1.0Electrical Riddlehttps://electrical-riddle.com/enElectrical Riddlehttps://electrical-riddle.com/en- Electrical Riddlerich600338<blockquote class="wp-embedded-content" data-secret="V9Ja1Pbwsu"><a href="https://electrical-riddle.com/en/forums/reply/1658/">Reply To: Protection Riddle No.42 – Spasmodic tripping on the RCD</a></blockquote><iframe sandbox="allow-scripts" security="restricted" src="https://electrical-riddle.com/en/forums/reply/1658/embed/#?secret=V9Ja1Pbwsu" width="600" height="338" title="“Reply To: Protection Riddle No.42 – Spasmodic tripping on the RCD” — Electrical Riddle" data-secret="V9Ja1Pbwsu" frameborder="0" marginwidth="0" marginheight="0" scrolling="no" class="wp-embedded-content"></iframe><script>
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I cannot understand your mean when you say about neutral to earth fault voltage equal to 348 volt, however my first guess about your problem is neutral wire cutting or disconnecting. Please note to below figure, when disconnection of neutral occurs in system, you face to phase voltage between neutral and earth via load impedance. … Read More »https://electrical-riddle.com/wp-content/uploads/2021/08/330368666_135.gif