AC Motor Speed Control using TRIAC

BLDC Motor Control Trainer (VPL-BDCM)

BLDC Motor Control Trainer (VPL-BDCM) The BLDC motor uses the quadrature encoder for rotor position sensing. The quadrature encoder output consists of three signals. Two phases, A and B, represent the rotor position, and an index pulse defines the zero position. Brushless DC motors typically use trapezoidal control, but field-oriented control is used as well. PMSM motors typically use field-oriented control only. Trapezoidal BLDC motor control is a simpler technique than field-oriented control; it energizes only two phases at a time. Only one PID controller is required for torque control, and as opposed to field-oriented control, there is no need for coordinate transformations using Park and Clarke transforms. BLDC motors are commonly used in these E-bikes. The best part is that these BLDC motors have hall sensors built-in. The Hall effect sensors, which are used to detect the rotors position, can also be used to determine speed by measuring the time it takes for the sensors to switch. The BLDC Motor is Popularly known as a scooter motor or general application motor. It is extremely durable and reliable. It's Commonly found in 48/60V scooters and It's also been a proven motor in robotics. SPECIFICATIONS: Microcontroller based Motor Controller Rated Voltage: 48V Maximum Power: 1500W Maximum Speed: 3200 RPM Winding Resistance: 9.2 Ohms Winding Inductance: 24mH Front panel consists of Digital Meter, RPM Meter and circuit is printed on. 4 Pole Rotor and 3 Phase motor Fixed on a mechanical frame Spring balance loading with dial indication Hall sensor for position sensing To study the working of BLDC Motor To study the speed control of BLDC Motor To study speed torque characteristics Manual with detailed operation and experiments.

Chopper Fed DC Motor Drive (VPL-DCM)

Chopper Fed DC Motor Drive (VPL-DCM) Experiments: To obtain speed-torque characteristics and efficiency of a dc shunt motor by direct loading. To obtain efficiency of a dc shunt machine by no load test. Setup Includes: Experiment Trainer Board that Contains: Input : 220V AC Circuit Printed onboard Custom Designed Sticker with relevant circuit diagrams and meters value printed On-board Digital DC Voltmeter and Ammeter On-board RPM Meter with Proximity sensor SCR based chopper circuit for DC motor drive Variable DC, Fixed DC Mains LED Indicator DP MCB 16A Box : MS Box Powder Coated Motor Setup: Type : DC Shunt Motor Capacity : 1 HP Winding : Shunt Type R.P.M. : 1500 Volts. : 230V Insulation : Class ‘B’ Loading arrangement: Mechanical Pulley: Aluminium casted Connections : All the terminals of armature and shunt field shall be brought over to a sheet, fixed to terminal box, fitted on top of Motor. Fitted with mechanical loading arrangement

Fault Analysis of 3-Phase Alternator (VPL-3PAFA)

Fault Analysis of 3-Phase Alternator (VPL-3PAFA) Alternator Set Up : 1 HP DC motor coupled with 1KVA / 3 phase / 1500rpm /Salient pole (or Cylidrical) Rotortype / Rotating Field Alternator. With all three phase terminals are brought out and terminated out side for impedance measurement experiments. Control Panel with Fault simulation facility DC drive is provided for DC motor speed control One number of potentiometer is provided for speed adjustment One number of variable DC Voltage source of 0-200vdc @2A is provided for Alternator field excitation Digital DC Ammeter & Voltmeter is provided for Alternator field parameter measurements Digital AC Ammeter & Voltmeter is provided for Alternator stator parameter measurements Digital Speed indicator is provided for alternator speed measurement Fault simulating with Short circuit Current limiting resistor is provided for fault creation All are mounted on a nice cabinet with stickered front panel 230VAC input with ON/OFF switch

Servo Motor Trainer (VPL-DCSMT)

Servo Motor Trainer (VPL-DCSMT) TECHNICAL SPECIFICATIONS Shunt wound DC Servo motor. Motor Power: 1/4 HP DC Servo Motor Separate DC supplies for field and armature. 2 nos. of Digital volt meter 2 nos. of Digital Current meter Digital RPM meter. Belt & pulley loading for torque measurement. Two spring balance. 220 V AC line operation. 220V ±10%, 50Hz mains operated. User’s Manual with patch cords. List of Experiments Study of the torque characteristics Study of the loading effect Study of the balance measurement for torque.

