Condition Monitoring at Norske Skog

Principles of Insulation Testing Cadick Corporation  Introduction Probably 80% of all testing performed in electrical power systems is related to the verification of insulation quality. This Cadick Corporation Technical Bulletin briefly describes the fundamental concepts of insulation testing including – insulation behavior, types of tests, and some test procedures. For more detailed information, refer to the bibliography at the end...

Top Tips for Selecting Pressure Measurement Transmitters www.engineerlive.com The first stage is whether to opt for a transducer or a transmitter. Although the terms are often confused, there are several differences between transducer and transmitter devices. A transducer creates a low-level electronic signal in response to changes in applied or differential pressure. As with transmitters, transducers feature an internal sensor...

Gearbox Diagnostics Fault Detection Walter Bartelmus  Abstract The paper deals with the method of gearbox diagnostics fault detection, and shows that using: design, production technology, operational, change of condition (DPTOCC) factors analysis leads to inference diagnostic information. In the paper is a review of the current possibilities for using mathematical modelling and computer simulation for investigating the dynamic properties of...

What is Vibration? - Part 3 DLI Engineering This is a 3 part series, click to view each part: 1 : 2 : 3 Logarithmic Frequency Scaling So far, the only type of frequency analysis discussed has been on a linear frequency scale, i.e., the frequency axis is set out in a linear fashion. This is suitable for frequency analysis with a frequency resolution that...

What is Vibration? - Part 2 DLI Engineering This is a 3 part series, click to view each part: 1 : 2 : 3 Energy and Power Considerations Energy is required to produce vibration and in the case of machine vibration, this energy comes from the source of power to the machine. This energy source can be the AC power line, an internal combustion engine,...

What is Vibration? - Part 1 DLI Engineering This is a 3 part series, click to view each part: 1 : 2 : 3 In its simplest form, vibration can be considered to be the oscillation or repetitive motion of an object around an equilibrium position. The equilibrium position is the position the object will attain when the force acting...

Why Record? Infrared Video Stockton Infrared Thermographic Services, Inc. ABSTRACT The days of the hand written infrared report are over. With the speed, portability, availability and relatively inexpensive costs of today's infrared imagers, computers and image processing systems, the infrared thermographer can collect, process and produce professional inspection reports with greater ease than just a few years ago. Due to...