Universal Cables Limited


Harmonic Filters


High Voltage Harmonic Filters Bank

Above picture shown is the 66 KV class Harmonic Filters bank for harmonic suppression in the system. These filter banks are designed to absorb specific harmonics (3rd , 5th, 7th, 11th, 13th. …Higher orders) from the system and thereby reducing the THD of the system apart from improving the power factor. Such banks are available from 3.3 KV to 132KV systems. We have supplied a lot many HV filter banks to steel plants / cement industries / chemical & Fertilizer industries in India and abroad.




LV Harmonic Filter Reactor

Tuned and Detuned three-phase filter reactors for non linear (Harmonics Generating) Loads to be used along with capacitors.



  • CPRI Type tested as per IS-5553)
  • High resistance to harmonics
  • Very low losses
  • High linearity to avoid choke tilt
  • Low noise
  • Simple mounting
  • Long useful life
  • Temperature protection (Thermal Operated Switch


Product Range

Harmonic Filters bank for harmonic suppression banks are available from 3.3 KV to 132KV systems.


Technical Information

Filters banks are designed after detailed harmonic study of the system and based on the specific requirement of the customers. We are also conducting harmonic studies / system studies for designing of the HV harmonic filters.

Technical Data of UNISTAR Reactors (LV- Filter reactors)
Frequency 50 Hz
Voltage 415 V 600Volts (Other voltages upon request)
Output 5 to 250 kvar (other ratings upon request)
Detuning 5.4%, 6%, 7% & 14%
Cooling Air Natural (AN)
Ambient temperature 40°C
Class of protection I
Enclosure IP-00
Thermal stress Ith = 1.05 X Irms
Linearity I lin = 1.2 ( I1+ I3 + I5 + I7)
Temperature protection Micro switch