Bi monthly blackstart we do a mains fail simulation to check operation of generators and switchgear From power failure to total load on quite quick how many seconds do you count
On the other hand, engineers prepare to be horrified by the large scale misuse of sounds because the producer has no idea how hydraulics or reduction gearboxes work.
Let me see if I have this right... 0:15 - Transfer switches/vacuum contactors begin to open on grid side and the first of the generators start up 0:17 - AC power for this area is lost. Critical and Life Safety power is supplied by battery/UPS elsewhere? 0:19 - Emergency battery lights switch on 0:26 - Generators are up to speed and begin to synchronize. Their circuit breakers close onto bus. 0:43 - Critical, Life Safety, and Equipment branch main breakers begin to close onto bus, and AC power is restored. Am I close?
The first VCB that opens is the CHP, there is a 3 second delay to allow for brown outs. then all VCB,s and ACB,s open. All gensets start and the first to volts and frequency takes the lead, set 1&2 sync, 3&4 sync then the pairs sync. Whilst this is happening load is being transferred to the gens and P1 loads are on in a little over 12s, the site is N+1 in around 25 secs. The system was designed by George Hobbins from Dieselec Thistle in Glasgow. There is a total of 1Mva of UPS on site for life critical systems and ICT. Very impressive system. 5Mva of HV generation. Sadly one of the main engineers that worked on the network passed away last year, massive amount of know how and a great loss to the industry.
I worked as part of a large general hospital Engineers department (now estates😞) our twin set one had to work full on load for eight days when Vandals through a bike into a large sub station nearby worked extremely well, as a precaution our laundry had to work later into the evening to help free up some of the heavy day time loading, great post many thanks
Mike Jones we could support the full site load with N+1. If we lost 2 sets we would load shed non critical systems like the laundry. Coffee machine was a critical load item
@@lanswipe Or also quite often with extremely dangerous machinery/power lines: shift the blame to whoever trespassed. If they don't have any locks, the victims or relatives can claim they didn't know they weren't supposed to stick their hands there. Now, when there's a lock, it's a clear "don't come here" sign, you have to intentionally trespass. These locks protect the person more than the equipment quite often, in this case tho where it's some life critical gear more like both.
Lock in the configuration, It's all set to AUTO controlled from a single PLC. If someone switched the override manually it would mess up the sequence or cause one of the circuits to trip out entirely.
+Brian Kerr yes you did, 1.4Mw as a base load when 6 ACB,s did not open, just as well gen set 1&2 synchronised within 5 seconds of the breakers opening
![Lp. Последняя Реальность #107 РОДНОЙ ДОМ [Финал] • Майнкрафт](http://i.ytimg.com/vi/IK3QKzKUlHM/mqdefault.jpg)
Its cool how every time a switch flips the generator has more load.
Not really sure why I find this video so fascinating. Maybe it's how perfectly each component of the emergency power system works? Great video!
All these sounds are horror movie producers dream.
MrManuel1329 yes!
On the other hand, engineers prepare to be horrified by the large scale misuse of sounds because the producer has no idea how hydraulics or reduction gearboxes work.
Nice switchboard, I think that was a very smooth transfer from grid to generators.
RODALCO2007 the return is seamless.
@@bobbj77 Yes the switch boards operate in milliseconds not secs.
in the US in critical situations mainly hospitals some data centers,ours have to start and take full load in 10 seconds or less
Outcome: Noone was hurt, three died.
Great work!
No one*
Let me see if I have this right...
0:15 - Transfer switches/vacuum contactors begin to open on grid side and the first of the generators start up
0:17 - AC power for this area is lost. Critical and Life Safety power is supplied by battery/UPS elsewhere?
0:19 - Emergency battery lights switch on
0:26 - Generators are up to speed and begin to synchronize. Their circuit breakers close onto bus.
0:43 - Critical, Life Safety, and Equipment branch main breakers begin to close onto bus, and AC power is restored.
Am I close?
The first VCB that opens is the CHP, there is a 3 second delay to allow for brown outs. then all VCB,s and ACB,s open. All gensets start and the first to volts and frequency takes the lead, set 1&2 sync, 3&4 sync then the pairs sync. Whilst this is happening load is being transferred to the gens and P1 loads are on in a little over 12s, the site is N+1 in around 25 secs. The system was designed by George Hobbins from Dieselec Thistle in Glasgow. There is a total of 1Mva of UPS on site for life critical systems and ICT. Very impressive system. 5Mva of HV generation. Sadly one of the main engineers that worked on the network passed away last year, massive amount of know how and a great loss to the industry.
ps, yes you are close :-)
@@bobbj77👌 Absolutely First Class
Neat how the switchgear works to transfer to the generators.
the big boys doing it just now!!! Martin Mcguinness is fitting my new consumer unit . he says hiya
+Brian Kerr Has he shown you the VIC video?
It would be really cool to see this from the outside of the building, showing each section energise one by one...
Are the lights that burn without power from the generator like battery Lamps?
How many cycles can those breakers take before they need to be replaced?
which one Bob if it's the subtitle one what happened to it
cool did you ever had somthing fail big time like realy fubar
Bob speaking to others who have been here longer you apparently spilt a pint in it fpmsl
+Brian Kerr not a full one :-)
I worked as part of a large general hospital Engineers department (now estates😞) our twin set one had to work full on load for eight days when Vandals through a bike into a large sub station nearby worked extremely well, as a precaution our laundry had to work later into the evening to help free up some of the heavy day time loading, great post many thanks
Mike Jones we could support the full site load with N+1. If we lost 2 sets we would load shed non critical systems like the laundry. Coffee machine was a critical load item
I can only go with what the boys tell me compared with other sites. still like your comment about not a full wan fpmsl
+Brian Kerr it is a quick SCADA for restoration, you guys have it easy, here is how the big boys do it.
You can hear those massive engines in the background... CATs?
Sounds like it.
FG Wilson Perkins 4312, 1.25 MVA @11KV
Why so many things with padlocks?
keep inquisitive fingers out of places they shouldn't be
@@lanswipe Or also quite often with extremely dangerous machinery/power lines: shift the blame to whoever trespassed. If they don't have any locks, the victims or relatives can claim they didn't know they weren't supposed to stick their hands there. Now, when there's a lock, it's a clear "don't come here" sign, you have to intentionally trespass. These locks protect the person more than the equipment quite often, in this case tho where it's some life critical gear more like both.
Lock in the configuration, It's all set to AUTO controlled from a single PLC. If someone switched the override manually it would mess up the sequence or cause one of the circuits to trip out entirely.
@@FrozenHaxor Dual PLC redundant parallel system, SOP in place for PLC failure
@@bobbj77 Even better 👍
nah never especially no this shit mate
+Brian Kerr yes you did, 1.4Mw as a base load when 6 ACB,s did not open, just as well gen set 1&2 synchronised within 5 seconds of the breakers opening