Electrical power is amazing and dangerous at high voltages. Electrical substation is a part of an electrical generation, transmission, and distribution system that transform voltage from high to low, or the reverse, or control the flow of electrical power. Substations may be owned and operated by an electrical utility, or may be owned by a large industrial or commercial customer. Generally substations are unattended, relying on SCADA for remote supervision and control. Here is a collection of videos on electrical substations:
Electrical Grid 101 : All you need to know !
Power Substation Overview
3D Animation of 33/11KV Substation (Outdoor Section)
Electrical Substation visit. Inside an Electrical Substation.
6 Electrical Substation Bus Schemes Explained
375 MVA Transformer – A quick look and energising
500kV substation equipment – A quick look
Broken Hill Substation
132/33 kv Substation overview
132kV Circuit breaker – A brief overview
ABB 145 KV SF6 circuit breaker
354KV Disconnect Openning
500,000 volt line opened under load
Electrical Substation Tour
How to Install the TripSaver II Recloser
Substations and Switchyards [PREVIEW]
50KVA distribution transformer 20Kv-400V
Isolator vs Circuit Breaker – Difference Between Isolator and Circuit Breaker
A practical working explanation of ISOLATOR-Dissconnector switch for 220kV switchyard
Isolator opening on load. All video
Difference between Circuit breaker and Disconnector/Isolator | Explained | TheElectricalGuy
Operation of Isolator With Earth Switch in Electrical Substation
Electrical Substations
Brazil-Argentina HVDC Interconnection
110 kV transformer switching on line
Sub Station Training
20KV High Voltage Transformer – Jaycobs Ladder demo
186 Comments
Tomi Engdahl says:
Real lineman SMU-20 fuse assembly and installation
https://www.youtube.com/watch?v=xPr5Lu9168U
This Real Lineman video shows how to assemble and install an SMU-20 fuse into a switchgear.
Primary Bushing Changeout | Real Lineman
https://www.youtube.com/watch?v=Vdn2P0S0Jjo
This video walks you through changing out a primary bushing on a single phase pole-mounted distribution transformer.
Tomi Engdahl says:
IFD Rev 2011 Rev2
https://www.youtube.com/watch?v=yCdsfj_Nlhk
The IFD is a sensor that detects and indicates internal arcing faults in pole mounted and pad mounted distribution transformers and voltage regulators. The sensor releases a highly visible orange signal that informs line workers the transformer has an internal fault and needs to be replaced. No signal, no fault. The IFD always saves time whether it activates or not.
How to Change Out a Voltage Regulator
https://www.youtube.com/watch?v=tUpSNlsOHsU
In the Arizona desert just outside Phoenix, an Arizona Public Service crew removes a voltage regulator and installs a new one with advanced controls to enable Smart Grid deployment and increase line efficiency.
Tomi Engdahl says:
Underground Splice
https://www.youtube.com/watch?v=Y2f2f0G_jkM
ComEd terminates a new three-phase distribution cable with a Cold Shrink Straight Joint
Tomi Engdahl says:
Underground Residential Distribution Systems [PREVIEW]
https://www.youtube.com/watch?v=Av-2-mNniJc
This course identifies and describes three common types of underground residential distribution (URD) systems: radial feed, loop feed, and double feed systems. URD components, cables, and terminations are also introduced and discussed. This course also describes how URD cable and equipment are installed. It describes checks performed during typical URD system maintenance inspections and how the flexibility of URD systems allows various portions of a loop feed URD system to be installed without interrupting service to customers.
How to Change Out a Padmount Transformer
https://www.youtube.com/watch?v=DOPsOe7xIzs
Kansas City Power & Light (KCPL) crews isolate and change-out a pad-mounted transformer in suburban Kansas City.
Tomi Engdahl says:
Isolating a Disconnecting Circuit Breaker using live line working
https://www.youtube.com/watch?v=VfwpF68Di8k
As it becomes more and more common with live working, performed by special trained staff, the question has been raised if it is possible to use the manual links in the DCB-design for live working.
