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Hammond Transformers

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Control Transformers

Hammond Control Transformers PH Series

PH Series Control TransformersThe HPS Imperator series of machine tool rated industrial control transformers are specifically designed to meet the high inrush industrial applications where electromagnetic components such as relays, solenoids and magnetic motor starters are used. With 11 standard voltage groups, a VA range from 50VA to 5000VA and available with standard secondary and optional primary fuse kits, the HPS Imperator provides the perfect solution for any application.

Hammond Control Transformers Enclosed Q Series Encapsulated

Enclosed Q Series Encapsulated Control TransformersFor applications where an indoor or outdoor, cost effective approach to general purpose loads is desired, consider the 'Q' series, single phase, enclosed encapsulated control transformer. These units have a standard NEMA Type 3R enclosure, are available in 3 standard voltage combinations and are specifically designed for the following applications:

  • General purpose enclosed control applications used to adjust a supply voltage to match a load requirement
  • Supplying machine tool circuits.
  • Actuating relays, bells, and signal and alarm systems.
  • Operating small motors, valves and dampers.
  • Industrial lighting and circuit isolation.

Buck-Boost Transformers

Buck-Boost TransformersBuck-boost transformers offer an economical solution to the adjustment of line voltages that are slightly above or below normal. When a Buck-Boost transformer is connected as an autotransformer, only a portion of the load kVA is actually transformed. The majority of the load kVA is passed directly through to the source. For this reason a Buck-Boost transformer may be used to supply a much larger load kVA than is indicated on the nameplate. Hammond offers single phase units, in ratings from 50VA to 10,000VA in three standard voltages. Custom voltages are also available.

Low Voltage Lighting Transformers

Low Voltage Lighting TransformersFor a cost effective approach to supply low voltage for recreational, lighting, or light duty industrial applications, consider the 'Q' style encapsulated transformer.

For a general purpose load including actuating relays, bells, control and low voltage circuits, this enclosed encapsulated, NEMA 3R rated transformer is ideal for simplicity and efficiency.

Custom/Specialty Hammond Control Transformers

Custom Specialty Control TransformersHammond prides itself in its ability to manufacture, on a timely basis, custom designed and built transformers for almost any application. This of course includes custom control transformers, medium voltage control transformers or current transformers. If you have a need for one of these types of transformers, but do not see it listed here or in our related catalog, please send your detailed request to our quotations department and they will respond to it within 48 hours.

Distribution Transformers

General Purpose Distribution Transformers

General Purpose Distribution TransformersHammond's line of single phase and three phase general purpose distribution transformers are rated for 600 volts and below. They are generally used for supplying appliance, lighting, motorized machine and power loads from electrical distribution systems. They are either ventilated or totally enclosed, and are available with either aluminum or copper windings in standard ratings from 50 VA up to 750 kVA. Shielded distribution transformers are also available, which provide a copper electrostatic shield between the primary and secondary windings. The shield is grounded and thus shunts most noise and transients to the ground path rather than passing them through to the secondary. Applications for shielded transformers are similar to those above, and are ideal for commercial or electrical installations where electronic circuitry operating at low voltage DC is present and is very sensitive to 'noise'.

Encapsulated General Purpose Transformers

Encapsulated General Purpose TransformersHammond's line of single phase and three phase general purpose encapsulated transformers are rated for 600 volts and below. Encapsulated transformers are standard general purpose distribution transformers encased in a electrical grade silica and epoxy, and totally enclosed in a heavy duty NEMA 3R style enclosure. All leads are brought out to a separate front accessible termination compartment. All encapsulated transformers are available with copper windings in single phase ratings from 0.05 kVA up to 37.5 kVA and three phase ratings from 2kVA up to 45 kVA. Typical applications of encapsulated transformers are pulp and paper plants, steel mills, food processing plants, breweries, mines, marine and shipboard installations etc. Electrostatic shields, a copper electrostatic shield between the primary and secondary windings, are standard on single phase units above 0.50 kVA and optional on most others.

Non-Linear (K-factor) Distribution Transformers

Non-Linear (K-factor) Distribution TransformersThe use of electronic equipment has continued to grow in both offices and industrial plants. Either switching power supplies or rectifier circuits power these electronic devices. Examples of these devices include computers, fax machines, copiers, printers, cash registers, UPS's and solid-state ballasts. They all contribute to the distortion of the current waveform and the generation of Harmonics. General purpose transformers, most frequently used for applications such as commercial or institutional buildings, will, by definition, supply widely varied single phase loads as described. K Factor transformers are general purpose transformers but are designed to tolerate the harmonic distortion associated with these loads.

