A lightweight and compact transformer designed considering the impact of harmonic waves!
The "K-rate transformer (for harmonic countermeasures)" is a transformer designed with consideration for abnormal heating caused by the generation of harmonics. It complies with UL-1561 21.1.4 (temperature rise). The design is lightweight and compact, taking into account the effects of harmonics from servers on transformers, as well as the increased load losses in windings due to the skin effect, eddy current losses, and the increase in N-phase current. Additionally, it is widely adopted in domestic Internet Data Centers (iDC) and is designed to prevent abnormal heating even when harmonics are present. [Considerations in the design] ■ Effects of harmonics on transformers ■ Increased load losses in windings due to the skin effect ■ Increased eddy current losses ■ Increase in N-phase current *For more details, please refer to the PDF document or feel free to contact us.
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basic information
【Specifications】 ■ Cooling method: Dry self-cooling ■ Usage conditions: Indoor use, ambient temperature -5 to 40℃ (daily average below 35℃, annual average below 20℃), altitude below 1000m ■ Summary specifications ・JEC-2200(2014) Transformer and ・JEM-1310(200) Dry-type transformer temperature rise limits and ・Winding reference temperature (thermal class H) UL-1561 21.1.4 (temperature rise) ■ Thermal class: Thermal class "H" temperature rise limit 140K (winding temperature rise) ■ Installation location: Indoor standalone installation, cubicle storage ■ Harmonic tolerance: K=13 ■ Neutral point current: 200% compatible ■ Inrush current: Below 2 times ■ % Impedance: Below 6% (when K=13) *For more details, please refer to the PDF document or feel free to contact us.
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Applications/Examples of results
【Usage】 ■ Domestic iDC (Internet Data Center): For UPS, for PDU ■ Power supply for data management and building-related power supply *For more details, please download the PDF or feel free to contact us.
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Company information
〒486-8585 156-2 Ajimi-cho, Kasugai City, Aichi Prefecture Toyo Electric Co., Ltd. TEL: 0568-31-4191 (Main) FAX: 0568-31-8096 *When contacting us by phone, please mention that you saw us on "Ipros" for a smoother experience.