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ELECTRICAL AND ELECTRONICS DEPARTMENT A1. Electrical Science Laboratory SI. No. Name of the Equipment Description 1. Function Generator 10 Waveform: Sine, Triangle, Square, variable duty, cycle pulse & variable slope ramp. Frequency Range : 0.01Hz to 100MHz in 10 decade ranges. Frequency Indication Accuracy: + 5% of the full scale. Max. O/P level : 20V pp in open circuit. 10V pp into 50W 2. Cathode Ray Oscilloscope Dual channel: - 0-100MHz with probes, Sensitivity 2mV/Div- 10V/Div, Rise time < 25nS, Input impedance = 1MW, Display mode channel1, channel2, dual, Sweep time :- 0.1msec – 0.5 sec/div, Accuracy:- + 5%, Trigger mode :- Auto, Normal, TV. 10 36500-00 3. 100 MHz Digital Storage Oscilloscope The Digital Storage Oscilloscope should have following features: *2 channels *Automatic Measurements *FFT measurements *External Trigger Input *Auto set facility *Autoranging facility *Waveform and Setup Memory *TFT Color LCD display 5 49800-00 SIGNAL ACQUISITION: Bandwidth : Single Shot - 100 MHz Repetitive – 100 MHz Sample Rate : 1 GS/s on each Channel Channels :2 Sensitivity : 2mV to 5V/div Vertical Zoom : vertically expand or compress a live or stopped waveform TIME BASE SYSTEM: Time/Division Range : 5nS to 50s/div Record Length : 2.5 K points (each Channel) Qty 7800-00 Horizontal zoom : Horizontally expand or compress a live or stopped waveform TRIGGERING SYSTEM: Trigger Type Width (or Glitch) : Edge, Video, Pulse WAVEFORM PROCESSING: Arithmetic Operators : Add, Subtract, Multiply, FFT Sources : CH1 - CH2, CH2 - CH1, CH1 + CH2, CH1XCH2 I/O interfaces: The Oscilloscope should have minimum 2 USB 2.0 ports and facility to connect with a PC and PictBridge compatible printers through USB Port. Necessary software should also be provided for PC Communication, which should capture waveforms, measurement data and oscilloscope settings on an external PC, while enabling easy documentation and analysis of measurement results using standard applications including Microsoft Excel and Word. 4. D.C. Regulated Power Supply 5. Variable Choke Coil GENERAL: The instrument should meet all EMC and Safety standards, and to be provided with 2 Nos. 10x 100 MHz Probes, Operational Manual, Power Cord and NIST Traceable Calibration Certificate. 3 years minimum Warranty for the instrument should be offered and after Sales service facility should be available. Oscilloscopes will be used by students of this Institute hence all Classroom and Lab Resource CD containing various lab experiments for oscilloscopes and probes should be provided. OUTPUT 32V/2A, ±15V/0.5A, 5V/5A 12 Input Voltage 230V AC, ±10%, 50Hz, 1 Phase Line Regulation CV : 32V/2A: ±0.01% ±2mV ±15V/0.5A: ±0.1% 5V/5A: ±0.1% Line Regulation CC 32V/2A : ±0.1% ±250μA single Phase 10 A / 50Hz continuous variable Inductor ( Inductive Load) 3 3200-00 320-00 6. Single phase AutoTransformer Single Phase / 10 A / Autotransformer ( Variac ) 15 4650-00 Air cooled, wheel mounted and manually operated. Input voltage – 230V, 50Hz, 1ph, 15A, Output Voltage – 0-270V, for laboratory use 7. Decade Inductance Decade inductance box with 4 dials , accuracy to be maintained at the level of 2% 1KHz. A) 0.1 mH to 1.111 H B) 1 mH to 11.11 H C) 10 mH 111.1 H 8. Fixed capacitance Fixed capacitance box made from high quality polished wood, accuracy to be maintained at the level of 2 to 4%. 