Over the last 35 years, Delta Transformers has designed and manufactured apparatus using the technology of magnetics to reduce and eliminate harmonic currents in low voltage power distribution systems.

THE QUALITY

The Mitigator e-Series provides the industry with the highest of standards for transformers designed to mitigate harmonics present in typical commercial, institutional and industrial environments. First in its class, the Mitigator e-Series leads the industry in both quality and performance.

THE EXPERIENCE

With more than 35 years’ experience in transformer design and manufacturing, Delta Transformers has introduced the latest in its line of industry leading products: the Mitigator e-Series. This family of transformers, whose primary function is the mitigation of harmonics in typical low voltage power distribution systems, is available in e-Platinum, e-Gold and e-Silver configurations. These variations give customers the flexibility to choose the right product for each unique application.

THE DESIGN

The patented* design of the Mitigator e-Series results in a quality unit that is certifiable and tested to meet international standards and users preferences. The field adjustable phase shifting option is first in its class for the industry, allowing increased flexibility in the field. The assurance of the Delta Quality Process is enhanced by the application of an Epoxy Vacuum Impregnation - E.V.I. - process, which provides superior environmental protection for all units.

FIELD ADJUSTABLE PHASE SHIFT

The Mitigator e-Series comes with optional field adjustable phase shift on the primary winding, a design that allows selection of the desired primary to secondary phase shift while in the field. This innovation gives customers maximum flexibility to adjust each transformer to suit actual application situations.

CORE AND COIL DESIGN

The Mitigator e-Series core is designed using non-aging silicon steel with a three leg common core topology. Its coils are built with electrolytic copper magnetic wire, geometrically designed to allow for uniform cooling. This combined design is such that transformer direct and zero sequence impedance are maintained at a level that reduces voltage distortion generated by harmonic currents.

EPOXY VACUUM IMPREGNATION - E.V.I. - PROCESS

An epoxy compound is impregnated into the Mitigator e-Series’s core and coil in a sealed vacuum pressure tank during production. Impervious to cracking or peeling, this compound increases the mechanical strength of the unit and reduces noise emissions. The E.V.I. Process enhances transformer performance by improving the winding insulation. The Mitigator e-Series with E.V.I. performs in carefully protecting the core and coil, particularly in heavily contaminated environments.

TESTED AND CERTIFIED (TO MEET HIGH EFFICIENCY STANDARDS PER CSA C802,2 - 2018 & LATEST NRCAN STANDARDS)

Designed to individual specifications, each unit in the Mitigator e-Series is also built to strict international standards, including CSA standards. Units are performance tested and certified at Delta Transformers state of the art Certifying Test Facilities, where customers are invited to observe the process.

PRODUCT CONFIGURATION

Three phase, 60Hz systems display a characteristic 120 degrees shift between each phase. On systems with balanced loads, the neutral current is zero. Loads that result in the generation of harmonics and the distortion of current and voltage present different characteristics and require specific transformer configurations.

The Delta Primary – Zig Zag Secondary Transformer (0°C or -30°C)

• Single output three phase secondary

• 0° or -30° phase shift from primary to secondary

• The 3rd, 9th and 15th harmonic currents arecancelled by flux opposition at low impedance

• Reduction of current imbalance

• Less voltage distortion due to low zero-sequence impedance

• Improved power factor

The Delta Primary – Zig Zag Secondary Transformer (-15°C, -45°C or 0°C, -30°C)

• Double output three phase secondary

• Cancellation of the 3rd, 5th, 7th, 9th, 15th,17th and 19th harmonics

• Elimination of the 11th and 13th harmonics (by utilizing the phase shift between the transformer windings so that these currents subtract at the common bus with 11th and 13th harmonic currents existing at the bus)

• Improved power factor

Applications

HEALTH CARE INSTITUTIONS

Health care facilities depend on a complex array of high-tech biomedical instruments delivering essential services such as patient diagnosis and life support systems. The Mitigator e-Series helps provide stable and consistent power to these critical electronic devices.

COMMERCIAL OFFICE BUILDINGS

Commercial buildings are home to a wide range of organizations that rely on computer hardware and other sensitive electronic equipment. The Mitigator e-Series helps ensure that these device seperate efficiently and without costly disruptions to daily operations.

CONDOMINIUMS

Multi-residential buildings provide services requiring a variety of electrical loads, all of which must work together for optimum service efficiency. From central services to water, air, fire and security systems and residential supply, the Mitigator e-Series can provide multi-residential environments with the right transformer for specific electrical loads.

AIRPORT TRANSPORTATION FACILITIES

Communications, air traffic control and airfield lighting are among an airport’s most critical functions. The Mitigator e-Series helps ensure that there is a continuous and stable power supply available for the operation of these services, contributing to safe and efficient airport operations.

INDUSTRIAL APPLICATIONS

Advances in automation and motor control technology have resulted in major benefits and energy savings for industrial users. The power quality problems associated with these advances – such as power factor, voltage distribution and resonance – can be resolved with new approaches to systems design and the installation of appropriate equipment. The Mitigator e-Series delivers effective phase shifting technology that eliminates most of the harmful harmonics in industrial applications while improving the total power factor and voltage distortions.

About Delta Transformers

Delta Transformers Inc. considers our customers as business partners. Customer satisfaction is our priority; we are committed to long-term relationships with our customers.

Delta Transformers Inc’s mission statement:

• Answer to the immediate needs of our customers and to anticipate their future needs.

• Choose suppliers and sub-contractors who share our objectives of quality and customer satisfaction.

• Manufacture and promptly ship quality products that meet customer specifications.

• Ensure that our employees are committed to the trademark, The Delta Touch.

Delta Transformers Inc. produces a wide range of diversified dry type transformers that answer to a multitude of needs and applications, and this in constant respect for the environment and in a continuing spirit of innovation.