Power Electronics Trainer – Basic

Power Electronics has evolved from static converter technology into a significant field within electrical engineering and electronics. By using power semiconductors power electronics performs such functions as switching, controlling and converting of electrical energy with the greatest possible efficiency. One area of application for power electronics is drive technology. Here, speed variable DC and three-phase four-quadrant drives can easily be realized using modern power electronics. As a result of this development we can no longer imagine industry, workshop tools, commercial enterprises and household appliances without thyristor speed control units, smooth-starting circuits, frequency converters etc. The training panel system for power electronics and drive now makes it possible to convey the technical knowledge of this field.

• The experiments permit practice-oriented, hands-on training to be carried out, thus assuring the trainees of the proficiency needed to handle the tasks and the equipment found in this field. The training panels and functional units with block circuit diagrams and signal diagrams permit clear and understandable assembly of the experiment circuits. Beginning with the basic circuits, the student proceeds to tackle more complex circuits in power electronics and drive technology using a proven step-by-step method designed for didactic results. And of course, the model behind the entire system is the circuitry used in industrial applications.

Experiments cover the following topics :

Section 1: Diode and Uncontrolled Rectifier Circuit (AC-DC Conversion)

• 1-1 Power Diode
• 1-2 Single Phase Half Wave Rectifier Circuit
• 1-3 Full Wave Rectifier Circuit with Center Tap Transformer
• 1-4 Single Phase Full wave Bridge Rectifier Circuit
• 1-5 Three Phase Half Wave Rectifier Circuit
• 1-6 Three Phase Full Wave with Center Tap Transformer Rectifier Circuit
• 1-7 Three Phase Full Wave Bridge Rectifier Circuit

Section 2: SCR and Controlled Rectifier Circuit (AC-DC Conversion)

• 2-1 SCR and Single Phase Controller
• 2-2 Single Phase Half Wave Controlled Rectifier Circuit
• 2-3 Single Phase Full Wave Controlled Rectifier With Center Tap Transformer Circuit
• 2-4 Single Phase Bridge Full Wave Controlled Rectifier Circuit
• 2-5 Single Phase Full Wave Half Controlled Rectifier Circuit
• 2-6 Three Phase Half Wave Controlled Rectifier Circuit
• 2-7 Three Phase Full Wave Controlled Rectifier With Center Tap Transformer Circuit
• 2-8 Three Phase Bridge Full Wave Controlled Rectifier Circuit
• 2-9 Three Phase Full Wave Half Control Bridge Rectifier Circuit
• 2-10 Star-Delta Connections Control Rectifier Circuit

Section 3: Thyristors and Controlled Circuit (AC-AC Conversion)

• 3-1 Triac
• 3-2 Single Phase AC Voltage Control Circuit (On-Off Control)
• 3-3 Single Phase AC Voltage Control Circuit (Phase Control)
• 3-4 Three Phase Full Wave AC Voltage Control Circuit

Section 4: Chopper Circuit (DC-DC Conversion)

• 4-1 PWM Generation and Gate Drive Circuit
• 4-2 IGBT Chopper / Inverter Circuit
• 4-3 MOSFET Chopper Circuit
• 4-4 Darlington Chopper Circuit
• 4-5 Hi-Bridge Converter
• 4-6 Cycloconverters

EXPERIMENTS MODULE CONSISTS OF THE FOLLOWING :

GROUP OF DIODE MODULE

• Device : Fast Acting Silicon Diode
• Quantity : 6
• Voltage : 500V
• Current : 15A
• Protection : 5A Fuse With Fuse Holder
• Terminal Socket : 4mm Safety Type
• Unit Type : Panel H2

GROUP OF SCR MODULE (2 UNITS)

• Device : Silicon Control Rectifier
• Quantity : 6
• Voltage : 600V
• Current : 15A
• Protection : 5A Fuse With Fuse Holder
• Terminal Socket : 4mm Safety Type
• Unit Type : Panel H2

TRIAC MODULE

• Device : TRAIC
• Quantity : 1
• Voltage : 600V
• Current : 15A
• Protection : 5A Fuse With Fuse Holder
• Terminal Socket : 4mm Safety Type
• Unit Type : Panel H1

POWER MOSFET MODULE

• Device : Power Field Effect Transistor (N-Channel Enhancement Mode Silicon Gate)
• DC Input Voltage : Maximum 220V
• DC Output Current : Maximum 5A
• Switching Frequency : 0–15KHz
• Quantity : 1
• Voltage : 600V
• Current : 15A
• Protection : 5A Fuse With Fuse Holder
• Terminal Socket : 4mm Safety Type
• Unit Type : Panel H1

