Supplying Installation, Testing and Commissioning of Equipments for Electrical measurement and Electrical workshop and Electrical Machine Power System Laboratory at TTAADC Polytechnic Institute Khumulwng West Tripura

DC Voltmeter Range : 0-250V Portable Analog ,Bench Use Lab Portable in ABS body,

Kelvin Double Bridge Trainer Kit The instrument should have following features : • Easy illustration of Kelvin's bridge • Digital display (DPM) for null detection • Online product tutorial The instrument should have following Technical Specifications : DC Power Supply : +5V Known Resistance : R1=100KΩ, 20KΩ, 10KΩ R3=1KΩ, 200Ω, 100Ω DPM : 2V Dimensions (mm) : 240 W x 345 D x 110 H Unknown Resistance : 0.3Ω, 0.4Ω, 0.8Ω Mains Supply : 230 V ±10%, 50 Hz

Whetstone Bridge Trainer Kit The instrument should have following features : Sample : Constantan, Nichrome Provided with DC Power Supply Compact design Easy to operate The instrument should have following Technical Specifications: DC Power Supply:5V GalvanometerDeflection:30 - 0 – 30 Resistance:80Ω Unknown Resistance Type: VariableRange:0 - 10kΩ Wire Samples: - Constantan: 1m Nichrome:1m Fuse:500mA Mains Supply: 90 - 275V, 50Hz Dimensions (mm):W 345 x D 240 x H 110

Experimentation with De Sauty's and Schearing Bridge The instrument should have following features: - • A Complete set up with all necessary accessories • Inbuilt 1 kHz sine wave generator with variable amplitude • Null detector with DPM Technical Specification: - Sine Wave Generator Frequency range:1kHz ±10% Amplitude control output: Up to 15Vpp Fuse:500 mA, S/B DPM:200 mV Unknown Capacitor:0.1μF, 0.22μF, 0.47μF Mains Supply:230V AC, ±10%, 50Hz Dimension (mm):W 345 x D 240 x H 110

Experimentation with Maxwell's Bridge The instrument should have following features :  Illustration of both Maxwell's inductance bridge and  Maxwell's inductance-capacitance bridge on a single board  Inbuilt 1 kHz sine wave generator with variable amplitude  Null detector with DPM The instrument should have following Technical Specifications : Mains supply : 230 V ±10%, 50 Hz DC Power supply : +12V, -12V Sine wave generator Fixed Frequency : 1KHz ±5% Amplitude Control Range : Upto 20Vpp Unknown Inductors : 10 mH, 20mH, 30 mH, 56μH, 24μH, 12μH DPM : 200mV Unknown Internal Resistance : 470W, 10 , 20 , 30 Dimensions (mm) : W 240 x D 345 x H 110

Measurement of Three Phase Active & Reactive Power with Single Phase Wattmeter Technical specifications: Analog Meters: • Analog Voltmeter, Range : 300V • Analog Ammeter, Range : 2A • Analog Wattmeter Power Supplies: • Operated on Mains power 415V, 50Hz +10% Components are mounted on the panels are: • Capacitive Load Inbuilt • Inductive Load Inbuilt • Resistive Load (External) Salient Features: • Three Phase Power Light Indicator for Mains. • Front panel built with high class insulated Bakelite sheet with Sticker well printed circuits and symbols. • MCB for Short Circuit protection • Connections are brought out through 4mm Colored Safety Sockets. • Patch Cords 4mm. • The trainer is housed in Metal cabinet. • Size of the trainer set 36 x 24”

