AC & DC Motor Trainer

Product Overview

The system consists of a series of modular slot-in panels modules housed in a compact epoxy coated casing. Each modules represents one or more electrical / electronic components or one block diagram of a complex circuits. All functional parts of the components are mounted inside the modules with circuit symbols / mimic diagrams screen printed on the front PCB panel and terminated at 4mm safety sockets for student experimental practice.

The machines are basically industrial models, self protect kind, with coupling half-joint, especially equipped to be suitable for student training in laboratory. For this purpose the winding ends are connected to 4 mm safety socket in a metal housing on top of which a clear synoptic diagrams as educational terminal board. The student can easily understand operation and winding connection. Also most of accessories and instruments designed in Panel System A4 high in standard.

All modular slot-in panels modules are interconnecting together by using 19mm short circuit shunt and / or 4mm stackable safety test leads sets to form the desired control circuits.

Learning Outcomes (AC Motors) :

Upon completion of this course, students able to:

1.1 Understand types of AC motor :

• Describe asynchronous motor squirrel cage rotor
• Describe asynchronous motor wound (slip ring) rotor
• Describe synchronous motor

1.2 Study the structure of asynchronous motor :

• Describe rotor and types of rotor in induction motor
• Explain connection of the rotor in induction motor
• Explain connection of the rotor resistance starting in induction motor
• Compare between squirrel cage rotor and wound (slip ring) rotor
• Describe stator
• Explain connection of the stator in star and delta connection

1.3 Understand the basic of AC motor :

• Define synchronous speed, slip and slip frequency
• Determine synchronous speed (Ns)

1.4 Know the methods of AC motor control :

Compare the characteristics of AC motor control by varying:

• Voltage
• Frequency
• Number of poles
• Rotor s resistance

1.5 Understand torque-speed curve :

• Construct the torque-speed curve for induction motor

1.6 Understand current-speed curve :

• Sketch the shape of current versus speed curve for induction motor
• State the effects on the current-speed curve when stator voltage and frequency are varied at the same rate

1.7 Understand methods of starting a motor :

Explain briefly method of starting a motor:

• Star
• Delta
• Soft Start
• Rotor Resistance

Capacitor Start & Capacitor Run Connection and Motor Direction Control:

• Forward Direction
• Reverse Direction

1.8 Understand methods of slowing down a motor :

Explain the methods of controlling a motor:

• Plugging
• Jogging / Inching
• Regenerating braking

Learning Outcomes (DC Motors) :

Upon completion of this course, students able to:

2.1 Understand types of DC motor :

Describe the basic concepts of DC motors:

• Shunt Wound
• Series Wound
• Compound Wound (Self excited and Separated excited)

2.2 Understand methods of starting and control dc motor :

• Motor directional control
• Direct-on-line starting
• Direct on-line reversing
• Manual reversing

2.3 Know the methods of DC motor speed control :

Compare the characteristics of DC motor speed control by varying:

• Voltage
• Armature Resistance
• Field Resistance

2.4 Understand torque-speed curve :

• Describe characteristics of DC motor at various torque and speed
• Construct torque-speed curve for series, shunt and compound motor

2.5 Understand methods of slowing down a dc motor :

Explain the methods of controlling a motor:

• Plugging
• Jogging / Inching
• Regenerating braking

Technical Specifications

EXPERIMENTS MODULE :

THREE PHASE INDUCTION MOTOR :

• Nominal Power: 370W (1/2HP)
• Nominal Voltage: 690V / 450V (Delta/Star)
• Nominal Current: 1.33A / 1.50A (Delta/Star)
• Nominal Speed: 1500 rpm
• Frequency: 50Hz
• Cooling Method: Self Cooling
• Terminals: 4mm Safety Socket
• Base Plate: Attachable To Break Load Unit

THREE PHASE SLIP RING MACHINE :

• Nominal Power: 350W (1/2HP)
• Nominal Voltage: 240 / 415V (Delta/Star)
• Nominal Current: 4.5 / 4.0A (Delta/Star)
• Nominal Speed: 1500 rpm.
• Frequency: 50Hz
• Cooling Method: Self Cooling
• Terminals: 4mm Safety Socket
• Base Plate: Attachable To Break Load Unit

