Training

DTM Instruments, LLC is pleased to offer training sessions at your location. The training consists of initial class-room lessons and subsequent practical instruction. We tailor each training course to your particular requirements and applications. Question-and-answer sessions as well as hands-on instruction are an important part of each DTM Instruments, LLC’s training course.

We offer training for the following topics:

Partial Discharge (PD) Introduction

  • Physical phenomena of the partial discharge process
  • Different types of PD and their distinguishing features
  • PD measuring equipment and test setup
  • Calibrating the PD test circuit
  • Recognizing and mitigating PD test interference

Partial Discharge test of Power Cables

  • Test Setup and Calibration
  • Maximizing sensitivity and minimizing interference
  • Preventing test preparation problems
  • Evaluation of test results
  • Locating PD inside the cable and recognizing termination problems

Partial Discharge test of Power Transformers

  • Test Setup and Calibration
  • Radio Influence Voltage (RIV) tests and comparison with PD
  • Evaluation of test results
  • Recognizing PD types (PD fingerprinting) and devising mitigation strategies

Lightning Impulse (LI/BIL) testing

  • Test Setup and Safety
  • Introduction to the Marx generator circuit
  • Adjustments to achieve the required test parameters
  • Application of the Glaninger circuit (if requested)
  • Chopped impulse test
  • Operation of the impulse recorder
  • Evaluation of test results
  • Reducing interference, overshoot and oscillations by optimizing the test layout and grounding

C/tanDelta measurements

  • Basics of the C/tanDelta measurement
  • Frequency and voltage dependencies
  • Proper guarding of the test sample
  • Evaluation of test results