ANSI Power Transformers
Last Updated: January 16, 2025 Reviewed by: Jon Lowy, consulting engineer
Description
ANSI Power Transformers are electrical devices designed to transfer electrical energy between two or more circuits through electromagnetic induction. They are typically used to step up or step down voltage levels, ensuring the efficient transmission and distribution of electrical power across long distances. These transformers are built to meet the standards set by the American National Standards Institute (ANSI), ensuring reliability, safety, and performance in various electrical systems.
Working Principle
ANSI Power Transformers operate on the principle of electromagnetic induction. When an alternating current flows through the primary winding, it creates a magnetic field that induces a voltage in the secondary winding. This process allows the transformer to change voltage levels while maintaining the same frequency. The core of the transformer, usually made of laminated silicon steel, enhances the magnetic coupling between the windings, improving efficiency. These transformers are crucial in minimizing energy loss during power transmission, making them indispensable in modern electrical grids.
Applications
ANSI Power Transformers are widely used in electrical substations, where they play a critical role in stepping down high transmission voltages to lower distribution levels suitable for residential and commercial use. For example, in urban areas, they are used to reduce 132 kV transmission lines to 11 kV for local distribution. In industrial settings, they can be used to step up voltage levels for specific machinery that requires higher operating voltages. Additionally, they are employed in renewable energy systems, such as wind farms, to convert generated power to grid-compatible voltage levels.
Advantages over other Power Transformers
One of the key advantages of ANSI Power Transformers is their adherence to stringent standards, which ensures high reliability and safety. For instance, they are designed to withstand specific environmental conditions, such as temperature extremes and seismic activity, making them suitable for diverse geographical locations. Additionally, their robust construction often results in longer service life and reduced maintenance requirements compared to non-standard transformers. The standardization also facilitates easier integration into existing systems, reducing installation time and costs.
Limitations
Despite their advantages, ANSI Power Transformers have certain limitations. They can be quite large and heavy, making transportation and installation challenging, especially in remote or constrained locations. The initial cost of these transformers can be high due to the quality materials and manufacturing processes required to meet ANSI standards. Furthermore, they may not be the best choice for applications requiring frequent voltage adjustments, as they are typically designed for fixed voltage transformations.
Considerations
When considering ANSI Power Transformers, it is important to evaluate the initial costs, which can be substantial due to the high-quality materials and compliance with ANSI standards. Operating expenses should also be considered, as these transformers are designed for high efficiency, potentially reducing energy losses and lowering long-term costs. Durability is a significant advantage, as their robust design often results in a longer lifespan and reduced maintenance needs. However, replacement and maintenance costs should be factored into the overall budget, as specialized components and expertise may be required. Additionally, accuracy in voltage transformation is generally high, but it is crucial to ensure that the transformer specifications match the intended application to avoid inefficiencies.
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // ANSI/UL/Transformer//1500KVA 1600KVA SCB Dry Transformer [See More]
- Standards / Compliance: RoHS; ANSI; IEC; UL; CE
- Cooling Method: Air; Fan cooling Natural cooling
- Transformer Type: Distribution Transformer; High Voltage Transformer; Isolation; Neutral Grounding Transformer; Power Transformer; Three Phase Transformers
- Mounting: base mounted
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // ANSI/UL/Transformer//3500KVA 3000 KVA Cast Resin Dry Type Transformer SCB13 SCB14 SCB15 [See More]
