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supply of Equipments For Electrical Engineering Lab In The Premises Of Government Polytechnic, Nawada-1. Electric Circuit Lab (1620306) 1 Voltage Source DC 2 Digital Multimeter 3 Stop watch 4 Connecting Leads 5 Alligator Clips 6 Ammeter of different ranges 05 Nos. of Each range 7 Wattmeter, 05 Each 8 Rheostat of different size, 05 Each 9 Resister, Inductor, Capacitor of different value 10 Auto transformer 11 Resonance RLC Kit 12 Insulated Copper Wires 13 Dual Trace Oscilloscope 14 Circuit Kit for verification of Superposition Theorem 15 Circuit Kit for verification of Thevenin"s Theorem 16 Circuit Kit for verification of Norton's Theorem 17 Circuit Kit for verification of Maximum Power Transfer Theorem 18 AC function Generator 2. ELECTRICAL & ELECTRONICS MEASUREMENT LAB (1620307) 1 Kelvin’s Double bridge test kit 2 Wheatstone bridge test kit 3 D.C. Potentiometer kit with 12v (D.C.) standard cell 4 Temperature transducer kit 5 Transformer oil dielectric strength testing kit upto 30kv 6 Ammeter 0-5A and 0-10A - Voltmeter 0-300v and 0-600v 7 1-ph and 3-ph energymeter testing kit 8 Rheostats of various ranges 9 Digital multimeter 10 Analog multimeter 11 Wattmeter (0-75w), (0-150w) and (-350w) 12 Meggar 13 Earth tester 3. ELECTRICAL WORK SHOP PRACTICE (1620309) Tools and Hardware (a) Hammer set (b) Mallet (c) Handsaw (d) Hacksaw (e) Screw driver set (f) Monkey wrench/pipe wrench (g) Chisel(farmer chisel & cold chisel) (h) Scraper (i) Wire stripper (j) Hand drill (k) Vise (l) Pliers set(with flat nose, side cutting orround nose) (m) Electric drill (n) Power saw (o) Tool box-containing adjustable wrench, screwdriver bits, screwdriver, take measure,hammer,knife, socket, socket wrench, bull nose pliers, needle- nose pliers level, washer, nut, etc. (p) Drill bits-metalbit, reamer, carpentry bits, flat wood bit, and masonry bit. (r) Soldering Iron (different sizes) (s) Wire cutters (t) Electrical tape (u) Vice (v) Circular saw Switches- Tumbler Switch DPIC Switch Main Switch Sub Main Switch 2Way 6A Switch 1Way 6A Switch Single Pole Double Throw Single Pole Single Throw Triple Pole Switch 3 MCB Box 4 Metal conduit pipe with junction box 5 Metal bend 6 PVC casing and lapping 7 PVC bend 8 Batten lamp holder 9 Switch boards with socketoutlets 10 7/20 SWG Power wire 11 3/20 SWG Phase wire 12 3/22 SWG Neutral wire 13 1/18 SWG Earthing wire 14 Flexible cable 15 Distribution Board 16 Sub Distribution Board 17 File (of different size set) 18 Try square 19 Fluorescent tube with tube base, starter & choke 20 D.C. Motor (assembly type) 2 HP 21 Coil winding machine 22 Laminated transformer case 23 Car dynamo for the purpose of armature winding 24 Table fan 25 Ceiling fan 26 3-φ squirrel cage 2HP induction motor for armature winding purpose 27 Small battery charger for assembly purpose 28 Alarm bell for assembly and testing purpose 29 Inducting relays for assembly and testing purpose 30 Coil windings varnish coated wire of suitable guage 31 For the purpose of dismantling repairing, assembly and testing flooring equipments are require - Electric Iron - Room Heater - Electric Toaster - Water heater (small size) - Electric Kettle - Electric Oven - Fan Regulator 32 Megger 33 Earth Resistance Tester 34 CommonTester (125 mm) 35 Computer with printer and LCD projector for demonstration 4. D.C. MACHINE AND TRANSFORMER LAB (1620406) 1 D.C. shunt generator 2 D.C. series generator 4 D.C. shunt motor, 5 D.C. series motor, 6 Three point D.C. motor starter 7 Four point D.C. motor starter 8 D.C. voltmer (0-230v), D.C. ammeter (0-10A) 1-ph transformer, 230/230v, 230/115v, 3kva with tapping at 10%, 25%, 50% and 75% housed in steel box with educational type terminals provided with control panel. (for O.C. and S.C. test) consists of the following accessories. 3-Phase transformer 1-ph transformer 5. A.C. MACHINE LAB (1620507) 3 3-ph Induction motor squirrel cage type, 5 Study model of star-delta starter, 6 Study model of Autotransformer starter for Phase 5 H.P. induction motor with switching arrangement. 