Power & Power Factor Measurement by CT & PT in Three Phase Circuit Technical specifications: Power Supplies: • AC Power Supply 0-415V AT 4A • Operated on Mains power 415V, 50Hz +10% Digital Meters: • Digital Voltmeter • Digital Ammeter , Digital Wattmeter (Analog), Digital Power Factor Meter Components are mounted on the panels are: • 3 Phase Capacitive Load (Inbuilt) • 3Phase Resistive Load (External) • 3Phase Inductive Load (External) • Emergency Stop • Current Transformer • Potential Transformer Salient Features: • Front panel built with high class insulated Bakelite sheet with Sticker well printed circuits and symbols. • Three Phase Indication through 25mm Indicators • Patch Cords 4mm (Heavy Duty) 1Meter Length. • High Voltage Test Points are Provided With 4mm Safety Sockets • The trainer is housed in Rack Type Channel Extruded Panel • Panel is modular based easy to place and remove the Module. • Short Circuit protection with the MCB. • Size of the trainer set 30” x 24” Scope of Supply: • Electrical Trainer • 3 Phase Auto Transformer • 3 Phase Resistive Load • 3 Phase Inductive Load • 4mm Patch Cords 1Mtr. Length, Potential Transformer

Extend range of Ammeter & Voltmeter using i) Shunt & multiplier ii) CT & PT Conversion of Galvanometer to Voltmeter & Ammeter Technical Specification:- Power Supplies: • DC Supply IC Regulated 0-10V DC, 150mA. • Operated on Mains power 230V, 50Hz +10% Analog Meters: • Analog Voltmeter 10V DC • Analog Ammeter 50mA DC • Analog Galvanometer 30-0-30, 20uA/Div. Components are mounted on the panels are: • 4 Different Variable Resistor are given on Board. • 6 Different Resistor are given on Board. • On Board Half Deflection Method given to Measure the internal resistance of Galvanometer. • On Board Galvanometer to Voltmeter Conversion Circuit Given. • On Board Galvanometer to Ammeter Conversion Circuit Given. Salient Features: • Front panel built with high class insulated Printed Circuit Board sheet with well printed circuits and symbols. • Connections are brought out through 4mm Colored Safety Sockets. • Patch Cords 4mm. • The trainer is housed in ABS Plastic cabinet. • Size of the trainer set 12” x 10

Single Phase kWh meter with LCD display Range : 5-30A

3 Phase 4 Wire kWh meter LCD Type Range : 5-30A

Hand Driven Insulation Testing (Megger) Product Features: • Rugged design to withstand industrial environment • Metal body with collapsible Steel handle • In-built hand-driven brushless AC generator and static rectifier to supply Stabilized DC voltage • Guard terminal to eliminate surface leakage current • Cross coil movement, sintered anti-friction bearings and delrin-moulded gears ensures trouble free operation • 66mm logarithmic scale confirms to IS 2992-1987 Technical Specification: Test Standard : IS 2992-1987 Accuracy : ±5% in the first effective range ±10% in the first effective range As per clause 9.1 of IS 2992-1987 Terminal Voltage Setting at Rated Resistance : +10% of rated voltage Voltage Stability at rated resistance speed 160 to 240 RPM : -2% to +4% of terminal voltage Ripple Content at 160 RPM : <10% of the rated Vpp High Voltage Flash Test : with stand 2KV AC (rsm) between the electrical circuit & the handle for 1 min Insulation Resistance : >50MΩ at 500V between electrical circuit and he training case Range: I. Insulation Resistance : 0-100MΩ, Test Voltage : 500V II. Insulation Resistance : 0-200MΩ, Test Voltage : 500V III. Insulation Resistance : 0-500MΩ, Test Voltage : 500V IV. Insulation Resistance : 0-100MΩ, Test Voltage : 1000V V. Insulation Resistance : 0-200MΩ, Test Voltage : 1000V VI. Insulation Resistance : 0-500MΩ, Test Voltage : 1000V Standard Accessories: 01. A pair of testing leads 1 Meter length 02. Instruction Booklet 03. Test Certificate

Digital Trip Relay Technical Specification (1) Single phase AC input supply panel will consist of : a) 1 phase/2 pole MCB of 10/15A – 1 Nos, b) Bulb load . (2) Separate Power and control Contact Unit:- a) With separate input output and coil terminals bought out on the