9. Rheostat Slide wire Rheostats wound with heavily oxidized iron free Ni-Cu wire, vitreous enameled still tubes, mechanically robust moisture proof, high insulation, Gauges of wire used as per recommendation of IS 8622-1977, length 40cm, wound on single/ double tub 10. Fixed inductor (Ferrite core) 1120-00 each 10 10 10 4 425-00 4 665-00 a) 0-25-50 Ohm b) 0-100-200 Ohm 4 665-00 c) 0-10 Ohm 4 465-00 d) 0-200-400 Ohm 4 950-00 e) 0-300 Ohm 4 490-00 f) 0-50 Ohm 4 365-00 100,200,500 µ H 2 12-00 each 20 3200-00 1,2,5,10,20,50,100,200,500 mH 1,2,5 HChoose any of the above 11. Digital Multimeter 3 ¾ Digit DC Voltage : 400mV / 4V / 40V / 400V / 1000V (±0.5%). AC Voltage : 400mV / 4V / 40V / 400V / 750V (±0.5%). DC Current : 400μA / 4000 μA / 40mA / 400mA / 10A (±1.0%). AC Current : 400μA / 4000 μA / 40mA / 400mA / 10A (±1 0%). Resistance : 400Ω / 4kΩ / 40kΩ / 400kΩ / 4MΩ / 40MΩ (±1.0%). Capacitance : 4nF / 40nF / 400nF / 4μF / 40μF / 200μF( ±2.5%). Frequency : 100 / 1000 / 10k / 100k / 1M / 30MHz (±0.5%). Special Functions : Diode Test. Transistor Test. Continuity Buzzer. Low Battery Indication. Data Hold. Auto Power Off. Function Protection. Shock Proof Protection. Relative value measurment. Frequency / Duty Cycle measuring -0.1 - 99.9%. Input Impedance : 10M. Sampling Rate : 3 times/s. AC Frequency Response : 40 - 400 Hz. Operation Way : Auto Range. Max. Display : 3999 12. 1-Ph (Dynometer Type) UPF Wattmeter, class 1, in eng plastic case, voltage 150300-600V, Current 1/2A or 2.5/5A or 5/10A (Any one range) 10 1900-00 3 4650-00 13. Lamp Load Fitted in wooden board with 10 Nos of bulb holder and 10 Nos of 5A switches of 230V 14. Fixed Resistance 1 Watt a) 25Ω b) 200 Ω 15. VERIFICATION OF LAWS & NETWORK THEOREMS IN DC CIRCUITS Experiments: 01. To verify Kirchoff’s current law and voltage law. 02. Verification of the series & parallel laws for resistances. 03. Verification of Superposition Theorem. 04. Study of potential divider. 05. Verification of Maximum Power Transfer Theorem. 06. To verify Thevenin’s Theorem and to find equivalent voltage source circuit. 07. To verify Norton’s Theorem and to find equivalent current source circuit. The board consists of following built-in parts: 01. 0-30V D.C. at 100 mA, continuously variable IC Regulated Power Supply. 02. +9V D.C. at 100 mA, IC Regulated Power Supply. 03. +5V D.C. at 100 mA , IC Regulated Power Supply. 04. D.C. Voltmeter, 65mm rectangular dial with switch selectable ranges of 0.5, 1.5, 25 & 50V. 05. D.C. Ammeter, 65mm rectangular dial with switch selectable ranges of 0.05, 0.5, 5, 50 & 100mA. 35-00 3 3 1 14500-00 Group A2. Measurement Laboratory Sl.No. Name of the Equipment Description Range 1. CALIBRATIO N OF A SINGLEPHASE ENERGY METER BY (I) DIRECT LOADING METHOD(II) COMPARING WITH A SUBSTANDARD METER. The complete Experimental Set-up consists of the followings : 01. Energy meter mechanical single phase : Under test (Local) 02. Energy meter mechanical single phase : Substandard meter (ISI Mark) 03. Moving Iron AC portable voltmeter / : In housed in bakelite case with knife edge pointer & anti parallax mirror scale of ammeter/ wattmeter 140mm length, spring controlled movement, having accuracy class 1.0. 3.1 Voltmeter range 0–300 Volt 3.2 Ammeter range 0–10 Amp. 3.3 Dynamometer type Wattmeter single phase, multirange, current coil 5/10Amp., Potential coil 75/150/300 Volt. 04. Variac : Variable voltage transformer table/floor mounting with enclosure input 230V, output 0–270V at 8 Amp. 05. Variable Load : Uses 18 heating rods of 70E, 750 Watt each, based on cement asbestos sheet of size 15.75 x 23.85 inch, Output are on terminal with connecting series & parallel connections by switches, to obtain different loads 35 to 210 ohms app. 06. Digital Stop Clock 4 29800-00 2. Digital Energy Meter Single phase (240V) & three phase (440V), vertically mounted, accuracy not to deteriorate due to transportation , accuracy + 1%, operating frequency 45 to 55 Hz, basic current 5A, starting current 0.5% of basic current. 