1. Instrumentation Power Supply and Multi-Channel Digital Meter Panel

• DC Multi-Output Power Supply: Provides DC power to neighboring signal conditioning circuit panels through a 20-pin FRC cable.

• AC Power Supply: 1-phase AC supply through three 4A MCBs, each powering other panels in the rack.

2. SCR Actuator (Variable DC) and Sensor Signal Conditioning Panel

• SCR Actuator: Full bridge SCR-based system with a voltage range of 0V to 195V and 12 Amp cosine firing, offering linear characteristics.

• Signal Conditioning: Supports a signal conditioning circuit for speed control, providing an output range of 0-2.5V DC (FS).

• Provision: Two units of these supplies should be provided for the DC Armature and DC Motor Field.

3. DC Voltmeter and DC Ammeter Panel (Configuration 1)

• DC Voltmeter: Measurement range of 0-300V.

• DC Ammeter: Measurement range of 0-5A, with a polarity protection diode and circuit breaker.

• Field Failure Relay: Included to control the Armature supply in case of failure.

4. DC Voltmeter and DC Ammeter Panel (Configuration 2)

• DC Voltmeter: Measurement range of 0-300V.

• DC Ammeter: Measurement range of 0-20A, with a polarity protection diode.

• Circuit Breaker: Includes a 12A circuit breaker for protection.

5. 1-Phase AC Input Panel

• MCBs: 1-phase MCBs of 20A and 4A ratings, one of each.

• Lamp Load: Lamp load to be included as part of the setup.

Motor Specifications

• Voltage: 220V

• Power: 2.5KW

• Speed: 1500 rpm

• Winding Type: Shunt windings

• Loading Arrangement: Spring balance loading arrangement (25 kg)

• Tachometer: Electronic tachometer with 1V/1000 rpm output.

List of Experiments

1. Open-loop torque-speed characteristics.