Static VAR Compensator Technical Specifications • Bus bars • Multiple R-L loads • Var Compensators. (basically these are capacitor banks of ‘1Kvar’ each) • Microcontroller based IPFC relay. • Wattmeter Make : Cabs…..Range : 0-3KW………Quantity : 1 • Digital Voltmeter Make : Cabs…..Range : 0-300V………Quantity : 1 • Digital Ammeters Make : Cabs…..Range : 0-10A…………Quantity : 1 • Main ON-OFF switch /MCB/fuse. • LED indicator. • Fuse protection. • Overload protection. Off on switch and power plug. • All equipments /Instruments fitted on a Bakelite panel board with table top self stand. • MS angle Frame with required connecting terminals , patch cords, • Mains cords, instruction /operating Manual etc

panel board (3) Panel will consist of : a) Counter Timer b) Separate auxillary supplies for coil contacts of relay (4) 230/220 VAC, 1KVA, Isolation Transformer Panel will consist of : Transformer Panel Consists of all the connections of transformer primary and secondary will be brought on the top of panel. (5) Digital Trip Relay along with Protection relay type should consists of : , Aux. supply 220VAC Digital Trip Relay. trainer kit with – Relay – 2 no. on Time Delay Relay– 2 no. Aux. DC voltage source for relay : 220V/110V (SMPS type) – 1 no. Digital time counter with hold and reset facility – 1 no. Trip Alarm circuit with buzzer – 1 no. With required power supply, DP MCB, indicator, connecting terminals, sockets, Alarm, tripping circuits, operating manuals etc With required power supply, DP MCB, indicator, connecting terminals Sockets, Air break contact with 3 no, NO for power ckt and 1no NO and 1no NC for control ckt, operating manuals etc.

1 inch casing capping

Variable (Single Tube) rheostat: 0-100 ohm Technical Specification The resistance Materials are wound on Ceramic tube. Current rating: 0-5 A Voltage: 230/240 V Power Rating: 1-2 Kw Frequency- 50 Hz

Variable (Single Tube) rheostat: 0-200 ohm Technical Specifications The resistance Materials are wound on Ceramic tube. Current rating: 0-4 A Voltage: 230/240 V Frequency- 50 Hz

Diode Different type (PN Junction diode, Zener Diode, LED, Laser diode, Schottky diode, Photo diode) (30 Nos. each)

Different types of relay kit (Electromechanical Relay, Solid-State relay, Magnetic Latching, Differential relay and Distance relay) (5 Nos. each)

Led bulb 5W,9W (40 Nos. each)

Led light of different colour Max 3 colour (5 Nos. each colour)

Variable (Single Tube) rheostat: 0-50 ohm Technical Specifications The resistance Materials are wound on Ceramic tube. Current rating: 0-10 A Voltage: 230/240 V Frequency- 50 Hz

Transmission Line Simulator Product Features • 240 x 128 Graphical LCD Display • RISC Microcontroller based design for measurement • Simultaneous display of sending and receiving parameters • Highly sensitive to change in reading for better controlling • High Resolution ADC for accurate measurement • Inbuilt Single Phase Variac to regulate supply • Equipped with fixed R, L & C Load • Facility to configure Short, Medium & Long Transmission Line using multiple value of R, L & C • Designed by considering all the safety standards • Diagrammatic representation for the ease of connections • Learning material CD Technical Specification: - Mains Supply:230V ±10%, 50Hz Single Phase Variac Input:230V Output:0-270V Current:0-2A Display Measurement Voltage: ≥25V Current: ≥0.2A Active Power: ≥20W≤

MCB 6A,10A,12A (5 Nos. each)

Transformer Trainer Features • Control panel with digital microcontroller based measuring devices with high accuracy and resolution • Transformer winding consist of copper or high grade material for long term service, Control Panel with back door for better understanding its internal wiring with ease • Front board and consists of MS Material with power coating to avoid any rust. • Separate auxiliary supply will be required to actuate digital measuring devices • Panel with round grills fitted on both sides for cooling. • Provided with suitable protection such as fuses, MCB, etc wherever requires • Specially designed BS10 Terminals and patch cords to eliminate electrical shock • Lamp indicator for single phase supply • Earthing screw provided at the back side of the c

