Harmonic Filter Resistor

Ever increasing usage of solid state devices like VFD drives and Thyristor controlled Electrical Furnaces etc causes distortion of waveforms with higher frequency Harmonics in supply system resulting in poor quality of power to end users. Harmonic filters are designed to bypass unwanted frequencies using combination of Reactor, Capacitors along with Resistor to achieve better quality power. We specialize in manufacturing medium voltage Filter Resistors for various applications starting from 11 kV onwards.

Technical Specification:

• Range : Up to 132 kV
• Degree of protection : IP 23 made suitable for outdoor
• Service : Outdoor
• Enclosure Finishing : Galvanized / Stainless steel / Epoxy powder coat painted
• Mounting type : Each phase Resistor mounted on standoff Insulator&stacked one above the other For 3 Phase configuration/Steel Structure Mounted
• Voltage : Up to 36 kV
• Standard followed : BS587 / IEC 60060
• Standard followed : IEEE - 32
• Max. Power Dissipation : Up to 2MW
• Resistive elements : Stainless steel AISI 304 / Fecral (Al-Cr steel)
• Maximum BIL : 400 kV
• Design : Live tank or Earthed tank design
• Normal creepage of porcelain insulator : 25mm/kV

Why National Switchgears?

National Switchgears was founded with very purpose of manufacturing high quality resistor for various industrial and research applications in India.

We serve the best work

We are the first company to export NGR from India. Almost all leading consultants in India and well known consulting firms in abroad have approved our NGR.

Best quality

Best Price

Best Support