Not possible to calculate the resistance in the house as not all loads are pure resistive but are a mixture of inductive and capacitive loads. Not all the loads are active instantaneously as well. A very good explanation but very complex to a real world scenario.
And please explain how the impedance will be different across houses. I mean if yellow house has all devices off at the moment. What will be the impact
The house with low voltage will also lead to electrical machines being damaged or malfunctioning as a result of voltage drop. In this case due to high resistance, a very limited amount of current will flow leading the motor to perform less revolutions per minute. There are more effects than that obviously but not woth of mention here.
It it NOT for you to simply "link" your own TT Earthing to N-bar to make it so called TNCS🚫 TNCS is defined by the Integrity of the PEN Supplied by the Electricity Supplier deemed fit to be used as "Protective Earthing" within Premises.
If you are Adding a Supplementary Earthing (by adding Local earthing rods to Strengthen the PME network) to your TNCS supply, that is another different story.
Assume your earth electrode is corroded or no continuity. You don't know this as the linked neutral was acting as earth. One fine day your service neutral floats. Now no neutral no earth. In this scenario all your appliances will not work. But the metal bodies will get energized due to looping. (phase to neutral to earth to metal bodies). You touch your fridge and die! Hope this helps.
Depends if the Device/Equipment is tailored for 3Ø supply ? Eg 3Ø ∆ Motor will work fine but if any Control circuitry that runs on Single Phase Eg PSU/contactor will probably get damaged. To consider also if that Equipment all-together is protected by any means of Overvoltage Protection devices.
You are so knowledgeable my friend God bless you
Excellent info sir please keep us learning by your knowledge
Well explained
Many thanks for your useful videos
Keep up good work sir
Nice explanation 👌
Very nice explanation!
Thank you sir. Could you do a video on transformer sizing for 200homes
You get new Electrical sub bro...
Great explanation...
Pls can you do full detail tutorial on conduit pipe laying for building and distribution of wires to circuit breaker. Thks
You are right brother the voltage isn't high in fact it swings between high and low depending upon the impedance and power factor of each phase.
Very clear explain for beginner in electrician, my role maintenance electrician so basic troubleshoot methods can you explain please sir.
Very nice bro
Very nice
I am impressed
Please tell the protective measures as well
Keep them wonderful Videos coming Sir 👍.. & May GOD Bless you 🙏
Sir,
How can we find resistance of a House
Nice
Thank you, but
I thought that phase to phase would be 400V at a phase angle of 120 degrees. In stead of 415V.
240/415V
230/400V
Hy, how do I get the resistance of these houses
Not possible to calculate the resistance in the house as not all loads are pure resistive but are a mixture of inductive and capacitive loads. Not all the loads are active instantaneously as well. A very good explanation but very complex to a real world scenario.
And please explain how the impedance will be different across houses. I mean if yellow house has all devices off at the moment. What will be the impact
Would the house with low voltage also suffer damage? E.g. motors that labour and overheat?
The house with low voltage will also lead to electrical machines being damaged or malfunctioning as a result of voltage drop. In this case due to high resistance, a very limited amount of current will flow leading the motor to perform less revolutions per minute. There are more effects than that obviously but not woth of mention here.
What if you link ur earth to neutral bar. From TT to t n c s.what will happen
It it NOT for you to simply "link" your own TT Earthing to N-bar to make it so called TNCS🚫
TNCS is defined by the Integrity of the PEN Supplied by the Electricity Supplier deemed fit to be used as "Protective Earthing" within Premises.
If you are Adding a Supplementary Earthing (by adding Local earthing rods to Strengthen the PME network) to your TNCS supply, that is another different story.
Assume your earth electrode is corroded or no continuity. You don't know this as the linked neutral was acting as earth. One fine day your service neutral floats. Now no neutral no earth. In this scenario all your appliances will not work. But the metal bodies will get energized due to looping. (phase to neutral to earth to metal bodies). You touch your fridge and die! Hope this helps.
If i have a device in my house works on 3 phases and the neutral break down from the transformer, does this device will damaged too?
Depends if the Device/Equipment is tailored for 3Ø supply ?
Eg 3Ø ∆ Motor will work fine but if any Control circuitry that runs on Single Phase Eg PSU/contactor will probably get damaged.
To consider also if that Equipment all-together is protected by any means of Overvoltage Protection devices.
Broken neutral cannot damage 3 phase devices.
If yellow and blue houses lost neutral.. suppose yellow or blue house connect neutral to ground rod ,,what will happen..? is it safe ..?
Yes it will working but it should be very strong like cooper rod or something like that
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