4+ 4 1650-00 3. Wattmeter Portable, fitted in teak wood case nicely (Dynamomete polished with leather handle, desk type, 4 1900-00 a) 50/75/30 Qt y r) knife edge pointer, anti parallax mirror, single/ multi range, single element for single phase, accuracy class 1, power factor unity. 0V, 2.5A b) 50/75/30 0V, 5/10A 4 2900-00 c) 150/300/ 600V, 5/10A 2 2900-00 d) 150/ 300/600 V, 10/20A 2 6500-00 e) 2 100V, 1A 1900-00 f) 250 2 V, 1A 1900-00 g) 250V, 2.5A 2 1900-00 h) 2 250V, 5A 1900-00 4. Wattmeter Portable, fitted in teak wood case nicely (Dynamomete polished with leather handle, desk type, r) knife edge pointer, anti parallax mirror, single/ multi range, three phase four wire, accuracy class 1, power factor unity. 250/440 4 V, 2.5/5A 1900-00 5. Wattmeter Desk mounted laboratory use horizontal type 1ph , Electrodynamometer type, 2.5 / 5 A, 75/150/300V,unity power factor. (2) Desk mounted laboratory use horizontal type 1ph, Electrodynamometer type, 35W, 70W, 150W, low power factor. As in Specifica tion 2 3500-00 6. VTVM (Vacuum Tube Voltmeter) 01. D.C. VOLTAGE (DCV) : 0-1500 Volts DC covered in 7 ranges with full scale deflections of 1.5, 5, 15, 50, 150,500 & 1500 Volts. 02. A.C. VOLTAGE (ACV) : 0-1500 Volts AC covered in 7 ranges with full scale deflections of 1.5, 5, 15, 50, 150, 500 & 1500 Volts. 03. RESISTANCE (Ohms) : 0-1000 M Ohms covered in 7 ranges with full scale deflections 0- As in specificati on 3 7650-00 1K, 10K, 100K Ohms, 1M, 10M, 100M & 1000M Ohms. 04. INPUT IMPEDANCE : DCV : 11 Meg (1Meg in probe). 05. ACCURACY : DCV : ± 3% of full scale. ACV : ± 5% of full scale. OHMS : Within ± 3% total scale length. 06. AF-RF RESPONSE : ± 3% : 30 Hz to 500 KHz. : ± 10% : 15 Hz to 5 MHz. 07. SENSITIVITY OF METER USED : 200 mA D.C. 7. AC Bridge with all accessories A) Anderson Bridge The board consists of the following built-in parts : 01. Anderson Bridge circuit with arms values. 02. Potentiometer for varying one arm. 03. Three different value inductances. 04. Potentiometer with calibrated dial. 05. Five capacitors selected by a band switch. 06. Audio Amplifier with its IC regulated Power Supply. 07. One KHz Sine Wave Oscillator with its IC regulated Power Supply. 08. Speaker. 2 16500-00 B) Schering Bridge The board consists of the following built-in parts : 01. Schering Bridge circuit with arms values. 02. ±12 VDC at 100 mA, IC Regulated Power Supply internally connected. 03. 1KHz Sinewave oscillator having output 015 Vpp. 04. Audio amplifier and speaker for null detector. 05. Three unknown value of capacitors selectable by a band switch. 06. Potentiometer for balancing the bridge. 07. Band switch to select one from six different values of resistance. 2 16500-00 C) Carey foster bridge 2 9800-00 D) MAXWELL’S L/C BRIDGE 2 16500-00 7650-00 The board consists of the following built-in parts: 01. ±12V D.C. at 100mA, IC regulated Power Supply internally connected. 02. 1 KHz Sine Wave Oscillator. E) Hay’s Bridge 8. DC Bridge 03. Audio Amplifier and speaker for null detection. 04. Five unknown values of capacitors selectable by a band switch. 05. Three unknown values of inductors selectable by a band switch. 06. Two decade resistances in 100 ohm steps. 07. Potentiometer and adequate no. of other electronic components. The board consists of the following built-in parts : 01. Hay's Bridge circuit with arm values 02. ±12V DC at 100 mA, IC Regulated Power Supply internally connected. 03. 1 KHz Sinewave oscillator Output 0 - 15 Vpp. 04. Audio Amplifier and Speaker for Null detection. 05. Three Unknown Value of Inductor Selectable by a band Switch. 06. Potentiometer 10 turn for Selecting desired Resistance Value. 07. Potentiometer for balancing the bridge. 2 17200-00 Wheatstone Bridge The board consists of the following built in parts: 01. +5V D.C. At 100mA IC regulated power supply internally connected. 