SADTEM

SADTEM is a worldwide specialist in Medium Voltage Instrument Transformers for Indoor and Outdoor applications. They have been producing exceptional products for the global market for nearly 100 years. SADTEM’s main manufacturing facilities and operations center are located in Hauts-de-France, France, emphasizing their French origins and strategic positioning. If you or your system requires the best, then SADTEM is the product for you!

Rexel Utility has integrated the best in quality instrument transformers from SADTEM to provide an array of primary metering and protection solutions. Whether as stand-alone units for outdoor use, indoor switch gear mounted or complete pad-mounted or overhead assemblies, we can help you from design to ready-to-install supply.

Introduction to SADTEM Quality Instrument Transformers

As the French leader in medium voltage metering transformers, SADTEM offers a full range of instrument transformers engineered to meet the diverse needs of modern power systems. Their comprehensive product lineup includes voltage transformers, combined transformers, and medium voltage distribution transformers, all meticulously manufactured to deliver precise measurement and robust protection.

SADTEM’s instrument transformers are designed for both indoor and outdoor environments, making them ideal for commercial and industrial locations where reliability and safety are paramount. Each transformer is built to carry high currents efficiently, minimizing resistance and reducing the risk of damage to equipment and personnel.

With nearly 100 years of expertise, SADTEM stands out as a unique and trusted manufacturer in the medium voltage sector. The company is dedicated to providing customers with valuable information and support at every stage, from initial design to final installation. All products are rated to meet or exceed international standards such as IEC and CSA, ensuring dependable protection against power outages and electrical faults. Whether you are looking to upgrade your system or require a custom solution, SADTEM’s full range of instrument transformers delivers the performance and peace of mind that customers expect from a global leader.

SADTEM quality instrument transformers

SADTEM Quality Instrument Transformers

SADTEM is a private company, specializing in the manufacture of electrical transformers for Medium Voltage Measurement and Protection both for indoor and outdoor use, since 1929.

Rexel Utility has integrated the best in quality instrument transformers from SADTEM providing many advantages such as :

  • Casting process and resin allows for reduced sizes, reduced weights and optimum dielectric strengths
  • Pioneers in the use of cycloaliphatic resin insulators providing excellent creepage distances and resistance to surface tracking and flashover
  • Easy to mount in any position either on their own or in clusters on pole mounted bracket assemblies or in padmount enclosures
  • Dry type design – compact, rugged and require no maintenance
  • Built to CSA/IEEE standards and are Measurement Canada approved

These instrument transformers enable reliable energy transfer, support the integration of renewable energy sources, and enhance the resilience of energy infrastructure.

FEATURED PRODUCTS

SADTEM Products

SADTEM offers a comprehensive range of medium voltage instrument transformers, including current transformers and voltage transformers, designed for various applications in the electrical industry. Their product lineup also includes combined current and voltage transformers, available from 15kV to 52kV, ensuring versatility and adaptability for diverse system requirements.

SADTEM’s instrument transformers are engineered to help protect the electrical grid and connected infrastructure by detecting, isolating, and preventing disruptions, ensuring reliable power delivery.

Combined Transformers – KYE24

Combined Transformers – KYE24

The KYE24 is a dry type combined current and voltage transformer, assembling 3 single phase units into a 3 phase metering set.  Each unit is hot vacuum cast in an insulating resin to achieve a discharge free high voltage insulation.  Unit is available with a CSA rated BIL up to 150kV and primary current rating up to 600A (900A max).

  • Modular phases
  • Compact footprint
  • Lightweight
  • Fully insulated…no live parts
  • 200A or 600A elbow interface
  • Up to 28kV insulated, 150kV BIL
  • Measurement Canada approved to 0.15S CT accuracy
  • Optionally mounted inside the Brooks ELECTRAK® cabinet

Product Line

OKY Series

OKY Series

OKY Series is a single phase CT/VT combination units which are available in the range from; 15kV to 52kV and current levels up to 3200A.

  • CT/VT Combination Units
  • Compact
  • Measurement Canada approved to 0.15S CT accuracy
  • Up to 250kV BIL
Innovative – BBY Series

Innovative – BBY Series

  • Aluminum body (good mechanical impact strength and solid grounding)
  • Silicone bushing insulator (mitigates damage from a mechanical shock and has excellent hydrophobic properties)
  • Measurement Canada approved
  • Up to 350kV BIL
Indoor – Switchgear Mountable - CK15
Indoor – Switchgear Mountable - SW54
Indoor – Switchgear Mountable - RY6A
Indoor – Switchgear Mountable - RV15

Indoor – Switchgear Mountable

CT’S

  • Bar and Donut/Window Type
  • CSA and Measurement Canada approved to 0.15S accuracy
  • Up to 200kV BIL

VT’S

  • Single and dual bushing
  • Fusing available
  • CSA and Measurement Canada Approved
  • Up to 200kV BIL
OCF36
VE9

Outdoor – Stand Alone or Assembled

CT’S

  • Rugged and Compact
  • Measurement Canada approved to 0.15S accuracy
  • Up to 250kV BIL

VT’S

  • Single and dual bushing
  • Measurement Canada approved
  • Up to 350kV BIL

Design and Manufacturing

SADTEM quality instrument transformers

SADTEM’s commitment to excellence is evident in every step of their design and manufacturing process. Utilizing advanced technology and high-quality materials, the company produces medium voltage transformers that set the standard for reliability and performance. Their portfolio includes smart transformers and dry type units, each designed to maximize uptime and minimize maintenance requirements for customers worldwide.

The versatility of SADTEM’s medium voltage transformers allows for seamless integration into single phase and three phase systems, suitable for both indoor and outdoor use. Every product is manufactured in strict accordance with international standards, including CSA, IEEE and NFPA, ensuring accurate measurement and comprehensive protection in even the most demanding environments.

SADTEM quality instrument transformers
SADTEM quality instrument transformers

SADTEM’s manufacturing process is centered on delivering products that are not only efficient and safe but also tailored to the specific needs of each customer. The company offers detailed information and responsive support throughout the design and manufacturing journey, including the ability to request quotes and customize products to fit unique system requirements. With a focus on innovation and customer satisfaction, SADTEM continues to set the benchmark for quality in the medium voltage transformer industry.

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