Educational Motors & Machines


Educational Equipments Manufacturer, Exporters & Suppliers - School Educational Equipments Manufacturers & Exporters of Educational Equipments for Lab. Science Lab Products, Teaching Aids, Classroom Instruments, Educational Laboratory

DC Supply

Code:EET1621

DC Supply is an important device in Electrical laboratories. It is very helpful in performing experiments with DC Voltages. The product provides both Fixed and Variable DC supplies. Product is designed such that it can be connected to any other equipment easily. Additional meters are provided to observe output voltage and current measurements.

Features

  • Exclusive and rugged designed panel
  • Stand alone operation
  • Designed by considering all the safety precautions
  • High quality meters
  • Provided with an extensive e-manual

Experiments:

  • Mains Supply : 230 V ±10%, 50Hz
  • Outputs
  • Variable DC : 0 -180V
  • Fixed DC : 180V
  • Transformer
  • Rating : 2kVA
  • Primary Voltage : 0-230V
  • Secondary Voltage : 0-150V, 0-150V
  • Meters Used
  • Voltmeter (MC) : 300V
  • Ammeter (MC) : 10A
  • Auto Transformer : 270V, 10A
  • MCB : 10A
  • Dimensions (mm.) : W 300 ' D 600 '

AC / DC Load

Code:EET1626

AC/DC Load is an important device in all the Electrical laboratories. One can connect a load upto 1.2KW using this product. The device comes with On Board Switches, so that one can vary the load as required, in steps of 100W. The product is designed so as to provide load for various experiments of Transformer, Motors, Generators etc.

Features:

  • Exclusive and rugged designed panel
  • Stand alone operation
  • Designed by considering all the safety precautions
  • High quality meters
  • Provided with a extensive e-manual
  • 2 Year warranty

Technical Specifications

  • Mains Supply : AC / DC, 230V ±10%
  • Load Range : 0 - 1.2 kW, in steps of 100W
  • Load Type : Resistive (Lamp Load)
  • Ammeter (MI) : 10A
  • Dimensions (mm) : 450 W ' 600 D ' 450 H

Electrical Safety Demonstrator

Code:EET1631

The "Electrical Safety Demonstrator is a useful trainer for students to understand the basic concepts and fundamentals of many electrical safety standards. Before working with any electrical or electronic device, it is essential to learn about these electrical safety standards. The trainer is helpful to learn, how to avoid accidents, that generally occuring while handling any electric or electronic device. The trainer has been designed for the people who are working in an electrical environment.

Purpose

  • How to use the electricity safely in home and laboratories ?
  • The dangers associated with power lines and sub-stations.
  • The effects of electrocution on the body.
  • Strategies to avoid electrical accidents.

List of Experiments

  • Designed, considering all safety standards.
  • Exclusive design and attractive presentation of each block.
  • This trainer represents many essential safety precautions.
  • Unique demonstration & importance of Earthing.
  • Real time appearance of MCB to help the students to understand its mechanical arrangement.
  • Demonstration of Fuse in very easy way.
  • Provided with a manual containing coloured graphical representation of many safety standards and with very interesting activities which are to be performed by students.

Other Apparatus Required:

  • Performing different electrical activities to avoid electrical hazards
  • Study of importance of Earthing in any electrical device.
  • Study of role of Fuse in any electrical or electronic circuit.
  • Study of importance and working of Miniature Circuit Breaker (MCB).

Three Phase Lab

Code:EET1636

The Three Phase Lab with Three Phase Low Voltage Power Supply is an elite training system for the electrical laboratories. There is a three phase low voltage supply that provides 18 V of low voltage which is highly safe. This system is valuable in understanding the basic concepts of Three phase circuits like star-delta connections, their phase and line voltages, currents etc. Being different from the present scenario, this system is designed in such a way that a student can himself make connections of three phase circuits because all the experiments are performed on low voltage. The product is designed with keeping in mind that R, L, C combination can be connected in series as well as in parallel in Three Phase circuits.

Features

  • Designed considering all the safety standards
  • Hands on Practice
  • Stand alone operation
  • Test points are provided to measure line and phase parameters
  • Low cost training system
  • 2 Years Warranty
  • Provided with a detailed Operating manual

Experiments that can be performed

  • Study of Three phase low voltage power supply
  • Study of Three phase star connection
  • Study of Three phase delta connection
  • Study of Three phase circuits with balanced load
  • Study of Three phase circuits with unbalanced load
  • Three phase power measurement

Single Phase Transformer Lab

Code:EET1641

Single Phase Transformer Lab is an elite training system for the Electrical laboratories. The product helps you to get fully acquainted with the basic concepts and functioning of a Single Phase Transformer.

