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Overview
- HPS general purpose distribution transformers are rated for 600 volts and below.
- Meets North American Efficiency Standards: U.S. - DOE 10 CFR Part 431 (DOE 2016); Canada - SOR/2018-201, (NRCan 2019) & ON Reg. 404/12; Mexico - NMX-J-351-1-ANCE-2021
- HPS also offers a line of low voltage Smart Transformers with integrated power monitoring for enhanced energy management and real-time performance insights.
- Aluminum windings for lightweight durability and efficient heat dissipation
- Wye (Y) connection configuration for standard electrical system compatibility
Specifications
Application | General purpose for supplying appliance, lighting, motorized machine and power loads from electrical distribution systems. |
Cable Entry | Knock Outs |
Connection Type | 480D PV / 380Y/220 / 400Y/231 / 416Y/240 / 430Y/248 SV |
Cooling | Convection cooled |
Enclosure | Contact HPS |
Enclosure Color | ANSI 61 Grey, UL 50 |
Enclosure Type | Type 3R |
Frequency | 60 Hz |
Frequency Rating | 60 HZ |
Height | Contact HPS in |
Height | 52 in |
Height | 1320.8 mm |
Impedance | Typically 1.8% to 7.5% |
Insulation Class | 220°C |
KVA Rating | 300 KVA |
Length | 38 in |
Length | 965.2 mm |
Length | Contact HPS in |
Material | Aluminum |
Mounting | Contact HPS |
Mounting Method | Floor |
Number Of Phases | 3 |
Number Of Taps | ST-20 compliant |
Phase | A - 3PH Delta-Wye-N |
Phase | 3PH |
Poles | 3PH |
Primary Voltage | 480 VAC |
Primary Voltage | 480D V |
Secondary Voltage | 380Y/220, 400Y/231, 416Y/240, 430Y/248 V |
Series | SG3A |
Size | 300 kVA |
Sound Level dBA | Meets NEMA ST-20 standards |
Special Features | Meets current DOE 10 CFR part 431 (2016) and C802.2 efficiencies in an outdoor type enclosure. Smaller kVA sizes have standard input and/or output lugs, knockouts, and wall mounting brackets to save installation costs. |
Standard | CSA, UL |
Temperature Rating | Typical 30 Average/ 40 Maximum Deg C |
Temperature Rise | 150°C |
Termination | Mechanical Lugs |
Transformer Rating | 300kVA |
Type | Transformer > Distribution > DOE 2016 Energy Efficient > General Purpose > Three Phase |
Voltage Rating | 600V Class |
Voltage Rating | 600V Class, 480D PV primary, 380Y/220, 400Y/231, 416Y/240, 430Y/248 secondary |
Wall Mounting | No |
Warranty | 10 year warranty |
Weight | 2150 L |
Width | 34 in |
Width | 863.6 mm |
Width | Contact HPS in |
Winding | Aluminum |
Winding | A - Aluminum |
Package Dimensions (L x W x H) | 38 IN x 34 IN x 52 IN |
Package Dimensions (L x W x H) | 965 mm x 864 mm x 1321 mm |
Package Weight (Imperial) | 2150.000 L |
Package Weight (Metric) | 976.000 kg |
How to Install the SG3A0300KY Transformer
This guide provides step-by-step instructions for the safe installation and initial setup of the SG3A0300KY transformer, ensuring proper connections and configurations.
Estimated time: 1h
Tools needed:
Screwdriver, Wire strippers, Multimeter
Supplies needed:
Mounting screws, Terminal connectors, Grounding wire
- Inspect the transformer
Immediately after receiving the transformer, inspect it for any transit damage and verify it against the shipping documents. Report any damages to the carrier.
- Mount the transformer
Secure the transformer to a suitable surface using mounting screws. Ensure it is installed in an upright position and that it is accessible for maintenance.
- Connect the grounding wire
Connect the grounding wire to the main ground location on the transformer as per local codes and standards. Ensure all connections are tight and secure.
- Make cable connections
Connect the input and output cables to the appropriate terminals as indicated on the transformer nameplate. Use terminal connectors and ensure all connections are clean and tight.
- Verify connections
Before energizing, use a multimeter to check that all connections are correct and that there are no short circuits. Ensure the transformer is properly grounded.
- Energize the transformer
Once all connections are verified, energize the transformer and monitor for any unusual sounds or overheating. Check the output voltage to ensure it matches the nameplate specifications.
- Perform initial calibration
After energizing, balance the load across all phases and adjust any tap settings as necessary according to the nameplate instructions.
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.