What kind of sensor is best for detecting fault current on a power line?

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For a fault locating system on high voltage and medium voltage power lines, the discussion focuses on selecting an appropriate sensor to detect fault current, with options like Hall effect sensors and clip-on current transformers being considered. The project aims to mount a device on live conductors that can transmit fault information via radio to a pole-mounted unit, which will then send SMS alerts through a GSM modem. Participants express appreciation for shared knowledge and practical advice, emphasizing the importance of collaboration in learning. The conversation highlights the need for suitable radio devices and methods to convert radio signals into SMS. Overall, the thread fosters a supportive environment for technical discussion and problem-solving.
maheel
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Hi,
I'm working on a project to make a fault locating system on HV and MV (11kv to 220kv, 33kv first).
I'm try to make a device that can be directly mounted to the line (Mount on live bare conductors) to detect the fault in the power line and send a radio signal to devise mounted on the pole. Then the device mounted in the pole should send the signal (SMS) to mobile or a PC through GSM modem.
I'm interested in Electronic but not a expert. These are the my tasks,

1.Find a sensor to detect the fault (fault current),
What kind of sensor that can i used to detect fault current in the line? (hall sensor, Clip on type CTs...Etc)

2.suitable radio devices to send the radio signal to pole mounted unit?
3.how to convert radio signal to SMS?

any advice would be really appreciate...

Thanks...
Maheel
 
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Thank you Mr.Jim Hardy
 
That Jim Hardy - he's a walking encyclopaedia. Where would we be without him? :approve:
 
sophiecentaur said:
That Jim Hardy - he's a walking encyclopaedia. Where would we be without him? :approve:

The kind of guy a person wishes they had for a neighbor.
 
You guys are way too kind.


That my academic weakness is tolerated here says a lot of good about you folks.
If i can occasionally help with practical side of things , well, maybe it'll help somebody struggle up the learning curve as we all did.
Mathematician GH Hardy said to effect" There are students who simply cannot grasp higher mathematics. They should not be dismissed because they can contribute at a practical level."

Thanks guys, for letting me play here. When i blunder please correct me.

old jim
 
sophiecentaur said:
That Jim Hardy - he's a walking encyclopaedia. Where would we be without him? :approve:

Averagesupernova said:
The kind of guy a person wishes they had for a neighbor.

Ditto.

jim hardy said:
You guys are way too kind.

...

Thanks guys, for letting me play here.

Your play is teaching me. Don't stop. :thumbs:
 

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