Datakom DK-70, Руководство пользователя

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Connecting CTs:
Be sure to connect each CT to the relevant phase input with the correct polarity. Mixing CTs between
phases will cause faulty power and pf readings.
Many combinations of incorrect CT connections are possible, so check both the order of the CTs and
their polarities. Reactive power measurement is affected by incorrect CT connections in a similar way as
active power measurement.
CORRECT CT CONNECTIONS
Let’s suppose that the compressor is loaded with 100 kW on each phase. The load power factor (PF) is 1.
Measured values are as follows:
kW kVAr kVA pf
Phase L1 100.0 0.0 100 1.00
Phase L2 100.0 0.0 100 1.00
Phase L3 100.0 0.0 100 1.00
Total 300.0 0.0 300 1.00