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Standby Power & IEC62301
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Standby Power
• Legislative drive to reduce standby power
consumption
• Increased consumer awareness of cost to
pocket and the environment
With the political and market forces of
climate change and rising energy costs their
has been an International Agreement to
reduce the energy consumption of electrical
equipment in the “ standby mode “, this is
known as the IEA “1-watt Plan “
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The agreed measurement standard and
accuracy is IEC 62301
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Who Does This Affect ?
All manufacturers of domestic products
Every country can apply its own limits by
directive or legislation.
In Europe the generally accepted directive is
the “ Energy Star” but Germany also has “Blue
Angel” and Scandinavian countries have
adopted the “Nordic Swan”
The measurement standard for all the world
wide directives is IEC62301
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Measurement Overview
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Check Test Environment
The Voltage source must be verified through the
test to comply with :
Total Harmonic Content (THC) of the supply
voltage must be less than 2%
The THC is up to and including the 13th harmonic
Voltage Crest Factor shall be between 1.34 and
1.49 during the measurement
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Power Measurement Accuracy
Power Measurement Accuracy
The measurement standard requires a Watts
measurement resolution of:
0.01W
Load 10W or less*
0.1W
Load 10-100 W
1W
Load greater than 100W
* Requires an instrument with a minimum
current range of 10mA
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Measurement Requirements
The product should first be allowed to
stabilize for a minimum of 5 minutes
Then run a measurement test for 5 minutes
Recording every second
Vrms, Vcf, Vthd, V Harmonics ( up to 13th )
Arms, Acf,
Wrms
Freq
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Measurement Requirements
Standby power is very small, with short bursts
of power.
The PM1000+ has a 1MHz bandwidth and high
sample rate to capture these distorted
waveforms
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The Measurement System
Key Points
Universal Plug Socket for UUT
External 1 ohm Shunt for low power
10W< resolution
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Direct shunt connections for
measurement of asymmetric
waveforms which include a DC
component (H0)
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Power Stability
Less than 5% deviation from the
maximum value observed
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Measurements are stable and the Watts
reading can be directly reported
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Stable Power ? No
If the power measure varies by more the 5%
then either of the following options may be
chosen
Average Power – calculate the average of all
the power readings over the test period
Accumulated Energy- measure the Whrs
consumed by the load.
To calculate the Average Power, divide the
energy consumed in Whrs, by the
measurement period.
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The Compliance Test Report
Product
Details
Test
Parameters
Measured Data
Laboratory
Details
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Voltech Solution
PM1000+
Universal Break Out Box
IEC62301 Software
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Benefits to the Manufacturer
Complete Solution
Ease of use
Provides full Test Report
Provides full Test Data
PM1000+ provides both accurate and stable
readings due to superior bandwidth and
high sample rates
Provides confidence
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