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Sola Transformers
Sola/Hevi-Duty offers a broad range of transformers to meet many applications. These dry-type transformers are offered encapsulated, ventilated or non-ventilated, 600 Volt Class, isolation type, single and three phase, through 500 kVA. Indoor and outdoor models are available.
General purpose transformers can be located close to the load. No vaults are required for installation and no long, expensive feeder lines are needed. Common applications include inductive and resistive loads such as motors, lighting and heating.
Hevi-Duty general purpose transformers are manufactured to meet applicable industry standards, are listed in accordance with UL 506 and UL 1561 specifications and are classified as isolation transformers.
Contact an ACS Representative for more information.
Sola General Purpose Transformers
Energy efficient dry-type transformers 600 Volt Class, isolation type, single and three phase, 15 kVA through 500 kVA. Indoor and outdoor models available.
• High efficiency for low cost operation
• Compliant to NEMA TP-1 Standards
• Class 220°C insulation system
• Single and three phase availability
• Fast delivery
• 10 years + 2 warranty
Sola Ventilated Distribution Transformers
The Energy Policy Act of 2005 (H.R. 6) requires Distribution Transformers manufactured after January 1, 2007 to meet
specific energy efficiency requirements. EPAct 2005 defines the term “distribution transformers” as any transformer which:
• Has an input voltage of 34.5 kV or less
• Has an output voltage of 600 V or less
• Is rated for operation at a frequency of 60 Hz
• Has a capacity of 10 kVA to 2500 kVA for liquid-immersed units and 15 kVA to 2500 kVA for dry-type units
Sola Non-ventilated Automation Transformers
Hevi-Duty encapsulated transformers are rated for Hazardous Locations (Class 1, Division 2, Group A-D) as well as harsh industrial environments. Encapsulation and rugged NEMA 3R enclosures protect the transformer from dust, moisture, and provide extra shock and vibration resistance. Hevi-Duty UL listed transformers fully comply with the latest addition of the National Electrical Code for Class 1, Division 2, Group A-D locations when installed in compliance with NEC 501-2(b).
Sola Low Temperature Rise Transformers
Hevi-Duty low temperature rise transformers feature a 220°C insulation system and temperature rise of only 80°C or 115°C under full nameplate load. The result is 13-21% lower operating losses than conventional 150° rise units. Reduction in temperature rise increases reliability.
The 35oC thermal reserve on 115°C rise units and 70°C reserve on 80°C rise units definitely mean lower operating costs.
The extra benefit is being able to operate either of these transformers as a 150°C rise unit and have an overload capability
of 15-30% without compromising normal life expectancy (see Figure 2 below).
Low temperature rise transformers are designed for any critical application requiring extra overload capability, lower than average total losses and/or cooler operating temperatures. All are available with either a 115°C or 80°C thermal rise and a fully coordinated class 220°C insulation system.
Sola K-Factor Transformers
K-Factor transformers are designed to reduce the heating effects of harmonic currents created by loads like those shown in Chart A (below). The K-Factor rating is an index of the transformer's ability to withstand harmonic content while operating
within the temperature limits of its insulating system. Hevi-Duty K-Factor transformers have UL ratings of K-4, K-13 and K-20.
The Hevi-Duty K-Factor design is a specialized transformer that offers these benefits:
• Conductors capable of carrying the harmonic currents of non-linear loads without exceeding the temperature rating of the insulation system.
• A transformer design that takes into account the increase in naturally occurring "stray" losses caused by non-linear loads. These losses cause standard transformers to dramatically overheat and substantially shorten design life.
• A core and coil design that manages the DC flux caused by triplen harmonics*. As these harmonics increase, they cause additional current to circulate in the delta winding. This produces a DC flux in the core which leads to core saturation, voltage instability and overheating.
Contact an ACS Representative for more information.
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