In a plant taken into service, a test was performed, where a DCB first was linked off from the live switchgear and then reconnected.
Tomi Engdahl says:
Electrical Explosion, Electrical fire, High voltage
https://www.youtube.com/watch?v=B3zltVGa5sk
5 POWERFUL Transformer Failures [What went wrong?]
https://www.youtube.com/watch?v=D8EQPx-ptKk
Tomi Engdahl says:
Pole Transformer
https://www.youtube.com/watch?v=1PxPK4nsU4U
Very basic, points out components and discusses current flow.
How to make Electric Pole Transformers
https://www.youtube.com/watch?v=1DuDZ3JXjyQ
Tomi Engdahl says:
Partial Discharge and Energizing Circuits
https://www.youtube.com/watch?v=S7nFwjaAmjk
Partial discharge on the High Voltage side of a distribution transformer
Livening up 11 kV
Inserting NZI fuses 230 / 400 Volts
Tomi Engdahl says:
Low Voltage Switchgear Arc Flash Solutions
https://www.youtube.com/watch?v=Q8amfAUzytA
Every year, 175 people in the US are killed due to Arc Flash and 2,000 seriously burned. Siemens has taken a series of actions to drastically reduce the risk of arc flash.
Four Methods to Reduce Arc Flash
https://www.youtube.com/watch?v=WUcRaUW0yo8
Personnel hazards due to the release of energy generated by an arc flash include: death, burns, injuries due to ejection of materials, damage to hearing and/or eyesight and inhalation of toxic gasses. In this short video you will learn four ways you can reduce the energy of an arc flash ensuring the safety of personnel and equipment.
Tomi Engdahl says:
High Voltage cable under water
https://www.youtube.com/watch?v=ymEWpip9U7w
Tomi Engdahl says:
Power cable termination
https://www.youtube.com/watch?v=PgD2D2VnNg0
3core, 11kv, xlpe cable termination in Qatar
Tomi Engdahl says:
jr bmc Spannungsfreiheit feststellen Abgang
https://www.youtube.com/watch?v=JT_–1qt90I
Tomi Engdahl says:
Power Transformer Testing – Automatically measuring ratio and winding resistance of all taps/phases
https://www.youtube.com/watch?v=EBPSY88mND0
When manufacturers perform ratio and winding resistance tests at the end of the production process or during factory acceptance testing, time is costly and performing such tests efficiently is crucial. When performing diagnostic tests on site, there’s also a limited window of time. The CPC 100 and the CP SB1 switchbox make ratio and winding resistance measurements efficient by avoiding climbing up and down the transformer repeatedly and reducing connection errors.
https://www.omicronenergy.com/products/cpc-100/
Tomi Engdahl says:
How does a Thermal power plant work ?
https://www.youtube.com/watch?v=IdPTuwKEfmA
How do Wind Turbines work ?
https://www.youtube.com/watch?v=qSWm_nprfqE
Tomi Engdahl says:
How Three Phase Electricity works – The basics explained
https://www.youtube.com/watch?v=4oRT7PoXSS0
n this video we learn how three phase electricity works from the basics. The basics of Three phase electricity explained. We start with a simple single phase AC generator and then add in a second and third phase to under stand its working principle. We also cover three phase power uses and distribution as well as why we don’t use more phases.
Why 3 Phase Power? Why not 6 or 12?
https://www.youtube.com/watch?v=HqZtptHnC2I
Power Transmission Engineer Lionel Barthold Explains how 3 phase, 6 phase, and 12 phase power works, advantages, disavantages, and hopes for the future. Rotating phases, form an anisotropic tube. He worked on experimental 6 and 12 phase power lines at his company Power Technologies, Inc. before it was sold to Siemens after a long successful career. The experimental polyphase lines were located in Malta, New York, not far from company headquarters in Schenectady.