02. Galvanometer, 65mm rectangular dial to read 30-0-30. 03. Six decade resistance of different range. 3 4500-00 9. D.C. Regulated Power Supply OUTPUT 32V/2A, ±15V/0.5A, 5V/5A Input Voltage 230V AC, ±10%, 50Hz, 1 Phase Line Regulation CV : 32V/2A: ±0.01% ±2mV ±15V/0.5A: ±0.1% 5V/5A: ±0.1% Line Regulation CC 32V/2A : ±0.1% ±250μA 12 As quoted 10. Power Factor Meter Portable desk type digital power factor meter. 5A , 250V, single phase, 5A, 440V, three phase. As in specificat ion 3 7800-00 11. Loading rheostat Loading Rheostat, single phase, fitted with heavy duty, porcelain based tubular switches suitable for working voltage 250V with protective devices MCB, knife switch etc. 30A in steps of 3 17600-00 each 1A – 1 Nos. , 2A – 1 Nos. , 5A – 1 Nos. 12. Portable Current Transformer Multi-range portable 50Hz, secondary current 5A, accuracy class 1, dry core type, bar primary, 15VA burden. 500/300/1 2 50/100/50/ 30/5A 3980-00 13. Potential Transformer Portable dry core laboratory use potential transformer to work on 50Hz, 440 /220V power supply system. a) 440 /220V, 15VA Burden b) 440 /110V, 15VA Burden 2 2980-00 each a) 0-300V 4 900-00 b) 0-600V 4 900-00 c) 0-150V 4 900 d) 0-100V 4 900 e) 0- 75V 4 900 f) 0-50V 4 900 g) 0-25V 4 900 a) 0-5A 4 900—00 b) 015A 4 1450-00 c) 010A 4 1450-00 d) 0- 4 900 e) 0- 4 900 f) 0500mA 4 900 g) 0300mA 4 900 h) 0200mA 4 900 i) 0100mA 4 900 14. Voltmeter, MI Portable meter housed in strong Bakelite body with carrying handle Accuracy: 1% 15. Ammeter, MI Portable meter housed in strong Bakelite body with carrying handle Accuracy: 1% 2 1A 2A 16. Voltmeter, MC Portable meter housed in strong Bakelite body with carrying handle a) 0-300V 5 750 b) 0-150V 5 750 c) 0-50V 5 750 d) 0-25V 5 750 e) 0-15V 5 750 f) 0-10V 5 750 a) 0- 1A 5 750-00 b) 0- 10A 5 1120-00 c) 0- 3A 5 750 d) 0- 5A 5 750 e) 0-25A 5 750 f) 0300mA 5 750 g) 0500mA 5 750 Standard 20 Accuracy: 1% 17. Ammeter, MC Portable meter housed in strong Bakelite body with carrying handle Accuracy: 1% 18. 19. Digital Multimeter 4 ½ Digit 19999 counts TRMS with capacitance, frequency, diode and audible continuity Rheostat Slide wire rheostats wound with heavily oxidized iron free Ni-Cu wire, vitreous enameled still tubes, mechanically robust moisture proof, high insulation, Gauges of wire used as per recommendation of IS8622-1977, length 40cm, wound on single / double tub. 450-00 a) 10 Ohm,10A Single tube b) 15 Ohm,10A Double tube c) 25 Ohm,5A Single tube d) 12 Ohm, 5A Single tube e) 19 Ohm, 5A Single tube f) 50 Ohm, 2.5 A Single tube 3 3 980-00 1480-00 3 450-00 3 450-00 3 450-00 3 450-00 20. Fixed capacitance Fixed capacitance box made from high quality polished wood, accuracy to be maintained at the level of 2 to 4%. 21. Digital Stop clock (999.9 Sec) 22. Stroboscope Laboratory type stroboscope for measuring rpm. g) 100 Ohm, 2A Single tube h) 150 Ohm, 2A Single tube i) 200 Ohm, 1.5A Single tube j) 300 Ohm, 1.5A Single tube k) 350 Ohm, 1.5A Double tube l) 400 Ohm, 1A Single tube m) 650 Ohm,0.5A Single tube n) 1000 Ohm,0.8A Single tube o)1240 Ohm,0.5A Single tube a)36micro F, 440V 3 3 5 0-9,999 rpm 1 450-00 3 450-00 3 450-00 3 450-00 3 850-00 3 650-00 3 650-00 3 1230-00 3 1230-00 475-00 650-00 6650-00 23. LCR-Q meter, Variables Measured : L, C, R & Q. Measurement Modes : Series or parallel equivalent. Measurement Frequency: User selectable 100Hz or 1KHz. Maximum Voltage across Component (approx.).: 0.285V rms (0.8V p-p) Measuring Update Rate : 2 per second. Maximum Time for Valid Reading after User Connecting Components : 1 second. Display : 4 digit, 7 segment Connection to Component Under Test : 4 terminal integral test jig. Measurement Ranges Inductance : 0.1μH to 9999H. Capacitance : 0.1pF to 9999μF. Resistance : 0.001 ohm to 100M ohm. Quality Factor : 0.1 to 99. Disipation Factor : 0.1 to 99. Basic Accuracy valid for L, C & R Measurement: ±0.25% of reading ±1 digit. Ultimate Resolution Inductance : 0.1μH. Capacitance : 0.1pF. Resistance : 0.001 ohm. Quality Factor : 0.01 Group A3. Electrical Machine Lab 12200-00 As in specificati on 1 SL . No . 