Solar Photovoltaic Power Trainer Kit (VPL-PVTK)

Solar Photovoltaic Power Trainer Kit (VPL-PVTK) Power Conditioning Unit: Power Conditioning Unit: Comprises of different meters like Ammeter, Temperature Meter, Voltmeter and Power Meter to measure different parameters at different output. Suitable Charger Controller Unit to charge battery Potmeter – 3W/12 Volt Charge Controller Unit: 12 Volt/24 Volt Nominal Voltage 15 Amp. Charge Current 15 Amp. Load Current Inverter: 230 Volt/150 W output, 10-15 Volt input Various Measurement Devices: DC Ammeter 20 Amp. and 2 Amp. DC Voltmeter of 20 Volt and 200 Volts AC Ammeter 2 Amp. AC Voltmeter 250 Volt Temperature Meter: –100°C to 200°C Battery: 4.5 AH/12V Load Box *(with AC and DC Loads) Radiation Meter Handout The unit has all measuring devices to measure voltage, current, temperature etc. Instruction Manual for how to connect the modules for various Experiments

Solar Power Generation Trainer-3KVA (VPL-PVT-PGT3K)

Solar Power Generation Trainer-3KVA (VPL-PVT-PGT3K) SPECIFICATIONS It can be used as solar training system and also power generation. Training system control panel has built in DC voltmeters, DC ammeters, AC multifunction meter(for AC current, voltage, power, frequency) Training system has control panel built in protection circuit for battery & solar panel LCD display to monitor the system Pure sinewave 3KVA output in the inverter/backup mode. Heavy duty battery charger with current sharing Smart overload and short circuit protection Intelligent thermal management system. Test points for various sections Solar mcb and mains mcb to cut off system in case of failure. Provision of giving pwm pulses from external controller using a single switch. Main board consisting of controller, driver, mosfet etc. Transformer Training System Includes Solar Panel: 250 Wp – 12 Nos. Battery 12 Volts/ 100 Ah : 4 Nos. Inverter: 3KVA MPPT Charge Controller : 1 No. Control panel for experiments equipped with meters, connecting terminals and switches Input Voltage : 190~260V AC Output Voltage on Mains mode : same as input Output Voltage on UPS mode : 210~245V Output Frequency on UPS mode : 50Hz ±0.1Hz Experiments & Analysis To study and observe the feedback signal of transformer. To study and observe the presence of AC mains signal. To study and observe the battery charging. To study and observe the buzzer signal. To study and observe the presence of solar panel. To study and observe the presence of inverter ON. To study and observe the output of PWM signals. To study and observe the mains output signal Measurement and Analysis of Different parameters of Solar PV Module Open circuit voltage (Voc) and short circuit current (Isc) of Solar PV module Parameters measurement with parallel Solar PV modules Parameters measurement with series Solar PV modules I-V characte..

SRM Motor Control Trainer (VPL-SRMT)

SRM Motor Control Trainer (VPL-SRMT) SPECIFICATIONS Microcontroller based Motor Controller 8/6 poles number Rated Power: 0.5 HP or higher Rated speed: 1500 rpm or higher Rated Torque: 5.2N.m. Rated Current: 4.75 A. Driver: AC 230volt Motor: 285V Front panel consists of Digital Meter, RPM Meter and circuit is printed on. 4 Phase motor Fixed on a mechanical frame Spring balance loading with dial indication Hall sensor for position sensing To study the working of SRM Motor To study the speed control of SRM Motor To study speed torque characteristics Manual with detailed operation and experiments.

Wind Energy Training System (VPL-WET)

Wind Energy Training System (VPL-WET) TECHNICAL SPECIFICATIONS: Generating unit Rated power: 400W Max power: 500W Rated wind speed: 11 m/s Start up win speed: 2.5 m/s Rotor diameter: 1.33 m Number of blades: 3 Blade material : Carbon fiber Body : Magnalium framework Rotor speed: 500 – 1000 rpm Generator : permanent magnet, 3-phase with rectifier. Rated voltage: 12V DC or 24 V DC Brake : electromagnetic brake Surface protection : Aluminum oxide nd plastic coating. Controller : high function external charge controller. Artificial Wind generating unit (Optional) Induction motor Power rating : 1.5 (HP) Generated wind speed range : 0-15 m/sec Control Unit Battery Capacity : 42 (Ah)/12V Inverter Rated power : 650(VA) Input voltage : 10-15(V) Charge Controller Rated power : 400(W) Rated load voltage : 12 (V ) DC voltmeters/ammeter AC voltmeters/ammeter Power analyzers Current rating: 18 A Tachometer with sensor Anemometer Accessories: Manual FEATURES Wind speed can be controlled externally Turbine can be replaced System can be expanded to develop a hybrid system Performance can be evaluated from low wind speed to high wind speed Ordering Options Lab setup without Industrial Wind Blower Lab setup with Industrial Wind Blower Wind Mill on top of roof & Solar setup in Lab.

AC Motor Speed Control using TRIAC (VPL-ACM)