G Pulla Reddy Engineering College
Electrical Machines – Virtual Laboratory
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Brake Test on DC Motor - Simulation
Interactive Virtual Laboratory
Control Parameters
Supply Voltage (V):
Armature Current (I):
Speed (N) in RPM:
Spring Balance 1 (W
1
) in Kg:
Spring Balance 2 (W
2
) in Kg:
Brake Drum Radius (R) in m:
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Results
Net Weight (W
1
- W
2
):
1.0 Kg
Torque (T = 9.81 * Net Weight * R):
1.47 N-m
Output Power (P
out
= 2pNT/60):
223.45 W
Input Power (P
in
= V * I):
1870.00 W
Efficiency (η = P
out
/P
in
* 100):
11.95 %
Status:
System Ready
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Performance Characteristics & Observation Table
Observation Table
S.No
Voltage (V)
Current (I)
Speed (N)
Net Wt (Kg)
Output (W)
Efficiency (%)
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