Frax Electrosystems

+ Power Electronics Lab Equipments

Static Characteristics of SCR, DIAC, TRIAC, MOSFET & IGBT
SCR both converter and inverter grades
Power rectifier diodes ordinary and fast recovery
Triac Power circuit & triggering circuit
UJT triggering circuit
Single Phase and three phase bridge triggering circuits. (Converter type)
Single Phase Mc-Murray inverter power circuit and triggering circuit
DC-Chopper power circuit and triggering circuit
Single Phase half and fully controlled converter power circuit
Three Phase half and fully controlled converter power circuit
Isolation units – (a) Pulse amplifier (6 in 1 and 8 in 1); (b) Optocoupler
LC commutation units
Forced commutation study unit
Single phase Cyclo Converter power circuit and triggering circuit
Single phase Dual Converter power circuit and triggering circuit
Jones Chopper power circuit and triggering circuit
Chopper using power MOSFET
Series and parallel Inverters
Single phase transistorized PWM Converter / Single Phase transistorized Bridge Inverter
Closed loop DC motor speed control unit
G.T.O. Thyristor Chopper / IGBT module and driver circuit
Three Phase Thyristorised Mc-Murray Bedford inverter
Three Phase IGBT based PWM Inverter
DC & AC motors
Kits for Power Electronics lab experiments
SCR Turn-On Circuit using Digital triggering
Speed Control of universal motors / Separately / excited DC motors
Speed Control of Stepper Motor Unit
Auxiliary Commutation Module
Three-Phase AC Voltage Controller Unit
Speed Control of wound Rotor Induction Motor

+ Control Lab Equipments

Time Response and Frequency Response of Second Order System
Closed loop system response for PID Simulation
Speed control of DC Motor using closed loop feedback system
Speed control of SC Motor using closed loop feedback system
Study of compensating Network (Lead-Lag Network)
DC Servo motor Speed Torque characteristics unit
AC Servo motor Speed Torque characteristics unit
Synchro Transmitter-Receiver unit
PID Controller (Analog/Microprocessor Based)
DC Position Control System

+ AC / DC Drives

Three-Phase Induction motor drives, Viz., Toshiba, Siemens etc.
Brushless DC Drive, Viz., ABB

+ IC Trainer Kits(Digital & Analog) / Decade RLC Boxes

Analog/Linear IC Trainer Kit: Breadboard, 555, 741, 723, 565 & allied components
Digital IC Trainer Kit: 16 pin, 20 pin, 28 pin, 40 pin ZIF sockets, Breadboards with 2mm sockets, 4mm terminals & BTI-15 terminals
Decade Resistance Box-4, 5 & 6 dials with 1% and 3-5% tolerances
Decade Inductance Box-4, 5 & 6 dials with 1% and 3-5% tolerances
Decade Capacitance Box-4, 5 & 6 dials with 1% and 3-5% tolerances

+ DC Regulated Power Supply Units / Servo Voltage Stabilizers / UPS

Variable:

0-30V; 1/2/5 Amps (Single & Dual)
0-300V; 1/2/5 Amps (Single & Dual)

Fixed: +15V, 1/2/5 Amps; +5V, 1/2/5 Amps
Multi-Output: 0-30V; 1/2/5 Amps; +15V, 1/2/5 Amps; +5V, 1/2/5 Amps
Normal Range: 170V – 270V upto 15KVA Single Phase
Wide Range: 140V – 300V upto 15KVA Single Phase
On-Line upto 15KVA Single & Three phase
Off-Line upto 5KVA Single phase
Built-in Battery models upto 2KVA
Domestic Inverters upto 5KVA

+ Digital / Analog / VHDL Communication Lab Trainers

DCL-001-Analog Signal Sampling & Reconstruction
DCL-002-4 Channel TDM Pulse Amplitude Mod & Demod
DCL-003-2 Channel PCM Transmitter
DCL-004-PCM Receiver to be used with DCL-003
DCL-005-Data Conditioning & Carrier Mod Transmitter
DCL-006-Data Reconditioning & Demod to be used along with DCL-005
DCL-007-PAM-PWM-PPM Pulse Mod & Demod
DCL-008-Delta Modulation & De-Modulation, Liner, CVSD
DCL-009-Data Modem Trainer : (2 units); Z-80 based : Data transmission with RS232 Link to PC & FSK
DCL-010-Optical Fiber Trainer System

+ CCN Lab Trainers (Data Communication / LAN Trainers)

Local Area Networking (LAN) Trainer

Following Experiments can be performed on this Trainer Kit

Point-to-Point Communication
Multicast/Broadcast Communication
Networking Fundamentals
Token Bus-IEEE 802.4 Stnadard
Network Management/Token Management
Networking Protocols like Stop and Wait, Go-back-N, ARQ

Data Communication Trainer

Serial Communication standard in Synchronous and Asynchronous using:

RS-232C Media
Twisted Pair
Fiber Optic Cable

Parallel Communication using:

8-bit Parallel Port

Data Communication Protocol

Stop and Wait Protocol
Go-to-bank N-Protocol
Selective Retransmission

PC-to-PC Communication

Data Encryption

+ Embedded Systems Lab Trainers

Lists

+ Communication & Networking Lab Trainers

Lists

+ Cathode Ray Oscilloscopes/DSO

Analog – 20MHz, 25MHz, 30MHz, 60MHz, 100MHz
Digital – upto 150MHz
Digital Storage – upto 150MHz
Power Scopes & Differential Modules

+ Function Generators/Spectrum Analyzer

Upto 20 MHz with sine, square, triangle waveforms / 1GHz, 3GH

+ Analog & Digital Multimeters

Handheld Analog Multimeters
3.5 and 4.5 digits handheld Digital multimeters

+ Poratable and Desk Top Meters

Ammeters, Voltmeters, Wattmeters, Frequency meters, Galvanometers

+ AC / DC Bridges / Potentiometer

BRIDES / POTENTIOMETERS Wheatstone, Kelvin Maxwell, Anderson, De-sauty, Schering Bridges. Crompton DC Potentiometers, AC Potentiometers, Volt Ratio Box, Standard Cell, Standard resistances, Spot reflecting galvanometers.

+ Dimmerstats / Isolation Transformers

Single Phase & Three Phase upto 20KVA
Single Phase & Three Phase upto 10KVA with suitable tappings

+ Loading - Rheostats / Capacitors & Inductors

Single Phase & Three Phase upto 20KVA
Single Phase & Three Phase upto 10KVA with suitable tappings

+ Instrumentation Lab Trainers

Strain / Displacement / Temperature / Load / Pressure / Torque / speed Measurement module or Trainer
L.D.R. (Light Depended Resistor) Trainer
Resistance Measurement Trainer / Piezo Electric Trainer / Capacitance Trainer
Level Measurement Trainer / Rotometer Trainer / Module
Inductance Trainer / Orifice Meter Trainer
Current to Pressure / Pressure to Current Trainer
Vibration Measurement Trainer / Dead Weight Pressure Gauge
Bourdon Gauge Trainer
Instrumentation Tutor Part – 1, 2, 3 & 4
PLC Trainer
Different Pressure Transmitter Trainer

+ Motors & Generators

1 Phase / 3 Phase, D.C. Shunt Generators / Motors
1 Phase / 3 Phase, D.C. Series / Compound Generators / Machines
1 Phase / 3 Phase, Squirrel Cage / Slip Ring Induction motors
Synchronous / Alternators – Motors / Machines

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