The product is represented in such an easy way so that each test can be studied differently in proper sequence. The Lab practically expertises you in exercises like Polarity, Turns Ratio, Transformation Ratio, Iron Loss, Copper Loss, Efficiency etc. The varied scope of learning makes the subject understanding complete.

The setup is complete in all respect and requires no other apparatus. Practical experience on this setup carries a great educative value for Science and Engineering students.

Object:

  • 01. Study of Polarity Test in a Single Phase Transformer
    1.1 Additive Polarity
    1.2 Subtractive Polarity
  • 02. Study of Transformation Ratio in a Single Phase Transformer
    2.1 Isolation Transformer
    2.2 Step Down Transformer
    2.3 Step Up Transformer
  • 03. Study of Open Circuit Test in a Single Phase Transformer
  • 04. Study of Short Circuit Test in a Single Phase Transformer
  • 05. Study of Load Test and correspondingly determine the Efficiency and Voltage Regulation in a Single Phase Transformer

Features:

The board consists of the following built-in parts :
  • Two moving iron 72 x 72 mm AC Voltameter 0 300 V.
  • One moving iron 72 x 72 mm AC Voltmeter 0 50 V.
  • Two moving iron 72 x 72 mm AC Ammeter 0 5 Amp.
  • One moving iron 72 x 72 mm AC Ammeter 0 1Amp.
  • Wattmeter single phase, dynamometer type current coil 0.4 Amp. Potential coil 250 Volt 100W
  • Wattmeter single phase, dynamometer type current coil 4 Amp. Potential coil 250 Volt 1000W
  • Auto transformer input 230V, output 0270V at 5 Amp.
  • Transformer:
    - Rating: 1 KVA
    - Primary Voltage: 0 - 125 V, 0 - 125 V
    - Secondary Voltage: 0 - 125 V, 0 - 125 V
  • MCB: 6Amp
  • Load: Two 100W Bulb Provided for Load. & three pin Socket for external Load Provided.
  • he unit is operative on 230V ±10% at 50Hz AC Mains.
  • Set of connecting wires.
  • Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book References.

Power Measurement by Two Wattmeter Method

Code:EET1646

Power Measurement by Two Wattmeter Method is an exclusive & useful product designed for Electrical laboratories to explain the students, how total power is measured in a three phase circuit using only two wattmeters. With this product, student can study the power flow in three phase system and correspondingly calculate Active, Reactive and Apparent power. Apart from this student can easily understand different three phase parameters like Star connection, Delta connection, Line Voltage, Line Current, Phase Voltage, Phase Current and their mutual relationships.

Features:

  • Exclusive and rugged designed panel
  • Designed by considering all the safety precautions
  • Stand alone operation
  • High quality meters
  • Diagrammatic representation for the ease of connections
  • Provided with an extensive e-manual
  • 2 Year warranty
  • 2 Year Warranty

Technical Specifications

  • Mains Supply : Three Phase 415 V ±10 %, 50 Hz
  • Load : R - L
  • Meters Used
  • Wattmeters : 500 W (2 Nos.)
  • Voltmeter (MI) : 500 V
  • Ammeter (MI) : 1 A
  • MCB : 10 A
  • Dimensions (mm.) : 350 W ' 600 D ' 450 H

List of Experiments

  • Measurement of Power Factor in a Three Phase Circuit
  • Measurement of Active, Reactive and Apparent Power in a Three Phase Circuit
  • Measurement of Three Phase Parameters

Three Phase Induction Motor Trainer

Code:EET1651

Three Phase Induction Motor Trainer is an adaptable training system for the Electrical laboratories. The product helps you to get fully acquainted with the basic concepts and functioning of a Three Phase squirrel cage Induction Motor. The trainer practically expertises you in exercises like Running and Reversing, No Load Test, Block Rotor Test, Slip Measurement, Load Test etc. The vast scope of learning makes the subject completely understandable.

Features:

  • Machine with Mechanical Loading Arrangement
  • Provided with Digital Tachometer
  • Machine with Class "B" Insulation
  • Heavy Duty Base/Channel
  • Brake-Drum/Pulley with heat suppression facility
  • Equipped with supply indication lamps
  • Designed by considering all the safety standards
  • Diagrammatic representation for the ease of connections
  • Exclusive and Compact Design
  • Learning material CD
  • 2 Year Warranty

