC01, IC611/IC616 for dusty environments and IC81W for ships and power plants.

How to choose

The choice starts with the output and the number of engine poles. The DSG62 gives 650–1100 kVA at 50 Hz (up to 1320 kVA at 60 Hz) on 4 poles, the DSG74 gives 600–2000 kVA (up to 2400) on 4–8 poles, the DSG86 gives 670–2990 kVA (up to 3408) on 4–10, the DSG99 gives 1220–4700 kVA (up to 5300) on 4–10, the DSG114 gives 2080–5000 kVA (up to 5940) on 6–10, and the DSG125 gives 4200–7000 kVA (up to 8500) on 8–10 poles. The DSG144 gives 6600 kVA at 60 Hz on 10 poles, and the DSG125 and DSG144 are built only for 690 V.