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Fictitious diameter of conductor calculation || Short trick || EHV Cable core
Fictitious diameter of conductor calculation || Short trick || EHV Cable core
zhlédnutí: 2 045
Video
Three phase Supply : Star & Delta Configurations | Explained | Be An Engineer
zhlédnutí 974Před 4 lety
in this video about three phase connections s explained. Why three phase, why 120 degree, what are star and delta configurations, about their voltage and current calculations all these are explained here. This video also cantons an example for a better understanding of the 3 phase supply.
Active, Reactive and Apparent Power | Superbly Explained | Difference | Calculation | Be An Engineer
zhlédnutí 28KPřed 4 lety
In this video i have discussed about the basic concept of Electrical Power. Active, Reactive & Apparent Power these three types of power are explained here and calculations and formulas are also derived here with just basic concepts. For understanding power system one should have the knowledge of various powers and calculations of these. Here basic about the powers are discussed that is useful ...
How to install electric pole manually in 10 minutes ||
zhlédnutí 12KPřed 5 lety
The purchaser and installer must provide electrical groundings and warnings about electrical hazards in accordance with applicable codes. Attach sling to top of pole. Attach luminaries and complete wiring. Place leveling nuts and washers on anchor bolts. Erect pole. Position over anchor bolts and set on leveling nut washers. Place anchor nuts and washers on anchor bolts and tighten once pole is...
IEC Standard || International Electrical Standard
zhlédnutí 25KPřed 5 lety
IEC Standard || International Electrical Standard: 1. Neutral should be linked (Neutral should be connected to load terminal and comman to all load) 2. Switches and fuses should be connected to live wire 3. All metallic covering ontaining electric supply wires metallic apparatus should be earthed with an earth electrode. Ex.- Oven, Heater, Refrigeratore, Iron etc. 4. Total load in the circuit s...
How to Calculate Circuit-Breaker Rating || Circuit breaker amp size
zhlédnutí 127KPřed 5 lety
How to Calculate Circuit-Breaker Rating: Example: Motor - 40 kw Voltage - 380 V Power Factoe-0.8 Circuit Breaker-? Answer: First we Convert KW to KVA KVA = KW/ P.F. KVA = 40/0.8 KVA = 50 Now we calculate current rating Current (I) = Conneted Load/√3 x Voltage Current (I) = 50 x 1000/√3 x 380 Current (I) = 75.96 A Circuit Breaker = Current x 25 % Safety Factor Circuit Breaker = I x 1.25 = 75.96 ...
How to convert ton into kw in AC || Ton to KW in 2 Sec. (Formula)
zhlédnutí 15KPřed 5 lety
How to convert ton into kw in AC: 1 ton = 12000 BTU British Thermal Unit 1 BTU = 0.0003929 hp Example: We have AC of 1.5 ton Answer: 1.5 ton = 1.5 x 12000 = 18000 BTU hp = 18000 x 0.0003929 = 7.072 hp we know that 1 hp = 0.746 kw Kw = 7.072 x 0.746 = 5.275 kw Thumb Rule in 2 sec. 1 ton 3.5 kw Facebook Page: Be-A-Engineer-349501692418276/?modal=admin_todo_tour
Calculate KW to Amps, HP to KW. KVA to KW || With-in 2 second || Trick
zhlédnutí 93KPřed 5 lety
Calculate KW to Amps, HP to KW, KVA to KW (With-in 2 second) || Trick 1. KW to Amps Example: (i) AC single phase We have 10 kw Ans.=10 x 1000 / 184 = 54.34 A (ii) AC three phase We have 100 kw Ans.=100 x 1000 / 575.02 = 173.9 A 2. HP to KW Example: We have 10 HP Ans.= 10 x 0.746 = 7.46 kW 3. KW to KVA Example: We have 3 kW Ans = 3/0.8 = 3.75 kVA Facebook Page: Be-A-Engineer-3495016...