1. Name of the Equipement Induction Motor – DC generator set Technical Specification Qty 1. Induction motor : Slip Ring 1 set 66500-00 type Induction motor, 5 HP, 400 volts, 1450 rpm, Rotor Resistance : 3-phase, star connected, 60 / phase, cont. variable 2. DC Generator : 3 KW, 220 volts, DC, 1500 rpm, shunt type Motor and generator are placed on strong frame and coupled with flexible coupling. All the terminals of the motors, generators, etc. brought to the Hylam 1 sheet (80cm X 120 cm, No thickness=20mm) for flexible connection. Starter ,MCB’s, ICDP,s should be fitted on the panel with necessary terminal knobs. Auxiliary items 1. Field regulator : 0- 220V/2A 1No . 2. DOL stator for starting 1No 5HP,400V,1450RPM . 3. Variac : 10A, 3 Ph 4. Rheostat : Screw motion type cont. 1No 5. variable rheostat, . 6. 1K / 2A for field control : Screw motion type cont. variable 1No rheostat, . 7. 30 /20A for armature 1No . control. 8. Load : Resistive Load Box, 1No 220 volts, 20 amps, Step . variable (10A, 5A, 2A, 2A, 1No 1A) . 1No . 2 Synchronous generator – DC motor set . 1. Synchronous generator – 1set 3.75 KW, 4 pole, 0.8 pf salient type 440V, field 76500-00 voltage 220V. 2. Compound type DC motor – 3.75 KW, 1500 rpm with interpoles. Motor and generator are placed on strong frame and coupled with flexible coupling. All the terminals of the motors, 1 generators, etc. brought to the Hylam No sheet (80cm X 120 cm, thickness=20mm) for flexible connection. Starter ,MCB’s, ICDP,s should be fitted on the panel with necessary terminal knobs. 1No Auxiliary items 1. 2. 3. 4. . 1No 3 point DOL stator Field regulator : 0- 220V/2A . 1No Variac : 8A, 3 Ph . Screw motion type cont. variable 1No rheostat, 1K /2A for field . control . 5. Screw motion type cont. variable rheostat, 20 /20A for armature1No . control 6. PF meter 7. Load : Resistive Load Box, 220 volts, 20 amps, Step 1No variable (10A, 5A, 2A, 2A, . 1A) – 1No . 3 Synchronous generator – synchronous motor set. 1set 1. Synchronous generator – 3 KW, 4 pole, 0.8 pf cylindrical type 440V, field 1set voltage 220V. 2. Synchronous motor 3 ph, 4 pole, 3 KW 440V, cylindrical type. Motor and generator are placed on strong frame and coupled with flexible coupling. All the terminals of the motors, 1 83200-00 generators, etc. brought to the Hylam No. sheet (80cm X 120 cm, thickness=20mm) for flexible connection. Starter ,MCB’s, ICDP,s should be fitted on the panel with necessary terminal knobs. 1No Auxiliary items 1. Inductive load box – 0 – 10A/400V 2. Load : Resistive Load Box, 3 ph, 10 amps, Step variable (5A, 2A, 2A, 1A) 4. DC generator – DC motor set . 1No . 1. DC generator – 220V, 3 KW 1set compound type, 1450 rpm with inter poles 2. Compound type DC motor – 1set 3.75 KW, 1450 rpm with inter poles. Motor and generator are placed on strong frame and coupled with flexible coupling. 1No . All the terminals of the motors, generators, etc. brought to the Hylam sheet (80cm X 120 cm, thickness=20mm) for flexible connection. Starter ,MCB’s, ICDP,s should be fitted on the panel with necessary terminal knobs. 49800-00 1No . 1No 1. 3 point DC stator 2. Field regulator : 0- 220V/2A . 1No 3. Screw motion type cont. variable . Auxiliary items rheostat, 1K /2A for field control . 4. Screw motion type cont. variable 1No rheostat, 30 /20A for armature. control 5.Load : Resistive Load Box, 220 volts, 20 amps, Step variable 1No (10A, 5A, 2A, 2A, 1A) . 