- Standards / Compliance: RoHS; ANSI; IEC; UL; CE
- Cooling Method: Air; Fan cooling Natural cooling
- Transformer Type: Distribution Transformer; High Voltage Transformer; Isolation; Neutral Grounding Transformer; Power Transformer; Three Phase Transformers
- Mounting: base mounted
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // ANSI/UL/Transformer//600KVA 800KVA SCB Dry Transformer [See More]
- Standards / Compliance: RoHS; ANSI; IEC; UL; CE
- Cooling Method: Air; Fan cooling Natural cooling
- Transformer Type: Distribution Transformer; High Voltage Transformer; Isolation; Neutral Grounding Transformer; Power Transformer; Three Phase Transformers
- Mounting: base mounted
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // IP 54 Single Phase 3 Phase 110v to 220v Isolation Waterproof Transformer 10KVA 30KVA 50KVA 60KVA 100KVA 300KVA 500KVA for Outdoor Use [See More]
- Standards / Compliance: RoHS; ANSI; CSA; IEC; UL; CE
- Cooling Method: Air; Fan cooling Natural cooling
- Transformer Type: Distribution Transformer; Isolation; Power Transformer; Three Phase Transformers
- Mounting: Floor mounted
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // ANSI/UL/Transformer//SCB13 SCB14 1000kVA 3 Phase Distribution Transformer Dry Type SCB 33KV 20KV 10KV/0.4KV Transformer [See More]
- Standards / Compliance: RoHS; ANSI; IEC; UL; CE
- Cooling Method: Air; Fan cooling Natural cooling
- Transformer Type: Distribution Transformer; High Voltage Transformer; Isolation; Neutral Grounding Transformer; Power Transformer; Three Phase Transformers
- Mounting: base mounted
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // ANSI/UL/Transformer [See More]
- Standards / Compliance: RoHS; ANSI; CSA; IEC; UL; CE
- Cooling Method: Air; Natural cooling
- Transformer Type: Distribution Transformer; Isolation; Medical Transformer; Power Transformer; Three Phase Transformers
- Mounting: Floor mounted
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // UL Buck-Boost Transformer 480v Delta to 277v Single/Three Phase ANSI Power Transformer for North American Business and Industry [See More]
- Standards / Compliance: RoHS; ANSI; CSA; IEC; UL; CE
- Cooling Method: Air; Natural cooling
- Transformer Type: Buck-Boost Transformers; Distribution Transformer; Isolation; Medical Transformer; Power Transformer; Three Phase Transformers
- Mounting: Floor mounted
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // UL Certified Dry Step up down Isolation Transformer 480V 277V 240V 208V 120V 110V With UL Certification [See More]
- Standards / Compliance: RoHS; ANSI; CSA; IEC; UL; CE
- Cooling Method: Air; Fan cooling Natural cooling
- Transformer Type: Distribution Transformer; Isolation; Medical Transformer; Power Transformer; Three Phase Transformers
- Mounting: Floor mounted
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // UL Listed 480v Delta to 120/240v Single-phase Split Transformer 5kVA 10kVA 15kVA 20kVA 30kVA [See More]
- Standards / Compliance: RoHS; ANSI; CSA; IEC; UL; CE
- Cooling Method: Air; Natural cooling
- Transformer Type: Distribution Transformer; Isolation; Medical Transformer; Power Transformer; Three Phase Transformers
- Mounting: Floor mounted
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // UL Listed ANSI Three/Single Transformer 75kVA 100kVA 150kVA [See More]
- Standards / Compliance: RoHS; ANSI; CSA; IEC; UL; CE
- Cooling Method: Air; Natural cooling
- Transformer Type: Distribution Transformer; Isolation; Medical Transformer; Power Transformer; Three Phase Transformers
- Mounting: Floor mounted
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // ul transformer 1000kva [See More]
- Standards / Compliance: RoHS; ANSI; CSA; IEC; UL; CE
- Cooling Method: Air; Natural cooling
- Transformer Type: Distribution Transformer; Isolation; Medical Transformer; Power Transformer; Three Phase Transformers
- Mounting: Floor mounted
from Shenzhen Xingkerong Technology Co., Ltd
Home // All Collections // Transformer // UL Transformer 1000 KVA Dry Type Distribution Transformer- 208V Delta Primary - 480Y/277 wye-N Secondary - NEMA 1 [See More]
- Standards / Compliance: RoHS; ANSI; CSA; IEC; UL; CE
- Cooling Method: Air; Natural cooling
- Transformer Type: Distribution Transformer; Isolation; Medical Transformer; Power Transformer; Three Phase Transformers
- Mounting: Floor mounted
from Schaffner EMC Inc.
