CIRCUTOR CVM144 Series - Manual (Page 13)

----- Supply network analyzer CVM-144 ------ User's manual --- Page No. 12
• Connection diagram of the WG transformer (for residual current purposes)
One single WG series transformer
can be use for the measurement of
residual currents within the range to
3 A or to 30 A, jut depending on the
arranged connection diagram.
The current input used for the
residual current measurement must
agree with the input selected in the
pertinent a Setup section (6.5.-)
The appropriate connection mode
to execute the measurement of the
residual current with the CVM-144 is
shown in the below tables:
Measurement of residual current with a maximum value of 3 A (30 mA ... 3 A)
WG Transformer Mod CVM 144 ... -Currents
Terminal No. Description Terminal No. Description
1S1
1S2
2S1
2S2 Measuring winding S1
Measuring winding S2
Not used
Not used
13
15 Residual current measur. S1
Residual current measur. S2
(3 A)
Measurement of residual current with a maximum value of 30 A (300 mA ... 30 A)
WG Transformer Mod CVM 144 ... -Currents
Terminal No. Description Terminal No. Description
1S1
1S2
2S1
2S2 Measuring winding S1
Measuring winding S2
Not used
Not used
13
14 Residual current measur. S1
Residual current measur. S2
(30 A)
2S2
2S1
1S2
1S1