Power Factor Controller Network
with relay outputs and with transistor outputs for fast Thyristor-Switch
Description
The intelligent regulation algorithm of FRANKE Elektrotechnik switches the steps optimized and by this it guarantees short compensation times combined with the smallest amount of operations. The operating cycles are shared equally to all steps.
All relevant parameters for the regulation are set ex works in the way that in nearly all cases for FE-K100 no further adjustments are necessary to start the regulation. An optimization of the control mode of the compensation panel to the local conditions is still possible. Parameters can easily be changed, also during operation.
These settings can be done in two separate user menues. The “Start” menue contains only the settings, which can be necessary for commissioning, like nominal voltage, CT and VT ratio and the automatic correction of current and voltage connection.
These and furthers settings of the “Expert” menue are:
Measuring: nominal voltage, CT ratio, VT ratio, tolerance of voltage, connection Ph-Ph / Ph-N, phase-correction, autom. correction of connection, synchronisation, reset operatinghours, reset average PF, reset max. temperature, temperature offset
Regulation: sensitivity, target-cosphi 1 and 2, switch interval, delay step exchange, step exchange, autom. capacitorsize detection, blocking of defective steps, Regul.progr.: Best-Fit, LIFO, combi, progressiv, Offset reactive power, asym.-switch interval, avoid leading power factor
Steps: discharging time, step size in kVar, steptype (e.g. Fix-steps), reset step database
Alarming: regulation alarm, defective step alarm, power loss of capacitors, THD U Alarm, overtemperature, limit switching operations, limit OPH of panel, limit temp1 / temp2, I=0 alarm (failure in current path), etc.
To start regulation, only the correct setting of nominal voltage is necessary. Differing voltage is blocking control function for protecting the capacitors. If CT ratio is not set, then measurement readings which depend on current are blanked. A wrong connection can be corrected by starting the automatic phase correction. For maintenance work, each individual step can be switched manually.
Display of Information
FE-K100 is equipped with LCD with backlit. It shows information about the panel and about the mains parameters. It’s also necessary for setting the parameters of FE-K100:
Mains paramters:
voltage, current, kW, kVar, kVA, kVar to target, THD U, 3rd to 19th harmonic of voltage, displacement power-factor, power-factor, tan phi, frequency, temperature
Panel informations:
power-on hours of panel, operating cycles per step, max. temperature of panel, average power factor, rating per step in kVar, percentage of the rating per step compared with the nominal rating.
Displacement power-factor and status of the control-outputs are shown permanently.
Measuring
FE-K100 is calculating by the measuring of current and voltage the power conditions in electrical network. Generally, it’s not important, in which phase voltage and current are connected, because the connection is corrected by FE-K100 after starting the automatic phase correction. The min. sensing current is 15mAmp, which ensures a reliable and exact regulation.
There is no manual changing of any settings necessary, to use either 5 Amp or 1 Amp CT. The wide range SMPS allows to realize voltage measuring in a range between 90 V and 550 V.By using the temperature sensor, FE-K100 can measure the internal temperature of the compensation panel and can switch by using one of the control outputs a fan. The switch-off of the capacitor steps due to excess temperature can be triggered by reaching the second excess temperature threshold or can be triggered by N/O contacts of external thermostats, which are connected in parallel to the temperature sensor.
Monitoring
The monitoring features of FE-K100 guarantee a reliable operation and a long life of the compensation
panel:
- Low voltage switch-off against chattering of contactors
- Over voltage switch-off for protecting the capacitors
- Overtemperature switch-off
- Monitoring of THD U and switch-off by exceeding THD U
- Recognition of defective capacitors
- Alarming, when target of regulation cannot be reached
- Signaling of the need for maintenance
- Fan control
Failures and announcements of the panel are shown in LCD. Failures can also be forwarded by the volt free alarm-contact (sign-of-life signal)For switching the fan, one of the control-outputs has to be used.Controller with 6 or 12 or 14 relay outputs
Controller with 6 or 12 or 14 relay outputs
FE-K100R
Controller with 6 or 12 transistor outputs
FE-K100T
Technical Data
| Type of Device: | Reactive power controller |
| Control Variable: | Electrical displacement reactive power |
| Priciple of Regulation: | Gradational regulation with the following modes:
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| Special Features: |
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| Measuring Display: | Measuring Display: V, A, kVA, kW, kVar, cos φ, PF, Δ kvar, THD U, 3rd to 19th harmonic of voltage |
| Information Display: | Switch cycles per step, capacitor rating, status of the exits, operating hours of the panel, max.temperature, average PF |
| Measuring- and Auxiliary Voltage: | 90- 550V AC, single phase, 45-65HZ, 5VA, max. fuse 6A, VT ratio from 1,0 to 350,0 |
| Current Measuring: | 15mA -6A, single phase, burden 20mOhm, CT ratio from 1 to 9600 |
| Control Outputs: | Up to 14 relay, N/O, voltfree with common point, max. fuse 6A, breaking capacity: 250V AC / 5A, 400V AC / 2A |
| Temperature measuring: | By NTC |
| Sign-Of-Life contact: | Relay, voltfree, N/O, max. fuse 4A, breaking capacity: 250V AC / 5A, 400V AC / 2A |
| Fan Control: | By using a control output |
| Interface: | TTL, rear |
| Ambient Temperature: | Operation: -20°C - 70°C, storage: -20°C - 85°C |
| Humidity: | 0% - 98%, without moisture condensation |
| Overvoltage class: | II, pollution degree 3 (DIN VDE 0110, part 1 / IEC60664-1) |
| Standards: |
DIN VDE 0110-1 (IEC 60664-1:1992 +A1:2000 +A2:2002)
VDE 0411-1 (DIN EN 61010-1 / IEC 61010-1:2001) VDE 0843-20-1:2006 (DIN EN 61326-1:2006 / IEC 61326-1: 2005) VDE 0843-20-2-2:2006 (DIN EN 61326-2-2:2006 / IEC 61326-2-2: 2005) |
| Conformity and Listing: | 
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| Terminals: | Plugable terminal blocks, screw type, max. 4qmm |
| Casing: |
Front: instrument casing plastic (UL94-VO),
Rear: metal |
| Protection Class: | Front: IP50, (IP54 by using a gasket between relay and panel) Rear: IP20 |
| Weight: | approx. 0,6kg |
| Dimensions: | 144x144x58 mm hxwxd, cutout 138 (+0,5) x 138 (+0,5) mm |
Operating instructions short
Operating instructions extensively
