Maintenance Archive

REF630 IED – reading existing configuration and settings

REF630 PLC is designed and produced by company ABB. This PLC exchanged older series PLC’s REF541/543/545. REF630 PLC is used mainly for protection of incoming cubicles, sectional cubicles, voltage transformers, feeders, capacitor banks and so on. This PLC is also used in automatic schemes: automatic transfer scheme (ATS), under frequency load shedding (UFLS) and so […]

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Analyser Chauvin Arnoux CA8335: 4.Trend mode

          In article no.3 „Analyser Chauvin Arnoux CA8335: 3. Inrush mode“ I‘ve described how to measure starting current of motor. However by using “inrush current” mode you can’t measure the whole time of starting motor. For this purpose more convenient is to use “trend mode”. By using “trend mode” you can also monitor parameters of […]

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Analyser Chauvin Arnoux CA8335: 3. Inrush mode

Inrush currents of motors, power transformer, capacitor banks can be measured using Chauvin Arnoux CA8335 analyser. In this article will be described measuring inrush current of motor. The same measuring principles fits to power transformer and capacitor bank. How to connect currents leads read article “Analyser Chauvin Arnoux CA8335 – 1. Transient mode” (particles 1 and 2). […]

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Analyser Chauvin Arnoux CA8335: 2. Measuring harmonics

Analyser Chauvin Arnoux C.A 8335 can measure harmonics of electrical network. In previous article was described how to measure transients in power grid by using Analyser Chauvin Arnoux C.A 8335.   The sequence of measuring harmonics: Powering of analyser. Connecting voltage and current leads. Setting of measurement scheme. Setting of measurement method. Setting of date […]

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Analyser Chauvin Arnoux CA8335: 1. Transient mode

Hello, again! I‘m going to write several articles about power grid analyser Chauvin Arnoux CA8335. As usual manufacturer‘s manuals are unpractical. Chauvin Arnoux CA 8335 is portable power grid analyser. Analyser is very convenient, you can easy connect it to PC. Manufacturer’s page: http://www.chauvin-arnoux.com/en/produit/c-a-8335.html     This analyser has several functions: Instantaneous measurements and vectorial […]

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