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HP Dual Power Analyzer Description
The HP Dual Power Analyzer (Option 020) is available on the following ac source models:
HP 6811B AC Power Source (375VA)
HP 6812B AC Power Source (750VA)
HP 6813B AC Power Source (1750VA)
HP 6813B Option 019 AC Power Source (2000VA)
Option 020 consists of an additional Power Analyzer input on the back of the ac source, an external
current shunt, and a cable to connect the current shunt to the ac source. Option 020 adds the following
capabilities to the above listed ac source models:
•
Voltage and current measurement inputs on the rear panel, with capabilities similar to the output
voltage and current measurements available in standard HP ac sources.
•
The ability to use any shunt for the external current measurement, allowing current measurements
over a very wide range of magnitudes.
•
Precisely synchronized measurements between the rear panel Power Analyzer input and the ac source
output. This is possible because the Power Analyzer input has its own dedicated measurement buffer.
•
New measurement commands that may be used in evaluating uninterruptible power supplies (To
measure transfer time, peak voltage, and phase locked loop performance for example).
•
Frequency modulation of the ac source output.
As shown in the following figure, the HP Dual Power Analyzer also includes an HP-supplied current
shunt, which must be connected to the output of the equipment under test to make accurate voltage and
current measurements. The specifications and supplemental characteristics of the HP Dual Power
Analyzer are documented toward the end of this document.
Option 020 Typical Connections
HP Option 022 Description
Option 022 is simply an HP 6813B Option 019 AC Power Source combined with an HP Dual Power
Analyzer (Option 020). All of the Option 020 information in this document also applies to units that are
configured as Option 022 units.
HP AC SOURCE
(side view)
Shunt
Equipment
Under Test
HP supplied cable
Power
Analyzer Input
(V & I sense)
HP supplied shunt
ac line cables
(customer supplied)
AC Source output
output
ac in
Load
Line
Load
