Power factor controller 6, 12 step – multicomp


ใช้สำหรับควบคุมการทำงานของ Capacitor ให้ได้ค่า Power Factor ตามที่ต้องการ The microcontroller-controlled multicomp F144-3 records all network data relevant to the control of small systems via A/D transformer inputs. After calculating the required compensation power to achieve the desired target cos φ, the available capacitor stages are automatically switched on or off with a few switching operations. Programming is menu-assisted and is performed with two buttons. System-specific values are stored in a non-volatile memory. Each stage can be switched individually via the built-in manual-0-automatic function.

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Product detail

  • Detecting and compensating for the missing compensation power in case of recovery into the energy provider network
  • Rapid compensation with few switching operation
  • Display with two-line LC display, stage status an recovery
  • Manual-0-automatic switch separately programmable for each stage
  • Integrated temperature measurement


 multicomp F144-xxx-3 Reactive power controller

 1 multicomp F144-xxx-6RO Reactive power controller with 6 relay outputs for the operation of detuned and undetuned PFC systems
2multicomp F144-xxx-12RO Reactive power controller with 12 relay outputs for the operation of detuned and undetuned PFC systems
3 multicomp F144-xxx-6DO Reactive power controller, 6 optocoupler outputs for dynamic thyristor modules
4 multicomp F144-xxx-12DO Reactive power controller, 12 optocoupler outputs for dynamic thyristor modules
 5 multicomp F144-xxx-6DO6RO Reactive power controller works with hybrid switching, 6 relay- and 6 optocoupler outputs
Switching stages
Relay outputs; 250 VA per output; 250 V AC: 50 / 60 Hz:
[ 1 ] 6
[ 2 ] 12
[ 3 ] 6 Optocoupler outputs
[ 4 ] 12 Optocoupler outputs
[ 5 ] 6 Relay- und 6 Optocoupler outputs
Power per stage [ kvar ] programmable:0 to 999.9 kVar cap. 
Discharge times programmable:0 … 900 sec. 
Manual 0 automatic switch | status display:Standard | Standard 
Learning function for automatic programming by induced current measurement (requirement: transformer fitted into the cable to the compensation unit)via main current transformer 
Rotary field and phase allocation programmableStandard 
Switching performance
Self-optimizing | Circular switching of equal stages:Standard | – 
Special switching functions forMultiple series connection 
Switch-off limit for low load operation:programmable 
Monitoring functions
No-voltage trigger:Standard 
Overcurrent switch-off (only in connection with induced current measurement) 
Overvoltage switch-offfixed 
Excess current switch-off
(only in connection with induced current measurement):
Overvoltage switch-off:fixed 
Temperature measurement and monitoring with fan control and emergency shut-down:Standard 
Harmonics monitoring with alarm message and emergency shut-down | additional displays:Standard | Voltage: KF – U, 3rd – 13th harmonic 
Error messages programmable:Standard 
Target cos φ monitoring; alarm if unreachable:Standard 
Switching operation monitoring with display per stage:Standard 
Controller status display (over / undercompensation):Standard 
Special operating mode
Thyristor fast circuit breaker (optocoupler outputs):[ 3 ], [ 4 ], [ 5 ] 
Single-phase compensation 
Display type:LCD 
Measuring parameters (RMS values | RMS):U PH-N , U PH-PH , cos φ, f network , I main , Stotal, Qtotal,
Ptotal , Q total demand, temp.
Operating time display: 
Measurement accuracy:  Voltage | current | power0,5% | 0,5% | 1% 
Update speed:20ms 
Single phase measurement (4Q):Phase-phase or phase-neutral 
3-phase measurement 
4-quadrant operation*Standard 
Long-term memory:
Password protection
With digit code:Standard 
Voltage path:Low-voltage; direct measurement30 V … 690 V … 790 V AC 50/60 Hz
 Medium voltage1 V … 99.9 kV programmable
Current path:Main current transformer:1 x 0.15 A  … 5 A … 6 A AC
 Induced current transformer:
Frequency range: 40 to 70 Hz
2. Target value cos φ2Automatic switchover in case of energy recoveryto cos φ = 1
Additional relay outputs:Standard 
error message relay/fan relay:error message relay 
Serial interface with KBR eBus protocol: 
Modbus:Modbus RTU 
Power supply
Operating voltage:85 – 265 V AC / DC 
frequency:50  – 60 Hz 
power consumption:max. 15 VA, 9 W 
Switchboard installation:Housing (H x W x D)144 x 144 x 60 mm
 Switchboard cutout (H x W)138 x 138 mm
MIT Maximize Integrated Technology Co.,Ltd.

MIT Maximize Integrated Technology Co.,Ltd. is a global leader in power quality, industrial automation and power control product and service solutions. Products include circuit breakers, switchgear, UPS and DC power systems, power distribution units, motor controls, meters, sensors, relays and inverters. The principal markets for the Electrical Sector are industrial, institutional, government, utility, commercial, residential, information technology, telecommunications and original equipment manufacturer customers.