Technical Specifications

  • Mains Supply : Three Phase, 415V ±10%, 50HzThree Phase Induction Motor
  • Type : Squirrel Cage
  • Rating : 1HP (Also available with 2 HP, 3 HP and 5 HP)
  • Voltage Rating : 415V
  • Speed : 1440 RPM (No Load)
  • Insulation : Class 'B'
  • Loading arrangement : Mechanical
  • Brake Drum/Pulley : Aluminum Casted
  • Analog Meters used
  • Wattmeter : 1000W (2 Nos.)
  • Voltmeter (MI) : 500V
  • Ammeter (MI) : 5A
  • MCB (TPN) : 10A
  • Tachometer : 20,000 RPM
  • Dimensions (mm) : W 600 x D 350 x H 450 (Control Panel), W 250 x D 400 x H 600 (Motor)
  • Weight : 14.5kg (approximate) (Control Panel), 22kg (approximate) (Motor)

Scope of Learning

  • Study of Running and Reversing of Three Phase Induction Motor
  • Study of No Load Test performed in a Three Phase Induction Motor
  • Study of Block Rotor Test performed in a Three Phase Induction Motor
  • Measurement of Slip in a Three Phase Induction Motor
  • Study of Speed-Torque characteristics in a Three Phase Induction Motor

Optional

  • Three Phase Variac, 10A

DC Machine Lab-I

Code:EET1656

DC Machine Lab-I is an adaptable training system for the Electrical laboratories. It can be aptly employed for understanding the basic concepts and functioning of DC Motors and Generators. The product provides hands-on experiments like Speed control, Torque- Load Characteristics, N-V Characteristics, N-I Characteristics etc. The trainer thus provides explicit understanding of the subject.

Features:

  • DC Shunt Machines
  • Electrical Loading arrangement upto 1.2KW
  • Shaft Coupling arrangement
  • Exclusive and rugged designed panel
  • Stand alone operation
  • Designed by considering all the safety precautions
  • High quality meters
  • Diagrammatic representation for the ease of connections
  • Provided with an extensive e-manual
  • 2 Years warranty

Technical Specifications

  • Input : 180 V Fixed DC, 0-180 V Variable DC
  • DC Machine
    - Type : DC Shunt
    - Rating : ½ HP
    - RPM : 1400 (No Load)
  • Meters Used
    - Voltmeter (MC) : 300 V (2 Nos.)
    - Ammeter (MC) : 2 A (2 Nos.)
    - Ammeter (MC) : 5 A (2 Nos.)
  • Dimensions (mm.) : 450 W 600 D 600 H (Panel)
    250 W 800 D 300 H (MG Set)

Scope of Learning

  • Study of No Load Characteristics (OCC) of DC Shunt Generator
  • Study of Load Characteristics of DC Shunt Generator
  • Speed Control of DC Shunt Motor by Field and Armature current variation
  • Load Characteristics of DC Shunt Motor
  • Study of self excited DC Shunt Motor

DC Machine Lab II

Code:EET1661

DC Machine Lab-II is an important system for the Electrical laboratories. It is DC Machine Lab-II that provides comprehensive learning of functioning of a DC Motor. It can aptly be employed for performing various exercises like Motor Starting, Speed Control, N-I Characteristics etc.Thus the trainer makes the subject understanding complete.

Features

  • DC Shunt Motor
  • Mechanical Loading arrangement
  • Exclusive and rugged designed panel
  • Stand alone operation
  • Designed by considering all the safety precautions
  • High quality meters
  • Diagrammatic representation for the ease of connections
  • Provided with an extensive e-manual
  • 2 Years warranty

Technical Specifications

  • Input : 180 V Fixed DC, 0-180 V Variable DC
  • DC Machine
    - Type : DC Shunt
    - Rating : ½ HP
    - RPM : 1400 (No Load)
  • Meters Used
    - Voltmeter (MC) : 300 V
    - Ammeter (MC) : 1 A
    - Ammeter (MC) : 5 A
  • Dimensions (mm.) : 350 W ' 600 D ' 450 H (Panel) , : 250 W ' 400 D ' 600 H (Motor)

Scope of Learning

  • Speed Control of DC Shunt Motor by Field and Armature current variation.
  • Load Characteristics of DC Shunt Motor.
  • N-I Characteristics of DC Shunt Motor.
  • N-V Characteristics of DC Shunt Motor.
  • Study of self excited DC Shunt Motor.

Scott Connection Trainer

Code:EET1666

Scott Connection Trainer is an vital training system for the Electrical Laboratories. It provides comprehensive learning of Three Phase to Two Phase Conversion in a very simple manner. Study and Analyze the operation of Teaser Transformer and Main ransformer. Students can perform standalone operation and observe the two phase step down waveforms on oscilloscope, which will have 90° phase displacement with each other.

The training system is engineered to be simple.