9 3-pahse Synchronous capacitor 10 Digital Tacho Meter 11 Stroboscope POWER ELECTRONICS LAB (1620607) Thyistor trainer kit for VI characteristic Full wave bridge rectifier trainer kit using SCR and UJT 1-ph parallel inverter trainer kit using SCR 1-$ series inverter trainer kit using SCR Step up chopper trainer kits with required capacity of (30v/2A and 220v/5A ratings) step down chopper trainer kits with required capacity of (30v/2A and 220v/5A ratings) Circuit breaker trainer kit using SCRs Battery charger experimental kit using SCR Experimental kit for speed control of DC series motor (SCR based) Experimental kit for speed control of induction motor using PWM/CSI inverters 20 MHz Dual trace oscilloscope Function generator Regulated Dual DC power supplies-ELECTRIC TRACTION LAB-2020504C Description- (a) Determination of speed torque characteristics of D.C. series motor (b) Determination of tractive force- speed characteristics of D.C. series motor under different diverter positions Equipment Required- D.C. series motor 3HP, 220V, 1500rpm with prony brake loading arrangement consisting of CI drum pulley suitable for water- cooling dial type spring balances , canvas belt with hooks, threaded studs with wheel for lighting the belt, frame and base with control panel consisting of nicely powder coated M.S. fabricated box with engraved circuit fitted on the bakelite sheet panel with duly marked termination and also back door of the panel to have lock facility for safety of panel and (i) D.P.S.T switches (ii) 3 Point D.C. motor starter (iii) Regulator for motor (iv) Analog meter ammeter (0-1A) MC type (1PC) (v)Analog meter voltmeter (0-300V) MC type (2pcs)(vi) Fuses Description- (a) Study of train- movement mechanism (b) Study of speed time curves for train movement Equipment Required- Study model of train movement mechanism incorporating catenary, pantograph, bow-collector, C.Bs, tap changing transformer, metal rectifier, D.C.series motor, gear arrangement of motor pulley with wheel for mechanical power transfer to wheels, rail (all in model form, small size for lab purpose) Computer with printer and LCD projector for demonstration Exhaust Fan Differential relay Testing System Combined overcurrent and earth - fault relay model Software for Management of Electric Traction System 8. MICROPROCESSOR & MICROCONTROLLER LAB (2020501) 1 Microprocessor Kit (8085 based) 2 Trainer Board of junction diode 3 Logic gate trainer board 4 CRO 30MHz Dual Trace 5 D/T flip-flop 6 Common Emitter Transistor set 7 Analog to digital converter interface card 8 4 Digit seven segment display interface card 9 DAC Kit 10 Temperature measurement& controller card 11 Computer with printer and LCD projector for demonstration 12 Split invertor AC with stabilizer 13 8086 microprocessor Trainer Kit for Study 14 Intel 8051 microcontroller kit with data card 15 A/D Converters Experimental Kit (ADC 0800 Series) 16 LED Display Kit with Card 17 LCD Display Kit with Card 18 Interface Cards for Stepper Motor & DC Motor Control 19 Silent Generator 75 KVA with Complete Fitting for Labs 9. Fundamental of Electrical & Electronics Lab (1620308) 1 V-I Charecteristics of Diode kit 2 V-I Charecteristics of Zener Diode kit 3 half wave rectifier kit 4 full wave rectifier kit 5 full wave rectifier kit 6 capacitor filter kit 7 Inductive filter kit 8 Input & Output characteristics of Transistor (BJT) 9 FET charecteritics kit 10 UJT charecteristics 11 Zener diode regulator kit 12 Transistor series & shunt regulator kit 13 Single stage common emmiter amplifier 14 Two stage RC coupled amplifier 15 Frequency Reesponse of FET Amplifier 16 Frequency Reesponse & Bandwidth of feedback Amplifier 17 Colpitt oscillator kit 18 RC phase shift oscillator kit 19 RC Integrator and Differentiator OPamp Kit 20 Clipper and clamper circuit kit 21 Astable Multivibrator Kit 22 Mono stable multivibrator Kit 23 Bistable multivibrator Kit 24 B-H curve trainer Kit 25 Choke Coil 26 1-phase Power factor meter 27 1-phase variac 28 UJT Relaxation Oscillator Kit
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