UNIVERSITY OF CALICUT (INSTITUTE OF ENGINEERING AND TECHNOLOGY) IET/A/EE/Purchase/2009. Thenhipalam P.O. Dated. 03-02-20. TENDER NOTICE Sl. No Sealed competitive tenders are invited for the supply of the following items for the Electrical Engineering Lab in Calicut University Institute of Engineering and Technology. Item name Specification No of Units required Trainer kit for using Kelvin's Double Bridge KELVIN'S DOUBLE BRIDGE [VKB-02] This bridge is designed to study the working principle and to find the unknown value of low value resistance. Four primary arms provided to balance the bridge (Two arms are range selections) * Two secondary arms are provided for range adjustment. * Provisions to connect the unknown resistance at one arm * Range of Measurement : 0.S - 0S * Tolerance: ±5% * Connector provisions to connect the standard value of unknown resistance externally. * Built-in power supply * Required patch Chords are provided * Technical Reference Manual Note : demonstration if necessary
2 Trainer kit for using Wheat Stone Bridge 3 Trainer kit for using thermocouple module (Aim: Thermocoupl e based ON OFF controller) 4 Trainer kit for using hall effect transducer (Aim: Measurement of current/ voltage using Hall effect transducer) WHEAT STONE BRIDGE [VWB-0] This trainer is designed to study the working principle of the bridge and to find the unknown values of Medium resistances (50S-MS) * Four arms with one unknown arm to connect the unknown resistance * Two range selection arms provided to select the nearest range of unknown value. * Range of Measurement : 50S - MS * Accuracy (Min to Max.) :±0.2 ± 5S * Tolerance : ±5% * Galvanometer (Range : -0V to +0V) 3 provided to indicate the Balance conditions * Built-in power supply * Technical Reference Manual * Required patch Chords are provided Note : demonstration if necessary THERMOCOUPLE MODULE [ITB-05-CE] * One `J' type Thermocouple as a temperature sensor * One AD590 sensor for cold junction compensation * Signal conditioner for `J' type thermocouple output: 0-5V * Built in Instrumentation power supply * 3½ digit digital indicator to display the temperature. * Water bath as heat source * Offset variable provision * Thermometer provided to monitor the temperature * Mounted in a elegant powder coated cabinet * Logical diagram in the panel * Detailed documentation Note : demonstration if necessary HALL EFFECT TRANSDUCER [VHET-0] Voltage Measurement: * One Voltage Signal conditioner provided to interface with ADC * Output Voltage Range: (0-5V) * One Analog meter provided to indicate the input voltage. Current Measurement: * One Current Signal conditioner provided to interface with ADC * Output Voltage Range: (0-5V) * One Analog meter provided to indicate the input current. * Built-in Power Supply * All are mounted in closed metal cabinet. Accessories: * One Auto Transformer provided to vary the input voltage and current Note : demonstration if necessary
5 Trainer kit for using torque measurement trainer(aim: Measurement of physical quantities Torque) 6 Trainer kit for using angular displacement module(aim: Measurement of physical quantities angle) TORQUE MEASUREMENT TRAINER [ITB-03-CE] This trainer consists of Torque sensor, Signal conditioner, Digital Indicator and power supply to study the characteristics of torque sensor. * Reaction type torque transducer of Range Kg. with fulcrum arm. * Slotted weights with pan provision to applied the load in steps of 00 gms. * A mechanical holder provided to hold the sensor with the table rigidly * A 3½ digit digital indicator to display the torque * Built-in Instrumentation power supply * Offset and gain variable provision. * Mounted in a sleek Cabinet. * Detailed documentation Note : demonstration if necessary ANGULAR DISPLACEMENT MODULE: [ITB-04] This trainer module consists of angular transducer with signal conditioner mounted in a cabinet. One 3½ digital indicators to display the position of the transducers in the range of (0-300º) * One angular displacement transducer (Resistive Type) * 0-360º protector. * Signal conditioner for Angular displacement transducer * A 3½ digit digital display to indicate the angle position of the transducer from (0-300)o * Test points are provided to measure the output of the signal conditioner * Built in instrumentation power supply * All are mounted in a fine fiber cabinet * Detailed Documentation Note : demonstration if necessary 7 Brake Drum Should be made of Aluminium alloy as per the details en Trainer kit for using Kelvin's Double Bridge closed Figure and dimensions are given 5 8 Potable& stretchable screen for LCD/HOV projector 4 x 6 size stand with screen
