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R-C AND L-C CIRCUITS &
THEIR APPLICATIONS |
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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
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TRANSFORMER
CHARACTERISTICS |
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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 |
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SERIES RESONANCE |
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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 |
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PARALLEL RESONANCE |
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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 |
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B-H CURVE AND HYSTERISIS LOOP |
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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 |
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TRANSIENT RESPONSE OF SECOND
ORDER NETWORK |
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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 |
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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 |
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LEAD AND LAG NETWORKS -
FREQUENCY & PHASE COMPENSATION METHODS |
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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
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LISSAJOUS MEASUREMENTS ON C.R.O. |
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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 |