THREE PHASE SYNCHRONOUS MACHINE :

• Nominal Power: 350W (1/2HP)
• Nominal Voltage: 240 / 415 V (Delta/Star)
• Nominal Current: 1.85 / 2.85 A (Delta/Star)
• Nominal Speed: 3000 rpm
• Frequency: 50 Hz
• Excitation Voltage: 0 ~ 110 VDC
• Excitation Current: 0.25 A
• Winding Poles: 2
• Cooling Method: Self Cooling
• Terminals: 4mm Safety Socket
• Base Plate: Attachable To Break Load Unit

SINGLE PAHSE INDUCTION MOTOR :

• Nominal Power: 350W (1/2HP)
• Nominal Voltage: 240VAC
• Nominal Current: 2.5A
• Nominal Speed: 1500rpm
• Frequency: 50Hz
• Power Factor: 0.78
• Winding Poles: 4
• Terminals: 4mm Safety Socket
• Base Plate: Attachable To Break Load Unit

THREE PHASE AC GENERATOR BRAKE :

• Nominal Power: 750W (1HP)
• Nominal Voltage: 415AC
• Nominal Current: 2.5A
• Nominal Speed: 1500 rpm.
• Frequency: 50 Hz
• Excitation: Permanent Magnet
• Cooling Method: Self Cooling
• Terminals: 4mm Safety Socket
• Base Plate: Attachable To Motor Unit

AC/DC GENERATOR BRAKE CONTROLLER :

• Modular design
• Suitable for all type of AC and DC Generator Brake up to 2HP
• Measurement Range: 0% o 100%
• Protection: Fuse
• Unit Type : Panel H2

AC VARIABLE FREQUENCY INVERTER :

• Type: 1.5KW (2 HP)
• Power Supply: Three phase 415V, 50Hz
• Power Terminals: R, S, T terminals
• Inverter Output: U, V, W
• Braking Resistor Terminals: P & B
• Panel Control Start/Stop, FWD and REV
• Terminal Control Start/Stop, FWD and REV
• Signal Input: 0-10V
• Digital Input: S1 to S5
• Analog Output: 4-20mA & AO
• Relay Output: RA RB RC
• Terminals : 4mm Safety Socket

UNIVERSAL AC/DC MOTOR :

• Nominal Power: 350W (AC/DC)
• Nominal Voltage: 240 V (AC/DC)
• Nominal Current: 3.0 A
• Nominal Speed: 3000 rpm.
• Frequency: 50 Hz
• Terminals: 4mm Safety Socket
• Base Plate: Attachable To Break Load Unit

THREE PHASE POWER QUALITY METER :

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
• communication port

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)
• Accuracy: 0.5%
• Protection: Fuse
• Power Supply: AC240VAC, 50Hz
• Terminals: 4mm Safety Socket

POWER MANAGEMENT SOFTWARE :

• PC management software; web browse data
• 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

TORQUE SENSOR MODULE :

• Motor direct coupling design
• Sensor Type: Noncontact rotation torque transducer
• Max. torque: 10Nm
• Max Rotation speed: 12000rpm
• Torque Output: Frequency
• Speed Output: Frequency
• Connection: Shaft and Coupling

TORQUE METER MODULE :

• Input: 240VAC, 50Hz 1-Phase
• Unit Type: Panel H2
• Torque range: -99999-99999 N.m.
• Torque display: 0-99999N.m
• Speed display: 0-99999
• Power consumption: 0-99999
• Standard transmitter output: Optoelectronic isolation
• Two 4mA~20mA DC current output, Output resolution ratio: 1/4000 error less than 0.2%, F.S, loading capacity: less than 600
• Serial communication port as standard configuration

TORQUE MANAGEMENT SOFTWARE :

• PC management software
• Data collection the measured data by computer serial port
• Display and save the real-time data
• Transform the saved data to TXT, EXCEL file
• By curve analyses, curve print, trend browse, report generation, report edition and report print, etc.