9 CRO Make:803 caddo 25MHz, 2 channel, 4 trace with microcontroller based, 0 Signal Generator Make: 406 caddo 2 MHz, microcontroller based function generator 2 Signal Generator Make: 406 caddo 2 MHz, microcontroller based function generator 2 2 LCD projector Model No. 20S 2500 Ansi lumens, 2200: contrast ratio, Three year product warranty and one year lamp warranty. Support direct from Dell
3 Trainer kit for using PLC PROGRAMMABLE LOGIC CONTROLLER TRAINER WITH DEMONSTRATOR : [VPLCT-0S] This trainer consists PLC, Demonstration panel, programming software provided to study the concepts of PLC. PLC Specification : i). PLC Make: Siemens Model: CPU 22 * Bit processing speed 0.22 us * Timers, counters each 256 *6 Digital inputs *4 Nos Digital outputs (24V DC ) * Program memory 4KB, Data memory 2KB *4 High speed counter 30 KHz *2PWM outputs in 20KHz * Battery back up Available * RS 485 Communication interface * Real time Clock optional * Integrated 8 bit analog Potentiometer ii). Demonstration Panel: This Demonstration panel consists of all necessary connectors switches and LEDs provided to interconnect by patch chords and study the PLC *6 SPDT Switches provided to simulate the Digital inputs. *4 LEDs provided with fuse protection to simulate * the digital outputs. * One PWM termination Connector. * One 24VDC Source Provided * One HSC Counter provided for external interface. * One RUN/STOP Switch is provided * Connectors provided for external interface application. * All the components are mounted on an attractive powder coated metal frame *Mimic diagram with screen printing provided in the panel. iii) Programming Software : * Windows based Power full software provided to write program in ladder languages. * Siemens PLC programming software. # Step7 200. # IEC 63 standard iv)interface Cable A special point to point interface cable provided for communication
4 Trainer kit for characteristic s of SCR (Aim: To plot static & dynamic characteristic s of SCR).IGBT, MOSFET, SCR, TRIAC, DIAC CHARACTERISTICS STUDY TRAINER (PEC6M-A) * Basic static characteristics study trainer. * LM 723 based variable DC power supply (0-30V) for SCR Vak. * LM 723 based variable DC power supply (0-2V) for gate voltage of all devices. * Separate section for SCR/TRIAC characteristics. * Separate section for IGBT/MOSFET characteristics. * Two No s fixed load resistor for all devices. * Four No s potentiometer to vary all voltages. * LED indication for all power supply. * Three No s. digital multimeter for measurement of device parameters. * 230V AC input with Power ON/OFF switch. SUGGESTED EXPERIMENTS :. Study of VI characteristics of SCR. 2. Study of VI characteristics of TRIAC. 3. Study of Transfer characteristics of MOSFET. 4. Study of Transfer characteristics of IGBT, 5. Study of Dynamic characteristics of MOSFET. 6. Study of Dynamic characteristics of IGBT. 2.TRANSIENT CHARACTERISTICS OF SCR AND MOSFET (VPET-26) a). Transient Characteristics of SCR : * One SCR (TYN 62) with proper heat sink * Turn-ON transient (OR) turn off transient characteristics can be studied. * IC Based square wave generation for VAK and VGK * One No. of fixed load resistor. b). Transient Characteristics of MOSFET : * One IRF840 MOSFET with heat sink * One no. 5V/30V power supply (Built-in) for VDS * One no. of 555 based square wave generation with transistor driver circuit * One no. of fixed load resistor. c). Power Supply : * 230V AC Input, ±5V DC for control circuit * Power ON/OFF switches with indication.
