Motor operated disconnects in new substations

[mbrooke]

Is there any advantage to having them? Do you guys still have them in new construction? Not much literature on the subject that I can find.

 

[Lifetimelearner]

I think most of the benefits are taking user error out of switching and safety.
I know personally I feel much safer pressing a button in a substation and watching the switch open rather than standing under the switch and doing it manually.

This all depends on the site and power conditions of course but most utilities or bigger power production places I have been to use motorized on anything considered medium to high voltage (very generic statement).

 

[mbrooke]

I think most of the benefits are taking user error out of switching and safety.
I know personally I feel much safer pressing a button in a substation and watching the switch open rather than standing under the switch and doing it manually.

This all depends on the site and power conditions of course but most utilities or bigger power production places I have been to use motorized on anything considered medium to high voltage (very generic statement).

Thank you for your input. That would make sense, especially when breaking transformer magnetizing current or switching between 2 bus bars while under load. I know the SEL400 series relays make this very friendly.

 

[rian0201]

we used motorized disconnects when i was working in the utility for the safety of personnel, in my opinion, we dont think much of cost, since the owner will just pass on the cost to customers.. hihi..

i have also pole mounted load break switches which are remotely controlled in substations, these were mounted via structures..


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[mbrooke]

we used motorized disconnects when i was working in the utility for the safety of personnel, in my opinion, we dont think much of cost, since the owner will just pass on the cost to customers.. hihi..

i have also pole mounted load break switches which are remotely controlled in substations, these were mounted via structures..


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Safety is worth the cost, and its the best argument. What company made your motors operators? Heard to avoid Areva, but Southern states comes top notch.

 

[mbrooke]

we used motorized disconnects when i was working in the utility for the safety of personnel, in my opinion, we dont think much of cost, since the owner will just pass on the cost to customers.. hihi..

i have also pole mounted load break switches which are remotely controlled in substations, these were mounted via structures..


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Not to go to off topic - but 1:56 and 5:52 prove why its best not to be near one of these critters:


https://www.youtube.com/watch?v=sr42AGaIayU

 

[rian0201]

we used hapam...


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[mbrooke]

we used hapam...


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Ahhh,ok, will check them out :thumbsup: