Відео

Where can we find the example in 47:16 ?

Rachel Ranch

Really Thank You for sharing

Hi people nice video, greetings from Costa Rica!

When I was a young engineer, I was working on an electric utility substation. As is and was common there were two138kV/13.8kV transformers feeding identical switchgear. The gear had anything from 8 to 12 individual; feeders. The normal feeders on one of the subs were the even numbered (2, 4, etc), and the odd feeders were backups for the other sub. On the other sub, the even were back ups and the odd were the normal. I was working with a team installing a new breaker on one of the subs, and I don't recall if it was a normal or a backup. Its twin on the other sub had already been installed and the wiring was complete. I am pretty anal about being certain the two identical feeders be physically wired the same way. To ensure this I went to the other sub to verify the wire routing. Idiot that I was, I opened the door and started to walk in so I could trace the wiring. I had taken my first step, when I realized that the circuit breaker was not in the cubicle and there was bare, uninsulated 13.8 kV energized bus directly in front of me. Time has changed the memory but it seemed like I was only inches from the bus. (Probably was farther but it seems that way 5 decades later. Fortunately, I saw it in time to reverse course, back out, and close the door. I sat down on the concrete pad and started to shake. A few minutes later one of the relay testers that I was working with missed me and came to check on me. When I told him what had happened, the first thing he did was take a rather significant chunk our of my hind quarters. Then, seeing how badly I was shaking he sent me home for the rest of the day. So that is my near miss story. Yes, it stays with you. This happened about 1970. John Cadick

excellent

It's two phase 4 wire (un-grounded) found in some old sections in inner cities.

Enjoyed watching this interview to share in the evolution of the grass-roots beginning, to being in the day-to-day and looking forward to the future insights as mentioned as well.

very, very,very, cool

very, very, very nise

My fiancé is suffering these exact things. Dr’s not believing and people laughing him off. Shocked because of employee mistake causing a ground fault last November and his abilities have dropped drastically. He reported it but the employer made him sit in the sun awaiting a taxi and he had to walk home from workmed. He’s trying to find a lawyer who will actually listen to him. I’m super worried about him because he’s very depressed and not confident he can succeed with another job if he tries to find work elsewhere. He has PTSD and feels like his life is pretty much ruined. This is in Utah, USA. Do you know where he can get help?

Do these devices comply with Australian standards?

I like your video ❤❤❤❤

In regard to the untraceable trend problems caused by variation in load, RPM, and even oil temperature, data-driven method like machine learning could be a real crucial helpful tool.

Wow Canadian OH&S is really terrible!! Australia is getting there but as you say John, it’s only worth anything when it’s being checked and enforced

Question about the 8:20 segment. Is the Final 'Live' check (following the 'dead' check) in the "Live, Live, Dead, Live" procedure specifically documented in NFPA 70E or is it an 'above and beyond' thing?

So many thanks for sharing 👍

I've seen bearing failure in "real time" which caused the shaft to abruptly stop at 4000 rpm during run-down. The so called "haystack" on the spectrum became very prominent prior to failure. We were relying only on spectrum magnitudes and no enveloping was being done. Another time when I saw an ISB failure, a few days prior to the event, the high rotor vibration dropped abruptly and the low rotor vibration spiked suddenly on the strip chart at the same instant.

Keep on making More videos please..🔥🔥🔥

Thank You!

Thanks for your video

Brilliant. Thank you.

Great video. Learned a lot.

Very resourceful

Great video!

Very enlightening! Learnt a lot.

Its a truly terrible experience ,I'm an electrician who's had a few over the last 27 years,got a good one 2008 felt suicidal and never felt mentally the same again,have had major issues in my relationships ever since

great presentation. crisp and pin point. waiting for more videos like this

Lots of good info

Thank you for taking the time to make this video. Very helpful.

I’m a survivor of electric shock,grabbed powrline primary conductor 7200 volts when I was 7 years old climbing a tree.I’m 41 now and lived with effects.Thanks for info

I love this video. It was so helpful

Thanks. That's really cool for industrial company management

I used this webinar as a source for my career exploration class research project, it is very well made and I enjoyed it. Thank you.

Great job guys! Don Hursey

Thanks grace again

nice training

Great talk. Thank you.

You mentioned ultrasonic measurements. Is there a transducer that will interface with the accelerometer data collector that you can recommend?

good stuff

This is really good very down to earth on this info would appreciate more on NEC

Question concerning PPE selection at the 25.45 mark. Can the incident energy be used to determine category PPE? Per 130.5(F) "Arc Flash PPE - The results of an incident energy analysis to specify an arc flash PPE category in Table 130.7(C)(15)(c) shall not be permitted"

Well done. Thank you for all the details!

Like the sharp haircut Don, was talking about you today as I was with Dennis Green - hope you are well buddie!

love from PAKISTAN

Why doesn't this have more views or likes?

Very interesting, but vibrations analyser still very expensive, otherwise, many vibrations defects could be detected at the day of birth, I wish you could make experiments of turning systems, to see and understand more how to use vibration periodic table

Hi, Can you please share the soft copy of this presentation? Email: anurag31177@gmail.com.

Thank u

👍👍