Sir your channel is transparent + up to point information. I have seen many courses, UA-cam channel, institute(charging 35-47000) but the content you are giving is really amazing . I thank u from all young fresher's how don't have money to spend on courses and institute. I not joking , anyone can check any courses, UA-cam channel you will not get this level information.
Nice Videos. I like the clarity you keep in providing the details. Thanks for adding such insightful videos on the ore part of the electrical engineering.
I appriciate your work pls add 2 more topic along with this 1. Slection of earth cable 2. Selection of circuit breaker. Moreover isolator for switching purpose. Look forward to you.
Could you please mention the reference literature where these are explained and equations are given? I need it for my study. Also could you please provide one more example when several cables are berried in the ground and are inside duct?
Truly Impressed, because it was certainly best explanation all over UA-cam.Thank you,Please keep posting. Do post a video about ring main unit(RMU)System.
Two questions here 1. what if the fault current is 50ka, we need to consider a= sqrtt*Ish/k, then cable size increases 2. Secondly while doing the calculation for resistance and reactance you directly took the value but length is 200m so we need to calculate r & x for 200m since value in the catalogue is ohm/km Kindly clarify please
Thanks. Your videos are very easy to understand. Can you please make video for Solar Earthing details for conductor selection, size of conductor. Conductor for LA earthing, Conductor for dc, Conductor for ac etc
thanks for the very informative vid my question could be relevant but in an undirect way as it is about load calc and in particular for water heaters in bath room is there any reduction factor for example if you hav 4 of them 1000 watt each would you take it as 4k or is there anyway to reduce that thanks again
Thanks for the video content. This is helpful reference. I just noticed that during voltage drop calculation, you put full load current 139Amp instead of considering with correction factor 142Amp ??
The bends do not actually affect the current carrying capacity. It will lead to mechanical stress on the cable, I.e. it can get heated at the bending points or even lessen its life. Losses in cable may increase.
hi, this calculation was provided for ac cable size for solar application. In motor case kindly consider the rated current of the motor & Short ckt current.
Can you make a video on an open air ac cable voltage drop wire selection wher the temprature goes above 45 deg in the summer & in to single digits in the winters
Very well explained, could you please make a video for Short circuit current analysis for circuit breaker selection for motor loads or MSB boards (main switch board / LV switch gear panels)
Hi Sir, Thanks for the information and I have a doubt that for resistance and reactance in cable data sheet is for 1km and u have taken a length of 200m So we need to divide the R and X for 200m know? What's ur suggestion?
For overhead you need to consider the clearance on different voltage levels and for current carrying capacity you should refer data sheet and remaining same approach as mentioned in video
Hi, thanks for your video. I have a question. How can I calculate the cable size between a 175kW ABB inverter and a 2640kVA substation? The length of the cable should be 120 m and the soil thermal resistivity coefficient for that area is 1,5 (m*K/W). Also, there are four such a cables in one tranche and I need to find out the minimal distance between the cables in the tranche. I watched your video and I managed to calculate a 240mm cable but not sure if I did it right. Please give me your comments.
hello Mathias, yes I can say that your cable size is suitable. for the distance between the cable refer the data datasheet. consider almost 2xDiamater of cable distance between each cable sideways.
@@electrical-sajid Thank you. That was very helpful! I guess that this required distance obeys to avoid interference of each cable magnetic field among, other reasons.
Full load current is 139A. The maximum current that will flow is 139A. 142A is the capacity of the cable. It means that your cable capacity should be atleast 142A, after laying and considering the derating factor it can carry 139A
Yes you are right, I checked answer should be 4.3 %. I did some error during calculating the answer. Rest all is correct just the end answer should is 4.3%
Sir your channel is transparent + up to point information.
I have seen many courses, UA-cam channel, institute(charging 35-47000) but the content you are giving is really amazing .
I thank u from all young fresher's how don't have money to spend on courses and institute.
I not joking , anyone can check any courses, UA-cam channel you will not get this level information.
Well explanation, ur great 😊
Good
Great ❤
Very nice explanation
Great teaching skills bro
Well explained ❤
Nice information thanks sir🙏
Nicely explained.
great video
Amazing
Nice Videos. I like the clarity you keep in providing the details. Thanks for adding such insightful videos on the ore part of the electrical engineering.
thank you. do SUBSCRIBE & Share for supporting us.
I appriciate your work pls add 2 more topic along with this 1. Slection of earth cable 2. Selection of circuit breaker. Moreover isolator for switching purpose. Look forward to you.
Very nice video. Explained very well. Keep it up
Could you please mention the reference literature where these are explained and equations are given? I need it for my study. Also could you please provide one more example when several cables are berried in the ground and are inside duct?
Truly Impressed, because it was certainly best explanation all over UA-cam.Thank you,Please keep posting.
Do post a video about ring main unit(RMU)System.
Sure
Nice explanation bro
Glad you liked it
Nice video Sir, Similarly Explain the Voltage drop calculation for cable lay in air
It will remain same as derating factors I considered in this video is 0.95
Nicely explain. Thank you for the video. I have a question that is what about the distance we have in given?
Nicely explained in the Video !! Pl give references of standards.
If we r using 3.5Core cable then have to divide resistance & reactance by 3.5c or 3c ?