Energy Efficient (TP1) Distribution Transformers

Energy Efficient (TP1) Distribution TransformersHammond is pleased to introduce a line of energy efficient, dry type, general purpose distribution transformers to meet NEMA TP-1 specifications. In the past several years, there has been an accelerated rate of change to introduce energy efficiency standards for transformers in North America. Many products have preceded the initiatives for transformers in an overall effort to optimize manufactured goods for environmental concerns. Governments are encouraging users to consider energy efficient products like dry type transformers, in an effort to help reduce carbon dioxide emissions. In addition to the benefits to the environment, energy efficient transformers also can realize substantial savings in operating costs thereby having a direct impact on the initial investment evaluated over a period of time.

The US Energy Policy Act of 2005

  • Introduction to TP1 Legislation
  • Energy Policy Act 2005 - Transformer Summary
  • Part 431 - Energy Efficiency Program for Certain Commercial & Industrial Equipment
  • HPS and the impact of EPACT 2005 explainted - presentation

Drive Isolation Transformers

Drive Isolation TransformersWith today's technological advances in solid-state power control devices, the use of AC and DC variable speed drives has proliferated in many industrial markets. General purpose distribution transformers are not adequate for this type of application. Hammond's Drive Isolation transformers are designed to meet the rugged demands of both AC and DC variable speed drives and also to provide the required voltage change. 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. A duty cycle of one start for every two hours is permitted. 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 in both aluminum and copper. Nonstandard sizes and voltages are available upon request.

AutoTransformers

AutoTransformersHammond three phase autotransformers are available for applications where small voltage corrections are necessary in a distribution system. They are frequently used as an economical alternative to three phase general purpose distribution transformers to adjust the supply voltage to match specific load requirements when load isolation from the supply line is not required. Autotransformers can be used as either a step-up or step-down transformer. Available with either aluminum or copper windings in ratings from 3kVA to 500kVA.

Custom/Specialty Hammond Distribution Transformers

Custom/Specialty Distribution TransformersHammond custom distribution transformers are designed and constructed to meet or exceed the requirements of our standard distribution transformer general applications. These transformers are provided either ventilated or totally enclosed. To meet special applications and requirements, custom/specialty designs are available to meet your specific application needs. If you have a need for one of these types of transformers, but do not see it listed here or in our related catalog, please either complete the custom distribution transformer specification form or send your detailed request to our quotations department and they will respond to it within 48 hours.

RM Series Three Phase Line Reactors

RM Series Three Phase Line Reactors

RM Series Three Phase Line ReactorsUtilizing Variable Speed Drives to control motor speed has impacted industry both in energy savings and increased efficiencies. The challenge for today's designers is dealing with non-linear wave shapes generated by solid-state devices.

By choosing a Hammond RM series line reactor, many line problems such as nuisance tripping, line notching, harmonic distortion can be reduced or even eliminated. Additionally, performance, life expectancy and efficiency of both the motor and the drive itself are significantly enhanced. Hammond's RM line reactors are available in standard ratings from 2 amps to 1200 amps (or 0.5HP to 1200HP).

RC Series DV/DT Filters

RC Series DV/DT FiltersThe Hammond RC series DV/DT filters are specifically designed for drive/motor applications with long lead lengths (usually where the motor cable length is 20 feet and greater). They should always be installed next to the IGBT variable frequency drive. Typical installation applications include production process lines, conveyor systems and deep wells. Available in ratings from 2 amps to 600 amps, the RC series DV/DT filters combine appropriate values of inductance, capacitance and resistance to form a filter, which reduces DV/DT and peak voltages from the PWM voltage waveform. This combined with a 3% impedance reactor, which will reduce motor heating harmonics, will significantly increase the life of your motor.

Custom/Specialty Reactor Products

Custom/Specialty Reactor ProductsHammond Power Solutions Inc. produces a wide range of standard three phase line reactors and DV/DT filters. However, this is just some of our capabilities. We take pride in our ability to manufacture, on a timely basis, custom designed and built reactors and filters for almost any application. If you have a need for a custom designed or non-standard line reactor, but do not see it listed here or in our related catalog, please send your detailed request to our quotations department and they will respond to it within 48 hours.

Motor Starting Auto Transformers

2909 Series Motor Starting Autotransformers

2909 Series Motor Starting AutotransformersThese three phase, 2 coil motor starting autotransformers are suitable for motor starters with 2 contacts, connected in open 'V' configuration. Phase voltage across the open 'V' tends to be slightly out of balance when compared to the other two phases. The 2909 series are available for motor horsepower ratings from 20HP to 1600HP.

