DM145KK - Hammond Power Solutions 145kVA 3-Phase Dry Type Drive Isolation Transformer 480 Delta Primary 480Y Secondary

DM145KK

DM145KK is a 145kVA 3-phase dry type drive isolation transformer designed for industrial and variable speed drive applications. This unit features a 480 Delta primary voltage and a 480Y secondary voltage, making it suitable for a wide range of commercial and industrial power distribution needs. The DM145KK is constructed with a robust NH4 enclosure and is floor mounted for secure installation. It utilizes an aluminum conductor and is built with a 220°C insulation system, providing reliable performance under demanding conditions. The transformer is engineered for efficient operation and durability in environments requiring isolation and voltage transformation for AC/DC variable speed drives.

• Part Number: DM145KK
• Manufacturer: Hammond Power Solutions
• Type: Dry Type Transformer
• Phase: 3
• Volt Amps: 145kVA
• Primary Voltage: 480 Delta
• Secondary Voltage: 480Y
• Mounting Type: Floor Mount
• Enclosure Type: NH4
• Conductor Material: Aluminum
• Insulation System: 220°C
• Application: Drive Isolation, Variable Speed Drive

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Specifications

• Part Number: DM145KK
• Manufacturer : Hammond Power Solutions
• Brand : Hammond Power Solutions
• Category : Transformer
• Phase : 3
• Enclosure Grade : Standard
• Duty : General Duty
• Frequency : 60Hz
• Primary Voltage : 480D
• Primary Connection : Delta
• Primary FCAN (NPL) : 1x5%
• Primary FCBN (NPL) : 1x5%
• Secondary Voltage : 480Y/277
• Secondary Connection : Wye-N
• Material : Aluminum
• Temperature Rise : 150°C
• Insulation Class : 220°C
• EKVA : 145
• Efficiency Regulation : No Efficiency Specification; approved for installation in US and LATAM
• Seismic Compliance : IBC 2018 (Sds=2.0, z/h=0, lp=1.5)
• Sound Level : 50 dBA (NEMA ST-20)
• Impedance (Std) : 3% - 6%
• Secondary Termination (NPL) : Mechanical Lugs
• Enclosure Type : Type 3R / IP24
• Enclosure Finish : ANSI 61 Grey, UL50
• Enclosure PN (NPL) : NH4-N3R
• Enclosure Dimensions : 41in/1042mm(H), 32in/813mm(W), 25.5in/648mm(D)
• Nameplate : Standard
• Standard kVA : 145
• Vector Configuration : Dyn1 (-30°)
• Seismic Standard Value : IBC 2018
• OSHPD : No
• Seismic IP : lp=1.5
• Seismic ZH : z/h=0
• Seismic SDS Value : Sds=2.0
• Enclosure IR Window : No

Product Data

• UPC : 803423052607
• Weight : 815
• Certification : CSA, UL

Documentation and Resources

• Engineering Drawing (PDF)
• Brochure
• Hammond Product Application Videos
• Frequently Asked Questions
• Troubleshooting Guide
• Enclosure CAD Drawing (PDF)