![chriskitcher](/img/default-banner.jpg)
- 49
- 2 549 841
chriskitcher
Registrace 5. 11. 2009
Electrical installation training and advice
Video
Solar PV Testing with Chris Kitcher 'Why Megger?' 🌞😎 Episode 7
zhlédnutí 942Před 10 měsíci
Get to know me a bit more and my reasons for using Megger. I am not sponsored by them but have used them all my life. "🌞 Master the Art of Solar PV Testing with Chris Kitcher! 🌞 Join us for an electrifying journey into the world of Photovoltaic (Solar Panel) Testing in this must-watch series. If you're an electrician looking to enhance your skills, you're in for a treat! In this course, I will ...
Solar Testing the PV arrays for Earthing and Bonding 🌞😎 Episode 3
zhlédnutí 1,2KPřed 10 měsíci
To bond or not to bond that is the question? "🌞 Master the Art of Solar PV Testing with Chris Kitcher! 🌞 Join us for an electrifying journey into the world of Photovoltaic (Solar Panel) Testing in this must-watch series. If you're an electrician looking to enhance your skills, you're in for a treat! In this course, I will be showing you how to correctly carry out the tests and why we need to do...
Solar PV short circuit test with Chris Kitcher 🌞😎 Episode 5
zhlédnutí 2,6KPřed 10 měsíci
Solar PV short circuit test "🌞 Master the Art of Solar PV Testing with Chris Kitcher! 🌞 Join us for an electrifying journey into the world of Photovoltaic (Solar Panel) Testing in this must-watch series. If you're an electrician looking to enhance your skills, you're in for a treat! In this course, I will be showing you how to correctly carry out the tests and why we need to do them. As all ele...
Solar PV Training | How To Test Solar PV 'Recommissioning' 🌞😎 Episode 6
zhlédnutí 757Před 10 měsíci
"🌞 Master the Art of Solar PV Testing with Chris Kitcher! 🌞 Join us for an electrifying journey into the world of Photovoltaic (Solar Panel) Testing in this must-watch series. If you're an electrician looking to enhance your skills, you're in for a treat! In this course, I will be showing you how to correctly carry out the tests and why we need to do them. As all electricians know, working on D...
Solar PV insulation resistance test with Chris Kitcher. 🌞😎
zhlédnutí 6KPřed 10 měsíci
Solar PV insulation resistance test episode 4 "🌞 Master the Art of Solar PV Testing with Chris Kitcher! 🌞 Join us for an electrifying journey into the world of Photovoltaic (Solar Panel) Testing in this must-watch series. If you're an electrician looking to enhance your skills, you're in for a treat! In this course, I will be showing you how to correctly carry out the tests and why we need to d...
Solar PV Testing with Chris Kitcher 'Open Circuit Test' 🌞😎 Episode 2
zhlédnutí 2,3KPřed 10 měsíci
Solar PV Voc test "🌞 Master the Art of Solar PV Testing with Chris Kitcher! 🌞 Join us for an electrifying journey into the world of Photovoltaic (Solar Panel) Testing in this must-watch series. If you're an electrician looking to enhance your skills, you're in for a treat! In this course, I will be showing you how to correctly carry out the tests and why we need to do them. As all electricians ...
Solar PV decommission with Chris Kitcher 'Safe Isolation' 🌞😎 Episode 1
zhlédnutí 861Před 10 měsíci
Solar PV decommission "🌞 Master the Art of Solar PV Testing with Chris Kitcher! 🌞 Join us for an electrifying journey into the world of Photovoltaic (Solar Panel) Testing in this must-watch series. If you're an electrician looking to enhance your skills, you're in for a treat! In this course, I will be showing you how to correctly carry out the tests and why we need to do them. As all electrici...
Chris is like the videos. I have a question that I hope that you can help with. After a system has been in commission for some time when I have to go and perform a periodic test on the system, performing any test that requires access to the roof is difficult when the scaffolding has been removed. I am thinking of IR tests. Due to the inability gain access during a test on an EICR on a typical electrical installation I would LIM the area with no access. I am hoping and expecting you to say the LIM can be applied to the IR test on a PV system especially if the Panel String produces Open Circuit Voltage in line with expectations regarding the manufacturers figures and the irradiance test on the day. I hope you will comment on this. Thanks for the vids. P.s. I have bought your testing book in the past after viewing other videos.