DIGITAL RPM METER WITH SPEED SENSOR :

• Modular design
• Display: 5 Digits
• Measurement Range: 0-99999 rpm
• Accuracy: 0.1% 1 Digit
• Power source : 240VAC, 50Hz
• Unit Type : Panel H1
• Terminals: 4mm Safety Sockets
• Speed Sensor: Inductive Type

DIGITAL AC VOLTMETER :

• Measurement range : AC 0 ~ 600V
• 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 :

• 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)

UNIVERSAL AC/DC POWER SUPPLY :

• Power Input Requirement: Three Phase 240V/415V, 50Hz
• Connection: 3P+N+PE Output terminations by using 4mm terminals socket.
• Input fed with AC 5 pin plug 32A AC Plug and Socket.
• Pilot lamps provided to indicate all live supplies.
• With On/Off Switch
• Fuse Protection.
• Fixed Single Phase AC Power Supply: 3 x 240V AC; 8A AC (Phase To Neutral; R-N, B-N, Y-N)
• Fixed Three Phase AC Power Supply: 3 x 450V AC; 8A AC (Phase To Phase; R-Y, Y-B, B-R)

Adjustable Single Phase & Three Phase AC / DC Power Supply (Simultaneously):

• 3 x 0 ~ 450VAC; 8A AC (Phase To Phase)
• 3 x 0 ~ 240V AC; 8A AC (Phase To Neutral)
• 1 x 0 ~ 450VDC; 8A DC (DC Output)
• Three Phase 5 Pin AC Plug 32A with 1.5m length 5 core power cable.

STAR DELTA STARTING SWITCH MODULE :

Modular design

• Switch load: 400VAC/15A
• Switch positions: 0-1-2 (0-Y- )
• Terminals : 4 mm safety sockets

FORWARD REVERSING SWITCH MODULE :

Modular Design

• Switch Load: 400VAC/15A
• Switch positions: FORWARD-OFF-REVERSE
• Unit Type : Panel H1
• Terminals: 4mm Safety Sockets (Color Coded)

THREE PHASE POWER SUPPLY MODULE :

Modular Design

• Power Input: 3 Phase 240V/415V, 50Hz via input 5 core cable with 5 pin AC Plug, 32A.
• Connection: 3P+N+PE.
• Protection: Earth leakage circuit breaker and miniature circuit breaker
• Complete with START and STOP Push Button
• Three Pole ON/OFF Selector Switch.
• Unit Type : Panel H1
• Terminals: 4mm Safety Sockets (Color Coded)

SELECTOR SWITCH MODULE :

Modular Design

• Switch 1: 4 Pole Selector Switch
• L1, L2, L3 and N
• Switch Load: 415Vac, 10A
• Switch 2: 2 Way Selector Switch
• Way 1: Normally Close (NC)
• Way 2: Normally Open (NO)
• Switch Load: 240Vac, 5A
• Switch 2: Key Switch
• Way 1: Normally Close (NC)
• Way 2: Normally Open (NO)
• Switch Load: 240Vac, 5A
• Unit Type : Panel H1
• Terminals: 4mm Safety Sockets (Color Coded)

CIRCUIT BREAKER (3 POLES) MODULE :

Modular Design

• Connection: 3P+N+PE
• Three Pole Circuit Breaker
• Switch Load: 10A
• Unit Type : Panel H1
• Terminals: 4mm Safety Sockets (Color Coded)

CURRENT LIMIT PROTECTION MODULE (3 UNITS) :

Modular Design

• Connection: 3P+N+PE.
• Switch Load: 415Vac,10A
• Current Setting Range: 4 ~ 6.3A (Adjustable Current Limiting)
• Complete with START and STOP Push Button
• Unit Type : Panel H1
• Terminals: 4mm Safety Sockets (Color Coded)

PILOT LAMP MODULE :

Modular Design

• 4 Units Pilot Lamp (Color: Red, Yellow, Blue & Green)
• Unit Type : Panel H1
• Terminals: 4mm Safety Socket

TIMER MODULE :