Resistance Box (Single Dials) Technical Specifications DRBC-115U 10 .1 ohm 1 ohm DRBC-115P 10 1 ohm 10 ohms DRBC-115Q 10 10 ohms 100 ohms DRBC-115R 10 100 ohms 1,000 ohms DRBC-115S 10 1 K ohms 10 K ohms DRBC-115T 10 10 K ohms 100 K ohms

2000W Reactive Power: ≥20VAR ≤2000VAR Apparent Power: ≥20VA ≤2000VA Loads Resistor:700O/ 100W Inductor:800mH/ 0.5A Capacitor:12.5μF/ 450V Dimension (mm):W 830 x D 355 x H 630 (approximate) Weight:52kg (approximate)

ontrol set-up, Diagrammatic representation for the ease of connections., Product should be provided with protection fuses, colored patch cords, single phase/ three phase cords, learning manual having theory operating procedure with connecting diagram, FAQ, Glossary, etc Technical Specifications Mains Supply: Single Phase, 230V AC ±10%, 50Hz Single Phase Transformer (2Nos), Rating: 1000VA Primary Voltage : 0-125V-0-125V Secondary Voltage : 0-125V-0-125V Rated Current : 4A Winding : Copper Efficiency : Above 90% (considering experimental losses),Type : E-I Core, Digital Meters Used, Technology Used : Microcontroller based AC Voltmeter (72 x 72mm) : 500V (2nos.) AC Ammeter (72 x 72mm) : 10A (2nos.) Wattmeter (96 x 96mm) : 1.5kW Protection Devices MCB (DP): 6A , Glass Fuse : 5A Grounding Nut : Available at the rear side of the panel Supporting Accessories supplied with Control Setup • Patch Cords of different color scheme • Single Phase Mains Cord • Extra Glass Fuses • Learning Material Manual resistive Load, 1.2Kw (Included)

Switch Bus-Bar Module Features :- ● Connects other parts of equipments Electrical Systems range to create realistic and meaningful electrical power systems with characteristics typical of industrial plant ● Allows creation of fully functional electrical power systems so students can observe the interaction between elements ● Double busbar with six bi-directional feeders ● Separate radial circuit with one incoming and three outgoing feeders ● Built-in industrial-standard digital protection relays give wide range of functions ● Includes point-on-wave circuit breaker for switching transient investigations ● Fitted with socked for additional protection relay for more experiments ● Introduces unit protection ● Includes circuit protection instruments and controls ● Two separate three –phase fault switches(one with a digital timer)allow students to apply a range of faults and monitor their effects on the whole systemStandard features ● Supplied with comprehensive user guide , Five-year warranty, Manufactured in accordance with the laters European Union directives Technical SPECIFICATIONS Net dimensions and weight 1850 mm x1870 mm x960 mm and 520 kg Packed weight 650 kg Double bus circuit: ● Six bi-directional feeders each with circuit breakers voltage and current meters and protection CTs for connection to the protection relays ● Two circuit – breakers to break each half of the bus ● Twelve bus isolators six on each half of the bus ● Two circuit-breakers that break the coupling between the main and reserve bus Radial circuit: One incoming and three outgoing feeders, each with circuit breakers, voltage and current meters and protection cts for connection to the protection relays. PROTECTION RELAYS: Two identical industrial-standard digital relays for connection to the CTs around the circuits, for standard protection and zone protection.

