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

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