Code: MOT-EMP-0001
Electrical Machines System.
1. Single-Phase Transformer
(1) Polarity test
(2) Turns ratio test
(3) Open circuit test
(4) Short circuit test
(5) Load characteristic tests
Resistive load
Inductive load
Capacitive load
2. Three-Phase Transformer
Three-phase connections
Y -Y connection
Y -∆ connection
Y -Z connection
∆-Y connection
∆-∆ connection
∆- Z connection
3. DC Machines
(1) DC permanent-magnet motor
Connection and motor direction control
Torque-speed characteristic
(2) DC shunt wound motor
Connection and motor direction control
Torque-speed characteristic
Speed control
(3) DC separately excited generator
No load saturation characteristic
Load characteristic
(4) DC shunt wound generator
No load characteristic
Load characteristic
(5) DC series wound motor
Connection and motor direction control
Torque-speed characteristic
Speed control
(6) DC series wound generator
Load characteristic
(7) DC compound wound motor
Connection and direction control of DC cumulative-compound wound motor
Torque-speed characteristic of DC cumulative-compound wound motor
Speed control of DC cumulative-compound wound motor
Connection and direction control of DC differential-compound wound motor
Torque-speed characteristic of DC differential-compound wound motor
Speed control of DC differential-compound wound motor
(8) DC compound wound generator
Load characteristic of DC cumulative-compound wound generator
Load characteristic of DC differential-compound wound generator
4. Induction Machines
(1) Single-phase induction motor
Torque-speed characteristic with split-phase winding starting
Torque-speed characteristic with capacitor starting and running
(2) Three-phase squirrel cage induction motor
Connection and motor direction control
Y-∆ starting
PF correction
No-load characteristic
Blocked-rotor test
Torque-speed characteristic
(3) Three-phase rotor winding induction motor
Connection and motor direction control
Blocked rotor test
Torque-speed characteristic
(4) Three-phase salient pole synchronous motor
Connection and motor direction control
Excitation characteristic
Load characteristic
(5) Three-phase salient pole synchronous generator
Armature resistance measurement
No load saturation and short circuit characteristic
Load characteristic
Excitation characteristic
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