DARLINGTON TRANSISTOR MODULE

• Device : Darlington Transistor
• DC Input Voltage : Maximum 220V
• DC Output Current : Maximum 5A
• Switching Frequency : 0–15KHz
• Quantity : 1
• Voltage : 600V
• Current : 15A
• Protection : 5A Fuse With Fuse Holder
• Terminal Socket : 4mm Safety Type
• Unit Type : Panel H1

IGBT CHOPPER / INVERTER MODULE

• Device : Silicon Insulated Gate Bipolar Transistor (N-Channel Enhancement Mode Silicon)
• DC Input Voltage : Maximum 220V
• DC Output Current : Maximum 5A
• Switching Frequency : 0–15KHz
• Quantity : 6
• Voltage : 600V
• Current : 15A
• Protection : 5A Fuse With Fuse Holder
• Terminal Socket : 4mm Safety Type
• Unit Type : Panel H2

TWO PULSE CONTROLLER

• Power Supply : +15V/0V/-15V
• Input / Output : Transformer & Pulse Transformer
• Synchronization Voltage : 5-220V,50/60Hz
• Control Voltage : 0-10V
• Trigger Angle : 0-30°
• Trigger Control Delay Angle : 0-180° & 180°-360°
• Pulse Output : Single Pulse, Train Pulse
• Protection : 5A Fuse With Fuse Holder
• Terminal Socket : 4mm Safety Type
• Unit Type : Panel H1

SIX PULSE CONTROLLER

• Power Supply : +15V/0V/-15V
• Input / Output : Transformer & Pulse Transformer
• Synchronization Voltage : 5-400V, 50/60Hz
• Control Voltage : 0-10V
• Trigger Angle : 0-30°
• Trigger Control Delay Angle: 0-180° & 180°-360°
• Pulse Output : Single Pulse & Train Pulse
• Protection : 5A Fuse With Fuse Holder
• Terminal Socket : 4mm Safety Type
• Unit Type : Panel H2

PWM CONTROLLER

• Output: Pulse Width Modulation Isolated Pulse Output
• Frequency Variable : 0–20kHz : x1, x10, x100 (Switchable)
• Duty Ratio : 0–100% (Reverse / Forward)
• Protection : 5A Fuse With Fuse Holder
• Terminal Socket : 4mm Safety Type
• Unit Type : Panel H2

DUTY CYCLE PHASE CONTROLLER

• Power Supply : +15V/0V/-15V
• Synchronization Voltage : 5-400V,50/60Hz
• Output Phase Control : Positive and Negative
• Duty Cycle (D) : 0.00, 0.25, 0.50, 0.75, 1.00
• Protection: 5A Fuse With Fuse Holder
• Terminal Socket: 4mm Safety Type
• Unit Type : Panel H1

RESISTIVE LOAD MODULE (I)

• Configuration : STAR , DELTA
• Resistor : 3X100Ohm / 100 Watt
• Protection : 5A Fuse With Fuse Holder
• Terminal Socket : 4mm Safety Type
• Unit Type : Panel H1

INDUCTIVE LOAD MODULE

• Configuration : STAR , DELTA
• Inductor : 50mH/2.5A
• Protection : 5A Fuse With Fuse Holder
• Terminal Socket : 4mm Safety Type
• Unit Type : Panel H1

CAPACITOR LOAD MODULE

o Configuration : STAR , DELTA
o Capacitor : 0.1uF / 450V
o Protection : 5A Fuse With Fuse Holder
o Terminal Socket : 4mm Safety Type
o Unit Type : Panel H1

RESISTOR LOAD MODULE (II)
o Configuration : STAR , DELTA
o Resistor : 3°1.0 Ohm/5Watt
o Protection : 5A Fuse With Fuse Holder
o Terminal Socket : 4mm Safety Type
o Unit Type : Panel H1

DC POWER SUPPLY MODULE

• Output Type : DC Fixed Output Voltage
• Output Voltage : +15V/0/-15V
• Output Current : 2A
• Power Supply : 240V,50Hz
• Protection : Short Circuit & 5A Fuse With Fuse Holder
• Terminal Socket : 4mm Safety Type
• Unit Type : Panel H1

CONNECTING SAFETY LEAD SET

• The set consists of 2 type lead set and 2 type bridging plug set in 5 different coded colors and lengths chosen to allow the realization of all experiment manual.
• Leads are capable of 15A current safety plugs.
• Safety Terminal Socket (4mm): 25cm x 15 units; 50cm x 20 units; 100cm x 15 units
• 2mm Test Leads Set: 45cm x 12 units
• 19mm Bridging Plug Set x 10 units
• 19mm Bridging Plug Set (Stackable) x 10 units

