Experimental Training Equipments-> A.C. Electronics

[1]   Click to Enlarge R-C AND L-C CIRCUITS & THEIR APPLICATIONS The purpose of this experiment is 1. To demonstrate how an AC voltmeter is used to measure AC voltage. 2. To demonstrate the relationship between AC voltage and frequency in a series resistive circuit. 3. To demonstrate the characteristics of a series R-C network. 4. To learn AC circuit measurements and calculations. 5. To show the effect of capacitors, in series and parallel. 6. To investigate the properties of a capacitance voltage divider. 7. To show how to draw an impedance vector diagram for R-C experimental circuit. 8. To verify the operation and characteristics of low and high-pass R-C filters. 9. To demonstrate the characteristics of inductance. NO POWER SUPPLY IS REQUIRED, since it is constructed out of passive components. Dimension: 27cms x 17cms x 10cms. Weight: 500gms See Enlarge Click to Enlarge TRANSFORMER CHARACTERISTICS Objectives of this experiment: 1. To investigate the characteristics of a transformer. 2. How a transformer is really not ideal, RS efficiency is low and AC resistance is high. 3. To show that AC resistance of the windings acts like series- dropping resistance. 4. The operation of a step-up and step-down transformer and relationship with turns-ratio, when the secondary is not loaded and when the secondary is loaded. 5. How using only one half of the tapped winding doubles turns-ratio. 6. To demonstrate how loading the secondary winding increases the current in the primary of the transformer. 7. To demonstrate the principles of an AUTOTRANSFORMER. Built in power supply: (0-6)V AC, (0-12) VAC Input Supply: 230 VAC/50Hz mains operated. Dimension: 27cms x 17cms x 10cms. Weight: 500gms See Enlarge Click to Enlarge SERIES RESONANCE Objectives of this experiment: 1. To investigate the characteristics of the series resonant circuit. 2. To verify that, at resonance, the current is maximum and is determined by the resistance in the circuit. 3. To demonstrate that the voltage across the LC combination is minimum. 4. To prove that the individual voltage across L or C can be higher than the applied voltage. 5. To investigate how changing the values of LC and R affect the characteristics of the circuit. 6. To demonstrate that maximum voltage always occurs across L or C at resonance. 7. To demonstrate that when R is increased the amplitude of voltage across the capacitor is decreased. 8. To demonstrate that the bandwidth increases by increasing resistance. . NO POWER SUPPLY IS REQUIRED since this trainer is constructed out of passive components. Dimension: 27cms x 17cms x 10cms. Weight: 500gms See Enlarge Click to Enlarge PARALLEL RESONANCE Objectives of this experiment: 1. To determine some of the characteristics of the parallel resonant circuit. 2. To examine the characteristics and operation of two parallel resonant circuits, with or without any resistance in series with L and C components. 3. To verify that the computed value of resonant frequency is the same as the experimental value. 4. To demonstrate that any resistance in the parallel resonant circuit increases bandwidth to demonstrate that Reactance of Inductance NO POWER SUPPLY IS REQUIRED since this trainer is constructed out of passive components. Dimension: 27cms x 17cms x 10cms. Weight: 500gms See Enlarge Click to Enlarge B-H CURVE AND HYSTERISIS LOOP Objectives of this experiment: To determine magnetic field (H) H = N1L / R1L V x Amp turn / meter and flux density (B) B = R2 C2 / N2 A R2 C2 Vy Wm-2 The phase difference between B & H causes the Hysterisis loop. Built in power supply (0-6)VAC/300 mA Input Supply: 230 VAC/50Hz mains operated. Dimension: 27cms x 17cms x 10cms. Weight: 500gms See Enlarge Click to Enlarge TRANSIENT RESPONSE OF SECOND ORDER NETWORK Objectives of this experiment: In this trainer the series RLC Circuit is excited by a source. You will be seeing that the response (current) depends on the relative value of R, L and C, You will also be seeing three cases over damped, critically damped, and under damped. The frequency of the current is found to be is given by Dimension: 27cms x 17cms x 10cms. Weight: 500gms See Enlarge Click to Enlarge TRANSFER FUNCTION OF SIMPLE NETWORKS OF PHASE ANGLE MEASUREMENTS. Objectives of this experiment: To study the principles of simulation, which use high gain amplifiers 1. Short circuit transfer impedance method. 2. Five-impedance method. 3. Conventional method. Built in regulated power supply: + 15V/300mA Input Supply: 230 VAC/50Hz mains operated. Dimension: 27cms x 17cms x 10cms. Weight: 500gms See Enlarge Click to Enlarge LEAD AND LAG NETWORKS - FREQUENCY & PHASE COMPENSATION METHODS Objectives of this experiment: To verify a lead Network in this network at low frequencies series capacitor (CS) appears as an open and there is no output. The reactance of capacitor will decrease with increase in input frequencies. So you will get the output at high frequencies. In lagging network at very high frequencies, the parallel capacitor (CP) shunts the output to ground and is very high. So you will get the output at low frequencies. POWER SUPPLY is not required, since it is constructed out of passive component. Input Supply: 230 VAC/50Hz mains operated. Dimension: 27cms x 17cms x 10cms. Weight: 500gms See Enlarge Click to Enlarge LISSAJOUS MEASUREMENTS ON C.R.O. Objectives of this experiment: To determine the phase difference between two signals. Changing either capacitance, or resistance will cause the phase angle to change. By using the lissajous measurements training board you will compare a known frequency with an unknown frequency Built in regulated power supply: +15V/300mA Input Supply: 230 VAC/50Hz mains operated. Dimension: 27cms x 17cms x 10cms. Weight: 500gms See Enlarge [1] Go to Top