Features

  • Stand alone operation
  • Exclusive and attractive designed panel
  • Designed by considering all the safety precautions
  • Main and Teaser Transformers are shown separately
  • On board high quality meters are used
  • Two phase step down outputs available for waveforms observation on oscilloscope
  • Provided with an extensive e-manual
  • Two years warranty

Technical Specifications

  • Input : 415 V AC ±10%, 50 Hz
  • Main Transformer
    - Input Winding : 0 - 200 V (50%) ±10%, 50 Hz
    : 0 - 200 V (50%) ±10%, 50 Hz
    Output Winding : 0 - 230 V ±10%, 50 Hz
  • Teaser Transformer
    - Input Winding : 0 - 115.6 V (28.9%) ±10%, 50 Hz
    : 346.4 V (86.6%) ±10%, 50 Hz
    : 400 V ±10%, 50 Hz
    Output Winding : 0 - 230 V ±10%, 50 Hz
  • Step down Transformers (2Nos.)
    - Input Winding : 0 - 230 V ±10%, 50Hz
    - Output Winding : 0 - 18 V ±10%, 50Hz
  • Meters Used
    - Voltmeter (MI) (2 Nos.) : 500 V
    - Ammeter (MI) (2Nos.) : 1 A
  • Dimensions (mm) : W 600 ' D 350 '

Scope of Learning

  • Study of Teaser Transformer
  • Study of Scott Connection (Three Phase to Two Phase Conversion)

Sumpner's Test of Two Single Phase Transformers

Code:EET1671

Sumpner's Test of Two Single Phase Transformers is a very exclusive and important product designed for students of Electrical Engineering to explain the basic concepts of Sumpner's test. With this trainer, students can learn about the significance of conducting the heat run test with two single phase transformers and correspondingly can determine the efficiency and voltage regulation Additionally one can also learn the phenomenon of polarity.

The product helps to get fully acquainted with the basic concepts and functioning of the tests conducted on a single phase transformers. The product is represented in such an easy way so that each test can be studied in proper sequence. The varied scope of learning makes the subject complete understanding and interesting.

Features

  • Stand alone operation
  • Exclusive and attractive designed panel
  • Designed by considering all the safety precautions
  • On board high quality meters are used
  • Microcontroller based LCD used to display raising temperature
  • Provided with an extensive e-manual
  • Two years warranty

Technical Specifications

  • Mains supply : 230 V AC ±10%, 50Hz
  • Transformers
    - Rating : 1kVA
    - Primary Voltage : 0 - 125 V, 0 - 125 V
    - Secondary Voltage : 0 - 125 V, 0 - 125 V
  • Meters Used
    - Voltmeter (MI) (2 Nos.) : 100 V, 300 V
    - Ammeter (MI) (2Nos.) : 1 A, 10 A
    - Wattmeter (MI) (2Nos.) : 100 W, 1000 W
  • Auto Transformer : 270 V, 10 A
  • MCB: 10 A
  • Dimensions (mm.) : W 600 ' D 450 ' H 600

Scope of Learning

  • Study of Polarity Test with Two Single Phase Transformersl
  • Study of Sumpner's Test
  • Open Circuit Test
  • Short Circuit Test and
  • Determination of the Efficiency and Voltage Regulation of Two Single Phase Transformers.

Parallel Operation of Two Single Phase Transformers

Code:EET1676

Parallel Operation of Two Single Phase Transformers has been exclusively designed to demonstrate the fundamental concepts of parallel connections of two or more single phase transformers. You can load on the transformer more than the rating of the individual transformer then analyze the Parallel operation phenomenon. Students can learn about the significance of connecting the two transformers in parallel and its effect on the system. Additionally one can also learn the polarity in the transformers. The training system helps to get fully acquainted with the functioning of a single phase transformer. The varied scope of learning makes the subject completely understanding and interesting.

Features

  • Exclusive and attractive designed panel
  • Stand alone operation
  • Designed by considering all the safety precautions
  • Diagrammatic representation for the ease of connections
  • On board high quality meters
  • Provided with an extensive e-manual

Scope of Learning

  • Study of polarity test under two single phase transformers
  • Study of parallel operation of two single phase transformers under equal voltage ratio
  • Study of parallel operation of two single phase transformers under unequal voltage ratio.

Technical Specifications

  • Mains supply : 230 V AC ±10%, 50Hz
  • Transformers (2Nos.)
    - Rating : 1kVA
    - Primary Voltage : 0 - 230 V
    - Secondary Voltage : 0 - 200 - 230 V
  • Meters Used
    - Voltmeter (MI) : 500 V (2 Nos.)
    - Ammeter (MI) : 10 A (2 Nos.)
  • MCB (Single Phase) : 10 A
  • Dimensions (mm.) : W 600 ' D 350 ' H 450

DC Series Motor Lab

Code:EET1681

DC Series Motor Lab is a very useful product for any electrical Laboratory to demonstrate the fundamental concepts and operating principles of DC machines. It is useful for students to enhance their practical knowledge which enables complete learning. Demonstrates, operating characteristic of DC Series Motor. Students can get aware of the methods through which the speed of the DC Series Motor can be controlled. It includes terminals for Rheostat and Starters so that these devices can be connected externally to the panel. All connections and panel ergonomics are designed in such a manner that students can make connections by themselves. All protection devices are in built eliminating chances of fault or danger to user.