Tomi Engdahl says:
11kV lightning arrestor and exploding disconnecter.
https://www.youtube.com/watch?v=M1NM6rlSwqA
This is a lightning arrester from an 11kV power distribution line with an interesting feature to clear itself electrically when sustained current flows through it.
Inside a robust fibreglass insulated core is a stack of MOV’s (Metal Oxide Varistors) which have a combined voltage to handle the regular peak voltage of the 11kV supply (presumably 15.5kV peak) plus a safety margin. However, when a higher voltage transient occurs on the line the MOV voltage is exceeded and they temporarily develop a lower resistance which shunts the transient to ground to protect other components on the line.
If an excessive over-voltage occurs or the MOVs start to break down after passing a modest amount of transients then there is a disconnecter attached to the bottom of the unit that will literally detonate and blow the ground cable off the end of the unit for safety. The primary function of this is to prevent the lightning arrester from passing significant current from the normal 11kV supply when it fails.
Tomi Engdahl says:
Transformer Banks: Overview
https://www.youtube.com/watch?v=UJA9Y-Wn41E
In this video Mr Rusty gives a brief overview of “Transformer Banks”. He covers several different types, their uses, and the importance of proper wiring and types of connections. In future videos we will be getting more in depth on the specific types of banks.
Chalk Talk: Wye-Delta
https://www.youtube.com/watch?v=T4168xAEPqg
Do you know the transformer rule that applies to Wye-Delta banks? If not, you will find the answer in this demonstration.
Tomi Engdahl says:
Failed Test of High Voltage Ground set
https://www.youtube.com/watch?v=L4yWyvGwE8g
High voltage fault testing of ground set
Tomi Engdahl says:
Why 11kV, 22kV, 33kV, 66kV, 132kV… in India | Interview Question | PiSquare Academy
https://www.youtube.com/watch?v=KLobeE5Tlnw
This video clarify the misconception behind the voltage levels
Tomi Engdahl says:
Half Million Volt Workers Part 1
https://www.youtube.com/watch?v=9Lbmis-VUW0
Half Million Volt Workers Part 2
https://www.youtube.com/watch?v=AQLPFWxEhIc
Half Million Volt Workers Part 3
https://www.youtube.com/watch?v=3oSDDr4uNnw
Tomi Engdahl says:
5-28-11 First HV Test in Leonard St Labs
https://www.youtube.com/watch?v=TzpE3JSHsQM
First low-power high voltage test in the new Leonard St. Labs.
14,400 Volts at 10kVA
Tomi Engdahl says:
How 80kV VLF HV testing equipment to test power cable
https://www.youtube.com/watch?v=Qc4q2juwXvE
Tomi Engdahl says:
Utility Wire Sizes
https://www.youtube.com/watch?v=OxSbtka09fU
About wires and cables used in electric utility lines. M. Morlang explains the use of each wire at the San Miguel Power Association warehouse. See old copper conductors and the ACSR cable replacing it. See conductors from 4 kV to 120 kV. Overhead service cables and high voltage. This video goes along with our page on wires and electricity:
http://edisontechcenter.org/wires.html
Tomi Engdahl says:
A Bright Arc (6 of 7): Contact with a Power Line
https://www.youtube.com/watch?v=Xvlk_73bSvc
This video deals with the dangers of working near overhead and underground power lines. Dramatic footage and computer animation show what can happen if you or someone on your jobsite accidentally contacts an energized power line.
Tomi Engdahl says:
Electrical Transformer Explosion, Scarborough, Cape Town, South Africa
https://www.youtube.com/watch?v=xE1HpbmiwCM
Loud explosion blown fuse transformer bank Chamberlain SD
https://www.youtube.com/watch?v=dXaoCfGPHGo
Tomi Engdahl says:
115kv dragon
https://www.youtube.com/watch?v=CB5UXvMTNVo
Comment:
has an arc of electricity spit right in his face that could kill him
Guy: WOOOOOOO!!!!!
