Reducing unscheduled plant maintenance delays; field test of a new method to predict electric motor failure

2002 ◽  
Author(s):  
G.T. Homce ◽  
J.R. Thalimer
Keyword(s):  
Field Test ◽  
Electric Motor ◽  
New Method ◽  
Plant Maintenance ◽  
Motor Failure

Determination of Deflection of the Vertical by the Astrogeodetic Difference Method

1982 ◽  
Vol 36 (2) ◽  
pp. 183-190
Author(s):  
W. F. Teskey
Keyword(s):  
Field Test ◽  
Difference Method ◽  
Systematic Errors ◽  
Cost Estimate ◽  
New Method ◽  
Test Results ◽  
Deflection Of The Vertical ◽  
Potential Applications

In certain survey applications the effect of deflection of the vertical cannot be ignored without producing large systematic errors. To avoid this problem some method of determining deflection, or change in deflection, must be used. A new method to determine change in deflection, the astrogeodetic difference method, is described. Field test results confirming the accuracy of the method are given. A cost estimate is made and potential applications are briefly discussed.

242. A rapid phosphatase test: (a) Adaptation of Scharer's modification to pasteurizing conditions in Great Britain; (b) A study of factors influencing the reliability of the test

1939 ◽  
Vol 10 (3) ◽  
pp. 485-497 ◽  
Author(s):  
R. Aschaffenburg ◽  
F. K. Neave
Keyword(s):  
Heat Treatment ◽  
Great Britain ◽  
Field Test ◽  
Small Groups ◽  
Enzyme Concentration ◽  
New Method ◽  
Pasteurized Milk ◽  
Stage Of Lactation ◽  
Factors Influencing ◽  
Before And After

By adapting Scharer's “10min. field test” to British conditions of pasteurization, an accurate phosphatase test has been evolved requiring less than 1½ hr. for completion. The method is described in detail.A small percentage of anomalies was detected when applying the new method to the examination of pasteurized samples bulked from small quantities of milk (less than 100 gallons). This led to a study of several factors thought to be the likely cause of such anomalous results.No correlation was found between the phosphatase surviving heat treatment and the stage of lactation when milk from individual cows and from small groups of animals was tested, with the possible exception of the early stages of lactation when the enzyme concentration before and after heating was frequently found to be low.It was observed that pasteurized milk from animals suffering from mastitis tends to give abnormally high results of the phosphatase test. The amount of residual phosphatase is subject to considerable fluctuation.

scholarly journals Results of performance tests of an experimental class H insulation system for locomotive traction motors and its monitoring using the mobile diagnostics means

2021 ◽  
Vol 2021 (4) ◽  
pp. 35-46
Author(s):  
Denis I. PROKHOR ◽  
Keyword(s):  
Electric Motor ◽  
Practical Importance ◽  
Performance Tests ◽  
Electric Motors ◽  
Diesel Locomotive ◽  
Insulation System ◽  
Traction Motors ◽  
Definition Of ◽  
Traction Electric Motor ◽  
Motor Failure

Objective: To perform traction electric motor performance tests with an experimental class H heat resistance insulation system. Methods: An experimental set of traction electric motors was manufactured at the Voronezh Diesel Locomotive Repair Plant to be compared with a motor of class F insulation. Results: The performance indicators of controlled locomotives have been summarized. Explanations and definition of additional insulation parameters and an example of their use in case of traction electric motor failure due to damage to controlled locomotives have been given. Practical importance: The proposed methodology for predictive diagnostics of traction electric motors performance can be used in service locomotive depots.

A new Approach for surveying the axis of cylindrical pipes using a reflectorless total station

2021 ◽  
Vol 15 (2) ◽  
pp. 135-142
Author(s):  
Y. A. Faried
Keyword(s):  
Field Test ◽  
Real Data ◽  
New Method ◽  
Graphical Solution ◽  
New Approach ◽  
Total Station ◽  
Cable Stayed Bridge

Abstract To survey the pipe’s axis used in the installation of the cable-stayed bridge, a reflectorless total station and a proposed surveying observation technique were used. The approach includes a new method for observation and a graphical solution for the pipe’s axis determination. The technique shown in this paper can be applied for vertical and semi-vertical cylindrical pipes. A field test with real data and results is also presented.

Lateral load tests in clay using inflatable air jacks

1981 ◽  
Vol 18 (2) ◽  
pp. 316-321
Author(s):  
Lars Olsson
Keyword(s):  
Field Test ◽  
Soft Clay ◽  
Earth Pressure ◽  
Lateral Load ◽  
New Method ◽  
Load Tests

A new method is described by which in situ lateral load tests in soft clay can be carried out. The method uses large, soft, flat jacks which are pushed down into the soil and inflated by air to the desired pressure. The system has been used to field-test total earth pressure cells.

Selective Sampling and Orientation of Non-Homogeneous Tissues

1968 ◽  
Vol 26 ◽  
pp. 98-99
Author(s):  
C. C. Clawson ◽  
L. W. Anderson ◽  
R. A. Good
Keyword(s):  
Electron Microscopy ◽  
Electron Microscope ◽  
Light Microscopy ◽  
Random Sampling ◽  
New Method ◽  
Microscope Examination ◽  
Small Areas ◽  
Selective Sampling ◽  
Large Numbers ◽  
Specific Orientation

Investigations which require electron microscope examination of a few specific areas of non-homogeneous tissues make random sampling of small blocks an inefficient and unrewarding procedure. Therefore, several investigators have devised methods which allow obtaining sample blocks for electron microscopy from region of tissue previously identified by light microscopy of present here techniques which make possible: 1) sampling tissue for electron microscopy from selected areas previously identified by light microscopy of relatively large pieces of tissue; 2) dehydration and embedding large numbers of individually identified blocks while keeping each one separate; 3) a new method of maintaining specific orientation of blocks during embedding; 4) special light microscopic staining or fluorescent procedures and electron microscopy on immediately adjacent small areas of tissue.

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