KMB NOVAR 2600, Operating Manual

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NOVAR 2600 Operating Manual
• … general impedance Z (individual phase impedance components do not match to any
above noted standard C- or L-type outputs)
• … alarm output
• … fan output
• … heater output
Secondly, actual discharge time of any disconnected output can be checked from appropriate output
icon ( output type information removed from the icons for this example again ) :
• … open output, fully discharged
• … open output, not fully discharged
At the not-discharged output icon, the dark filled area represents remanent charge of the output – it
corresponds to the output
actual discharge time and gradually drops down. This scheme is relevant
for capacitor, general and unknown impedance type outputs only, not used for choke type outputs.
If the output error detection alarm is set, outputs with unmatched size ( wrong or damaged ) are
detected and temporary removed from control process. Then the alarm gets active and appropriate
outputs are marked with crossing :
•
… defective output
Finally, fixed outputs, i.e. the outputs permanently switched off or on, are marked with shadowed
icons :
• … fixed output, permanently off
Such outputs are not used for power factor control.
4.2.1.3 Power Factor Gauges
For permanent and easy survey of actual power factor, both individual phase ( L1, L2, L3 )
power factor gauges and three-phase ( ΣL ) power factor gauge are displayed in the central
part of the screen.
If a power factor value is out of the gauge range, the gauge pointer stops at the scale
margin. If the power factor cannot be evaluated at all ( for example at zero load ), the
pointer is suppressed.
Furthermore, the power factor actual value is displayed inside the gauge pointer. The value
format can be either
cos φ , tan φ or φ - you can switch to desired format with the
button as described further below.
The second additional information is actual relative load. Level of apparent power of the phase (S1,
S2, S3) or total three phase apparent power ( 3S ) relative to preset nominal power
P
NOM
is displayed
as shadowed column at background of the gauge.
For example, if the
P
NOM
(three-phase) is set to 100 kVA, equivalent nominal phase apparent power is
33.3 kVA that would represent full L1, L2 and L3 gauge height. As about one third of the column
height only on the L1 example above, the actual load of the phase L1 is about 33.3 / 3, i.e. 10 kVA,
approximately.
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