Circuit Breaker Trainer Features: - • Alphanumeric 16X2 Big Font LCD for better visibility • Isolated Power Supply using Transformer • Inbuilt variable current injection facility • Transparent MCB's to understand internal architecture and its working • Inbuilt Timer, Current & Temperature on LCD • MCBs are mounted with temperature sensor for current temperature analysis • Equipped with supply indication lamp • Designed by considering all the safety standards • Diagrammatic representation for the ease of connections • Learning material Technical Specification: - Mains Supply:0-220V AC ±10%, 50Hz Single Phase Variac Input:230V Output:0-270V Current:10ASingle Phase TransformerRating:1kVA Input:230V Output:230V Experimental Setup MCB’s:B type, 6AC type, 2A HRC Fuse:6A Temperature Sensor (2 Nos.) Type: Mounting type Name: LM35 Display Resolution:0.1°C Mounting: With Brass holder mounted on MCB’s Protective Devices: 10A (SPN) Rheostat:100 / 5A Dimension (mm):W 600 x D 350 x H 450 Weight:22kg (approximate)

Relay Testing Kit Product Features • Inbuilt variable source • Big font LCD display for better visibility • I

Distribution Trainer It should have following features: • Inbuilt DC Variable Supply • Digital Panel Meters • Separate sections for Ring Main and Radial Distribution System • Facility to configure balanced and unbalanced network • Equipped with Supply Indication Lamp • Designed by considering all the safety standards • Equipped with bulb holders to use load • Should provide online product tutorial. It should have following Technical Specifications: • Mains Supply : 230V ±10%V AC, 50Hz • Inbuilt Isolated DC Output Supply Rated Voltage : 0 - 220V ±10% (Variable) Rated Current : 2A • Transformer Rating : 0.5kVA Primary Voltage : 230V Secondary Voltage : 150V • Variac Input : 230V Output : 0-270V Current : 2A • Digital DC Voltmeter (3 Nos.) Range : 20-500V Display Resolution : 1V • Digital DC Ammeter (3 Nos.) Range : 0-5A Display Resolution : 0.01A • MCB : 2A (SPN)

solation transformer is provided for safe operation • Exclusive and rugged designed panel • Designed by considering all the safety precautions • Diagrammatic representation for the ease of connections • Learning material Technical Specifications Mains Supply : 230V±10%V AC, 50Hz Variac Input : 230V, Output : 0-270V, Current : 0-2A Isolation Transformer Rating : 1kVA, Primary Voltage : 0-230V Secondary Volatge : 0-230V Earth Fault Relay Type : Electromechanical Inverse Time Normal Voltage : 110V AC, 50Hz Plug Setting : 0.5A, 0.75A, 1.0A, 1.25A, 1.50A, 1.75A and 2A Rheostat : 110O, 5A Display Measurement Unit Design Technology : AVR RISC Microcontroller Voltmeter : 25 - 300V Measurement Method : Direct ADC inter face Display Resolution : 1V Ammeter : 0.2 - 5A Measurement Method : CT based ADC inter face Display Resolution : 0.01A Timer Range : 10mSec - 30min Operation : Automatic with relay star t operating LCD Specification No. of lines : 2, No. of Characters in each line : 16, MCB : 6A (SPN) Dimensions (mm) : W 830 x D 355 x H 630, Weight : 52kg (approximate)

Power Factor Controller THE PANEL WILL CONSIST OF :- This panel set-up indicates how the power factor falls with increase of R-L loads in the system and also its improvement (either manually or automatic) by means of VAR Compensator. The user gets the provision to set a desired power factor of the system and increase the loads till the p.f. falls below the set value and ones it does so, the Var Compensators provided will automatically get into circuit to increase the p.f. above the set value. If the user wants then this automatic system can be made manual also. The panel structure includes : Bus bars ,Multiple R-L loads • Var Compensators. (basically these are capacitor banks of ‘1Kvar’ each) • Microcontroller based IPFC relay. • Wattmeter: Range : 0-3KW………Quantity : 1 • Digital Voltmeter : Range : 0-300V………Quantity : 1 • Digital Ammeters : Range : 0-10A…………Quantity : 1 Main ON-OFF switch /MCB/fuse. • LED indicator. • Fuse protection. • Overload protection. • Off on switch and power plug. • All equipments /Instruments fitted on a Bakelite panel board with table top self stand. • MS angle Frame with required connecting terminals , patch cords, • Mains cords, instruction /operating Manual etc. Brief Description/Specifications: • Examines the distribution efficiency, voltage drop and voltage regulation. • Shows effect of line losses and efficiency. • Built in industrial standard digital protection relays with wide range of functions. • Includes circuit protection, internal variable(R,L, and C loads) instruments and controls..

