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8.4 Example Measurement
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NOTE
8.4.1 Efficiency Measurement of a Switching Power Supply
(1
φ
2W)
Input side (1φ2W)
DC/50/60 Hz
Switching
power supply
P
1
P
2
Output side
(DC)
8.4.2 Efficiency Measurement of a Switching Power Supply
(3
φ
3W)
Input side (3φ3W)
50/60 Hz
P
12
P
3
Output side
(DC)
Switching
power supply
8.4 Example Measurement
The following is an example of measuring the efficiency.
In either the 3P3W or 3V3A connection mode of the 3193, the active power
(
P
) of a 3
φ
3W system is found by the two-power calculation method, and
the efficiency calculation result is also the same.
When channel 1 is the input and channel 2 the output
Input: 1P2W, AC mode / output: 1P2W, DC or AC+DC mode
P
2
η
1 = ─── ×100
P
1
Measuring the efficiency of a single-phase power converter (switching power
supply etc.)
When channel 1, 2 are the input and channel 3 the output
Input: 3P3W, AC mode / output: 1P2W, DC or AC+DC mode
P
3
η
1 = ── ×100
P
12
Measuring the efficiency of a three-phase power converter (switching power
supply etc.)
Summary of Contents for Power HiTester 3193
Page 2: ......
Page 50: ...32 3 9 Operations During Power Failure ...
Page 76: ...58 4 13 Degaussing ...
Page 80: ...62 5 2 Setting the Frequency Range fa ...
Page 108: ...90 9 3 Internal Circuit for the External Control and Timing ...
Page 112: ...94 10 3 Output Rate ...
Page 250: ...232 13 9 Error and Overflow Displays ...
Page 278: ...260 17 5 Internal Block Diagram ...
Page 284: ...266 19 2 Installation Procedures For JIS standard For EIA standard External Dimensions ...
Page 300: ...282 20 4 Internal Block Diagram of the 3193 ...
Page 306: ...INDEX 4 Index ...
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