Hammond Power DM275BKC - Drive isolation transformer, three-phase, 275 kVA, 208–480 Volts, copper windings.
Hammond Power

DM275BKC

UPC: 803423052751

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Overview

Hammond Power DM275BKC is a three-phase drive isolation transformer rated at 275 kVA, designed to meet the electrical demands of variable speed AC and DC drives. The transformer operates within a voltage range of 208 to 480 volts, ensuring compatibility with a wide array of industrial power systems. Constructed with copper windings, it delivers superior thermal efficiency and long-term reliability, reducing energy losses and operational costs. Ideal for applications requiring precise voltage regulation and electrical isolation, the DM275BKC protects sensitive drive components from power surges, harmonics, and electrical noise. Its robust design supports continuous operation in harsh industrial environments, including manufacturing plants, data centers, and renewable energy systems. The transformer’s compact footprint and high efficiency make it a cost-effective solution for both new installations and system upgrades. Key specifications include a 275 kVA rating, three-phase configuration, and voltage flexibility from 208 to 480 volts. The copper windings ensure minimal heat generation and maximum durability, while the isolation design enhances system stability and reduces downtime. Compliance with industry standards ensures reliable performance in critical applications.
  • The separate primary and secondary windings provide electrical isolation between the incoming line and the SCR load.
  • The windings are designed to withstand overcurrent of 150% of the rated load for 60 seconds or 200% of the rated load for 30 seconds.
  • Drive Isolation Transformers are sized to match standard motor horsepower and voltage ratings. Standard sizes range from 5 to 600 HP in six standard voltages.
  • Protects AC/DC variable speed drives from electrical noise and surges
  • Compact design for industrial applications

Specifications

Enclosure Colour
ANSI 61 Grey, UL50
Frequency
60 Hz
Height
51.5 in
Height
1308.1 mm
Length
34 in
Length
863.6 mm
Material
Copper
Mounting Method
Floor
Phase
3PH
Poles
3
Primary Voltage
208 V
Secondary Voltage
230
Series
HPS Drive Isolation Transformers
Size
275 kVA
Sound Level dBA
Meets NEMA ST-20 standards
Temperature Rise
115 Deg C
Transformer Rating
275KVA
Voltage Rating
208–480 V
Wall Mounting
No
Warranty
10 year warranty
Weight
32 lbs./100ft
Width
39.5 in
Width
1003.3 mm
Winding
Copper
A - 15.0 kV bushing

015J0400AN

A - 15.0 kV bushing
O Plus C - 34.5 kV bushing

034Z3000AW

O Plus C - 34.5 kV bushing

Frequently Asked Questions about Hammond Power

What certifications and standards do Hammond Power products comply with?

Hammond Power products are certified to UL (Underwriters Laboratories) and CSA (Canadian Standards Association) standards in North America. Our products meet rigorous safety and performance requirements, with many items classified as UL Listed Products or Recognized Components. We also comply with international certifications including China Compulsory Certification (CCC), C-Tick for Australian EMC requirements, and ANCE for Mexico.

What is Hammond Power's warranty policy?

Hammond Power provides a standard one-year warranty on all products, covering defects in workmanship and materials. Products will be repaired or replaced free of charge if found defective upon factory inspection. The warranty does not cover damage from improper handling, incorrect application, or faulty installation.

What industries and applications are Hammond Power products used for?

Hammond Power products are engineered for critical industrial and commercial applications across multiple sectors, including petrochemical, mining, construction, renewable energy, e-mobility, power storage, and microgrids. Their comprehensive product range of dry-type transformers, power quality solutions, and magnetic components enables electrical distribution and electrification in diverse industrial environments worldwide.

What are the main product lines offered by Hammond Power?

Hammond Power Solutions offers a comprehensive range of dry-type and liquid-filled transformers for industrial and commercial applications. Their primary product lines include power transformers for renewable energy, e-mobility, data centers, microgrids, and industrial settings. The company provides both standard and custom-designed transformer solutions that are critical to electrical distribution networks across multiple industries.

What are the key features of Hammond Power products?

Hammond Power products feature advanced dry-type and liquid-filled transformers engineered for diverse industrial applications, with capabilities spanning renewable energy, e-mobility, data centers, microgrids, and industrial/commercial sectors. Key features include high-performance electrical steel laminations, windings available in copper or aluminum, advanced insulation systems (VPI or Cast Resin), Basic Impulse Level ranges from 10 kV to 250 kV, and custom design capabilities with over 3,000 unique transformer designs engineered annually.

What environmental ratings do Hammond Power products have?

Hammond Power offers industrial enclosures with comprehensive environmental ratings, including UL/cUL 508A ratings of Type 1, 2, 3, 4, 4X, 12, and 13. Their products meet IEC 60529 IP66 standards, providing robust protection against dust, water ingress, and harsh environmental conditions. Specific ratings vary by product series, with options ranging from indoor Type 1 enclosures to outdoor-rated Type 4X enclosures suitable for challenging industrial environments.

What technical support does Hammond Power offer?

Hammond Power Solutions provides comprehensive technical support through multiple channels. Customers can access technical resources via phone support in Canada, the United States, Mexico, and internationally, with toll-free numbers and regional contact points. Their technical team offers personalized assistance for custom design inquiries, helping customers find standard transformer and power solutions or develop specialized electrical products for various industrial applications.

What communication protocols do Hammond Power products support?

Hammond Power products support multiple industrial communication protocols, including Modbus RTU, PROFIBUS DP, PROFINET, EtherNet/IP, and CANopen. These protocols enable flexible connectivity across industrial automation platforms, supporting various network topologies and high-speed data transmission for comprehensive industrial control and monitoring applications.

What accessories are available for Hammond Power products?

Hammond Power offers a comprehensive range of accessories for industrial electrical components, including HME Series handles with key locking and padlocking options, door stop kits, light kit mounting brackets, and standard hardware like mounting screws and washers. These accessories are designed to enhance functionality and installation flexibility across their product lines.

How are Hammond Power products typically installed?

Hammond Power transformers are typically chassis-mounted using precise mounting hole centers and dimensions specific to each product series. Installation involves selecting the appropriate primary voltage configuration, securing the transformer to a mounting surface using the specified mounting holes, and connecting terminals according to the product's schematic. Most Hammond Power transformers feature multiple terminal options like solder or quick-connect terminals, allowing flexible and straightforward installation in industrial control and power distribution applications.