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Electronic Inverter & Chopper Circuits Trainers Model ETR 031 Series

MODEL ETR 03A: INVERTER USING SCR (PARALLEL) MODEL ETR 031B: CHOPPER USING SCR MODEL ETR 031C BUCK & BOOST CHOPPER MODEL ETR 031D JONES CHOPPER MODEL ETR 031E INVERTORS: SINGLE-TWO TO THREE PHASE

Size:

40cm x 25cm x 10cm (LxWxH)

Weight:

5 kg

Item Description

MODEL ETR 03A: INVERTER USING SCR (PARALLEL)

All Components are terminated with a connector for the study of Students.
One potentiometer is provided to change the Inverter output frequency.
Inbuilt 555 IC based PWM generation.
Separate Inbuilt Power Supply for Triggering Pulse and Power Inverter Circuit.
Inbuilt Resistive Load.
2 no’s of 1:1 Pulse transformers are used for isolated triggering of the SCR.
Detailed mimic diagrams are drowned to facilitate the experiments.
All the junction points are terminated with banana connector for monitor/measure and study of signals using any one of measuring equipment.

MODEL ETR 031B: CHOPPER USING SCR

All Components are terminated with a connector for the study of Students.
One potentiometer is provided to vary the frequency.
Inbuilt Power supply for Chopper Circuit and triggering pulse.
Inbuilt resistive load.
Power ON indication Switch.
Detailed mimic diagrams are drowned to facilitate the experiments.

MODEL ETR 031C BUCK & BOOST CHOPPER

All Components are terminated with a connector for the study of Students.
One no of potentiometer is provided to vary the Frequency.
Another potentiometer is provided to vary Power Supply.
Inbuilt Power supply for Controller and triggering pulse.
Power ON indication Switches for separate input to power circuit and triggering module.
All the important points are terminated with banana connector for monitor/measure/ study thee signals using any one of measuring equipment.

MODEL ETR 031D JONES CHOPPER

This unit consists of two SCR’s, two diodes and an LC commutation circuit to construct a Jones Chopper power circuit. Each device in the unit is mounted on an appropriate heat sink and is protected with an RC snubber circuit. Further each power device has a glass fuse in series with it.

All the components are independent and their connections are brought out to front panel. The cathode and gate of each SCR is brought out on to separate terminals for firing pulse connection. DC MCB and a fuse is provided in series with the DC input.

A field supply bridge rectifier is also provided for DC motor control application in medium and high rating power circuit.

The devices and components can also be used to build different chopper circuits.

MODEL ETR 031E INVERTORS: SINGLE-TWO-THREE PHASE

Single Phase Bridge Inverter Power Electronic Training Board has been designed specifically for study of Single-Phase Inverter. Practical experience on this board carries great educative value for Science and Engineering Students.

Technical Specifications

MODEL ETR 03A: INVERTER USING SCR (PARALLEL)

Specifications

Kit enables experiments.

Design and construction of Parallel Inverter with R Load
Design and construction of Parallel Inverter with RL Load

MODEL ETR 031B: CHOPPER USING SCR

Experiments

Design of DC Jones chopper with R and RL Loads and characteristic study of Commutation

and chopper.

Technical Specification

MODEL ETR 031C BUCK & BOOST CHOPPER

Experiments

Design of Step-up / Boost Converter.
Design of Step-down / Buck Converter.

Technical Specification

Kit Working voltage: (220-240) VAC
Input Voltage: (0-30) VDC
Output Current: 2A
Input Frequency: 50Hz
Frequency: Wide Range
MOSFET Based Step-up and Step-down Choppers kit
Patch cards
6A power supply card
2A Fuse
User Manual of Kit

MODEL ETR 031D JONES CHOPPER

Object:
To study the step down voltage commutated thyristorized chopper.

Specifications
The board consists of the following built-in parts:
01. ±12V D.C. at 100mA IC regulated power supply internally connected.
02. 5V D.C. at 100mA IC regulated power supply internally connected.
03. Bridge Rectifier for making D.C. voltage.
04. UJT as relaxation oscillator.
05. Op-Amp. IC.
06. Timer IC.
07. Hex Inverter Gate IC.
08. Two SCR’s.
09. Two pulse transformer 1:1:1.
10. Two NPN transistor.
11. Two SPST switch.
12. Push-To-On switch.
13. Free wheeling diode.
14. Inductors.
15. Bulb 12V, 6W.
16. Adequate no. of other Electronic Components.
17. Mains ON/OFF switch, Fuse and Jewel light.
* The unit is operative on 230V ±10% at 50Hz A.C. Mains.
* Adequate no. of patch cords stackable 4 mm spring loaded plug length ½ metre.
* Good Quality, reliable terminal/sockets are provided at appropriate places on panel for connections/ observation of waveforms.
* Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book References.

MODEL ETR 031E INVERTORS: SINGLE-TWO TO THREE PHASE

Object: To study the Single-Phase Inverter.

Specifications
The board consists of the following built-in parts:
01. Three ±12V DC at 30mA Regulated Power Supply.
02. One +12V DC at 200mA Regulated Power Supply.
03. One +5V DC at 100mA Regulated Power Supply.
04. Two Monostable Multivibrator IC.
05. Quad Exclusive -OR gate IC.
06. Hex Inverter IC.
07. Four Opto-coupler IC.
08. Twelve NPN Transistor.
09. Four PNP Transistor.
10. Four Power NPN Transistor.
11. One Potentiometer.
12. Mains ON/OFF switch, Fuse and Jewel light.
* The unit is operative on 220V ±10% at 50Hz A.C. Mains.
* Adequate no. of patch cords stackable 4 mm spring loaded plug length ½ meter.
* Good Quality, reliable terminal/sockets are provided at appropriate places on panel for connections/ observation of waveforms.
* Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book

Model Number

ETR 031 Series

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Item Description

Technical Specifications

Experiments

Technical Specification

Experiments

Technical Specification

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