The TIEPCO LV VFDs conform to the latest IEC 60439-1 standard and is designed and manufactured utilizing the in house expertise and state of the art technology, fully taking into account the present and future power system requirement of client.

TIEPCO VFDs have the following salient features:

  • Is up to 690VAC
  • Main busbar rating up to 4000A with density of 1.5Amp/mm2 or as per customer needs.
  • Up to 100KA, indoor or outdoor installation,
  • Up to Form 3 for customer safety requirement.
  • High reliability as designed to the excessive temperature of the region
  • Easy handling as control switches and monitoring equipment are installed at a height appropriate for user
  • Flexibility of design, as cable entry can be from top or bottom.

Technical Specifications:

Standard IEC-60439-1
Rated insulation voltage 1000VAC
Rated voltage 690VAC
Altitude Up to 1000m ASL
Installation Indoor Outdoor
Environment Ambient temperature (Outdoor) : -5ºC to 55 ºC Monthly average : 40 ºC Yearly average : 30 ºC Ambient (indoor) : 40 ºC
System 3Ø,4W+G(Neutral bus=half capacity of phase bus, Ground bus=max .50x10)
Rated Phase Busbar current 400A up to 4000A (Density of 1.5Amp/mm2) bare
Form 1 … 3
Cable entry Top/Bottom
Auxiliary Control circuits 220VAC, internal(control transformer/direct to busbar)
Equipment mounting Fixed / by truck(chassis)
Protection degree IP 3X IP54(on request)
Connection Access Rear / Front/Top/Bottom
Painting RAL 7032/ RAL 7033/ RAL 7038
Future Extension Yes (if require)
Power connections Direct on apparatus
Busbar identification RYB phase marking
Labeling Phenolic (with white background, black engraved letter) riveted