5. DC generator – DC motor set 1. DC generator – 220V, 3 KW 1Set 49800-00 shunt type, 1450 rpm with 1Set inter poles 2. Series type DC motor – 3.75 . KW, 1450 rpm with inter poles. Motor and generator are placed on strong frame and coupled with flexible coupling. 1 All the terminals of the motors, generators, etc. brought to the Hylam sheet (80cm X 120 cm, thickness=20mm) for flexible connection. Starter ,MCB’s, ICDP,s should be fitted on the panel with necessary terminal knobs. Auxiliary items 1 No. 1. 3 point DC stator 2. Field regulator : 0- 220V/2A 1 3. Screw motion type cont. variableNo. 1 rheostat, 1K /2A for field control . No. 4. Screw motion type cont. variable rheostat, 30 /20A for armature1 control No. 5. Load : Resistive Load Box, 220 volts, 20 amps, Step 1 No. variable (10A, 5A, 2A, 2A, 1A) 1 No. 6. DC compound motor with mechanical load arrangement DC compound motor 230V, 0.5 HP, 1500 RPM WITH MECHANICAL LOAD, Spring balance. 1set 56500-00 1No All the terminals of the motors, etc. brought to the Hylam sheet (80cm X 120. cm, thickness=20mm) for flexible connection. Starter ,MCB’s, ICDP,s should be fitted on the panel with necessary terminal knobs. Auxiliary items 1No 1. 3 point DC stator 2. Screw motion type cont. variable. 1 rheostat, 500 /1A for field control No. . 3. Screw motion type cont. variable rheostat, 100 /4A for armature 1No contr 7. DC Series motor with mechanical load DC series motor 230V, 0.5 HP, 1500 arrangement RPM WITH MECHANICAL LOAD, Spring balance. . 1set 56500-00 1No All the terminals of the motors, etc. brought , to the Hylam sheet (80cm X 120 cm . thickness=20mm) for flexible connection. Starter ,MCB’s, ICDP,s should be fitted on the panel with necessary terminal knobs. 8. DC shunt motor with mechanical load arrangement DC shunt motor 230V, 0.5 HP, 1500 1set 63400-00 RPM WITH MECHANICAL LOAD, Spring balance. All the terminals of the motors, etc. brought to the Hylam sheet (80cm X 120 cm, thickness=20mm) for flexible connection. Starter ,MCB’s, ICDP,s should be fitted on the panel with necessary terminal knobs. 1No 1. 3 point DC stator 2. Screw motion type cont. variable. 1No . rheostat, 500 /1A for field control . 3. Screw motion type cont. variable rheostat, 100 /4A for armature1No contr . 9. Induction motor with mechanical load arrangement 1- Phase Squirrel cage type induction motor, capacitor start , 230V, 0.5 HP, 1450 RPM 1set 76500-00 1No All the terminals of the motors, etc. brought to the Hylam sheet (80cm X 120 cm, . thickness=20mm) for flexible connection. Starter ,MCB’s, ICDP,s should be fitted on the panel with necessary terminal knobs. Variac – 270V/5A 10. 11. Induction motor with mechanical load arrangement Synchronous motor with mechanical load arrangement 1No . 1set 88600-00 3- phase Slip ring type induction motor, 440V, 4.8A, 1450 RPM 1No All the terminals of the motors, etc. brought to the Hylam sheet (80cm X 120 cm, . thickness=20mm) for flexible connection. Starter ,MCB’s, ICDP,s should be fitted on the panel with necessary terminal knobs. Variac – 8A, 3 ph 1No . Synchronous motor 3 ph, 4 pole, 3 KW 440V, salient type. 1set 1No . All the terminals of the motors, etc. brought , to the Hylam sheet (80cm X 120 cm thickness=20mm) for flexible connection. Starter ,MCB’s, ICDP,s should be fitted on the panel with necessary terminal knobs. 