Datakom DKM-409 PRO AT, Руководство пользователя

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DKM-409 Pro AT User Manual Rev_02 Firmware V-2.5
EFFECT OF PHASE SWAPPING
The network is still loaded with 100 kW on each phase. The load Power Factor (PF) is 1.
PF in phases L2 and L3 will show -0,50 due to phase shift between voltages and currents which is caused
by CT swapping. The result is that total network power displayed by controller is 0 kW.
Measured values are as follows:
kW kVAr kVA pf
Phase L1 100.0 0.0 100 1.00
Phase L2 -50.0 86.6 100 -0.50
Phase L3 -50.0 -86.6 100 -0.50
Total 0.0 0.0 300 0.0
Number of inputs:
4 inputs, all configurable
Input type: Opto-isolated digital input
Function selection: From list
Contact type: Normally open or normally closed (programmable)
Minimum pulse duration: 250ms
Active level:
40-135V-DC or 30-265V-AC
Isolation: 1000VAC, 1 minute
Noise filtering: Yes
3.4. DIGITAL INPUTS