Schaffner is the leading supplier of dry-type transformer products for distribution and trackside power applications. Strong technical expertise and vast application experience allow us to design the best solutions for these demanding applications. Our products are installed in traction power... [See More]
- Standards / Compliance: ANSI; CSA; IEC; UL; VDE; BS, DIN, EN IEEE, IRIS, ISO
- Cooling Method: Cooling Methods: AN, AF, WD
- Transformer Type: Distribution Transformer
- Power Rating (VA): 1.00E7
from Acme Electric Corp. / Power Distribution Products
The transformers in the section are autotransformers designed to change a wide range of voltages to the standard motor voltages for domestic appliances, air conditioners and related equipment. Correcting high or low supply voltage conditions to match the voltage requirements of appliances and... [See More]
- Standards / Compliance: ANSI; CSA; UL; CE and IEEE
- Cooling Method: Air
- Transformer Type: Power Transformer
- Primary Frequency: 50 / 60 Hz
from Powertronix Inc.
Isolation Station FLEX Series is used in medical devices to provide medical isolation from the main electricity supply, limiting the leakage current and provide patient and operator protection. ZERO Failure. Isolation Station FLEX Series is modular and smart design to configure for end application. [See More]
- Standards / Compliance: RoHS; ANSI; CSA; TUV
- Mounting: Floor, Cart, Customizable Mounting
- Transformer Type: Isolation; Single Phase Transformer
- Input Voltage: 100 to 240
from Neeltran, Inc.
Neeltran designs and manufactures its own rectifier-transformers and rectifiers in the same facility. This ability allows us to understand harmonics and losses very well. It also gives our designers the experience to design a high quality custom unit. [See More]
- Standards / Compliance: ANSI; CSA; IEC; IEEE
- Cooling Method: Air
- Transformer Type: Rectifier Transformer
- Input Voltage: 34000
from Schaffner EMC Inc.
Schaffner high efficiency transformers offer the best ratio between initial cost and operating cost for sensitive applications. We are experienced in designing the ideal construction and finding the optimum material mix for lower transformer losses. Lowering the energy consumption would result in... [See More]
- Standards / Compliance: ANSI; CSA; IEC; UL; VDE; BS, DIN, EN IEEE, IRIS, ISO
- Power Rating (VA): 1.00E7
- Cooling Method: Cooling Methods: AN, AF, WD
- Output Type: AC
from Acme Electric Corp. / Power Distribution Products
Buck-Boost Transformers are small single phase transformers designed to reduce (buck) or raise (boost) line voltage from 5-20%. The most common example is boosting 208 volts to 230 volts, usually to operate a 230 volt motor such as an air-conditioner compressor, from a 208 volt supply line. [See More]
- Standards / Compliance: ANSI; CSA; UL; CE and IEEE
- Cooling Method: Air
- Transformer Type: Buck-Boost Transformers; Power Transformer
- Primary Frequency: 60 Hz
from Powertronix Inc.
Isolation Station is used in medical devices to provide medical isolation from the main electricity supply, limiting the leakage current and provide patient and operator protection. The possibility of symptomless failure is almost zero. Powertronix Isolation station is modular and smartly design to... [See More]
- Standards / Compliance: RoHS; ANSI; CSA; IEC; TUV
- Mounting: Floor, Rack, Wall, Cart, Customizable Mounting
- Transformer Type: Isolation; Single Phase Transformer
- Power Rating (VA): 300 to 3000
from Neeltran, Inc.
Neeltran, designs and builds its own rectifier-transformers and rectifiers. This ability allows us to understand the extreme duty a hazardous location power supply has to perform in extreme environments. This gives our designers the experience to design the highest quality units available. For the... [See More]
- Standards / Compliance: ANSI; CSA; IEC; UL; IEEE
- Cooling Method: Air (optional feature); Oil (optional feature)
- Transformer Type: Rectifier Transformer; Three Phase Transformers
- Primary Frequency: 50 / 60 Hz
from Schaffner EMC Inc.
Schaffner middle frequency (MF) transformers take your high-demand and advanced applications to the next level. Since the beginning of the MF transformers development, we have been at the cutting edge of this technology. Combining our innovative winding design with carefully selected premium core... [See More]
- Standards / Compliance: ANSI; CSA; IEC; UL; VDE; BS, DIN, EN IEEE, IRIS, ISO
- Cooling Method: Cooling Methods: AN, AF, WD
- Transformer Type: Middle Frequency (MF) Transformer
- Power Rating (VA): 5.00E6
from Acme Electric Corp. / Power Distribution Products
All Acme Drive Isolation Transformers (DITs) above 7.5kVA are wound with strip windings to ensure the lowest possible eddy current losses. All our DITs use a three leg wound core. This superior design has very low losses and quiet operation. Both of these features combine to significantly reduce... [See More]
- Standards / Compliance: ANSI; CSA; UL; CE and IEEE
- Cooling Method: Air
- Transformer Type: Isolation; Power Transformer
- Mounting: Pad-Mounted
from Powertronix Inc.
