Strange powercut goings on
Discussion
Sat at home last night, power blinked off & back on again.
Quickly shut my PC down & left the UPS to look after the NAS & router.
Sat down to watch TV & it went out along with the soundbar, the 2 lamps dimmed but remained lit.
Nothing else worked spart from the boiler light was still lit.
Eventually the lamps went out for s bit before everything came back on.
What the hell happened? The lamps were plugged into sockets in the same room as the TV and sound bar which were also plugged into sockets.
Quickly shut my PC down & left the UPS to look after the NAS & router.
Sat down to watch TV & it went out along with the soundbar, the 2 lamps dimmed but remained lit.
Nothing else worked spart from the boiler light was still lit.
Eventually the lamps went out for s bit before everything came back on.
What the hell happened? The lamps were plugged into sockets in the same room as the TV and sound bar which were also plugged into sockets.
I have had this a lot in the Chilterns near High Wycombe. It damaged a TP Link mains extension device, necessitated a factory setting reset of my router, upset a PVR to the point that it had to be powered off for five minutes to restore it, and locked my outside lights on. This happens in sequences of a few over a week or so then stops for a while. It's the brevity that upsets the equipment so I've fitted a UPS to protect the router but it's a new system according to the UK Power Networks customer service. See here
We have been having these mini power cuts several time a day for weeks. I have raised a complaint to be told it’s normal.
They have killed my new PIR and we keep having to reprogram quite a few devices with clocks attached.
I have also had multiple teams meetings lose connection as a result The router always take s 5 mins to reconnect after a split second power failure.
They have killed my new PIR and we keep having to reprogram quite a few devices with clocks attached.
I have also had multiple teams meetings lose connection as a result The router always take s 5 mins to reconnect after a split second power failure.
Several thoughts and ideas in this thread, same forum.
https://www.pistonheads.com/gassing/topic.asp?h=0&...
https://www.pistonheads.com/gassing/topic.asp?h=0&...
LordHaveMurci said:
You re going to need to explain
Voltage sag = drop in voltage for a short period of time. More sensitive equipment may stop working but stuff without electronics can keep working just with lower power output. Hence kettle would keep running (just slower) or lights dim but router cuts out. UK incoming voltage should be 230v with a tolerance (217-254v ish). Basic offline UPS often kick in at 180v. colin79666 said:
LordHaveMurci said:
You re going to need to explain
Voltage sag = drop in voltage for a short period of time. More sensitive equipment may stop working but stuff without electronics can keep working just with lower power output. Hence kettle would keep running (just slower) or lights dim but router cuts out. UK incoming voltage should be 230v with a tolerance (217-254v ish). Basic offline UPS often kick in at 180v. LordHaveMurci said:
motco said:
The 'sag' here is complete - 0v for a few seconds. It's the very short duration that does the damage.
A 1st for me, I turned everything bar one light off just in case!I m not a youngster & we used to have regular powercuts, never experienced this before!
It sounds like you had whats known as single phasing
The main high voltage system be it overhead or underground runs on three phase at 11kv (11,000 volts) to local transformers if your in the uk Undergound cables normally go bang and the whole lot is offf
The transformers on poles or at ground mounted substations take in three phases at 11kv and give out 3 phases low voltage at 230volts to feed streets etc. or there abouts
If there is a fault somewhere espescially on overhead system , it could be quite far away from where you live , it can blow off or break a connection on one of the overhead line poles .
That leaves 2 lines connected but gives single phasing on the system ,only 2 lines connected not the usual 3
I had this about 2 years ago at home, when a fault blew a connection on a pole about a mile away , power off briefly , came back on , lights dim, tv worked , microwave turntable hardly turned .Instead of having 230v to the house we had about 180volts
It was a bird on a pole , shorted out one line to earth where it went to underground cable , the fault current at that point melted the connection.
I worked on the system for over 40 years and we had this problem many times in the area I worked
The main high voltage system be it overhead or underground runs on three phase at 11kv (11,000 volts) to local transformers if your in the uk Undergound cables normally go bang and the whole lot is offf
The transformers on poles or at ground mounted substations take in three phases at 11kv and give out 3 phases low voltage at 230volts to feed streets etc. or there abouts
If there is a fault somewhere espescially on overhead system , it could be quite far away from where you live , it can blow off or break a connection on one of the overhead line poles .