5.Trainer kit for phase control using R and RC firing (Aim: Analysis of load voltage for different firing angles for R & RCfiring) 2.Trainer kit for UJT Trigger circuit with Single phase controlled rectifier (Aimm: Obtain load voltage waveform) UJT, R, R-C CIRCUITS TRIGGERING FIRING MODULE (PEC4M2) * Consists of three types of basic firing circuit to trigger SCR. * Separate sections for R - firing, RC - firing, UJT firing circuit. * 24V AC / AMP provided for firing circuit input voltage. * One potentiometer used to vary the firing angle of UJT firing circuit. * One potentiometer used to vary the firing angle of R - firing circuit. * One potentiometer used to vary the firing angle of RC - firing circuit. * One no. toggle switch for ON/OFF 24VAC. * Four No s firing pulses terminated on the front panel for connecting external device module. (UJT firing circuit) * :: Pulse transformer used for UJT firing circuit pulse isolation. * One no. SCR with snubber circuit forms half wave controlled converter circuit for checking all three firing circuit. * 230V, 50HZ AC input, fuse provided for over load protection. * One no. rocker switch with LED Indication for power ON/OFF. SUGGESTED EXPERIMENTS :. Study of UJT firing circuit. 2. Single phase half wave controlled converter using UJT firing. 3. Single phase half wave controlled converter using R - firing. 4. Single phase half wave controlled converter using RC - firing. Obtain the load voltage wave form
6 Trainer kit for AC Voltage Controller using TRIAC (Aim: speed control of fan using triac) AC PHASE CONTROL USING SCR, TRIAC & DIA MAKE: VI MICROSYSTEMS MODEL:PEC4M22 This trainer module consists of two separate section a. UJT based firing circuit for SCR AC Regulator b. DIAC, R & C based firing circuit for TRIAC AC Regulator c. Universal motor as load (optional) UJT based firing circuit for SCR AC Regulator : 24V AC for UJT firing circuit (24V AC obtained through 230/24V AC, 2A step down transformer) One potentiometer is used to vary the firing angle Two isolated pulses for SCR Isolation obtained by pulse isolation transformer Two no. of SCR with heat sink (600V,2A) provided for power circuit Power circuit input volt 0-230V AC (External) One lamp (60W or 00W) for load or fan (optional) b. DIAC, R & C based firing circuit for TRIAC AC Regulator R, C & DIAC firing for TRIAC One TRIAC with heat sink (600V/2A) 230V operation One lamp load or fan(optional) One potentiometer is used to vary the firing angle Output voltage 0-230V AC
7 Trainer kit for Single Phase fully controlled SCR Bridge circuit (Aim: Study the operation of single phase fully converter with RL load & with & without freewheeling diode) SINGLE PHASE SCR BRIDGE CONVERTER (PEC4M4FW) * Consists of firing circuit, SCR power circuit and load. * Line synchronized IC based linear firing circuit. * Line synchronization achieved by step - down transformer. * Four no. firing pulses to trigger four SCRs. * :: Pulse transformer used for pulse isolation. * One No. Potentiometer used to vary the firing angle (80-0 ). * Carrier logic implemented carrier frequency 4KHz. * One no. toggle switch with debouncing logic for pulse ON/OFF. * Provision to control the firing angle through external [0-5V]. * Power circuit consists of four no. SCR with fuse protection. * Anode, Cathode, Gate terminals are terminated in the front panel for user connection. * 24V AC, AMP provided for power circuit input with ON/OFF switch. * One no. fixed R, L load provided. * 230V, 50Hz AC input with ON/OFF rocker switch, fuse for over load. SUGGESTED EXPERIMENTS :. Single phase fully controlled converter with R and R - L load. Note:.demonstration if necessary 2.povision to connect and disconnect freewheeling diode