Powertronix Isolation Station is used in medical devices to provide medical isolation from the main electricity supply, limiting the leakage current and provide patient and operator protection. The possibility of symptomless failure is almost zero. Powertronix Isolation station is modular and... [See More]
- Standards / Compliance: RoHS; ANSI; CSA; IEC; TUV
- Mounting: Floor, Rack, Wall, Cart, Customizable Mounting
- Transformer Type: Isolation; Single Phase Transformer
- Power Rating (VA): 300 to 1800
from Neeltran, Inc.
Added Benefits of Oil Filled Grounding Transformers Supplied by Neeltran - Robust and Reliable Power to run your 24/7 processes. [See More]
- Standards / Compliance: ANSI; CSA; IEC; IEEE
- Cooling Method: Oil
- Transformer Type: Rectifier Transformer
- Input Voltage: 34000
from Schaffner EMC Inc.
Schaffner provides isolation multi-pulse drive transformers for variable speed and variable frequency drive applications. These units, also named rectifier transformers, are not just oversized standard units, but are designed specifically for inherent harmonics, minimal space requirements, and other... [See More]
- Standards / Compliance: ANSI; CSA; IEC; UL; VDE; BS, DIN, EN IEEE, IRIS, ISO
- Cooling Method: Cooling Methods: AN, AF, WD
- Transformer Type: Isolation
- Power Rating (VA): 1.00E7
from Acme Electric Corp. / Power Distribution Products
The Acme Electric AE and CE Series Industrial Control Transformers are designed specifically for machine tool control circuit applications. These transformers have the ability to handle potentially damaging high in-rush currents that occur when electromagnetic components are energized, without... [See More]
- Standards / Compliance: ANSI; CSA; UL; CE and IEEE
- Cooling Method: Air
- Transformer Type: Encapsulated Transformers; Industrial Control Transformer; Power Transformer
- Mounting: Chassis
from Powertronix Inc.
Powertronix Isolation Station is used in medical devices to provide medical isolation from the main electricity supply, limiting the leakage current and provide patient and operator protection. The possibility of symptomless failure is almost zero. Powertronix Isolation station is modular and... [See More]
- Standards / Compliance: RoHS; ANSI; CSA; IEC; TUV
- Mounting: Floor, Rack, Wall, Cart, Customizable Mounting
- Transformer Type: Isolation; Single Phase Transformer
- Power Rating (VA): 300 to 1000
from Schaffner EMC Inc.
Schaffner brings a wide experience in the traction rolling stock transformer business. Since decades, we design and produce successfully high quality devices and solutions for the railway market. Our traction transformers stand for exceptional reliability and superior product attributes. Shock and... [See More]
- Standards / Compliance: ANSI; CSA; IEC; UL; VDE; BS, DIN, EN IEEE, IRIS, ISO
- Cooling Method: Cooling Methods: AN, AF, ON/OF
- Transformer Type: Traction Transformer
- Power Rating (VA): 2.00E6
from Acme Electric Corp. / Power Distribution Products
Acme's single phase transformers are design for use in industrial and commercial application. Transformers rated up to 25 kVA are enclosed within an encapsulated, NEMA 3R enclosures. Standard transformers rated from 37.5 to 250 kVA are enclosed in ventilated, NEMA 2 enclosures (optional... [See More]
- Standards / Compliance: ANSI; CSA; UL; CE and IEEE
- Cooling Method: Air
- Transformer Type: Power Transformer; Single Phase Transformer
- Primary Frequency: 60 Hz
from Powertronix Inc.