3009 Series Motor Starting Autotransformers

3009 Series Motor Starting AutotransformersThese three phase, 3 coil motor starting autotransformers are suitable for motor starters with 3 contacts, connected in a 3 phase 'Wye' configuration. This provides balanced voltages across each phase. The 3009 series are also available for motor horsepower ratings from 20HP to 1600HP.

Custom/Specialty Motor Starting Autotransformers

Custom/Specialty Motor Starting AutotransformersFor applications requiring heavy-duty service with frequent starts or jogging, high inertia loads such as paper or steel mill drives, medium voltage or other unusual demands, Hammond can offer specially designed units to meet your requirements. If you have a need for a motor starting autotransformer, but do not see it listed here or in our related catalog, please send your detailed request to our quotations department and they will respond to it within 48 hours.

Clean Power Products

Voltage Regulators

Voltage RegulatorsPortable Voltage Regulators are easily moved from place to place and attractively finished to adapt to any workplace. They provide ideal protection in high noise areas where voltage fluctuations exceed the regulating range of the equipment/system power supply. Epoxy potted windings are impervious to moisture from accidental spills. This makes them ideal for use between any wall outlet and your equipment. Hammond voltage regulators are available in power ratings from 70VA to 2000VA with 120V output at 60Hz.

Line Voltage Conditioners

Line Voltage ConditionersHard Wired Line Voltage Conditioners are designed to be installed directly to the utility power source to provide dedicated clean power to one or more outlets (depending on the unit size), for a variety of equipment. They provide ideal protection in high "noise" areas where voltage fluctuations exceed the regulating range of the equipment/system power supply. Epoxy potted windings protect against moisture, dust and other airborne contaminants and are ideal for office or plant locations. They are available in power ratings from 250VA to 5000VA with a 120/240 output at 60Hz.

Dry Type Power Products

Medium Voltage Transformers

Medium Voltage TransformersHammond medium voltage transformers are designed for stepping down incoming higher voltage power to utilize voltages for commercial, institutional or industrial applications. The standard NEMA 3R rated ventilated construction is suitable for indoor or outdoor applications. Standard single phase units with aluminum or copper windings with ratings from 15kVA to 333kVA and three phase units with aluminum or copper windings with ratings from 15kVA to 750kVA are available. If you have a need for a medium voltage transformer, please send your detailed request to our quotations department and they will respond to it within 48 hours.

Standard Power Transformers

Standard Power TransformersWith the continued development in technology of materials, designs and manufacturing methods, the use of dry-type transformers is growing rapidly throughout North America. Hammond Power Transformers are suitable for any commercial, industrial, manufacturing or production process application. In addition to conventional indoor applications, our dry units are located outdoors, on drilling platforms, in network vaults and in every location where airborne contaminants pose a risk to electrical equipment. Hammond power transformers are available with aluminum and copper windings as a core & coil design, stubs up bus design in a ventilated enclosure or a standard bus to end design in a ventilated enclosure. Standard ratings from 500kVA, 1.2kV class up to 7500kVA, 34.5kV class. If you have a need for a custom power transformer, please send your detailed request to our quotations department and they will respond to it within 48 hours.

Custom/Specialty Power Transformers

Custom/Specialty Power TransformersHammond produces a wide range of standard three phase dry type power transformers. However, this is just some of our capabilities. When selecting Hammond, you will never be limited. Our specials capability includes ratings up to 30MVA and 46kV. We can build customized products for you affordably while still maintaining our short lead-time capabilities, for almost any application. If you have a need for a custom designed dry type power transformer, please either complete the custom power transformer specification form or send your detailed request to our quotations department and they will respond to it within 48 hours.

Specialty/Custom Transformers

Hammond specializes in custom built dry type transformers manufactured in any one of our five regional manufacturing facilities, designed and constructed to meet your specifications and all applicable UL, CSA, ANSI, NEMA and IEC standards. Hammond offers the broadest range of custom/specialty transformers in North America. We can supply transformers up to 36MVA to meet the most demanding applications and extreme environments.

This custom/specialty product offering includes:

  • Medium Voltage Control Transformers
  • Instrument & Constant Voltage Transformers
  • Air and Iron Core Reactors
  • Potted Transformers
  • Dry Type Station Service Transformers
  • Low Profile Isolation Transformers
  • Rectifier Transformers
  • Exciter Transformers
  • Multi-Pulse Transformers
  • Shovel Duty Magnetics
  • Marine Duty Transformers
  • Network Transformers
  • Low Profile, Vault Style Mining Transformers
  • Transformers Designed to MIL Specifications