  • Stand alone operation
  • Exclusive and attractive designed panel
  • High quality meters
  • Designed by considering all the safety precautions
  • Safety terminals and patch chord package.
  • Mechanical loading arrangement
  • e-Manual
Scope of Learning

  • Study of Operating Characteristics of Separately Excited DC Series Motor
  • Study of Speed Control of Separately Excited DC Series Motor using Field Current Control
  • Study of Speed Control of Separately Excited DC Series Motor using Armature Voltage Control

Technical Specifications

  • Input : 0 - 180 V Variable DC
  • Dimensions (mm) : W 350 × D 600 × H 450

Machine Specifications

  • Type : DC Series
  • Voltage rating : 180 V
  • Current rating : 3 A
  • Power Rating : 1 HP
  • RPM : 1500 R.P.M

Meters used

  • Voltmeter (MC) 1 No. : 300 V
  • Ammeter (MC) 2 Nos. : 5 A

Single Phase Induction Motor Lab

Code:EET1686

Single Phase Induction Motor Lab is an exclusive and attractive training system for the electrical laboratories. It provides complete learning concepts of Single Phase Capacitor Start Induction Motor. Separate terminals have been provided for main winding, starting winding and capacitor so that student can understand the significance of individual windings along with the role of capacitor in the motor in a simple manner.

It includes phenomenon of excitation, running and reversing of the motor. Students can calculate the equivalent circuit parameters and the power factor of the motor. It demonstrates the relation between speed and torque, known as load characteristic or speed-torque characteristic of the motor.

All connections and appearance of panel are designed in a simple manner. Students can make connections by themselves.

Technical Specifications

  • Mains Supply : 230 V ±10%, 50 Hz
  • Induction Motor
  • Type : Capacitor start
  • Phase : Single
  • Current type : AC
  • Rating : 1 HP
  • Voltage rating : 230 V ± 10%
  • Meters Used
  • Voltmeter : 0-300 V
  • Ammeter : 0-10 A
  • Wattmeter : 1000 W
  • MCB : 10 A

Scope of Learning

  • Study of Single Phase Induction Motor
  • Study of Running and Reversing of Single Phase Induction Motor
  • Study of the No-Load Test in a Single Phase Induction Motor
  • Study of the Blocked Rotor Test in a Single Phase Induction Motor
  • Study of Load Test of a Single Phase Induction Motor
  • Exclusive and attractive designed panel
  • Stand alone operation
  • Designed by considering all the safety standards
  • High quality meters
  • Diagrammatic representation of the circuit for ease of connections
  • e-Manual

Single Phase Energy Meter Trainer

Code:EET1691

Single Phase Energy Meter Trainer describes a high accuracy, low cost, single-phase energy meter. The meter is designed for use in single-phase, 2-wire distribution systems. The design can be adapted to suit specific regional requirements, e.g., in USA, power is usually distributed for residential customers as single phase, 3-wire. This is a highly integrated system comprised of two ADC's, a reference circuit, and a fixed DSP function for the calculation of real power. A highly stable oscillator is integrated into the design to provide the necessary clock for the IC. This includes direct drive capability for LCD Display and a high frequency pulse output for Calibration.

Features

  • Complete training system for in depth study of Single Phase Energy Meter.
  • Micro controller based LCD display.
  • The display acts as a counter of units consumed as well as it shows the wattage of load and the time since the system has been On.
  • Easy diagrammatic representation of Energy Meter.
  • Test points are provided to measure the voltages at different points.
  • Low Cost Trainer with high accuracy, demonstrating all the basic concepts of Single Phase Energy Measurement.
  • Good quality, reliable sockets are provided at appropriate places on board for electric board supply and load connections.
  • Designed with considering all safety standards.
  • Provided with an extensive e-manual.

Technical Specifications :

  • Line Voltage : 230V AC ±10%, 50 Hz
  • Meter Constant : 1600 impulses/KWh (On LED)
  • Display Counter : 100 impulses /KWh (On LCD)
  • Maximum Current : 30 A
  • Shunt : 350 mW

Scope of Learning :

  • Study the application of Single Phase Energy Meter for measurement of Power Consumed.
  • Study of Single Phase Energy Meter using different test points and to understand its working

Three Phase Rectifiers Module

Code:EET1696

The Three Phase Rectifiers module is again a versatile module, helpful in understanding the concept of three phase rectifier operation. This module contains silicon diodes for the connections of Half wave and Full wave bridge rectifiers.