That leaves 2 lines connected but gives single phasing on the system ,only 2 lines connected not the usual 3
I had this about 2 years ago at home, when a fault blew a connection on a pole about a mile away , power off briefly , came back on , lights dim, tv worked , microwave turntable hardly turned .Instead of having 230v to the house we had about 180volts
It was a bird on a pole , shorted out one line to earth where it went to underground cable , the fault current at that point melted the connection.
I worked on the system for over 40 years and we had this problem many times in the area I worked
x type said:
It sounds like you had whats known as single phasing
The main high voltage system be it overhead or underground runs on three phase at 11kv (11,000 volts) to local transformers if your in the uk Undergound cables normally go bang and the whole lot is offf
The transformers on poles or at ground mounted substations take in three phases at 11kv and give out 3 phases low voltage at 230volts to feed streets etc. or there abouts
If there is a fault somewhere espescially on overhead system , it could be quite far away from where you live , it can blow off or break a connection on one of the overhead line poles .
That leaves 2 lines connected but gives single phasing on the system ,only 2 lines connected not the usual 3
I had this about 2 years ago at home, when a fault blew a connection on a pole about a mile away , power off briefly , came back on , lights dim, tv worked , microwave turntable hardly turned .Instead of having 230v to the house we had about 180volts
It was a bird on a pole , shorted out one line to earth where it went to underground cable , the fault current at that point melted the connection.
I worked on the system for over 40 years and we had this problem many times in the area I worked
Was the bird ok?The main high voltage system be it overhead or underground runs on three phase at 11kv (11,000 volts) to local transformers if your in the uk Undergound cables normally go bang and the whole lot is offf
The transformers on poles or at ground mounted substations take in three phases at 11kv and give out 3 phases low voltage at 230volts to feed streets etc. or there abouts
If there is a fault somewhere espescially on overhead system , it could be quite far away from where you live , it can blow off or break a connection on one of the overhead line poles .
That leaves 2 lines connected but gives single phasing on the system ,only 2 lines connected not the usual 3
I had this about 2 years ago at home, when a fault blew a connection on a pole about a mile away , power off briefly , came back on , lights dim, tv worked , microwave turntable hardly turned .Instead of having 230v to the house we had about 180volts
It was a bird on a pole , shorted out one line to earth where it went to underground cable , the fault current at that point melted the connection.
I worked on the system for over 40 years and we had this problem many times in the area I worked
x type said:
It sounds like you had whats known as single phasing
The main high voltage system be it overhead or underground runs on three phase at 11kv (11,000 volts) to local transformers if your in the uk Undergound cables normally go bang and the whole lot is offf
The transformers on poles or at ground mounted substations take in three phases at 11kv and give out 3 phases low voltage at 230volts to feed streets etc. or there abouts
If there is a fault somewhere espescially on overhead system , it could be quite far away from where you live , it can blow off or break a connection on one of the overhead line poles .
That leaves 2 lines connected but gives single phasing on the system ,only 2 lines connected not the usual 3
I had this about 2 years ago at home, when a fault blew a connection on a pole about a mile away , power off briefly , came back on , lights dim, tv worked , microwave turntable hardly turned .Instead of having 230v to the house we had about 180volts
It was a bird on a pole , shorted out one line to earth where it went to underground cable , the fault current at that point melted the connection.
I worked on the system for over 40 years and we had this problem many times in the area I worked
Must have been quite a bird to short out a 230V main capable of hundreds of amps?The main high voltage system be it overhead or underground runs on three phase at 11kv (11,000 volts) to local transformers if your in the uk Undergound cables normally go bang and the whole lot is offf
The transformers on poles or at ground mounted substations take in three phases at 11kv and give out 3 phases low voltage at 230volts to feed streets etc. or there abouts
If there is a fault somewhere espescially on overhead system , it could be quite far away from where you live , it can blow off or break a connection on one of the overhead line poles .
That leaves 2 lines connected but gives single phasing on the system ,only 2 lines connected not the usual 3
I had this about 2 years ago at home, when a fault blew a connection on a pole about a mile away , power off briefly , came back on , lights dim, tv worked , microwave turntable hardly turned .Instead of having 230v to the house we had about 180volts
It was a bird on a pole , shorted out one line to earth where it went to underground cable , the fault current at that point melted the connection.
I worked on the system for over 40 years and we had this problem many times in the area I worked
Gassing Station | Homes, Gardens and DIY | Top of Page | What's New | My Stuff