Absolutely fascinating. I CAN work with electrical equipment, do simple house electrical work (install ceiling fans, GFCIs, etc), but I could NEVER have been an electrician; my hat is off to you guys/gals that do it.
The bean-counters who forced this needlessly dangerous substation design to be implemented just to save the cost of normal disconnector switches should go to jail for reckless endangerment. Also the linemen not wearing safety glasses are insanely stupid.
This is all fascinating but... why on earth would anyone build a 132kv substation with no isolators? This kind of live link removal work, while interesting to watch, is pretty dangerous and also time consuming compared to just opening an isolator/switch.
At some point you need to work on the isolator itself, which is what's happening here. Presumably this is a part of the system where there's no redundancy and they can't just shut off further down the line. The safest option would be to isolate that, but if it means cutting off supplies to a large area then I guess uptime comes first and they just make the job itself as safe as possible.
Does anyone know why there is an arc if the circuit breaker has the other end of the link isolated from the bus bar? I'm having trouble figuring out where that power is going.
Hi Because the circuit breaker is open the connection to the transformer side is dead and there is no power flowing However on the line side it is live up to the open circuit breaker That arc drawn is more breaking busbar volts than power I.e the charging current to make it live which is minimal amps
It's just charging current. You always get some arcing on high voltage disconnect even when there is no electrical load on the other end. If there was you would get a 15ft long snaking lightening bolt that you wouldn't want to be anywhere near!
I’m am super interested!!, but man you lines guys n those voltages/ power have me pissing me self just watching... Lol no near miss stories in your lunch rooms😬
Why not just install 4 conventional discinectors. Then the complete substation could be serviced with no problem the price for this would be small compared to the risk there are involved in live work.
@@alexandresabourin9471 in general DCB’ is a stupid design. I have not analyzed the SLD but you need to be able to Isolate all component in a substation to be able to perform service one these. The price to do it correct is limited and it greatly minimize the risk for the personal.
Absolutely fascinating. I CAN work with electrical equipment, do simple house electrical work (install ceiling fans, GFCIs, etc), but I could NEVER have been an electrician; my hat is off to you guys/gals that do it.
3:52 made me jump!
3:52 the beast in it's visible form.
thanks for the video, great job
The bean-counters who forced this needlessly dangerous substation design to be implemented just to save the cost of normal disconnector switches should go to jail for reckless endangerment.
Also the linemen not wearing safety glasses are insanely stupid.
"Also the linemen not wearing safety glasses are insanely stupid." True!
Yeah... I work in substations. And they cut costs but never like this! This is insane.
This is all fascinating but... why on earth would anyone build a 132kv substation with no isolators?
This kind of live link removal work, while interesting to watch, is pretty dangerous and also time consuming compared to just opening an isolator/switch.
At some point you need to work on the isolator itself, which is what's happening here. Presumably this is a part of the system where there's no redundancy and they can't just shut off further down the line. The safest option would be to isolate that, but if it means cutting off supplies to a large area then I guess uptime comes first and they just make the job itself as safe as possible.
This is so cool lol
Very scary!
Like a dentist 6 feet away !,
Does anyone know why there is an arc if the circuit breaker has the other end of the link isolated from the bus bar? I'm having trouble figuring out where that power is going.
2:31 The bus bars are grounded before the linkage is disconnected.
Hi
Because the circuit breaker is open the connection to the transformer side is dead and there is no power flowing
However on the line side it is live up to the open circuit breaker
That arc drawn is more breaking busbar volts than power
I.e the charging current to make it live which is minimal amps
@@osmanali123 I assume capacitance, the way you can get arcs to anything, even something floating, if the voltage is sufficient.
It's just charging current. You always get some arcing on high voltage disconnect even when there is no electrical load on the other end. If there was you would get a 15ft long snaking lightening bolt that you wouldn't want to be anywhere near!
welcome to high voltage
Safety glasses?!
...distort visibility. Otherwise they keep flying objects out of your eyes.
هذا العمل خطيبر جداً
I’m am super interested!!, but man you lines guys n those voltages/ power have me pissing me self just watching...
Lol no near miss stories in your lunch rooms😬
Although they know exactly what they are doing, I'm pretty sure their balls are made out of steel.
I'd be afraid to get within 30 feet of that thing!
Why not just install 4 conventional discinectors. Then the complete substation could be serviced with no problem the price for this would be small compared to the risk there are involved in live work.
the guy who got the bonus for the cost savings is not the guy taking the risk of the hot work.
Now how do you do a maintenance on those disconnector...
@@alexandresabourin9471 you unload & open the next disconnectors on either side.
@@alexandresabourin9471 in general DCB’ is a stupid design. I have not analyzed the SLD but you need to be able to Isolate all component in a substation to be able to perform service one these. The price to do it correct is limited and it greatly minimize the risk for the personal.
Oh my gosh Mr Voiceover, was too much vocal fry!
No thank you