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Frako Relays

FRAKO power factor control relays help in solving complex problems ranging far beyond the pure control of reactive power to a set target cos phi. Their innovative control characteristics meet all the requirements of modern industrial networks and make these control relays suitable for all applications. Their high accuracy and sensitivity even in networks heavily polluted with harmonics make them suitable for power generation installations and installations which provide continuous or sporadic feed-in to the supply network.

All components of a power factor correction system are operated carefully by these control relays and protected from overloads. This results in a markedly increased life expectancy for the system.

Features:

  • Fully automatic and simple commissioning
  • Patented control characteristic – no overcompensation during low load
  • Measurement and monitoring of harmonics
  • Overcurrent trip function  – Protection for capacitors
  • No-voltage and zero-current release
  • Four-quadrant regulation
  • Automatic adjustable switching delay
  • Versatile indication and messages in the display

Types

We have four different types of Power Factor relays, click on the tabs below to find more about the features of them .

RM2106  or RM2112 – User Friendly 6 by12 step PF Controller

The reactive power control relay RM 2112 and RM 2106 controls the programmed target power factor by activating or deactivating capacitors with 6 / 12 control contacts respectively.

Application

  • Reactive Power Compensation
  • Measuring input is suitable for 240V AC

Display Parameters

Power Factor (cos Ø)frako_relay2112

Total voltage distortion factor (% THVD)

Number of active capacitor steps

Alarm Signals For

  • Overcurrent Fault in voltage circuit (U=0 alarm).
  • Fault in capacitor stages.

Features

  • Potential-free alarm contact.
  • Programmable overcurrent alarm threshold limit (from1.05 to 1.95 x Irms).
  • Continuous monitoring for defective capacitor stages through self adjustment of control program
  • Zero voltage and zero current tripping with alarm signal.
  • Two control curves characteristics. – to avoid overcompensation under light load. -To avoid inductive reactive power under regeneration conditions.
  • Four-quadrant power control with LED display when active power is generated into mains.
  • Manual / automatic operation with ability to switch each individual capacitor stage ON / OFF.
  • Target power factor setting adjustable from 0.85 inductive to 1.00 capacitive in steps of 0.01.
  • Independent setting of capacitor switching time to match discharge time of capacitor stages.
  • Suitable for current transformers with rated secondary current of 1A or 5A.

RM9606 – High Speed and High Accuracy 6 step PF Controller 

The reactive power control relay RM 9606 is a microprocessor-based control relay for intelligent control of capacitor banks with 6 control contacts.

Application

  • Reactive Power Compensation
  • Measuring input is suitable for 400V AC

Display Parameters

  • Power Factor (cos Ø)
  • Apparent (RMS), active and reactive currents
  • 5th, 7th, 11th and 13th harmonic voltage content
  • Total capacitive power required to meet target  power factor setting.

Alarm Signals For

  •  Under compensationfrako_relay9609
  •  High harmonic levels
  •  Overcurrent
  •  Switching counters
  •  Fault in voltage circuit (U=0 alarm)
  •  Fault in current circuit (I=0 alarm)
  •  Fault in capacitor stages (C=0 alarm)

Features

  •     Potential-free alarm contact.
  •     Programmable overcurrent alarm threshold limit (from1.05 to 1.95 x Irms).
  •     Continuous monitoring for defective capacitor stages through self adjustment of control program
  •     Zero voltage and zero current tripping with alarm signal.
  •     “Kinked” control curve characteristics to avoid overcompensation under light load.
  •     Four-quadrant power control with LED display when active power is generated into mains.
  •     Manual / automatic operation with ability to switch each individual capacitor stage ON / OFF.
  •     Target power factor setting adjustable from 0.80 inductive to 0.95 capacitive in steps of 0.01.
  •     Preset up to three fixed capacitor stages which will be excluded from normal automatic operation.
  •     Independent setting of capacitor switching time to match discharge time of capacitor stages.
  •    Suitable for current transformers with rated secondary current of 1A or 5A.


EMR1100S – High Speed and High Accuracy 12 step PF Controller
EMR1100 – High Speed and High Accuracy 12 step Dual PF Controller


The reactive power control relay EMR1100S / EMR1100 is a microprocessor-based control relay for intelligent control of capacitor banks with 12 control contacts.

Application

  • Grid / Generator Reactive Power Compensation
  • Measuring input is suitable for 100-690V ACfrako_relay_emr
  • Communication with Building control systems

Display Parameters

  • Power Factor (cos Ø)
  • Apparent (RMS), active and reactive currents
  • 5th, 7th, 11th and 13th harmonic voltage content
  • Total capacitive power required to meet target power factor setting.

Alarm Signals For

  • Under compensation
  • High harmonic levels
  • Overcurrent

Switching counters

  • Fault in voltage circuit (U=0 alarm).
  • Fault in current circuit (I=0 alarm).
  • Fault in capacitor stages (C=0 alarm).

Features

  • Potential-free alarm contact.
  • Programmable overcurrent alarm threshold limit (from1.05 to 1.95 x Irms).
  • Continuous monitoring for defective capacitor stages through self adjustment of control program
  • Zero voltage and zero current tripping with alarm signal.
  • “Kinked” control curve characteristics to avoid overcompensation under light load.
  • Four-quadrant power control with LED display when active power is generated into mains.
  • Manual / automatic operation with ability to switch each individual capacitor stage ON / OFF.
  • Target power factor setting adjustable from 0.80 inductive to 0.95 capacitive in steps of 0.01.
  • Preset up to three fixed capacitor stages which will be excluded from normal automatic operation.
  • Independent setting of capacitor switching time to match discharge time of capacitor stages.
  • Suitable for current transformers with rated secondary current of 1A or 5