Test positive to earth, clamp earth to exposed part of the inverter which could be bear metal screw or grill repeat the process with negative. Same applies above 1MOhm or 0.5Mohm @250v if the total voltage of array is <120 Regarding floating system
Thanks for the videos Chris I wish that I had them when I did my BPEC training the videos bring much more clarity to the process and your DC Isolator test connection device will aid further testing. I am not a fan of arcing!
Chris when I did my BPEC training I am happy to report that I argued the points that you made in this video and I agree with you. However your explanation bring so much clarity to the conversation.
Thank you for the information I like the way you explain the work
czcams.com/video/u_K2SIE1upM/video.html
Hey Chris, great vid. If you don't mind sir, please clear up the following: 1) I assume this is an ungrounded array, meaning neither + or - from the array is solidly or functionally grounded, correct? 2) I understand when you short the array, there is 0 volts at Isc but the array Isc current (I think you said 14A) is still flowing in both cables and now you are back-feeding 500V from the megger to produce a 2nd possibly high leakage current to ground to measure insulation resistance (megger doing ohms law). I understand the megger current is normally very low with good wires but is there an issue with the megger accuracy when both current sources are flowing on the shorted cables at once?
Hi Jon, Because this is a pv panel once the ends are joined the current will not flow anywhere other than within the panel. (Its a bit like shorting the ends of a current transformer for safety). It will have no effect on the accuracy of the insulation resistance reading. I hope this answers your question. Best regards Chris
Is you carry out an earth loop test as you would normally the instrument will give you both Ze and PEFC on the same screen. Hope this helps.
Is there a video clip measuring the short-circuit current between L and PE? I want to know the short-circuit current between L and PE that is PE in a TT system. I want to know how many amps the short-circuit current between L and PE will be? Thank you very much, sir.
Can this model test the short-circuit current between L and L?
Yes it does all of the tests required easily
@@chriskitcher Thank you very much, sir. I'm looking to buy this model to use.
@@chriskitcher How many kA of maximum current and circuit can this machine test?
The only tester of any kind in the world that I've seen that for some reason has OFF function in the middle of the selector scale, which basically means it's unavoidable to cycle through tests without switching it off and on. again and again..???
Having used it for a while now I can tell you that scrolling through off is no different than switching between tests, there is no delay at all unless you stop on off and even then it switches back on in a second or two. The switch seems sensibly placed as live tests are one side and dead tests other than voltage measurement are the other side. Like all test equipment you soon get used to whatever you are using.
Wonderful explanation of how to wire a s plan system first class
Very clearly explained!
The reason we have DC isolators adjacent to the Inverter is so if the Inverter needs to be serviced off site, we can isolate the 'Tails' that go to the Inverter, instead of leaving the Live MC4 end waving in the breeze. But some Inverters have an integrated Isolator that you can unclip from the Main Inverter, so will negate the need for a seperate DC isolator
I think you will find that unplugged MC4 connectors meet all IP requirements and would not present a problem if identified and tucked away safely while any servicing carried out. My view is that providing the inverter has its own integral DC isolator the addition of an additional isolator is of no value and adds an additional possible point of fault. It’s a matter of choice I guess.
Love all of Chris videos.😀
Christopher Kitcher is one of the best at explaining various aspects of the electrician's trade.
How did you set up the handsfree function? My tester says invalid connection when I press test?
You need to go into settings and allow the auto start hands free function. Once you have done that push the test button and the triangle on the screen will pulse, then connect leads.. There is a user manual on line for the X1 you need page 44. Hope this helps
@@chriskitcher Thanks! The option to auto test was missing in the settings. I contacted Megger and they said to update to the latest firmware which I did and it solved the problem!
Hi Chris! You make it all straight forward!great clarity in your videos! 😊Regards mg.
Hi Chris got a diagram of the connections for your DC test box?