What is Voltage drop || How to calculate voltage drop with formula and example
zhlédnutí 28KPřed 5 lety
What is Voltage drop: How to calculate voltage drop with formula and example Example: Resistor R1 = 10 ohm"s Resistor R2 = 5 ohm"s Voltage= 220 V Answer: Ohm’s law V = I x R(t) R(t) = R1 R2 R(t) = 10 5 R(t) = 15ῼ Put the value in formula- I = V / R(t) I = 220V / 15ῼ I = 14.66 A Voltage drop in R1: V = I x R1 V = 14.66 A x 10ῼ V = 146.66 V Voltage drop in R2: V = I x R2 V = 14.66 A x 5ῼ V = 73.3...
How to calculate cable size || Cable calculation formula with example
zhlédnutí 202KPřed 5 lety
How to calculate cable size: First we must know these three values: Load - ? Voltage - ? % efficiency - ? Example: Load (P)=1 kW Voltage=230 V % Efficiency=80% Answer: Formula- P = V x I x CosØ x efficiency % 1000 = 230 x I x 0.8 x 0.8 I = 6.79 A Every Motor have Voltage drop avg.=2% Voltage drop=6.79 x 2% =0.1358 A Total Current=6.79 .135 = 7 A For Al Cable: 1 sqmm =1.5 A So 7 A = 1/1.5 x 7 7 ...
How to calculate short circuit current rating in transformer || Fault level calculation
zhlédnutí 141KPřed 5 lety
How to Calculate Short-Circuit Current: First we must know these three values- X-mer Rating = ? Secondary Voltage = ? % of Impedance = ? Example: X-mer Rating- 1500 KVA Secondary Voltage- 480 V % Impedance- 5.75% Answer: Formula:- (a) Isc = FLA / % Z Impedance (b) FLA= KVA / (√3)×(kVsec) Put the value in this formula FLA= 1500 / (√3)×(.480) FLA= 1,804 Amps Put value of FLA in Isc formula- Isc =...
Calculate KVAR Rating in Electrical Panel || Capacitor rating calculation
zhlédnutí 56KPřed 5 lety
How to Calculate KVAR Rating in Electrical Panel : First we must know these three values: Load = ? Power Factor = ? Achive = ? Example- Load = 150 kW PF = 0.70 Achive = 0.99 Answer: Formula- KVAR = P (tanØ1 - tanØ2) Here, 1. CosØ1=0.7 Ø1=Cos-1(0.7) Ø1=45.57 2. CosØ2=0.99 Ø2=Cos-1(0.99) Ø2=0.10 put the value in formula- KVAR = 150{tan(45.57)-tan(0.10)} KVAR = 150(1.02-.14) KVAR = 150(.88) KVAR =...
How to calculate electrical panel weight || Sheet metal calculation in kg.
zhlédnutí 6KPřed 5 lety
Panel weight calculation in kg.- Formula for Steel Sheet Weight : Formula: Weight (Kg.)= 7.85 x Length (mm) x Width (mm) x Thichness (mm) x 10-6 Here, 7.85 = Density Factor of steel
How to calculate busbar weight for Al & Copper in Electrical Panel || Busbar Calculation
zhlédnutí 13KPřed 5 lety
How to calculate busbar weight for Al & Copper in Panel: Thumb Rule for Aluminium Busbar- Area (of Busbar) x 8.9 x Length (of Busbar) x 10-6 Example- Al busbar Width - 40 mm Hight - 10 mm Length - 1000 mm Answer: = (40 x 10) x 8.9 x 1000 x 10-6 = 3.56 kg. Thumb Rule for Copper Busbar: Area (of Busbar) x 2.7 x Length (of Busbar) x 10-6 Width - 40 mm Hight - 10 mm Length - 1000 mm Answer- = (40 x...