THREE PHASE AC POWER SUPPLY

• Output Type : AC Fixed Output Voltage
• AC Input Voltage : 3°240/415V+N+PE
• Transformer Output : 3°0-45-90V
• Output Current : 2.0A
• Circuit Breaker, E.L.C.B, Power Switch, Emergency Switch, Pilot Lamp
• Protection : Short Circuit & 5A Fuse With Fuse Holder
• Terminal Socket : 4mm Safety Type
• Unit Type : Panel H4

DIGITAL DC VOLTMETER

• Modular design
• Measurement range : 0 ~ 600Vdc
• Display : 3 ° digits 14.2 mm LED
• Accuracy : ° 0.2% ° 1 digit
• Resolution : 1V
• Input impedance : 1M°
• Power source : 220Vac, 50/60 Hz
• Unit Type : Panel H1
• Terminals: 4mm Safety Sockets (Color Coded)

DIGITAL DC AMMETER

• Modular design
• Measurement range : DC 0 ~ 10 A
• Display : 3 ° digits 14.2 mm LED
• Accuracy : ° 0.3% ° 1 digit
• Resolution : 0.01 A
• Input impedance : < 0.1°
• Power source : 220Vac, 50/60 Hz
• Unit Type : Panel H1
• Terminals: 4mm Safety Sockets (Color Coded)

DIGITAL AC VOLTMETER

• Modular design
• Measurement range : 0 ~ 600Vac
• Display : 3 ° digits 14.2 mm LED
• Accuracy : ° 0.2% ° 1 digit
• Resolution : 1V
• Input impedance : 1M°
• Power source : 220Vac, 50/60 Hz
• Unit Type : Panel H1
• Terminals: 4mm Safety Sockets (Color Coded)

DIGITAL AC AMMETER

• Modular design
• Measurement range : AC 0 ~ 5A
• Display : 3 ° digits 14.2 mm LED
• Accuracy : ° 0.3% ° 1 digit
• Resolution : 0.01 A
• Input impedance : < 0.1°
• Power source : 220Vac, 50/60 Hz
• Unit Type : Panel H1
• Terminals: 4mm Safety Sockets (Color Coded)

THREE PHASE POWER QUALITY METER

• Modular design
• Display Type: HD LCD Display
• Real-Time Measurement
• Phase voltage: V1, V2, V3, Vlnavg Line voltage: V12, V23, V31, Vllavg Current: I1, I2, I3, Iavg, In Active power: per phase and total active power Reactive power: per phase and total reactive power Apparent power: per phase and total apparent power Power factor: per phase and total power factor Total frequency
• Energy And Demand
• Four quadrant active energy: Import, Export, Total, Net Four quadrant reactive energy: Import, Export, Total, Net Active, Reactive, Apparent demand
• Power Quality Analysis
• Voltage unbalance Current unbalance Voltage THD (Total harmonic distortion), Odd-even harmonic distortion Voltage individual harmonics, Crest factor Current THD, Odd-even harmonic distortion Current individual harmonics, K factor
• Communication
• Ethernet 10/100M network port
• RS485 communication port
• MODBUS RTU communication protocol
• Trend Logging
• Phase voltage Line voltage Current Active power Reactive power Apparent power Power factor Frequency Three-phase unbalance Active energy Reactive energy Apparent energy Phase
• Settable Logging Interval
• Logging from 1min to 60min, interval settable
• Software Accessibility
• 4 Tariffs (DataLog) Sharp, peak, flat, valley in different season and schedule (TOU)
• Power Management Software Interface
• Accuracy: °0.5%
• Protection: Fuse
• Power Supply: AC240VAC, 50Hz
• Terminals: 4mm Safety Socket
• Unit Type : Panel H2

POWER MANAGEMENT SOFTWARE

• PC software for power quality meter
• True-RMS measuring parameters
• ANSI and IEC 0.2 accuracy class
• Power quality analysis
• 4 quadrant energy
• Data logging
• Measure individual harmonics from 2nd to 49th
• TOU, 4 Tariffs, 6 Seasons, 6 Schedules

EXPERIMENTAL TABLE

• Workbench Table Top
• Material: Compress Board

Dimension :

• Thickness: 25mm
• Length: 1500mm
• Width: 800mm
• Height: 800mm

Support Structure
Material :

• 2– x 2– Hollow Steel Epoxy Coated
• Thickness: 2mm
• Lower Cabinet with 3 Storage Drawers with center Lock
• Castor Wheels (Front With Lock)

EXPERIMENT PANEL FRAME

• Din Standard A4 With Two Shelves
• Side Frame: T Shape
• Horizontal U-Bar: Top and Bottom
• Horizontal H-Bar: Centre
• Material: 2mm Thickness Steel Epoxy Coated

Dimension :

• Length: 1450mm
• Width: 20mm
• Height: 300mm

Complete with Test Lead Set Holder

• Two Location: Lef & Right
• 7 Slots for 4mm Stackable Safety Test Lead Sets