Training System Electrical Control Panel Specifications

• Panel Construction:
  The system is built with an aluminum profile (4X1), forming a sturdy modular flat panel (tabletop) setup. It houses various high-voltage components within plastic enclosures to minimize the risk of electrical shock.

Input 3-Phase DOL Starter Panel

• MCB: 4-pole MCB, 415V/4A

• Contactor: DOL 9A Contactor with 230V, 50Hz, 11VA coil

• Overload Relay: Bimetallic thermal overload relay, range 1.4A - 2.3A

• Indicators: R-Y-B Input Indicators

• Input: 3-phase, ¾ wire, 415V, CT input 5A

• LCD/LED Display: Shows V, I, Hz, Pf, KVA, KW, and KWh

• Auxiliary Supply: 230V, 45-65Hz, 5W

• Switch Panel: FWD-OFF-REV switch

  • FWD/REV 3-pole 3-way switch with center OFF, rated 6A/440V

Motor Specifications

• Motor Type: 3-phase squirrel cage induction motor

• Voltage: 415V AC, 50Hz

• Capacity: 5HP, 4-pole, 1500RPM

• Rotor Construction: Die-cast squirrel cage rotor

• Stator Construction: 6x2 terminals, utilizing pole-changing method (Dahlelander winding) for two-speed operation

• Frame/ Mounting: 100 frame, chassis mounted, 19mm shaft diameter

• Loading Arrangement: Friction brake pulley (60.5mm diameter) with a 20kg spring balance for torque measurement

• Speed Measurement: Hand-held tachometer for speed measurement

Accessories Required

• Digital Tachometer

• 3-Phase / 3A Variac

List of Experiments

1. Speed-torque characteristics of a 3-phase squirrel cage induction motor

2. Efficiency, % slip, and input power factor measurement of a 3-phase squirrel cage induction motor

3. Speed control of squirrel cage induction motor using the pole-changing method

4. 'No Load Test' and 'Blocked Rotor Test' on a 3-phase squirrel cage induction motor

Integrated AC 3-Phase Multifunction Measurement Panel

• Bidirectional Multifunction Measurement: Provides integrated measurement functions for the system.