Two questions here
1. what if the fault current is 50ka, we need to consider a= sqrtt*Ish/k, then cable size increases
2. Secondly while doing the calculation for resistance and reactance you directly took the value but length is 200m so we need to calculate r & x for 200m since value in the catalogue is ohm/km
Kindly clarify please
Thanks
Thanks. Your videos are very easy to understand. Can you please make video for Solar Earthing details for conductor selection, size of conductor. Conductor for LA earthing, Conductor for dc, Conductor for ac etc
Could you explain about short circuit current capacity for electrical control panel (SCCR)
Thank you for the wonderful video. I want to know which cable chart was used for this whole calculation?
Polycab datsheet
Thanks for such an informative video. can you please tell us which standard do you follow for calculation I mean IEC, IS, or any other standard?
@Electrical Engineering: what is cable derating current
thanks for the very informative vid my question could be relevant but in an undirect way as it is about load calc and in particular for water heaters in bath room is there any reduction factor for example if you hav 4 of them 1000 watt each would you take it as 4k or is there anyway to reduce that thanks again
which manual do you could you please refer the book or link please
What for the multiple motors when connected with single transformer
Thanks for the video content. This is helpful reference.
I just noticed that during voltage drop calculation, you put full load current 139Amp instead of considering with correction factor 142Amp ??
It is correct from my side
sir, i have the load of 200 kW what is the choice of voltage level?
how to calculate the cable short circuit ?
where will I find the K Value?
If cables having more no of bends whether it will affect on current carrying capacity?
The bends do not actually affect the current carrying capacity.
It will lead to mechanical stress on the cable, I.e. it can get heated at the bending points or even lessen its life.
Losses in cable may increase.
how do we consider the starting current of the motor and also the overload current in the motor
hi, this calculation was provided for ac cable size for solar application. In motor case kindly consider the rated current of the motor & Short ckt current.
can i bend AC cable 16m2 from inverter to the grid to S shape? Will there be an affect?
Consider the turning radius Rx8
There will be no effect
Can you make a video on an open air ac cable voltage drop wire selection wher the temprature goes above 45 deg in the summer & in to single digits in the winters
I have mention the parameters in this video itself.
Very well explained, could you please make a video for Short circuit current analysis for circuit breaker selection for motor loads or MSB boards
(main switch board / LV switch gear panels)
Kindly refer to my video about, design of solar LT panel ... it is 1MW solar plant design video no. 2
Make a video on breaker selection
Soon
Hi Sir, Thanks for the information and I have a doubt that for resistance and reactance in cable data sheet is for 1km and u have taken a length of 200m
So we need to divide the R and X for 200m know? What's ur suggestion?
Try to get cable datasheet Or you may refer similar cable, another standard company cable datasheet
How to calculate the cable size if the cable is going to be installed both in trunking tray and also underground ?
Same procedure, just according to depth of your trench consider the grouping and correction factor. Rest remains same
Would anyone be able to recommend a VOLTAGE DROP CALCULATION video for 3-phase systems and CEC (Canadian Electrical Code), please?
Great, do you have a course on Udemy?
I am planning to do that
@@electrical-sajid great! Pls let us know it here, I will be the first to buy it
How to calculate the de rating amp of cable
So how will we get these datasheets...
From the manufacturer or supplier from whom you are buying the cables
What about in overhead cable
For overhead you need to consider the clearance on different voltage levels and for current carrying capacity you should refer data sheet and remaining same approach as mentioned in video
Dear how sin@= 0.6?
Its really confusing
Hi, thanks for your video. I have a question. How can I calculate the cable size between a 175kW ABB inverter and a 2640kVA substation? The length of the cable should be 120 m and the soil thermal resistivity coefficient for that area is 1,5 (m*K/W).
Also, there are four such a cables in one tranche and I need to find out the minimal distance between the cables in the tranche.
I watched your video and I managed to calculate a 240mm cable but not sure if I did it right. Please give me your comments.
hello Mathias, yes I can say that your cable size is suitable. for the distance between the cable refer the data datasheet. consider almost 2xDiamater of cable distance between each cable sideways.
@@electrical-sajid Thank you. That was very helpful! I guess that this required distance obeys to avoid interference of each cable magnetic field among, other reasons.
@@mathiasnicola254 yes check it on cable datasheet as well.
The video is really well explained. At the end you have given us notes, Can you please explain as per that point by point.
Sir I want to create a network 1000Km by cable so how much voltage and Ampere and cable gage we are need??
Somnath share all the details, voltage of the system, underground or duct laying? any existing cable? application of the project
Hindi aur urdu me hoti tu bahut achha hota.
what is no of run?
It is number of cables
Have calculation pdf ?
Dear how to calculate the reactance value that sinø=0.6
The details you will find on the cable manufacturer datasheet
Why you have considered FLC as 139 A when the actual current after derating, the cable has to carry current is 142A?
Full load current is 139A. The maximum current that will flow is 139A.
142A is the capacity of the cable. It means that your cable capacity should be atleast 142A, after laying and considering the derating factor it can carry 139A
Length of the cable is not included (200 m) in calculation, Please explain
I have included, timeline 8:43..do check
Sir, the Answer is 4.3%, not 2.2 % can you double-check please
Yes you are right, I checked answer should be 4.3 %. I did some error during calculating the answer.
Rest all is correct just the end answer should is 4.3%
Share excell file
data sheet not visible clearly
Choose better resolution
Great job
Thanks