How to Calculate Busbar size in Electrical Panel || Calculate Aluminium & Copper Busbar size.
zhlédnutí 91KPřed 5 lety
How to Calculate Busbar size in Electrical Panel: THUMB Rule for Busbar : For Aluminium : 0.7 Amps / 1 Sq.mm of Bar. For Copper : 1.2 Amps / 1 Sq.mm of Copper. Here the above mentioned rules are not standard. Because some case people will add Tolerance in the Positive End. i.e They used 0.75 Amps / 1 Sq.mm of Bar & 1.4 Amps / 1 Sq.mm for Aluminium & Copper Respectively.
How to convrt kilo-volt-ampere to kilowatt || Convert kVA to kW
zhlédnutí 1,5KPřed 5 lety
How to convrt kilo-volt-ampere to kilowatt || Convert kVA to kW
How to convert Horsepower to kilowatts || HP to KW conversion
zhlédnutí 14KPřed 5 lety
How to convert Horsepower to kilowatts || HP to KW conversion
How to convert Kilowatt to Ampere || Kw to Amps
zhlédnutí 8KPřed 5 lety
How to convert Kilowatt to Ampere || Kw to Amps
P(active power)= S cos0= 20 cos 0= 20KW Q(reactive power)= S sin 0= 20 sin 0= 0Kvar
You explained 3 phase current & didn't explained 3 phase cable size
Wrong calculation
Active Power=20kw & Reactive Power=0KVAR
Best idea
czcams.com/video/419WoOpJOIc/video.htmlsi=LAr_qtJSZoylOfmh
2 second okay but what is unknown data
Safety factor =125 % = 1.25 not %25 (0.25) as shown in "red strip" ------- circuit breaker= Ix 25% safety factor
Active Power is 20kW and Reactive Power is 0kVAR
Where did you get cos fi value?
Active power is 20KW & no Reactive power
Active power 20 kw Reactive power 0kvar
How can you calculate without given Voltage??
Description me Al & copper busbar ki density galat mention ki hui hai, (Actual me Al. ki density 2.7 hai or Copper ki density 8.9 hai) Please correct your description.
Calculation explain are done but i think copper and Aluminium mass density interchange.
so based on this calculations we select MCCBs short circuit ratings?
Pls, how did u get 1.25 as safety factor?
Excellent man
Or you can just divide your nominal voltage by the circuit Ze. Also the definition of PSCC is not what you said, either. A short circuit is the unintentional interconnection of the live conductors & you don’t double it unless it’s 3 phase.
Wrong h
Active Power=20Kw while Reactive Power= 0Kvar
Nice bro
What value is 100 at the last calculation
25 percent how result become 1.25 ?
#ವಿದ್ಯುಚ್ಛಕ್ತಿ #ವಿದ್ಯುತ್ #ಕಂಬ #ಅಳಪಡಿಕೆ #ಲಕ್ಷ್ಮೀನಾರಾಯಣ #ರಾವ್ #ಕೃಷ್ಣಾಪುರಮಠ #ಬಳಿ #ಸುರತ್ಕಲ್ #ಸರಬರಾಜು #ವಿತರಣೆ #ತಂತಿ #ಕೈಕೆಲಸ #ಶ್ರಮ #electricity #pole #distribution #supply #manual #labour #erection
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P/v×cos°×effiency 1Phase formula how to possible 6 A
Good job bro
NANDRI THALAIVAAA
You all have to keep in mind this formula was for three phase systems not single phase
Would the wire size also be rated for 100 amps ?
were you got 184
I x .25 not 1.25
Thanks
hey man, where you get the formula reference ? cz i can find anywhere
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good
regarding this cable size ans is not understand how you got ans i=20.5 A explain clearly
Sir cable cross section calculation ka video banao
1. Solve the Voltage Drop and % Voltage Drop of a 3PH Motor 65 Amperes with a length of conductor of 100ft (Copper Wire) .how can i solve this?
But i think difference in case at startin of motor when use star delta starter and case when use direct on line starter
Hi there, I'd like to know what is the difference between AT and AF breaker rating . thank you
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1.25 yenna value
Great basic video for someone like me. Our plant has a pad mount transformer I can calculate using this.
why 2% voltage drop for single phase versus 5% drop for three phase? can it change?