Full Load Temperature Rise of 80°C/176°F or 115°C/239°F. Single or Three Phase. 15-500 kVA.
These
transformers feature a 220°C/428°F insulation system and temperature
rise of only 80°C/176°F or 115°C/239°F under full nameplate load. The
result is 13-21 percent lower operating losses compared to conventional
150°C/302°F rise units. The reduction in temperature rise also increases
reliability due to a
35°C/95°F
thermal reserve on 115°C/239°F rise units and a 70°C/158°F reserve on
80°C/176°F rise units. When these low temperature rise transformers are
operated as 150°C/302°F rise units, they provide a short term overload
capacity of 15-30 percent without compromising normal life expectancy.
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/239°F or 80°C/176°F thermal rise and a class 220°C/428°F
insulation system.
Low Temp Rise Ventilated Transformer Catalog Pages
Features
- UL-3R ventilated outdoor enclosures when used with optional weather shields (order separately)
- UL Class 220°C insulation system, 80°C/176°F or 115°C/239°F temperature rise under full load
- Terminal board connections and spacious wiring compartment
- Panel enclosure design with wiring diagram on inside front cover reduces labor time
- High efficiency for low-cost operation
- Compliant with NEMA TP-1 standards
- Single and three phase models
- Fast delivery
- 10 year warranty
- Accessories and Optional Design Styles
- Wall mounting brackets (item WB1C, 500 lbs. maximum)
- Weather shields (UL-3R, order separately)
- Stainless steel enclosures
- Totally enclosed, non-ventilated designs (TENV, non-UL)
- Open core and coil designs (UL Recognized)
- Copper-wound designs
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