8 8086 8086/8088 MICROPROCESSOR TRAINER KIT [ MICRO - 86/88 LCD ] Processor : * Intel 8086/8088 CPU at 4.77 MHz clock speed. Memory : *6 KB for monitor EPROM upgradable to 64 KB *6 KB RAM expandable to 64 KB * Battery backup provision for RAM up to 64 KB. Keyboard & Display : * 6 x 2 Alpha numeric LCD Display * 0 Keys IBM Compatible Keyboard. Timer, Parallel I/O, Coprocessor, Interrupt and Bus Expansion: * 48 TTL I/O lines brought out to two nos of 26 pin FRC Connector. * Number of standard RS232C compatible serial port brought out to a 9 pin D type male connector. * One RS232 Cable provided. * 3 Channel 6 bit counter/timer using 8253 terminated in a 0 pin connector (One Channel Used for baud rate generation.) * Fully buffered address data and control signals terminated at a 50 pin header (VXTBUS) for interfacing VBMB Series of experiment boards and bus expansion. * 8 Nos. of Interrupts using 825 Special Features : * Kit Operates with a single +5V/D.C supply * The Kit and the Power Supply are mounted on a attractive light Gray Color fiber glass cabinet with fiber glass top cover Software * Built-in line assembler and disassembler * Powerful debugging monitor to develop user program. Documentation Support : (2 Manuals) * MICRO 86/88 Technical Reference Manual * User/Student's Work Book. Built-in SMPS Power Supply * Input: 230V A.C. * Output: +5V / 3.5 A, +2V / 50 ma. 2
9 805 805 MICROCONTROLLER TRAINER KIT [MICRO-5 LC LCD] Processor : * 89C5 Microcontroller, 2MHz Clock speed Memory : * Program Memory RAM-32KB * Data Memory RAM-32KB * Program Memory EPROM-32KB Peripherals Keyboard and Display *6 x 2 LCD Display *IBM PC Keyboard is provided and also reset and interrupt keys are provided (RREKey) Parallel I/O Bus Expansion * One no. of 8255 connections are terminated in one 26-pin FRC header (24 I/O lines) * One VXT-Bus (50 pin FRC connector) for interfacing VBMB series of experiment board and bus expansion * Microcontroller port lines are terminated with one 40-pin FRC header Digital I/O * On board 8-digital inputs can be given through 8-Way dip switch * On board 8-digit outputs can be visible through SMD LEDs * The port lines PI used as input (switch) or output LED (selectable hardware) Special Features : * Software single stepping of user programming by instruction for software debugging (at same time user interrupt is not access) * Housed in a sleek plastic cabinet. Serial Port : *On chip serial port will be terminated in 9 pin D Male connector Built-in Power Supply (Multi output) SMPS : * Input : 230V AC * Output : +5V/3A, +2V/0.5A Battery Backup : * No. of 3V lithium battery / 3.6V NICD Battery Documentation Support (2 Manuals) : * Micro - 5 LC User manual * Micro - 5 LC (LCD) technical reference manual 2
20 2 ADC 8 CHANNEL ADC INTERFACE BOARD : [VBMB-003] *Incorporates ADC 0809 *Start of Conversion by manual switch or software *End of Conversion (EOC) monitored through *Interrupt / Polling *Display of digital data using LED's *All the 8 channel analog inputs terminated at *Screw type connector. *Trimpot is provided on-board to channel 0 or 3 or 6 *Provision for test points & fault analysis points *50 Core Cable *All Address, data and control lines are terminated in a 50 Pin FRC OEN make male connector to interface with VXT bus DAC 2 CHANNEL DAC INTERFACE BOARD : [VBMB-002] * Two numbers of DAC 0800 * Analog Output: +5V to -5V * DAC outputs are terminated at a suitable connector available on-board * Provision for test points & fault analysis points. * All Address, data and control lines are terminated in a 50 Pin FRC OEN make male Connector to interface with VXT bus. *50 Core Cable 2 2 Tender forms can be down loaded from the University website www.universityofcalicut.info or collected from the Principal, Calicut University Institute of Engineering and Technology at office hours. Cost of Tender form: Rs.450/- EMD : % of the quoted amount in favor of Finance Officer, University of Calicut. The material should be supplied at IET, Kohinoor within 5 days from the date of receipt of supply orders. The rates quoted should be inclusive of all taxes, charges and transportation etc. Sealed and super scribed tenders should reach the undersigned on or before 8-02-20, 4 PM. PRINCIPAL