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GSA ALTERNATOR:
MECHANICAL SPECS
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PARALLEL RUNNING
ALTERNATOR SELECTION

68 TYPE GSA  ALTERNATORS

GENERAL INFORMATION ABOUT 53 TYPE

PRIME POWER RANGE (STANDBY)  600 - 1500 KVA (660 - 1650 KVA)
SPEED  /  NUMBER OF POLES 1500rpm  /  4 POLES
EXCITATION  /  INSULATION TYPE  SELF REGULATING, BRUSHLESS  / CLASS F or H
CONFORM STANDARDS VDE 0530; IEC 34-1; TS 3205-3206-3209
AMBIENT TEMPERATURE / ALTITUDE 40°C  /  from sea level to 1000m
PROTECTION  / CONSTRUCTION TYPE  IP 23  /  B3/ B14(Db.B.) - MD35(Sing.B.)

NOTE: All the information given in this page is about 231/400V 3-Phase alternators. If you need information about single-phase alternators or alternators with different voltage and frequence, please inform us

68 TYPE ALTERNATOR RATING TABLE

TYPE

Cos phi=0.8

rpm
Eficieny %
Drive Power (HP) Base Load
SINGLE BEARING DOUBLE BEARING
CONT. KVA
STANDBY KVA
GSA 681 S/T4 GSA 681 S/4 600 660
1500
93 695
GSA 682 S/T4 GSA 682 S/4 660 726 1500 93,3 759
GSA 683 S/T4 GSA 683 S/4 730 803
1500
94 833
GSA 684 M/T4 GSA 684 M/4 800 880 1500 94.2 911
GSA 685 M/T4 GSA 685 M/4 950 1045 1500 94.4 1080
GSA 686 M/T4 GSA 686 M/4 1050 1155 1500 94.5 1192
GSA 687 L/T4 GSA 687 L/4 1230 1353 1500 94,8 1392
GSA 688 L/T4 GSA 688 L/4 1350 1485 1500 95 1525
GSA 689 L/T4 GSA 689 L/4 1500 1650 1500 95,3 1689

 

MOUNTING DETAILS OF 68 TYPE GSA ALTERNATOR WITH SINGLE BEARING

The dimensions of diesel engine's flywheels and its cover use in gensets should comform SAE J620d  and SAE J617c standards. In GSA alternators, the disc mounted to the engine's  flywheel and the adaptor of alternator mounted to the engine's flywheel cover are design according to these standards. The SAE standards of engines that will used in genset should be informed to us while ordering.

If the SAE number of diesel engine's flywheel and its cover are not known, please find the SAE numbers of your engine's flywheel and its cover by comparing the dimensions given in SAE J620d  and SAE J617c standards.

MOUNTING DETAILS OF 53 TYPE GSA ALTERNATOR WITH DOUBLE BEARING

In the gensets with double bearing alternators, the power is transmited to the alternator's rotor  with the coupling mounted to the end of alternator's shaft. The coupling should be elastic to minimise combustion of the diesel engine's effect on the alternator shaft. 

 At the end of the alternator shaft, there is a screw hole according to DIN 332 standard for mounting or dismounting purposes of the pulley or the coupling. Mounting of the pulley or the coupling can be done by placing a mounting apparatus to the screw hole. For easier mounting, the coupling or the pulley should be machined to H7 tolerance and heated to 120-150ºC. Avoid any kind of heavy hammering to prevent the ball bearings from damaging.

If the Pulley-Belt System is used for transmission in GSA Alternators which are greater than 50 KVA, special ball bearings must be used. In certain cases please inform us while ordering.

GENSAN ELECTRICAL MACHINES CO.