Has anyone heard about the term "smart diode" used in earth continuity relays?

What is the difference between a smart diode and a normal diode?

 

Could you throw us a bone and provide a link of some kind to some place where these are mentioned?

 

Could be referring to pilot core protection, such as used in mining operations to respond to faults or damage in trailing power cables.

 

Yes, they are used in mining sector to check earth continuity. The usual idea is to check earth continuity (look for a diode or smart diode). You send a positive pulse and look for a low voltage because the diode is forward biased and then you send the negative pulse and see open circuit (as the diode is reverse biased). Then you transmit power.
I know this much but can anyone give me any design/circuit for this smart diode stuff used to check earth continuity for equipments used in mining sector.

 

A "Smart Diode" is one that can log on to the internet.

Oh hang on, that's an "iDiode".

 

If a diode is a poem about death, then a smart diode must be a smart poem about death -- right?

 

 

You can either get angry or get smart.

You were already asked by WBahn to provide some link to where such a smart diode was specifically mentioned.

You didn't respond. It would help if you were able to provide that information or link. Then you won't have to feel you have been teased.

 

Here is what I could refer to:

http://control.visionscape.com.au/SiteFiles/bramcocomau/A01047 - IC1 manual Bramco Mar 07.pdf

 

The relay data makes no mention of a smart diode. In fact on page 7 the data sheet suggests using a 1N4007 1000V 1A diode. That's an ordinary commonly used silicon diode.

 

Has anyone heard about the term "smart diode" used in earth continuity relays?

What is the difference between a smart diode and a normal diode?

It appears that TI produces a "smart diode" for PV panels.
http://www.ti.com/lit/ds/snvs903/snvs903.pdf

 

It appears that TI produces a "smart diode" for PV panels.
http://www.ti.com/lit/ds/snvs903/snvs903.pdf

No doubt of interest but probably not relevant to the OP's question as they have already indicated the issue is with mining cable pilot wire protection schemes.