30-10-2012, 05:46 PM
SWINBURNE’S TEST
SWINBURNE’S TEST.docx (Size: 79.81 KB / Downloads: 22)
PRECAUTIONS:
The field rheostat should be in the minimum position at the time of starting and stopping the motor
[b]PROCEDURE:[/b]
1. Connections are made as per the circuit diagram.
2. After checking the minimum position of field rheostat, DPST switch is closed and starting resistance is gradually removed.
3. By adjusting the field rheostat, the machine is brought to its rated speed.
4. The armature current, field current and voltage readings are noted.
5. The field rheostat is then brought to minimum position DPST switch is opened.