Seiteninhalt
MPFC-UB
multiuse power factor controller and unbalance monitor
The MPFC-UB from BELUK is an measuring and conrtrol device for monitoring and protection of capacitor stages.
Unbalance monitoring for double star or H-bridge connected capacitors
with natural unbalance compensation.
Protection by alarm signalling and triggering after limit values are exceeded
TRMS true effective value measurement
Sampling rate of 6.4kHz (128 samples/period)
40 alarm messages can be selected from 65 measured values,
including compliance with voltage harmonics in accordance with EN50160
Features
Hardware:
Front panel mounting device 144 x 144 mm
Connection screw terminals max. 2.5 mm²
Optional software tool for configuration via Modbus RTU
3 voltage measurement inputs (L1-L2-L3-N)
4 current measurement inputs (via external x/1A and x/5A current transformers for energy monitoring)
2 digital inputs
1 potential-free changeover contacts
1 potential-free normally open contacts
6/12 digital outputs (AC)
Data memory up to 8 GB µSD
RS485 interface (Modbus RTU, slave, up to 115200 baud)
Temperature sensor NTC22K
Measurement:
True RMS measurement
Determination of cos phi relative to the fundamental wave
Harmonics up to the 63rd harmonic
Overvoltage category: AC: IEC/EN/UL/CSA 61010-1 (VDE 0411-1)
CAT III: ˂ 300 V LN / ˂519 V LL
CAT II: 300-317 V LN / 519-550 V LL
Overvoltage category: DC: IEC/EN/UL/CSA 61010-1 (VDE 0411-1)
CAT III: 40-240 V
Sampling rate: 6.4 kHz (128 samples / period)
Measurement category: IEC/EN/UL/CSA 61010-2-030 (VDE 0411-2-030)
CAT IV: <= 300 V CAT III: > 300 V to 600 V