Objective: Make measurements on a transformer with and without load
Transformers are devices based on Faraday’s law of induction which are used for converting voltages. One major use is for the transmission of electrical power over large distances, whereby power losses can be minimised by converting the voltage up to the highest possible levels thus reducing the current to a minimum. This experiment investigates the way the voltage and current depend on the number of windings with and without a load and with the output short-circuited. You will also calculate the power losses and efficiency.
![Experiment: Transformers (230 V, 50/60 Hz), 8000633 [UE3040500-230], Induction](/imagelibrary/UE3040500-230/UE3040500-230_01_Experiment-Transformers-230-V-5060-Hz.jpg)
![Experiment: Transformers (230 V, 50/60 Hz), 8000633 [UE3040500-230], Induction](/thumblibrary/UE3040500-230/UE3040500-230_01_1200_1200_Experiment-Transformers-230-V-5060-Hz.jpg)
![15根安全实验导线套件，75mm, 1002843 [U138021], 电循环](/thumblibrary/U138021/U138021_01_140_140_15根安全实验导线套件-75mm.jpg)
![用于拆除式转换器的线圈, 1000989 [U8497440], 可拆卸变压器D](/thumblibrary/U8497440/U8497440_01_140_140_用于拆除式转换器的线圈.jpg)
![Digital Multimeter P3340, 1002785 [U118091], 手持数字测量仪器](/thumblibrary/U118091/U118091_01_140_140_Digital-Multimeter-P3340.jpg)
![直流电源0 – 20 V, 0 – 5 A
(230 V, 50/60 Hz), 1003312 [U33020-230], 供电器](/thumblibrary/U33020-230/U33020-230_01_140_140_直流电源0-20-V-0-5-A-230-V-5060-Hz.jpg)
![通用夹, 1002830 [U13255], 夹具](/thumblibrary/U13255/U13255_01_140_140_通用夹.jpg)
![圆筒支脚, 1002834 [U13265], 基底](/thumblibrary/U13265/U13265_01_140_140_圆筒支脚.jpg)
![双联式三脚架座, 1002835 [U13270], 基底](/thumblibrary/U13270/U13270_01_140_140_双联式三脚架座.jpg)
![用于拆除式转换器的线圈, 1000988 [U8497430], 可拆卸变压器D](/thumblibrary/U8497430/U8497430_01_140_140_用于拆除式转换器的线圈.jpg)
![带整流器的变压器2/ 4/ 6/ 8/ 10/ 12/ 14 V, 5 A
(230 V, 50/60 Hz), 1003558 [U8521112-230], 供电器](/thumblibrary/U8521112-230/U8521112-230_01_140_140_带整流器的变压器2-4-6-8-10-12-14-V-5-A-230-V-5060-Hz.jpg)
![装管, 1002622 [U10146], 软管、流量管](/thumblibrary/U10146/U10146_01_140_140_装管.jpg)
![成对安全实验导线，75cm, 2,5 mm², 1002849 [U13812], 实验用导线和电缆](/thumblibrary/U13812/U13812_01_140_140_成对安全实验导线-75cm-2-5-mm.jpg)
![成对安全实验导线，75cm, 2,5 mm², 1017718 [U13816], 实验用导线和电缆](/thumblibrary/U13816/U13816_01_140_140_成对安全实验导线-75cm-2-5-mm.jpg)
![不锈钢杆 750mm, 1002935 [U15003], 三脚架杆 支架杆](/thumblibrary/U15003/U15003_01_140_140_不锈钢杆-750mm.jpg)
![高压电源5kV（230 V，50/60 Hz）, 1003310 [U33010-230], 供电器](/thumblibrary/U33010-230/U33010-230_01_140_140_高压电源5kV-230-V-5060-Hz.jpg)
![Linear Resistor, 10 Ohm, 1012904 [U333012], 嵌入式组件系统](/thumblibrary/U333012/U333012_01_140_140_Linear-Resistor-10-Ohm.jpg)
![Capacitor 1 µF, 1012955 [U333063], 嵌入式组件系统](/thumblibrary/U333063/U333063_01_140_140_Capacitor-1-µF.jpg)
![Plate Capacitor D, 1006798 [U8492355], 静电学](/thumblibrary/U8492355/U8492355_01_140_140_Plate-Capacitor-D.jpg)
![Pair of Clamps D, 1000977 [U8497181], 可拆卸变压器D](/thumblibrary/U8497181/U8497181_01_140_140_Pair-of-Clamps-D.jpg)
![一对磁极靴，带有钻孔, 1000978 [U8497200], 可拆卸变压器D](/thumblibrary/U8497200/U8497200_01_140_140_一对磁极靴-带有钻孔.jpg)
![洛伦磁力(230 V, 50/60 Hz), 8000621 [UE3030300-230], Magnetic fields](/thumblibrary/UE3030300-230/UE3030300-230_01_140_140_洛伦磁力-230-V-5060-Hz.jpg)