Electronic Ballasts — Important Components in Photovoltaically Powered Lighting Systems

Pfanner, N.; Roth, W.; Gerhold, V.; Vaaßen, W.

doi:10.1007/978-94-011-3622-8_267

Cited by 3 publications

(2 citation statements)

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“…The last is scarcely considered in the specialist literature, 21,31,37,38 but we decided to consider it because we have observed that very often the real power values consumed by the ballast and delivered to the tube are well below the rated values (the ratio of real to rated power to the tube is below 60% in 43% of the tested lamps). Resort to this trickery to increase the lifetime of the lamps (softening the working conditions of ballast components and reducing the price) seems to be widespread in the current market, and is a clear symptom of the lack of effective quality assurance procedures.…”

Section: Reliability Under Normal Operation Conditionsmentioning

confidence: 99%

“…For example, crest factor values as high as 3 may be allowed, 25 or they may be limited to 2 elsewhere, 16 or even to 1Á7 in another recommendation. 21 This rather soft' situation is being compounded by the lack of effective testing in current procurement procedures. The available literature 26,27 suggests that, despite some admirable attempts, 14,25,28 independent testing is far from being a widespread practice today.…”

Section: Lamp Performance Standards and Testingmentioning

confidence: 99%

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Testing of fluorescent DC lamps for Solar Home Systems

Narvarte

Muñoz

Lorenzo

2001

Progress in Photovoltaics

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With the advent of the Universal Technical Standard for Solar Home Systems, procedures to test the compliance of SHS¯uorescent lamps with the standard have been developed. De®nition of the laboratory testing procedures is a necessary step in any lamp quality assurance procedure. Particular attention has been paid to test simplicity and to affordability, in order to facilitate local application of the testing procedures, for example by the organisations which carry out electri®cation programmes. The set of test procedures has been applied to a representative collection of 42 lamps from many different countries, directly acquired in the current photovoltaic rural electri®cation market. Tests apply to: lamp resistance under normal operating conditions; lamp reliability under extreme conditions; under abnormal conditions; and lamp luminosity. Results are discussed and some recommendations for updating the relevant standard are given. The selected technical standard, together with the proposed testing procedures, form the basis of a complete quality assurance tool that can be applied locally in normal electrical laboratories. Full testing of a lamp requires less than one month, which is very reasonable on the context of quality assurance programmes.

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Section: Reliability Under Normal Operation Conditionsmentioning

confidence: 99%

Section: Lamp Performance Standards and Testingmentioning

confidence: 99%