Good day Power Forum, my lovely Family. Another day With another Problem.
I've recently visited an Installation which had a problem of Power surge of  above 400VAC (picture attached) but only on certain plugs .The SPD specifications are as follows-Imax 10kA -IN 5kA Up1.5kV.- Uc 275V, and Earth leakage with no Overload protection. Yes the inverter is being supplied before Earth leakage. Now the problem is after a period of about 10 minutes the earth leakage is tripping together with the Gyser Breaker but that doesn't affect The System. That E/L is only Supplying to the Stove And Gyser. And Also in what state does  Those indicators has to be always on?

What are the side effects of having Dc cables and AC cables in the same conduit?

Edited September 8, 20232 yr by VictorD

52 minutes ago, VictorD said:

Good day Power Forum, my lovely Family. Another day With another Problem.
I've recently visited an Installation which had a problem of Power surge of  above 400VAC (picture attached) but only on certain plugs .The SPD specifications are as follows-Imax 10kA -IN 5kA Up1.5kV.- Uc 275V, and Earth

54 minutes ago, VictorD said:

Power surge of  above 400VAC

leakage with no Overload protection. Yes the inverter is being supplied before Earth leakage. Now the problem is after a period of about 10 minutes the earth leakage is tripping together with the Gyser Breaker but that doesn't affect The System. That E/L is only Supplying to the Stove And Gyser. And Also in what state does  Those indicators has to be always on?

What are the side effects of having Dc cables and AC cables in the same conduit?

How did you measure the 400vac power surges.

Ac and Dc cables should not be in the same conduit you need to split them.

SPD indication should be green indicating good health Spd will not be "on" will be in a high state(open cutcuit) until a overvoltage surge happens where it will conduct(low state) until the wave subsidizes normall only last a few micro seconds.

The Geyser breaker is tripping on overcurrent and the EL on leakage current, inspect the geyser element.  You need to fit a 60amp double pole mcb before the EL on the incoming Eskom cable"point of supply"