Powertronix Isolation Station is used in medical devices to provide medical isolation from the main electricity supply, limiting the leakage current and provide patient and operator protection. The possibility of symptomless failure is almost zero. Powertronix Isolation station is modular and... [See More]
- Standards / Compliance: RoHS; ANSI; CSA; IEC; TUV
- Mounting: Floor, Rack, Wall, Cart, Customizable Mounting
- Transformer Type: Isolation; Single Phase Transformer
- Power Rating (VA): 300 to 600
from Acme Electric Corp. / Power Distribution Products
Acme ’s low voltage distribution transformers are designed for industrial and commercial applications. All of Acme ’s general purpose transformers are rated for 600 volts and below. Encapsulated units are offered in ratings up to 15kVA. Ventilated units are available in ratings up to... [See More]
- Standards / Compliance: ANSI; CSA; UL; CE and IEEE
- Cooling Method: Air
- Transformer Type: Autotransformer; Power Transformer; Three Phase Transformers
- Mounting: Pad-Mounted
from Acme Electric Corp. / Power Distribution Products
The Acme Finger/Guard line of Touch-Protected Industrial Control Transformers offers the most advanced and versatile design concepts available to the marketplace today. They are designed to meet Acme's rigid standards for mechanical durability as well as surpass Agency and Industry electric... [See More]
- Standards / Compliance: ANSI; CSA; UL; CE and IEEE
- Cooling Method: Air
- Transformer Type: Industrial Control Transformer; Power Transformer
- Mounting: Chassis
from Acme Electric Corp. / Power Distribution Products
Many of today's electronic devices are non-linear loads generating high levels of harmonic currents that are then fed back onto your distribution system. This waveform distortion results in overheating of motors and transformers, increased neutral currents and malfuntion/damage to other equipment on... [See More]
- Standards / Compliance: ANSI; CSA; UL; CE and IEEE
- Cooling Method: Air
- Transformer Type: Power Transformer
- Mounting: Pad-Mounted
from Acme Electric Corp. / Power Distribution Products
Some specifications require installation of large control transformers, usually 1000 to 5000 VA outside of the control cabinet. This means the transformer must be in a sheet metal enclosure instead of the usual open core and coil construction method. Acme meets this need by providing all of the... [See More]
- Standards / Compliance: ANSI; CSA; UL; CE and IEEE
- Cooling Method: Air
- Transformer Type: Power Transformer
- Primary Frequency: 50 / 60 Hz
from Acme Electric Corp. / Power Distribution Products
Amce's Low Voltage Lighting products provide a safe, long lasting, highly reliable power source; a perfect selection for landscape applications as well as interior use. Low voltage lighting is a creative medium with unlimited application possibilities. [See More]
- Standards / Compliance: ANSI; CSA; UL; CE and IEEE
- Cooling Method: Air
- Transformer Type: Power Transformer
- Primary Frequency: 60 Hz
from Acme Electric Corp. / Power Distribution Products
Non-linear loads generate high levels of harmonic currents. When supplying power to these loads, a special transformer design is necessary. Typical non-linear loads include desktop computers, AC variable speed drives, HID lighting, electronic ballasts, inverters and welders. Of these non-linear... [See More]
- Standards / Compliance: ANSI; CSA; UL; CE and IEEE
- Cooling Method: Air
- Transformer Type: Isolation; Power Transformer
- Mounting: Pad-Mounted
from Acme Electric Corp. / Power Distribution Products
Acme's TA and TB series are dry-type step-down transformers with an open core and coil design. These units are designed specifically for industrial control applications where the energizing of electromagnetic components creates high in-rush current that must be accommodated without sacrificing the... [See More]
- Standards / Compliance: ANSI; CSA; UL; CE and IEEE
- Cooling Method: Air
- Transformer Type: Industrial Control Transformer; Power Transformer
- Mounting: Chassis
from Acme Electric Corp. / Power Distribution Products
Acme Powerwise C3 Transformers are 30% better performing in efficiency than standard TP1 transformers. Thanks to a more efficient core and higher-grade electrical steel that minimizes losses, these energy-efficient units even exceed the requirements of the US Department of Energy Candidate Standard... [See More]
- Standards / Compliance: ANSI; CSA; UL; CE and IEEE
- Cooling Method: Air
- Transformer Type: Power Transformer; Three Phase Transformers
- Mounting: Pad-Mounted