Experiment that can be performed

  • Study of three phase rectifiers

Technical Specifications

  • Input : 18 V each phase, 50 Hz ± 10%
  • Output : 18 V Rectified three phase
  • Dimensions (mm) : W 175 × D 130 × H 30

Home Electrical Wiring Training System

Code:EET1701

Home Electrical Wiring Training System is a product which is helpful for students to get familiar with home wiring circuits. This product provides a realistic training environment which is essential for every electrical engineering student and also for apprentice electrician.

It consists of Single Phase Energy Meter, MCB, Controlling Switches, Tube Light with Choke, Regulated Switch, Ceiling Fan, etc. Good quality safe terminals and sockets are provided at appropriate places on board for power supply and load connections.

Features:

  • Easy diagrammatic representation of circuits
  • Energy Meter, Voltage and Current display on Graphical LCD (128x64)
  • Test points are provided to measure the voltages at different points
  • Designed after considering all safety standards
  • Low Cost Training System

Technical Specifications:

  • Supply Voltage : 230V AC ±10%, 50 Hz
  • Energy Meter Specifications
  • Meter Constant : 1600 impulses /KWh
  • Display Counter : 100 impulses /Kwh (On LCD)
  • Single Phase MCB : 6 A
  • Load specifications
  • Tube light : 20 Watt
    - 220-240 V
  • Ceiling Fan : 50 Watt
    - 220-240 V
  • Maximum Load Current : 4 Amp
  • Measurement Display : Graphical LCD (128x64)

Scope of Learning:

  • To study the connection /measurement of
  • Energy Meter and Consumer Unit
  • Voltage
  • Current
  • MCB wiring
  • Tube Light wiring
  • Two-Way Switch wiring
  • Short Circuit Fault
  • Switchboard
  • Ceiling Fan
  • Series-Parallel Operation on load

SCR Application Trainer

Code:EET1706

SCR application trainer has been designed specifically for the study of SCR & Triac application. This training board gives better understanding of SCR, triac, UJT & Diac as used in various applications. Practical experience on this board carries great educative value for Science and Engineering Students.

Object:

  • DC Circuit Breaker
    - To Study SCR Turn Off Action Under Varying Loads
    - 2 To Study DC Over Voltage Current Trip Action
  • Lamp Flasher
    - Symmetrical SCR Type DC Flasher
    - High Power AC Flasher
  • AC Phase Control
    - Half Wave Phase Control
    - Full Wave Phase Control
  • UJT Relaxation Oscillator
  • Thyristor Alarms
    - Study of Make-to-operate Alarms
    - Study of Break- To-operate Alarms
    - Demonstration of Temper-proof Burgler Alarm
  • Time Delay Relay
    - Study of Delayed Turn-'ON' of DC Load
    - Study of Auto Turn-'OFF' of DC Load
  • Light Activated Solid State Switch
  • Light Operated Switch/relay
  • To Demonstrate Lift Activated Relay
  • Temperature Controller
    - To Turn ON or OFF an External Load At A Particular Temperature
    - To Control And Maintain The Temperature of The Internal oven
  • Illumination Control Using Scr
  • Application of a Triac For Illumination Control
  • Study of An Electronic Timer Using IC NE 555
  • Scr Controlled Emergency Light

Features:

The board consists of the following built-in parts :
  • Three I.C. regulated D.C. power supplies internally connected.
  • A.C. supply.
  • Isolation Transformer.
  • Timer I.C.
  • Operational amplifier I.C.
  • Quad dual Input NAND gate I.C.
  • Pulse Transformer.
  • Battery.
  • D.C. Relay.
  • OVEN with Power Supply.
  • Thermometer 0-110 °C.
  • Adequate no. of electronic components to be used in various experiments i.e. Pot 5 Nos., Push to on switch 2 Nos., Push to off switch, Buzzer, Bulb 230V40watt, Bulb 12V 5watt, LED 2Nos., Diode 4 Nos., Diac, Zener 2Nos., LDR, Thermistor, SCR 4 Nos., Triac, UJT 2 Nos. Transistors 3 Nos. Resistance & Capacitor 44No. etc.
  • Main ON/OFF switch, fuse and jewel light
  • The Unit is operative on 230V, ±10% at 50Hz A.C. mains.
  • Good quality, reliable terminals/Sockets are provided at appropriate places on panel for connections/observations.
  • Strongly supported by detailed Operating Instructions, giving details of Object, Theory, Design procedures, Report Suggestions and Book References.
  • Patch cords are provided to make required connections.

