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
