5-5 To Improve Power Factor of a 1
φ
2W Power System
Calculate KVAR value of a 1
φ
2W power system.
Based upon the calculated value, users can purchase
required capacitor at rated voltage and frequency to improve
power factor.
If value of capacitance is needed, users can obtain the
value by the following equation.
Capacitance (Farad) =
KVAR
fV
*1000
2
2
π
where
f
: f
requency in Hz, V: line voltage
It is recommended that the KVAR value of the capacitor
should be a little less than the value measured.
5-6 Resistance & Continuity Measurement
WARNING
Before taking any in circuit resistance measurement, remove power
form the circuit being tested and discharge all capacitors.
Before taking resistance measurements, make sure the
circuit is not live and discharge any capacitors present in
the circuit.
Set the function switch to
•
range.
Connect the black test lead to the COM terminal and the red
test lead to the
•
terminal.
Connect the test leads to the circuit being measured and
read the displayed value.
When the reading is below 50
•
,
it will be indicated by a
continuous beeping.
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