Other Apparatus Required:

  • Digital Multimeter
  • General Purpose Unearthed Oscilloscope

Synchronous Machine Training System

Code:EET1711

Synchronous Machines are used as Generators in power plants because of their characteristic relation of speed with frequency. The study of power generators is the part of most of the curriculum. 46580 "Synchronous Machine Training System" is an exclusive product designed to demonstrate the fundamental concepts of parallel operation of Three Phase Synchronous Generators. This product is equipped with advanced measurement system for AC Parameters and DC Parameters. It has inbuilt which is highly stable and accurate. Due to use of big size LCD display it is possible to observe mul t iple parameters simultaneously. The RISC microcontroller based design provides better resolution and sensitivity as compared to analog meters. The panel is also equipped with advanced as Phase Sequence Indicator Digital Synchroscope.

Well as Conventional Lamps (Dark Lamp Method) to perform the synchronization of two generators. Students can learn the basics as well as advanced experiments and safety conditions with precautions that are encountered while generating power with multiple generators . Various terminals including three phase starter terminals are provided on front panel to provide flexibility and ease of connections while performing experiments. Students can perform experiments like Synchronization of parallel generators using advanced and conventional methods,behavior of generator, load sharing, power transfer parameters, analysis of voltage regulation of generator, V curve and inverse V curve in Three Phase Synchronous Generators with a vast flexibility.

Features

  • Two Identical Motor Generator Set
  • Electrical Loading Arrangement
  • 240 X 128 Graphical LCD Display
  • RISC Microcontroller based design for measurement
  • High resolution ADC for accurate measurement
  • High sensitive to change in reading for better controlling
  • Inbuilt Digital Phase Sequence Indicator
  • Equipped with Synchroscope
  • Inbuilt Multifunction Meter for AC & DC Measurement
  • Lamps are provided on front panel for synchronisation
  • Designed considering all the safety standards
  • Provided with shaft protection cover
  • Equipped with supply indication lamps
  • Heavy Duty Base/Channel
  • Machine with Class "B" Insulation
  • Diagrammatic representation for the ease of connections
  • Learning material CD
  • 2 Year Warranty

Phase Sequence Indicator is unique of its kind. It measures the phase sequence of both the generators individually. When both generators are in same phase then it indicates to proceed further. DC measurement block uses high resolution ADC for voltage measurement and current sensor for DC current measurement. This unit provides accurate voltage & current display with higher resolution.

AC measurement unit acts as multifunction meter to Display Current, Voltage, Frequency, Power & Power Factor. It measures parameters from both the generators.

Scope of Learning

  • Synchronization of two Three Phase Alternators by
    a) Synchronoscope method
    b) Three dark lamp method
    c) Two bright one dark lamp method
  • Regulation of Three Phase Alternator by
    a) Open Circuit test
    b) Short Circuit test
  • Study & Analysis of V-Curve & Inverse V-Curve of Synchronous Motor

Technical Specifications

  • DC Power Supply
  • Input mains : 230V AC ±10%, 50Hz
  • Fixed DC output : 200V
  • Variable DC output : 0-200V
  • AC Measurement Unit
  • Voltage : 50 £ 500V
  • Current : 0.2 £10A
  • Power : 20 £ 2000W
  • Power Factor : 0.99 Lead, Lag
  • Frequency : 45 £ 55Hz
  • DC Measurement Unit
  • Voltage : 25 £500V
  • Current : 0.2 £10A
  • Phase Sequence Indicator : For both generators
  • Machines Specification
  • Both the M-G Sets are Flexibly Coupled and Mounted on a "C" channel Base
  • DC Machine
  • Type : Shunt
  • Voltage Rating : 200V
  • Rating : 2 HP
  • Speed : 1500 RPM (no load)
  • Insulation : Class "B"
  • Three Phase Synchronous Machine
  • Type : Salient Pole
  • Rating : 3 HP
  • Voltage rating : 415V AC
  • Speed : 1500 RPM (no load)
  • Excitation Voltage : 120V
  • Insulation : Class "B"
  • Dimensions (mm) : W 930 x D 350 x H 675 (Control Panel)
    W 250 x D 900 x H 400 (MG Set)
  • Weight : 34kg (approx.) (Control Panel) 212kg (approx.) (MG Set 2 Nos.)

