Supply Of Equipment For Electrical Engineering Lab At The Government Polytechnic, Bhagalpur-1. Microprocessor 8085 Trainer kit Single board systems with 8K RAM, ROM memory with battery backup, 16X4,16 X2, LCD display, PC keyboard interfacing facility, Hex keypad facility, single user cross c-compiler, RS- 232, USB, interfacing facility with built in power supply. 2. Microcontroller 8051 Trainer kit Technical Specification Single board systems with 8K RAM, ROM memory with battery backup, 16X4,16X2, LCD display, PC keyboard interfacing facility, Hex keypad facility, single user cross c-compiler, RS- 232, USB, interfacing facility with built in power supply. 3. CRO Bandwidth AC l0Hz~20MHz(-3dB), DC~ 20MHz (-3dB), Xl0 Probe 4. 7-segment LED Display 7-segment LED Display: -0.56 in 1-digit, common anode/common cathode 5. Silicon Rectifier Diode 1N4007: 1A, 1000V. 6. Germanium Diode 1N34A: 50mA, 45V 7. Schottky Diode 1N5817/1N5819: 1A, 20-40V 8. Zener Diode 1N4733A - 5.1V, 1W 9. Light-Emitting Diode (LED) Red 10. Green 11. Blue 12. Digital Multimeter (DMM) Measures DC Voltage (mV to V), DC Current (µA to A), Resistance (Ω to MΩ), Continuity, Diode Test mode. Display: LCD. Accuracy: Decent accuracy for hobby/educational use. 13. Resistors 100Ω 14. 220Ω 15. 1kΩ 16. 10kΩ 17. Breadboard Standard solderless breadboard, 400 or 830 tie-points. 18. Connecting Wires / Jumper Wires Male-to-male 19. male-to-female 20. female-to-female 21. Curve Trace Dedicated instrument for plotting I-V characteristics of components. 22. Step-Down Transformer 230V AC (primary) to 9V-0-9V AC or 12V-0-12V AC (secondary)center-tapped transformer 23. 230V AC to 12V AC (non-centre -tapped) 24. Potentiometer 10kΩ or 20kΩ 25. Electrolytic Capacitor 470µF, 10-25V 26. 1000 µF, 10-25V 27. Inductor 50µH 28. 100µH 29. 200µH 30. Voltmeter 0- 600V, Moving iron type 31. Ammeter 0-50 A, Analog Ammeter 32. plug 3-pin plug 33. 2-pin plug 34. Extension Board 5 pin 35. Connecting Wires (for Transformer AC input) Insulated electrical wires (rated for 230V AC) 4mm Thickness ( 1 Coil) 36. NPN Bipolar Junction Transistor (BJT) BC547 37. PNP Bipolar Junction Transistor (BJT) BC547 38. N-channel MOSFET BS170: 39. P-channel MOSFET BS170: 40. SCR Breakover voltage 400–800 V, average current 1–12 A, gate trigger voltage 0.6–1.5 V, gate trigger current 5–30 mA, holding current 5–20 mA, peak surge current up to 100 A, package type TO-220 or TO-92. 41. DIAC Breakover voltage ±30–40 V, voltage tolerance ±3 V, holding current 5–50 mA, peak pulse current 1–2 A, package type DO-35 or DO-41. 42. IGBT FGA25N120, 1200V 43. Moving Iron Ammeter 0-2.5/5 Ampere 44. Moving Coil Voltmeter 0-150/300/600V 1. Wattmeter 0-2.5/5A, 75/150/300V 2. 0-5/10A, 150/300/600V 3. Digital/energy meter 230V, Single phase 4. Current Transformer Primary Current Rating 10A to 3000A (common lab and industrial ratings include 100A, 400A, 800A, 1000A) Secondary Current Usually 5A or 1A Accuracy Class 0.2, 0.5, 1.0, 3.0 (lower value = higher accuracy) Rated Burden 5 VA to 30 VA (depends on application and accuracy class) Frequency50 Hz (standard in India) Insulation Level Up to 11kV or more for high-voltage CTs 5. D.C. Regulated power supply 230 Volt AC to 0-30Volt DC,5Amp display for voltage and current. 6. Soldering Iron Soldering iron 230V, 30/50W, Flux for soldering and Solder filler material. 7. Digital Voltmeter Voltage DC Accuracy ± (0.09% + 2) Current AC Maximum 10 A Accuracy ± (0.09% + 1) Resistance, Max resolution 0.1 Ω 8. Galvanometer Current Sensitivity 0.9 µA/div ±10% Voltage sensitivity 270 µV/div ± 15% External Circuit resistance 200Ω 9. Phase sequence Indicator Operating voltage (AC): 50-500 V 10. Kelvin’s double bridge Range: 0.2 Micro - Ohms to 11 ohms, Accuracy: 0.1%(or ±1 Slide wire division whichever is greater),Multiplier:5Ranges(0.01,0.1,1,10 and100) 11. Wheatstone bridge Measuring Range-1.000Ω to 10.00MΩ, Measuring Arm-x 1mΩ, x10Ω +10Ωx 10+ 100Ωx 10+ 1000Ω x10 (min. one step:1Ω), Ratio Arms-x0.001x 0.01, x0.01, x0.1, x1, x10, 100, x1000 (M10, M100, M1000 Murray and Varley loop testing), Galvanometer Power Source -Three1.5V batteries(built-in), Range, ±0.1% of reading on 100Ω to 100kΩ Range, Accuracy- ±0.3% of reading on 10Ω to 1MΩ Range, ±0.6% of reading on 1Ωto 10MΩ Range 12. Voltage Transformer Primary Voltage 11kV, 22kV, 33kV, 66kV, 132kV Secondary Voltage: 110V or 100V (standard for metering) Accuracy Class- 0.2, 0.5, 1.0 (for metering); 3P, 6P (for protection) Rated Burden 10 VA to 100 VA Frequency 50 Hz (standard in India) Insulation Level Up to 765kV for EHV applications Type Electromagnetic (conventional), Capacitive (CVT), Optical (for advanced systems) 13. Single phase Electrodynamometer wattmeter 0/100/300 V, 0,2.5/5 A portable 14. 