Omicron CPC 100, Руководство пользователя

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CPC 100 V 3.20
Current Transformer - 1
Use the CTRatio test card to measure a current transformer’s ratio and burden with injection on
the CT’s primary side with up to 800 A from AC OUTPUT .
Select the check box Measure Burden to measure the burden in VA.
Note: This option is only useful as long as the injected current I test is about of the magnitude
of the nominal current I prim.
B
u
rden
CT
DANGER
When injecting current into the CT's
primary winding, make sure that no
secondary windings are open.
Nominal secondary current
Select to stop test automatically when measurement is done. Output range
Actual current
injected into CT’s
primary side
Primary injection
current
Use current clamp
rather than
IAC
input
Nominal primary current
Select to enter
secondary current
instead of
measuring it
See “CTRatio (with
Burden) - The Option
Measure Burden” on page
Current Transformer-2
Measured
secondary
current
Ratio Iprim. / Isec.:
Isec act x (Iprim nom/Iprim act)
and deviation in %
((Kn x Isec - Iprim)/Iprim) x
100 %
Polarity:
OK = phase I sec - phase I prim
= - 45 ° < 0 ° < + 45 °
NOTOK = all other cases
Phase angle

relative to Iprim
B
u
rden
CT
DANGER
When injecting current into the CT's
primary winding, make sure that no
secondary windings are open.
CTRatio (and Burden) CTRatio (with Burden) - The Option Measure Burden
Current Transformer