When Quality Transformer and Electronics (QT&E) first opened its doors in 1964, the world’s electrical landscape was completely different than it is today. Being located in the heart of Silicon Valley, this was where, and still is, where many of our customers were located and manufacturing was done on a larger scale in this area.

Today, we still work with many of the same companies, as well as many new ones, designing new products and parts for systems of ever increasing complexity and with specific needs for power quality and continuing needs for product quality and reliability.

We have continued to grow with our customers’ needs, anticipating their new technical requirements and production volumes. We continue adding equipment, practicing lean manufacturing, hiring new employees and cross-training to keep costs down. Most importantly, we perform research and development on new products such as Harmonic Mitigating Transformers, Power Conditioners, Noise Cut Transformers and Assemblies, Zigzag Transformers to name a few.

Our commitment to anticipating our customers’ needs and developing new products to meet these requirements means we are building products that are often ahead of IEEE and other standards. However, we maintain our dedication to producing high quality and reliable products. Our ISO Certification and ability to certify our products to applicable UL standards, CE, CSA and CUS means our customers know that each part delivered to them meets critical safety and quality standards required in their industries.

As part of our dedication to meeting these requirements, our quality processes include:

  • Incoming inspection on all custom ordered parts to verify they were fabricated to specifications and are free of damage,
  • Incoming inspection on all off-the-shelf parts to ensure they are correct to each product as specified by the engineering staff,
  • Inspection of all parts fabricated in-house to ensure they meet the drawing prints and are free of damage and have been properly treated to eliminate sharp spots that could cause damage to the products in which they will be used,
  • Lot travelers and drawing packages for manufacturing that accompany each production release,
  • Inspection and/or test at each critical stage of manufacture for 100% of units,
  • Full test of units before vacuum impregnation and termination for 100% of units, and
  • Final test of units before being marked approved by Quality Control and before shipment for 100% of units

We have also continued to add to our test equipment and capabilities over time and this equipment includes:

  • Variable 480V, 3-phase 200A service,
  • Short circuit testing of up to 1000A,
  • 50Hz and 400Hz 3-phase generators,
  • Dielectric withstand testing, including corona measurement, can be performed at levels up to 100kVAC,
  • Thermal shock chamber,
  • Full load testing up to 400kVA,
  • Resistant load banks for performing heat run testing, and
  • Custom designed oil processing system for units required to operate in oil.
QTE campus

Mission Statement

"Quality Transformer and Electronics believes that individuals create quality.
"It is the goal of every employee to supply products that meet all customer expectations and internal requirements, on time."

QT&E is committed to providing our customers with the best possible electro-magnetic products. Pulling from over 150 years of combined engineering experience, we have the practices and knowledge to bring our customers the highest quality products. Our commitment to our customers is transparent in our ability to partner and consult at every stage of the design process.

At QT&E, we believe that employees create quality and value. All of our transformers are built by hand by skilled craftsmen. Our employees are highly trained and highly knowledgeable, and are given the ability to gain new skills further developing their capacity to contribute to the company. Their expertise is the foundation of this company, and QT&E supports their development and growth in every way possible.