79800-00 Variac – 8A, 3 ph 12. Synchronous motor with mechanical load arrangement Synchronous motor cylindrical type 230V, 0.5 HP, 1450 RPM 1 No. 1set 79800-00 1No All the terminals of the motors, etc. brought , to the Hylam sheet (80cm X 120 cm . thickness=20mm) for flexible connection. Starter ,MCB’s, ICDP,s should be fitted on the panel with necessary terminal knobs. Variac – 270V/5A 13. Heat run test of a Single-Phase Transformer Transformer : 1 KVA, Primary : 230 volts, Secondary : 115 volts, single phase, 50 Hz, Normally air cool 1 No. 2 No. 46500-00 All the terminals of the transformer,1No etc. . brought to the Hylam sheet (80cm X 120 cm, thickness=20mm) for flexible connection. Auxiliary items 1. Variac : Single phase, table top type, portable, 0250 volts, 10 amps 2. Thermometers : 0– 2000 C, Hg. thermometer 14. of Single-phase Transformer determining the sharing of loads 1 No. 2 No. Transformer : 1 KVA, Primary : 2No 62300-00 230 volts, Secondary : 115 volts, . single phase, 50 Hz, Normally air cool All the terminals of the transformer, etc. brought to the Hylam sheet (80cm X 120 cm, thickness=20mm) for flexible connection. Auxiliary items 1No . 1. Variac : Single phase, table 1No top type, portable, 0-250 . volts, 10 amps 2. Load : Resistive Load Box, 230 / 115 volts, 10 amps, Step variable (5A, 2A, 2A, 1A) 15. 1 KVA, 50 Hz, normally air cooled,2 Connect Three-Phase transformer in Y-, No. CRGO -Y, Y-Y, - and to determine core, Input : 400 volts, Output : 230 the relationship between line volts voltages & phase voltages. (In each transformer). All the terminals of Primary and Secondary coils are brought out on a panel for different type of primary and secondary connection (i.e. Y-, -Y, Y-Y, -, VV etc.) 84500-00 16. DC Power supply unit. 1 Set 19000-00 Input Side : 230 volts, singlephase, 50 Hz. With DP MCB, Fuse protection, AC voltmeter, Indicator lamps in each phase. Output Side : 0 – 220 volts (continuous variable, 50 Amps., With DP MCB, fuse protection, DC voltmeter, DC Ammeter indicator lamp. AC to DC conversion by Bridge Rectifier with free-Wheel diode. LC filter and snaber protection. Operation : Servo control based Push bottom control for increase/decrease the voltage. Floor mounted, self stand, MS Angle frame & MS Sheet Body with enamel paint. 17. Single phase Transformer 3 KVA / 220 Pri. – 115 V Sec. / 50 hz. / air cooled / copper wound / Single Phase core type transformer with sheet metal enclosure. With 50% and 86.6% tappings on both side 18. Wattmeter (Dynamometer) Portable, fitted in teak wood case nicely polished with leather handle, desk type, knife edge pointer, anti parallax mirror, single/ multi range, single element for single phase, accuracy class 1, power factor unity. 10 No. 4650-00 As quoted 4 No. a) 50/75/300V, 2.5A b) 300V, 5A, LPF, UPF 4No . c) 500V, 10 A 6No . d) 500V , 5A 6 No. e) 0-300-600V/0-5-10A 4 No. 19 Tachometer (Contact type) rpm provided with male, female & surface Rubber center. , 60-50,000 RPM 5 No. 3200—00 20. Tachometer (Non-contact type), Rpm provided with male, female & surface Rubber center., 60-1,00,000 RPM 5 No. 3600-00 21. Rheostats Wire wound / single tube / rheostats made in unbreakable metallic tube with silicon clay coating. 650-00 a) 10 Ohm, 7.5A 3 No. b) 50Ohm, 3.4A 3 No. 650-00 c) 200 Ohm, 1.7A 3 No. 365-00 d) 300 Ohm, 1.4A 3 No. 365-00 e) 400 Ohm, 1.2A 22 Digital Multimeter 4 ½ Digit 19999 counts TRMS with capacitance, frequency, diode and audible continuity 23. Voltmeter, MI, Portable meter housed in strong Bakelite body with carrying handle, Accuracy: 1% 3 No. 365-00 5 No. 450-00 As quoted 6 No. a) 0-300V 24. Ammeter, MI b) 0-600V 6 No. c) 0-150V 6 No. d) 0-100V 4 No. e) 0- 75V 3 No. f) 0-50V 3 No. g) 0-25V 3 No. Portable meter housed in strong Bakelite body with carrying handle 6 No. a) 0-5A b) 0-15A 6No . c) 0-10A 6 No. d) 0-1A 6 No. e) 0-20A 2 No. f) 0-500mA 2 No. g) 0-300mA 6 As quoted No. h) 0-200mA 2 No. i) 0-100mA 2 No. 25. Voltmeter, MC Portable meter housed in strong Bakelite body with carrying handle, Accuracy: 1% As quoted 8 No. a) 