#askLorandt

[@wgus]

Thank you for your very clear explanation.

[@mustafaakman1965]

Excellent and clear explanation

[@udhayakumara4033]

Can we use a GDT in series with the MOV to prevent leakage current

[@wuerthelektronik]

Hi Kumar, thanks for your request! You can put in parallel the GDT but not in series. It won't help to supress overvoltage in this way. To prevent leakage, you must choose the right varistor or TVS. Best regards, Würth Elektronik

[@JORJOOOOO]

In plug protectors, i think that they have varistor inside them. If you add one plug protector inside another plug protector, do you add more protection?

[@wuerthelektronik]

Hi J0RJ0, I know plug protectors only mechanical. If you use 2 varistors parallel, you don't have more protection.

[@gauravarya6419]

but if i put two different rating of MOVs in series, one mov has high and other has lower clamping voltage,,then during surge which MOV will clamp first...the one with lower or the one with higher clamping voltage?

[@wuerthelektronik]

In theory the one with lowest clamping but in reality the fastest one, the lowest capacity one.

[@stunewman8139]

@@wuerthelektronik If two identical MOVs are connected in series, will the operating (nominal) voltage double while the clamping voltage remains unchanged?

[@wuerthelektronik]

@@stunewman8139 those MOVs are not ideal components, so they have parasitics. In fact, 2 in series are operating on a double voltage, but this is no waranty, that it will clamp both in the same time or never. Regards, Lorandt

[@swedensy]

0:18 You never put varistors in serial.
I dont think he is an electronic engineer. Well it shows now that he is an Design Engineer.
I suggest you to listen folks who work with science and not design.

[@wuerthelektronik]

Hi Artjoms, this is exactly the reason why we make these videos, to explain why you shouldn't do such design mistakes. Regards, Lorandt