0-230V/ 260V, 8A 15. Three phase Variac 0-415V/0-460V, 15 Amps 16. Passive Components (R, L, C) Resistors in various values 17. inductors in various value 18. capacitors in various values 19. MB 102 Breadboard with Power Supply Includes a power supply module (cost ~300), jumper wires, battery clip, 830/400 tie points; supports digital IC packages (14, 16, 18, 20, 24, 28 & 40 pins, tristate, open collector & bidirectional) 20. Variable Choke coil 0- 80 mH, 21. DC Ammeter 0-5/10 A, portable analog PMMC type as per relevant BIS standard 22. DC Voltmeter 0-150/300 V, portable analog PMMC type as per relevant BIS standard 23. Digital portable LCR meter Inductance: 0.1 mH to 9999 H, Resolution: 0.1 mH, Capacitance: 0.1 pF to 9999 mF, Resolution: 0.1pF Resistance: 0.001 ohm to 1 M ohm, Resolution :0.001W 24. 3 Phase Auto Transformer 10 KVA; 0–470 V 25. Three Phase Variable Lamp Load 10–20 A; 0–10 KW 26. Rheostat 0–5000 (details not provided) 27. Three Phase Induction Motor – Cut Section Model “Cut section” model; document cites possible pricing variants (e.g., 5000 and/or 70000) 28. Three Phase Induction Motor 5 HP; 440 V; with loading arrangement; 1400 RPM; squirrel cage design 29. Three Phase Slipring Induction Motor With break drum and external resistor bank 30. Star Delta Starter –Voltage rating 415 V AC, frequency 50 Hz, motor power rating 5–75 HP (3.7–55 kW), current rating 10–100 A, control voltage 230 V AC, operating time delay (star to delta) 5–30 seconds (adjustable), contactor coil voltage 230 V AC or 415 V AC, enclosure type IP42 or IP54, insulation class F. 31. Auto Transformer Starter –Voltage rating 415 V AC, frequency 50 Hz, current rating 10–100 A, starting voltage tap settings 50%, 65%, 80%, duty cycle 10 seconds ON / 60 seconds OFF (max 3 starts/hour), transformer type three-phase, insulation class F or H, enclosure type IP42 or IP54, control voltage 230 V AC. 32. Synchronous Motor 3 HP; HISV; 3 Phase; 50 Hz; 1500 RPM 33. DC Shunt Motor 5 HP; 220 V; 1500 RPM; includes alternator with excitation (220 V DC) 34. Single Phase Induction Motor 1 HP; 220 V; 50 Hz; 1400 RPM; with drum brake and spring balance 35. Universal Motor –Voltage rating 230 V AC/DC, frequency 50/60 Hz, speed range 3000–20000 RPM, power rating 50–750 W, current rating 0.3–5 A, insulation class B or F, brush type carbon, torque 0.2–1.5 Nm. 36. Reluctance Motor –Voltage rating 230/415 V AC, frequency 50 Hz, speed 1500 RPM (synchronous), power rating 0.25–3 kW, current rating 1–10 A, efficiency 75–90%, insulation class B or F, poles 2 or 4. 37. Hysteresis Motor –Voltage rating 230/415 V AC, frequency 50/60 Hz, speed 1500 RPM (synchronous, 4-pole, 50 Hz), power rating 0.01–1 kW, torque 0.1–2 Nm, phase single or three-phase, insulation class B or F, efficiency 60–75%. 38. Linear Induction Motor –Voltage rating 230/415 V AC, frequency 50/60 Hz, power rating 0.5–10 kW, thrust force 20–200 N, speed range 0–10 m/s, number of poles 2–6, insulation class F, duty S1 or S3. 39. Stepper Motor Multiple types appear; document cites prices of 10000 and 20000 (interpretation left to the user) 40. DC Motor Motor – 5 HP, Generator- 3 kW 41. DC Ammeter Range (0-5-10A), (0-2 A), Portable analog, PMMC type as per relevant BIS standard 42. DC Voltmeter Range (0-150/300V), (0-15/30/75 V), Portable analog PMMC type as per relevant BIS standard 43. AC Ammeter Range (0-2.5-5-10A), Portable analog MI type as per relevant BIS standard 44. AC Voltmeter Range (0-75/150/300V), Portable analog MI type as per relevant BIS standard 45. DC motor Starter 3 Point/4 Point starter
