Thursday, 26 June 2014 16:57
K3-03: DEMOUNTABLE TRANSFORMER - V VS N - PROJECTION METER
Additional Info
- ID Code: K3-03
- Purpose: Demonstrate the effect of changing the number of turns in the secondary of a transformer.
- Description: A "Variac" variable transformer steps down 110VAC into the primary coil of the demountable transformer. Use the variac to put 75VAC at 60 Hz onto the 250-turn primary coil of the transformer. The secondary coil is created by looping a wire around the transformer core and connecting it to the AC voltmeter. The voltage produced is approximately proportional to the number of turns in the secondary coil; the photographs above show the cases of 4 turns (top) and 8 turns (bottom) in the secondary coil. Be sure all wires are connected before adding power, and do not disconnect or reconfigure before cutting power.
- Availability: Available
- References: REFERENCES: (PIRA 5K30.10) See also Demonstration K3-04: DEMOUNTABLE TRANSFORMER - V VERSUS N - OSCILLOSCOPE, which is this same demonstration using an oscilloscope to view the secondary voltage.
- Loc codes: K3, ME2, PS1
Published in
K3 Transformers
Tagged under
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K3-01: INDUCTION IN A TRANSFORMER
Demonstrate that a change in the primary current induces a secondary voltage Read More
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K3-02: DEMOUNTABLE TRANSFORMER - SINGLE SPARKS
Demonstrate induction of large voltages by a large secondary-to-primary turn ratio Read More
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K3-03: DEMOUNTABLE TRANSFORMER - V VS N - PROJECTION METER
Demonstrate the effect of changing the number of turns in the secondary of a transformer Read More
-
K3-04: DEMOUNTABLE TRANSFORMER - V VS N - OSCILLOSCOPE
Demonstrate the role of turns in the secondary of a transformer
Read More
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K3-05: DEMOUNTABLE TRANSFORMER - WELDER
Show that very large currents can be produced in the secondary of a step-down transformer Read More
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K3-06: TRANSFORMER - PRIMARY CURRENT VS LOAD
Counterintuitive demonstration of how the primary current in a transformer increases when the secondary load increases Read More
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