Modular Design

• Supply Voltage : 240VAC, 50Hz
• Time Range : 30 Sec
• Contact Rating : 240VAC, 5A
• Timer : 2 Units
• Timer 1 : Contact 1 (NCx1, NOx1);
• Contact 2 (NCx1, NOx1)
• Timer 2 : Contact 1 (NCx1, NOx1);
• Contact 2 (NCx1, NOx1)
• Unit Type : Panel H1
• Terminals: 4mm Safety Sockets

PUSH BUTTON SWITCH MODULE (I) :

Modular Design

• Push Button Switch 1 (NCx1, NOx1)
• Push Button Switch 2 (NCx1, NOx1)
• Push Button Switch 3 (NCx2)
• Push Button Switch 4 (NOx2)
• Unit Type : Panel H1
• Terminals: 4mm Safety Socket

MAGNETIC CONTACTOR MODULE :

• Modular Design
• 3 Pole Magnetic Contactor
• Auxiliary Switch (NCx2, NOx2)
• Unit Type : Panel H1
• Terminals: 4mm Safety Socket

POWER DRIVE (SOFT STARTERS MODULE) :

• Modular design
• Modular Design
• Connection: TP+N
• Soft Starter: 2 Phase-Controlled 3 , 415V
• Power Rating: 3HP, 4.8 A , Uc=110-230V AC/DC
• Unit Type : Panel H1
• Terminals: 4mm Safety Socket

COUPLING HUB, NYLON SLEEVE & SAFETY GUARD :

• Application: Motor & Generator
• Coupling Sleeve For Mechanical Connection Of Two Electrical Machines.

TACHOMETER :

• Range: 5 to 99,999 RPM
• Resolution:
• 0.1RPM <1000RPM
• 1RPM>1000RPM
• Display: 5 Digits, 10mm (0.4 )LCD
• Accuracy: 0.05%+1 Digits
• Photo Detection Distance: 50 to 150mm
• Battery: 1.5V AA x 4 pcs
• Memory: Last Value, Max. Value, Min. Value
• Size: 190 x 72 x 37 mm

CONNECTING SAFETY TEST 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
• 19mm Bridging Plug Set x 10 units
• 19mm Bridging Plug Set (Stackable) x 10 units

AC/DC VARIABLE POWER SUPPLY :

• Power Input Requirement: Single Phase 240VAC, 50Hz
• Connection: 3 Pin Power Cord (UK Type) On/Off Switch With Indicator
• Fuse Protection.
• Fixed Single Phase AC Power Supply: 240VAC, 50Hz (Channel 1)
• Adjustable Single Phase AC/DC Power Supply (Simultaneously) :
• 0 ~ 250VAC, 0 ~ 5A AC (Channel 2) Complete With AC Voltmeter & AC Ammeter
• 0 ~ 250VDC, 0 ~ 5A DC (Channel 3) Complete With DC Voltmeter & DC Ammeter

COMPUTER DESKTOP SYSTEM (OPTIONAL) :

• Operating system: Windows 10 Home 64
• Processor speed: 2.41 GHz
• Processor: Intel Celeron J1800 with Intel HD Graphics (2.41 GHz, 1 MB cache, 2 cores)
• Hard drive description: 500 GB 7200 rpm SATA
• Keyboard: USB wired Windows 8 keyboard
• Pointing device: USB wired optical mouse
• Network interface: Integrated Ethernet 10/100 BASE-T

ADJUSTABLE FLAT SCREEN MONITOR HOLDER (OPTIONAL) :

• Weight Up To 10kg
• Triple arms for full motion and added support
• Great for corners
• Folds flat to the wall
• Easy slide on installation
• Safety locking screw
• Cushioned pads for PC Monitor protection and improved audio

EXPERIMENTAL TABLE :

• 5 Workbench Table
• Dimension:
• Length : 1500mm
• Width : 800mm
• Height : 850mm
• Complete with heavy duty Castor Wheel (Front with lock)
• 3 Layer Drawer (Optional)

EXPERIMENT PANEL FRAME :

• Din Standard A4 With Two Shelves
• Side Frame: T Shape
• Dimension:
• Length : 1450mm
• Width : 20mm
• Height : 300mm