SPEED MEASUREMENT & CLOSED LOOP CONTROL OF DC MOTOR

Specifications:

This unit can be use to study closed loop system response for a PMDC motor.
A 12V PMDC motor with mechanical loading arrangement is also Provided.
Digital Tachometer is provided to measure the speed of the motor.
The power circuit is based on MOSFET chopper.
Three potentiometers are provided to study effect of P controller, I controller & D controller.

THYRISTORISED DRIVE FOR PMDC MOTOR WITH SPEED MEASUREMENT AND CLOSED LOOP CONTROL:

Specifications:

This unit can be use to study Closed loop system response for a PMDC motor with thyristorised control. Digital Tachometer is provided for speed measurement. A PMDC motor along with loading arrangement is also provided. The power circuit is based on Thyristors. Speed of the motor can be set using the potentiometer. The set speed & the running speed can be displayed on the seven segment display. A 12V PMDC motor along with mechanical loading arrangement is also provided. Three potentiometers are provided to study effect of P controller, I controller & D controller.

Specifications:

This unit can be use to study Closed loop system response for a PMDC motor with IGBT/MOSFET chopper control. A PMDC motor along with loading arrang ement is also provided using this unit Closed loop system response for a PMDC motor with 4 quadrant IGBT/MOSFET chopper control can be studied. The control circuit is based on PID. Speed of the motor can be set using the potentio meter.The set speed can be displayed on the seven segment display. Tachometer is provided to indicate the running rpm. An ammeter and voltmeters are also provided with this unit. A 12V/24V PMDC motor along with mechanical loading arrangement is also provided.Three potentiometers are provided to study effect of P controller, I controller & D controller.

Specifications:

This unit can be use to study Closed loop system response for a 1 HP DC motor with thyristor based control. Using this unit Closed loop system response for a1HP DC motor with thyristor based control can be studied. The control circuit is based on PID. The power circuit is based on Thyristors. Speed of the motor can be set using the potentiometer. The set speed can be displayed on the seven segment display. Tachometer is provided to indicate the running rpm. An ammeter and voltmeters are also provided with this unit.Three potentiometers are provided to study effect of P controller, I controller & D controller.

Specifications:

This unit can be use to study Closed loop system response for a 3 HP DC motor with thyristor based control fed with three phase supply. A three phase thyristors rectifier circuit is also provided. The control circuit is based on microprocessor. The power circuit is based on Thyristors. Speed of the motor can be set using the potentiometer.The set speed can be displayed on the seven segment display. Tachometer is provided to indicate the running rpm. An ammeter and voltmeters are also provided with this unit. Three potentiometers are provided to study effect of P controller, I controller & D controller

Specifications:

This control panel consists of  Closed Box Type Panel size 2ftX4ft consists of MCB, Fuses, Indicators, Binding posts,1Ph Variac8A-01no, ac Ammeter (0-10)A-02no’s, AC Voltmeter (0-500)V-02no’s,LPF Wattmeter 10A, 1000 watt-02no’s, Temperature indicator with sensor-01no and wiring.etc Optional equipment 1Ph. @ 10 A Autotransformer 1Ph.@10A Resistive load bank,10Steps MACHINES: 2 KVA, 450V/250V Air Cooled Single Phase Transformer With sheet metal enclosures. (Identical Transformer) -03No

Specifications:

This unit can be use to study Closed loop system response for a DC motor with thyristor based control fed with three phase supply. IGBT based 4 quadrant chopper circuit is provided. The control circuit is based on PID. Speed of the motor can be set using the potentiometer. The set speed can be displayed on the seven segment display. Tachometer is provided to indicate the running rpm. An ammeter and voltmeters are also provided with this unit.Three potentiometers are provided to study effect of P controller, I controller & D controller.

Specifications:

Power circuit:- This part consists of a 3-phase bridge rectifier to convert 3-phase rotor supply to DC supply. An inductor is connected in series with the DC supply for smoothning of DC. Glass fuse is connected in series with the DC supply. An IGBT is provided for chopper control IGBT is mounted on a proper heat sink. Snubber circuit is connected across IGBT for dv/dt. A fuse is also provided for protection. All the points are brought out on the front panel for interconnections. Control circuit :- The control circuit generates driver output for driving the IGBT in chopper mode. The duty cycle can be varied from 0% to 90%. The frequency can be varied from 100Hz to 500Hz. Soft start and soft stop is provided for driver outputs.

Specifications:

A) Single Phase fully control bridge converter power circuit unit (230/5Amps): This Unit consists of  4-SCR’s and freewheeling diode.  All the necessary terminals be brought out on front panel  An MCB,and Fuses provided for input circuit.  A bridge rectifier of 220V/2A DC for field supply B) Single Phase bridge converter triggering circuit unit: This unit generates 4 pulse transformer isolated trigger pulses to trigger SCR’s. Test points should be provided to study the logic circuit and firing angle variation from 180-degree to 0-degree on a graduated scale. Soft start feature may be provided. Optional equipment  Rheostat -150 ohm/5A-1No  Inductor-150mH/5A-1No Isolation transformer-1KVA 1:1 50Hz, 230V with tapings.

Specifications:

A) Single phase half control bridge converter power circuit unit (230V/5A): This Unit consists of  2-SCR ‘s and 2-diodes and a freewheeling diode(SCR and diodes be mounted on heat sink with protection Circuits)  All the necessary terminals should be brought out on front panel  A MCB, fuse to be provided for Input circuit.  A Digital Ammeter and voltmeter to measure output current and voltage.  A Bridge rectifier of 220V/2A DC for field supply. B) Single Phase Bridge converter triggering circuit unit: This unit generates 4 pulse transformer isolated trigger pulses to trigger SCR’s, Test points are to be provided to study the logic circuit, firing angle vary from 180-degree to 0-Degree on a graduated scale. Soft start and stop feature. Optional equipment  Rheostat -150ohms/5A -1No  Isolation transformer 1KVA 1:1, 50Hz, 230V with tapings.