Tomi Engdahl says:
Transformer Testing – Transformer Test and their Procedure
https://www.youtube.com/watch?v=lxQPdrgl8X0
Transformer Testing – Transformer Test and their Procedure
For confirming the specifications and performances of an electrical power transformer it has to go through numbers of testing procedures.
Power Transformer Testing
https://www.youtube.com/watch?v=4L0ch0-Paq8
Power transformers transform electrical energy from one voltage level to another – by stepping voItages up for transmission to minimize losses, or down for distribution. During regular operation, and in particular during an electrical fault, power transformers are subject to electrical, mechanical, thermal, and environmental stresses. Therefore utilities and service providers test power transformers, in order to assess their condition, schedule maintenance work and plan their replacement.
Tomi Engdahl says:
Partial Discharge on an 11kV cable
https://www.youtube.com/watch?v=7b2IWRLxWoU
Last night we had an emergency shutdown on a SD1 oil switch unit in which an 11kV cable was discharging through the insulation to Earth.
Electricity.
Over the years the ground has moved and put pressure on the cables and insulation slowly deteriorated to a point that the risk of a blow out was possible.
A preventative emergency shutdown was arranged for the night and the fault fixed.
It is important that people in the industry know the types of sound associated with potential problems.
Tomi Engdahl says:
Chalk Talk: Delta Connection
https://www.youtube.com/watch?v=_gwe4KwgT1o
In this video you will learn how the Delta symbol correlates with the transformer connections.
A free training video from Northwest Lineman College
Tomi Engdahl says:
Chalk Talk: Primary Connection Rule
https://www.youtube.com/watch?v=bwM6dZ9BSlU
Learn about the primary connection rule as it applies to both Wye and Delta transformer connections.
Transformer – Understanding. Delta/Wye Connections, (12min:11sec)
https://www.youtube.com/watch?v=a8LjxEtd8N8
Tomi Engdahl says:
Chalk Talk: Open Wye Open Delta Same Opposite
https://www.youtube.com/watch?v=QyDdcynvv6I
Tomi Engdahl says:
Electric Arc On Powerlines With Snow
https://www.youtube.com/watch?v=RG1R11Q3bi0
Some Powerlines begin to arc and buzz with the amount of snow on them
Tomi Engdahl says:
How the 3 phase Y transformer works
https://www.youtube.com/watch?v=UrLR9gq4GHI
This one gives a quick discussion of how the 3 phase Y system works and the voltages available.
Tomi Engdahl says:
Say Cheese!!! – Transformer Short Circuit
https://www.youtube.com/watch?v=m8ssFl0wjMk
Comments:
This type of transformer is fused inside, if the primary winding shorts, it would just make a little boom, no high voltage driven to the secondary line.
Tomi Engdahl says:
Recloser – How to Operate
https://www.youtube.com/watch?v=ZnLUZ_sPK7E
Learn how to operate a recloser both manually and using the smart control panel.
How to Change Out a Recloser
https://www.youtube.com/watch?v=d7mjEI26Vks
In a convenience store parking lot just outside downtown Phoenix, an Arizona Public Service crew removes a recloser and installs a new recloser to provide feeder fault isolation, reduce customer outages and provide faster recognition and response times in the case of line events.
Tomi Engdahl says:
Star and Delta Connection – Explained | TheElectricalGuy
https://www.youtube.com/watch?v=-PuVmOLr5K8
Star/wye connection and delta connection are the two different methods which are used for connecting 3 phase system. In this video, we’ll learn in detail about star and delta connection. We’ll also know voltage and current relationship in both the connections, and where these connections are used. So, if you want to get the details, you need watch the video.
Tomi Engdahl says:
Understanding Rise of Earth Potential
https://www.youtube.com/watch?v=ziOKoWEIDH8
Rise of Earth Potential from substation phase fault.