0-300V b) 0-150V 2 No. c) 0-50V 2 No. d) 0-25V 2 No. e) 0-15V 2 No. f) 0-10V 2 No. g) 0-300V 8 No. 26. Ammeter, MC Portable meter housed in strong Bakelite body with carrying handle, Accuracy: 1% As quoted a) 0- 1A 4 No. b) 0- 10A 4 No. c) 0- 3A 4 No. d) 0- 5A 6 No. e) 0-25A 6 No. f) 0- 1A 4 No. g) 0- 15A 4 No. 27. Phase sequence indicator Portable phase sequence indicator suitable to work on 50–500V, 25 to 50Hz supply 3 No. GROUP B ELECTRONICS AND COMMUNICATION DEPARTMENT LEC/DEC laboratory No 1. Item Cathode Ray Oscilloscope Description/ Technical Specification Dual Channel:- 2 Channel Oscilloscope with probes, 40 MHz Trigger Bandwidth Sensitivity 2mV/ Div-10V/ Div, Rise time < 25 ns, input impedance=1MW, Display mode: channel1, channel2, dual, Sweep time:- 0.1 msec-0.5msec/ div, Accuracy:- +/- (5) %, Trigger mode:- Auto, Normal, TV Component & continuity Tester, Microcontroller based design, Qty 20 2450000 16x2 Alpha numeric LCD with backlit Alternate triggering Gold Plated BNC Connectors (Economical & Space saving) DC Power Supply in built: +/-12V & +/- 5V Display size: 8x10 cm (approx.) Trace rotation: Adjustable on front panel. Calibrator: Square wave generator 1KHz (approx..), 0.2V +1% for probe compensation. Power consumption: 50VA (approx.) Hold-off: Variable control for stable triggering Slope: Positive or Negative 2. 20 MHz Function Waveform: Sine, Triangle, Square, variable duty, cycle Generator pulse & variable slope ramp. Frequency Range: 0.2Hz-20MHz in 8Decade Range,0.2Hz 150MHz(1s) EXT Frequency Counter. Frequency Indication Accuracy: +5% of the full scale. Max. O/P level: 20V pp in open circuit. 10V pp into 50W Attenuation: 20 dB, 40 dB, 60 dB (20 dB approx. variable in between) Display: 3 1/2 digit LED. 20 4800-00 3. D.C. Power Supply 30 2900-00 DC Outputs Fixed: +15V, +12V, & +5V,1A; Variable: 0 to +30V, 2 A; Coarse & Fine adjustment Portable desk type with input 240V AC supply, appropriate fuse fitted, Digital display for voltage and current, Adjustable current limiter 4. 110-00 Moving coil DC Ammeter 5. Moving coil DC Voltmeter 6. Digital Multimeter 7. Universal IC Tester (Digital and Analog) 8. Digital Experimental Board (Digital Lab Board) a) (0-200) μA b) (0-200) mA 20 20 a) (0-12) V b) (0-25) V 20 20 30 110-00 110-00 Functions AC/DC voltage measurement AC/DC Current(Micro-Milli-10 (or above) ampere) Resistance(few Ω - several MΩ) measurement Capacitance(Nano/Micro Farad) measurement Frequency Continuity test buzzer sounds if R <50Ω Diode test Transistor test Digital display Continuity test etc Test most of the Digital IC’s(including all 74 series and opamps), Microprocessors, Static & dynamic RAM & peripheral IC’S. Automatic testing of IC. No wiring or reference IC. 40 pin ZIF to test IC’s in DIP package. Protection Against wrong insertion. Repeated testing of same IC without re-entering the IC no. Auto find the number of Digital IC’s up to 20 pins or more. Display the probable equivalents of Digital IC’s. LCD Display Audible sound for bad IC. Inbuilt Power supply. On-Board Breadboard, Pulse Generator with TTL/CMOS. Size of Bread-board: (172.5 X 128.5) mm DC on-board power supply: +5V, 1 A;-5V,500mA +3V to + 15V, 500 mA (variable) -3V to -15V,500mA (variable) Pulsar generator on Board: (Frequency range,approx.) 1Hz- 1MHz in 6 steps; variable in between steps 110-00 900-00 2 1860000 20 1230000 (Amplitude,approx) 3V -15V (CMOS), 5V (TTL) Pulsar switches: 2 Nos. (Push to on) Data switches: 16 Nos. (Toggle switches for both TTL & CMOS mode) LED display: 8 Nos. (TTL/CMOS mode) BCD - Seven segment Display: 2 Nos. Logic probe: Logic level indicator for TTL/CMOS (7 segment) Power requirement: 230V ±10%, 50 Hz. 9. Soldering & Desoldering station 1 Complete set 650-00