Power Quality & Management

Harmonic Mitigating Transformers are used as one solution for reducing harmonic currents. Treating harmonics has many benefits. These can include:

• Lower maintenance and replacement costs as a result of reducing the amount of heat harmonics can generate.
• Operation of the transformer at a lower temperature due to less heat, eliminating overheating and excessive operating temperatures.
• Lower cooling cost in the area where the transformer is installed as a result of reduced operating temperatures
• Using the full capacity of the transformer. There is no need to de-rate the transformer below the nameplate capacity because of the reduction in heat.

Features, Benefits and Functions

• 480 volts delta primary and 208Y/120 volts secondary standard rating. Additional voltage combinations are also available.
• Electrostatic shield for attenuation of high frequency noise.
• 150°C, 115°C, or 80°C temperature rise.
• Copper windings and terminals as standard. Aluminum is optional.
• Meet or exceed NEMA TP-1 energy efficiency levels.
• 200% rated neutral.
• 220°C, insulation system.
• Performance validated by a nationally recognized independent testing facility.
• Eliminate circulating harmonic currents in primary windings of transformers.
• Low zero sequence impedance and zero sequence reactance.
• Enclosures are NEMA 2 drip-proof. The addition of optional weather shields makes the enclosure NEMA 3R rainproof.
• Harmonic cancellation via electromagnetic flux cancellation. Filters, capacitors or other such devices are not used.
• Variety of phase-shift options available to treat specific harmonics in a system.
• Helps meet IEEE 519 harmonic limits.

Standards and Certifications

• UL listed and labeled.
• ENERGY STAR compliant and labeled.
• Comply with applicable NEMA, ANSI and IEEE standards.