I will draw one and put it on my channel for you. Give me a few days
Thank you Chris
Hi great videos just out of curiosity did you ever do the video for bonding solar panels on metal roof
I will get one done, it will probably be just a talk through the different scenarios and how to check if it is needed at all
Hi bro you are best very good 👍
Thank you for your patience and dedication. Your guidance has been invaluable, and I appreciate your commitment to helping me improve.
really great vid i have been thinking of an upgrade to this tester, what do you think of it could you do a review thank you
The more I use it the better I like it, with regard to the r1+r2 test it is much quicker in most instances than my vid shows. Just happens to be a lot of earth noise in the building which slows it down but very accurate regardless
@@chriskitcher thanks I have ordered one will let you know how I get on 👍
Hi sir how do you test single phase motor
That made up my mind regarding buying one for nearly 2 grand. Not for me, to slow. I will stick with my supposedly accurate certed old megger that is a lot faster and has auto live readings. Really Megger.
What should be the range of accurate resistance values for eleçtrical 3 phase motors
Haven't been seeing you for a while! Hope you're doing well sir
Thank you sir
It's very pleasure to see you again, sir.
Good to see you well sir . The sound quality wasn't that good . Thanks though .
Yes I agree sound not so good as empty building. I promise to do better next time. Thanks for the comment though, always appreciated good or bad, I’m not to proud to listen
I understand the theory of what the instrument is doing, but I thought that we don’t generally measure volt drop in this way, as the test at origin and at the remote location, really needs to be performed simultaneously with the same instrument. Due to fluctuations naturally occurring in the supply voltage. If you test at origin then few minutes later test at the remote point the supply voltage will naturally move around due to loads being switched on and off (perhaps in neighbouring properties) Great video though Chris👍👍
All I can say is that I did a dead test and calculation, I then followed it up by doing the test in the video and the results were very accurate. In fact possibly the live test my well be a better method as when we do a calculation we would use 230 volts. The live test uses the true voltage. Interesting though isn’t it?
nice 😀
Good to see you doing videos again Chris , I always liked your clear and concise style of explaining things .
great video as always. nice clear explanations
Hi Chris, thanks for your videos, Any idea when the DC Test Device build video will be available?
I will try and get it done over next few days
Thank you for sharing this great information.
Thank you Sir!
Very good explanation and video ❤❤❤
Hi Chris, what was the lead you used from the bottom of the isolator to the Megger tester?
I’m sorry Gary but you are wrong. If you look the socket is on a plastic containment system ( upvc conduit). Parallel path? I don’t think so! Mind you the vids are there for you guys to learn from and it’s nice that you are watching them, I hope they help you. Best regards, Chris
Why would parallel paths matter, he's measuring from live to the earth bar, it doesn't matter that there are parallel paths to ground. If he took out that radials CPC from the earth bar and just measured the CPC to live, the R1 + R2 would be the same.
Yes great vid but.. not a true Readings with Parallel paths Connected so… still be close though but all your lads learning don’t do this way disconnect earth GB LEC
Great idea with the isolator; I'm going to make one. I assume that, since this is a 2-pole isolator, it connects diagonally. So, terminal 1 connects to 4, and 3 connects to 2. Then make a link between 2 and 4 with a second cable in terminal 4 with a female MC4 connector on it, correct?
It doesn’t matter which way you connect just link bottom terminals
and how did u know that coil is beggining leads and ending leads?
Awsome😊
Sir, when you connect the positive and the Negative ends of your solar PV string into the isolator, you basically shorted them? Will that be ok? No damage to the panels. Pardon my being a newbie. 😅
No damage will occur, joining them together is the correct way to carry out a short circuit test. Always ask if you are unsure.
thanks
Still awsome😊
I used the Ci rating factor from the OSG accidentally. Easily done. It's not surrounded by insulation, just laying on top
Thanks so much! What's the HP of this motor?
I can see this video has been around for a few years and hope my comment finds you in good health. These instructions may just have saved me a call to the plumber. Time will tell. But looking good so far, .. just a little spin was all it needed. Thanks a bunch!
That’s great to hear, I’m glad it helped