EnerTec - Power Factor Correction

Power Factor Control Relays

Microprocessor- based control relay for intelligent control of capacitor bank.
Simple Commissioning: By automatic identification of threshold current (c/k value), phase angle, connected capacitor stages and switching sequences.

Operator Overview: Through clear display of key momentary values and operating parameter.

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

Monitoring of Harmonic Levels: By continuous monitoring and display of harmonic voltage levels. In the event of harmonic levels exceeding programmable limits, all capacitors will be switched off through over current alarm.

Prolongs Switchgear Life: The RM 9606 / RM 9612 counts, stores and displays the number of switching operations for each individual capacitor stage. An alarm is triggered if the switching counters exceed programmable limits.

Additional Protection for Capacitors: The RMS current monitoring function provides excellent protection for capacitor bank without harmonic filters, especially when resonance cause an increase in harmonic levels.

Intelligent Control for Increased Equipment Life:

• Cyclic switching for capacitor stages of the same rating.
• Accurate switching of capacitor stages prevents unnecessary switching for responsive control.
• Continuous optimization of switching delay according to required reactive current.

Details: Power Factor Control Relays