Optional

  • DC Power Supply NV725
  • Rheostat 2.8A, 220 ohms (4 Nos.)
  • Three Phase Resistive Load Nv7067

DC Compound Motor Lab

Code:EET1716

DC Compound Motor Lab is an exclusive training system designed for Electrical laboratories to demonstrate the operation of DC compound motor. Students can understand the fundamental operating principle of DC Compound Motor. This product includes various experiments such as No Load Test, Load Test and Operating Characteristics of DC Compound Motor. The training system includes terminals for 4 point starters and rheostat so that these can be connected externally to the control panel.

Features:

  • Machine with mechanical loading arrangement
  • Provided with Digital Tachometer
  • Machine with Class "B" Insulation
  • Heavy Duty Base/Channel
  • Terminals provided to use the optional externally
  • Brake-Drum/Pulley with heat suppression facility
  • Designed by considering all the safety standards
  • Diagrammatic representation for the ease of connec
  • Exclusive and Compact Design
  • Learning material CD
  • 2 Year Warranty

Technical Specifications

  • DC Power Supply
  • Input Mains : 230V AC ±10%, 50Hz
  • Fixed DC output : 200V
  • Variable DC output : 0 -200V
  • Machines Specifications (2 Nos.)
  • Both the machines are flexibly coupled and mounted on "C" channel base
  • DC Machine
  • Type : Compound
  • Rating : 1HP (Also available with 2HP, 3HP & 5HP)
  • Voltage Rating : 200V
  • Speed : 1500 RPM (No Load)
  • Insulation : Class 'B'
  • Loading Arrangement : Mechanical
  • Brake Drum/Pulley : Aluminum Casted Analog Meters used
  • DC Voltmeter (MC) : 300V (2 Nos.)
  • DC Ammeter (MC) : 5A (2 Nos.), 2A
  • Dimensions (mm) : W 600 x D 450 x H 600 (Control Panel)
    W 335 x D 450 x H 560 (motor)
  • Weight : 17kg (approx.) (Control Panel) 40kg (approx.) (Motor)

Scope of Learning

  • Study & verify the Load Characteristics of Short Shunt DC Compound Motor
  • Study & verify the Load Characteristics of Long Shunt DC Compound Motor

Power Measurement By Three Voltmeter & Three Anmeter Method

Code:EET1721

Power Measurement by three voltmeter 7 three Ammeter method is an exclusive and important product designed to explain students about the basic concepts of power measurement in electrical devices by three voltmeter and three Ammeter method. Using these method students can calculate the power and power factor in case of non- availability of the wattmeter.

This is a user product in which students can make connection and calculate the power by using test points provided. The panel is equipped with all necessary protection circuits to avoid fault.

Features:

  • Digital panel meters
  • Designed by considering all the safety precautions
  • Stand alone operation
  • Exclusive and rugged designed panel
  • Diagrammatic representation for ease of connections
  • Leaning material CD
  • 2 Year Warranty

Technical Specifications

  • Mains supply : 230 V ±10%, 50Hz
  • Auxiliary supply : 230 V ± 10%, 50Hz
  • Choke Coil : 300mH, 5A
  • Voltmeter : 0-500V (3Nos.)
  • Ammeter : 0-5A (3 Nos.)
  • MCB : 5A
  • Dimensions (mm) : W 450 x D350 x H 600

Scope of Learning

  • To calculate the power and power factor in a singlephase circuit using three voltmeters.
  • To calculate the power and power factor in a singlephase circuit using three Ammeters.

Optional:

  • Single phase Variac : 0-230V, 5A.
  • Rheostat : 45 W, 5A

Three Phase Transformer Lab

Code:EET1726

"Three Phase Transformer Lab" is an adaptable training system for the Electrical laboratories. The product helps understand basic concepts and functioning of a Three Phase Transformer. The product is represented in an easy way so that each test can be studied differently in proper sequence. Three Phase configurations such as Star-Star, Star-Delta, Delta-Star and Delta-Delta, Measurement of different losses and consequently determine efficiency and voltage regulation at any predetermined load etc.

Features:

  • Stand alone operation
  • Graphical LCD display for high resolution
  • Exclusive and rugged designed set-up
  • Electrical loading arrangement
  • Three Phase Supply indication lamps
  • Designed by considering all the safety precautions
  • Diagrammatic representation for the ease of connections
  • Exhaustive Learning Material
  • 2 Year Warranty

Technical Specifications

  • Mains Supply : 415 V ±10%, 50Hz

Transformer Specifications

  • Type : Three Phase
  • Power Rating : 1KVA
  • Primary Voltage : 415V
  • Secondary Voltage : 230V
  • Rated Current : 4Amp
  • Graphical LCD display : 240 x 125 Pixel
  • Dimensions (mm) : W600 x D350 x H600

Optional:

  • Three Phase Variac, 10Amps
  • Three Phase Resistive Load
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