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  • Auto Power Factor Controller
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MPM-PF

Introduction

MPM-PF increases usage efficiency by controlling the power factor.
It controls condenser input/cut-off by measuring the power factor or practical effective value of reactive power of Banks on the condenser panel connected to the load by adopting the high efficiency DSP and MCU on a real time basis.
It can measure 28 electrical measurement items while controlling 12 Banks on the condenser. Remote monitoring is also available with 2 alarm output and communication functions

General Specifications

Power Supply 110 ~ 250Vac (45 ~ 65Hz) / 110Vdc
Power Consumption 5VA
Power Input UP to 470Vac (LINE to LINE) input share 0.02VA
Current Input Rated current 5A (Max 10A) input share 0.15VA
Insulation Type Galvanic Isolation & EMI Filter
Temperature Range -20℃ ~ 60℃
Humidity Range 0 ~ 90% (NONE CONDENSING)

Control Function

Bank Set-up Number of BANKS 0~12 (Contact point)
Number of ALARMS 2 (Contact point)
Capacitor Capacity set-up 1 ~ 9,999 KVar (AUTO / MANUAL set-up)
Delay Time 3 ~ 3,000sec
Dead Time 3 ~ 3000sec Time accounting for
electricity charge & discharge
Max Power Factor Set-up 0.95 ~ 1 ~ -0.96 (- Lead)
Min Power Factor Set-up 0.50 ~ 0.95
Reactive Power set-up (Optional) -999 ~ 1 ~ 999kVA Target reactive power set-up
Power factor control method Auto (Optional) Auto Set-up and Control
Manual Sequence Control
Circulation Control
No-Reaction zone When less than 10% of PT/ CT input PEAK power

Measurement Function

Measurement Items Unit Scope of measure Accuracy Remarks
Voltage (3 Phases) V 0 ~ 9,999kV 0.3% F.S
Current (3 Phases) A 0 ~ 9,999kA 0.3% F.S
Frequency Hz 45.0 ~ 65.0 0.3% F.S
Power Factor % -1.00 ~ 1.00 0.5% F.S
Power factor for each phase % -1.00 ~ 1.00 0.5% F.S Communication DATA
Active Power Kw 0 ~ 9,999 MW 0.5% F.S
Active power for each phase kW 0 ~ 9,999 MW 0.5% F.S Communication DATA
Reactive Power kVar 0 ~ 9,999 Mvar 0.5% F.S
Reactive power for each phase Kvar 0 ~ 9,999 Mvar 0.5% F.S Communication DATA
Apparent Power kVA 0 ~ 9,999 Mvar 0.5% F.S
Apparent Power for each power kVA 0 ~ 9,999 Mvar 0.5% F.S Communication DATA
Active Energy kWh 0 ~ 9,999MWh 1% F.S
Active Power PEAK kW 0 ~ 9,999 MW 0.5% F.S
Voltage Phase Angle º For the case of 3 Phase 4 line system

Communication specifications

Communication Port RS-485 1 Port or RS-232C 1 Port (Optional)
Protocol Modbus RTU
Communication Method RS-485 Half Duplex 2Wire
Communication Speed 4800, 9600, 19200, 38400 bps
Available number of connections 32
Cable Length Maximum 1.2km