Resistance Box (Six Dials) Technical Specifications 60 1 ohm 11,11,110 ohms 60 10 ohms 1,11,11,100 ohms

AC/DC Digital Multimeter(0-750v,0-20A,0-3k)

Insulation testing megger (analo

Earth testing megger(analog)

Bulb 100w

Kit-kat types fuse 5amp

Resistance 1k,2k,3k,5k (50 Nos. each)

Cut-out type fuse 60 amp

Cartage fuse 60/100 amp

HRC fuse 100/200 amp

MCB board 8’’x10”

ICDP main switch 16 A

ICTP main switch 32 A

Resistance Box (Three Dials) Technical Specifications 30 1 ohm 1,110 ohms 30 10 ohms 11,100 ohms 30 100 ohms 1,11,000 ohms 30 1000 ohms 11,10,000 ohms

Fluorescent tube light set

Wire for bread board single core

Energy meter single phase

Energy meter three phase

1 mm multi strand copper wire

Resistance Box (Four Dials) Technical Specifications 40 1 ohm 11,110 ohms 40 10 ohms 1,11,100 ohms 40 100 ohms 11,11,000 ohms

Resistance Box (Five Dials) Technical Specifications 50 1 ohm 1,11,110 ohms 50 10 ohms 11,11,100 ohms 50 100 ohms 1,11,11,000 ohms

1.5 mm multi strand copper wire

2.5 mm multi strand copper wire

Wooden board for electrical wiring arrangement big size (8 feet x 12feet)

Digital tachometer(0-3000 rpm)

DC Ammeter Range 0-1A : Portable Analog ,Bench type DC Ammeter Range 0-1 A, Usage Laboratory, Portable in ABS body

DC Ammeter Range 0-20A : Portable Analog ,Bench type DC Ammeter Range 0-20 A, Usage Laboratory, Portable in ABS body

AC/DC Ammeter Range : 0-30A Portable Analog ,Bench type AC/DC Ammeter Range 0-30 A Usage Laboratory, Portable in ABS body

AC/DC Ammeter Range 0-5A : Portable Analog ,Bench type Ac Ammeter Range 0-5 Usage = Laboratory, Portable in ABS body

AC Ammeter Range : 0-10A Portable Analog ,Bench type Ac Ammeter Range 0-10 A Usage = Laboratory, Portable in ABS body

AC Ammeter Range : 0-20A Portable Analog ,Bench type Ac Ammeter Range 0-20 A Usage = Laboratory, Portable in ABS body

AC Ammeter Range : 0-30A Portable Analog ,Bench type Ac Ammeter Range 0-30 A Usage = Laboratory, Portable in ABS body

AC Voltmeter Range : 0-500V Portable Analog ,Bench type Voltmeter - 0 - 500 v Usage = Laboratory, Portable in ABS body,

AC Voltmeter Range : 0-25V Portable Analog ,Bench type Voltmeter - 0-25 V Usage = Laboratory, Portable in ABS body,

AC/DC Voltmeter Range : 0-300V Portable Analog ,Bench type Usage Lab Portable in ABS body

Supplying, Installation, Testing and Commissioning of Electrical Measurement, Electrical Workshop, Electrical Machine & Power System Laboratory Equipments/Machineries of Electrical Engineering Department at TTAADC Polytechnic Institute, Khumulwng, West Tripura under the NEC Scheme "Improvement of Infrastructure in TTAADC Polytechnic Institute, Khumulwng, West Tripura, District Under Higher Education Department."