Tomi Engdahl says:
Transformer explosion
https://www.youtube.com/watch?v=rHVh0KwG_0k
I saw a transformer on my way home the other night. Thought it might be cool to film it’s self destruction
Electrical explosion, sparks light up Kenner sky
https://www.youtube.com/watch?v=IY1c-NZPh8A
It was a spectacular display of light that left thousands of Kenner residents in the dark on Thursday.
Tomi Engdahl says:
Electrical explosion, sparks light up Kenner sky
https://www.youtube.com/watch?v=IY1c-NZPh8A
Tomi Engdahl says:
Why the night sky turned blue across New York City
https://www.youtube.com/watch?v=ioldAqFk6sw
Con Edison says an electrical fault at a substation in Astoria, Queens caused an electrical arc Thursday night, lighting up the sky over New York City while causing some flight delays and scattered power outages.
“An electrical fault on a section of 138,000-volt equipment in one of our Astoria substations caused a transmission disturbance and a sustained electrical arc flash, creating the blue light people witnessed. The equipment that malfunctioned is associated with voltage monitoring within the substation.”
Look What Happened BEFORE the Strange Blue Lights of NYC!!
https://www.youtube.com/watch?v=7jr0N_WgIL4
Tomi Engdahl says:
Bright sky at night: power plant explosion turns New York City horizon blue
https://www.youtube.com/watch?v=zDeFlNZYhYQ
New Yorkers began posting videos on social media of their city awash in a neon blue-green light shortly after 9pm on Thursday night. A huge explosion and fire at a Queens power plant created the eerie flickering lights which many likened to scenes from an alien invasion. Authorities were investigating a transformer explosion at a power plant in Queens that caused a massive power outage and ground stop for LaGuardia Airport
Tomi Engdahl says:
Electrical Short Circuit | Transformers
https://www.youtube.com/watch?v=mqEaIdvxXYQ
This electrical engineer was wearing a GoPro on the job and got a scary mishap on tape. When a transformer short circuited, it caused quite an unbelievable scene. Check out what happened!
Tomi Engdahl says:
500kV Airblast breaker and switch opening
https://www.youtube.com/watch?v=PdiJWQmSi0k
Test operation.
Tomi Engdahl says:
Linemen Demonstrate How We Restore Power
https://www.youtube.com/watch?v=CSQ7C5gsrVc
Our crews demonstrate how we restore power safely from start to finish.
Tomi Engdahl says:
Transformer Explosion Hurricane Sandy, Cliffside Park NJ
https://www.youtube.com/watch?v=-gUD31Bqnuo
Tree fell on power lines causing transformer to explode during hurricane Sandy
Tomi Engdahl says:
Overhead line connection work
https://www.youtube.com/watch?v=qJ_2WfWk450
Connection work with overhead lines had been done via methods of live line work for over an decade.
Live line work: customer friendly – efficient – cost-effective
Tomi Engdahl says:
3D Animation of 33/11KV Substation (Outdoor Section)
https://www.youtube.com/watch?v=ejC7bTBQo24
Tomi Engdahl says:
Replacing poles
https://www.youtube.com/watch?v=LnjrvUvO7p4
Isolating a Disconnecting Circuit Breaker using live line working
https://www.youtube.com/watch?v=VfwpF68Di8k
Tomi Engdahl says:
Live line work
https://www.youtube.com/watch?v=VG0KB4XODXk
Refurbishment of 400kV live power line using aerial live work techniques by Chopper Worx
115kv dragon
https://www.youtube.com/watch?v=CB5UXvMTNVo
Tomi Engdahl says:
33kV Live suspension Insulator replacement
https://www.youtube.com/watch?v=fP6n6DCPlrI
33kV Live suspension Insulator replacement works carried out at Ratkarawwa, Sri Lanka, without interrupting the power by linemen working in Ceylon Electricity Board.