11 — Electrical & Electronics
PMMC Instrument Trainer
Sectioned permanent-magnet moving-coil instrument with exposed movement, control spring and damping system for studying construction, torque equation, shunts and multipliers. Includes a calibration exercise against a standard meter.
01 — Same Laboratory
More in Electrical & Electronic Measurements
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059
Single Phase Power Factor Meter
An analog instrument that indicates the power factor of a single-phase AC circuit, used to demonstrate the effect of load type on lagging and leading power factor.
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060
Kelvin Double Bridge
A bridge circuit used to accurately measure very low resistance values, such as those of shunts, cables, and armature windings, by eliminating contact and lead resistance errors.
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061
MI Type Analog Ammeter (Range Set: 0-1A to 10-20A)
A set of moving-iron type analog ammeters spanning the 0-1 A, 2.5-5 A, 5-10 A, and 10-20 A ranges, used to measure AC and DC current in electrical machines and circuits experiments.
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062
MI Type Analog Voltmeter (Range Set: 75-300V to 300-600V)
A set of moving-iron type analog voltmeters spanning the 75-150-300 V, 125-250-500 V, and 300-600 V ranges, used to measure AC and DC voltage in electrical machines and circuits experiments.
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063
Three Phase Power Factor Meter
An analog instrument that indicates the power factor of a three-phase AC circuit, used in power-systems and machines laboratories to study load power factor.
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064
Wattmeter (Range Set, LPF & UPF)
A set of low and unity power-factor wattmeters spanning current ranges of 0.5-1 A to 10-20 A and voltage ranges of 150-600 V, used to measure real power in AC circuits with varying load power factors.
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066
Moving Iron Instrument Trainer
Cut-away moving-iron instrument — attraction and repulsion types — for studying construction, scale characteristics and the AC/DC response of the movement. Used alongside the PMMC trainer to compare instrument families.
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067
Electrodynamometer Instrument Trainer
Electrodynamometer movement mounted for study of its current, pressure and moving coils and its use as a wattmeter or transfer instrument. Demonstrates why the movement reads true power on both AC and DC.
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068
Energy Meter Testing Kit
Test set-up with standard meter, phantom loading and timing arrangement for calibrating single-phase energy meters and determining percentage error and creep. Covers the meter-testing experiment of the measurements syllabus.
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069
Wattmeter Testing Kit
Bench arrangement for calibrating dynamometer and digital wattmeters against a standard at varying power factor. Demonstrates pressure-coil connection, compensation and error determination.
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070
Maxwell Bridge
Maxwell inductance-capacitance bridge for measuring the inductance and quality factor of medium-Q coils. Supplied with detector, standard arms and null-balance indication for the AC bridge practical.
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071
Schering Bridge
Schering bridge for measuring capacitance, dissipation factor and the loss angle of insulating materials and cables. Used in high-voltage and dielectric-testing practicals.
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