Measurement Methods
2CMC48001M0201
89
A43/A44
Revision: C
User Manual
12 = 30
I1
U1
U2
U3
I2
I3
U1-U2
U3-U2
32 = -30
2-element metering in a 4-wire system
2-element metering can also be used in a 4-wire system if the current in the neutral
connection is zero. Applying this method in a system having a non-zero neutral
current will decrease the accuracy, but can sometimes be justified if the current is
small compared to the line currents or if high accuracy is not required.
It is also possible to use this method for measuring one current only. This method
will only give correct result in a balanced system. Note that the current flows
backwards through phase 1 and 3 and that the phase voltages not are connected to
the normal inputs when the current transformer is connected to phase 1 and 3.
Summary of Contents for A43
Page 1: ...A43 A44 User Manual ...
Page 40: ...Meter Settings A43 A44 40 2CMC48001M0201 User Manual Revision C ...
Page 55: ...Technical Description 2CMC48001M0201 55 A43 A44 Revision C User Manual ...
Page 58: ...Technical Description A43 A44 58 2CMC48001M0201 User Manual Revision C ...
Page 61: ...Technical Description 2CMC48001M0201 61 A43 A44 Revision C User Manual ...
Page 75: ...Technical Description 2CMC48001M0201 75 A43 A44 Revision C User Manual ...
Page 84: ...Measurement Methods A43 A44 84 2CMC48001M0201 User Manual Revision C ...
Page 91: ...Measurement Methods 2CMC48001M0201 91 A43 A44 Revision C User Manual ...
Page 95: ...Measurement Methods 2CMC48001M0201 95 A43 A44 Revision C User Manual ...
Page 102: ...Communication with Modbus A43 A44 102 2CMC48001M0201 User Manual Revision C ...
Page 107: ...Communication with Modbus 2CMC48001M0201 107 A43 A44 Revision C User Manual ...
Page 131: ...Communication with Modbus 2CMC48001M0201 131 A43 A44 Revision C User Manual ...
Page 147: ...Communication with Modbus 2CMC48001M0201 147 A43 A44 Revision C User Manual ...
Page 154: ...Communication with Modbus A43 A44 154 2CMC48001M0201 User Manual Revision C ...
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Page 166: ...Communication with Modbus A43 A44 166 2CMC48001M0201 User Manual Revision C ...
Page 180: ...Communication with M Bus A43 A44 180 2CMC48001M0201 User Manual Revision C ...
Page 182: ...Communication with M Bus A43 A44 182 2CMC48001M0201 User Manual Revision C ...
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Page 195: ...Communication with M Bus 2CMC48001M0201 195 A43 A44 Revision C User Manual ...
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