Testing an arc detecting system
AssigneeABB Schweiz AG
InventorsJan-Peter Antin, Mats Åslund, Emma Thelin, Johnnie Blom
Life of this patent
Estimating the term…
Abstract
A testing arrangement is provided for an arc detecting system that includes at least one optical detector at a piece of electric equipment, where the testing arrangement includes at least one light source and a testing unit, where the testing unit is configured to control the light source to emit a test light to the optical detector with steps of increasing luminance starting from a minimum test level and continuing towards a maximum test level, investigate if the optical detector detects the emitted test light and determine that the arc detecting system is operational if the optical detector is able to detect the test light at any of the used test levels.
Claims17
A testing arrangement for an arc detecting system comprising at least one optical detector at a piece of electric equipment, the testing arrangement having at least one light source and a testing unit, said testing unit being configured to:
- control the at least one light source to emit a test light to the optical detector with steps of increasing luminance starting from a minimum test level and continuing towards a maximum test level, wherein the test light of each test level is continuous and each test level is generated through controlling the at least one light source using a corresponding sequence of pulses, each sequence of pulses causing the at least one light source to emit light at a corresponding test level;
- investigate if the optical detector detects the emitted test light;
- and
- determine that the arc detecting system is operational if the optical detector is able to detect the test light at any of the used test levels.
A method of testing an arc detecting system comprising at least one optical detector at a piece of electric equipment, the method being carried out by a testing unit of a testing arrangement and including:
- controlling a light source to emit a test light to the optical detector with steps of increasing luminance starting from a minimum test level and continuing towards a maximum test level, wherein the test light of each test level is continuous and each test level is generated through controlling the light source using a corresponding sequence of pulses, each sequence of pulses causing the light source to emit light at a corresponding test level;
- investigating if the optical detector detects the emitted test light;
- and
- determining that the arc detecting system is operational if the optical detector is able to detect the test light at any of the used test levels.
A computer program product for testing an arc detecting system which includes at least one optical detector at a piece of electric equipment, the computer program product comprising a non-transitory data carrier with computer program code which when run by a processor implements a testing unit configured to;
- control a light source to emit a test light to the optical detector with steps of increasing luminance starting from a minimum test level and continuing towards a maximum test level, wherein the test light of each test level is continuous and each test level is generated through controlling the light source using a corresponding sequence of pulses, each sequence of pulses causing the light source to emit light at a corresponding test level;
- investigate if the optical detector detects the emitted test light;
- and
- determine that the arc detecting system is operational if the optical detector is able to detect the test light at any of the used test levels.
Dependencies are inferred from the claim text.