How do you measure conductor spacing?
The two most important spacing distances are the shortest distance through air between any two conductors (clearance distance), and the linear distance traveled over the surface of the PCB between any two conductors (creepage distance). Both of these distances are determined by the voltage used on the PCB.
What should be the spacing between the two conductors if the working voltage is 11 kv?
101 mm
What is the minimum distance between one to another pole for an 11kV transmission line?
The center-to-centre distance between the holes shall be 1070 mm (for 11kV) and 1525 mm (for 33kV) and holes shall be in the middle of the top width of cross arm. 2.3 If required by the owner, holes of specified size and spacing shall also be provided for fixing of pole back clamp to suit the pole.
What is the current in 11KV line?
An 11 kV distribution circuit may carry 150 A in each of its three phases, thus transmitting a power of 3 MW. A 400 V final distribution circuit may carry 200 A in each of its three phases, thus transmitting a power of 150 kW.
What is the formula for KVA 3 phase?
Electrical Formulae for Calculating Amps, Horsepower, Kilowatts, & KVA
| To Find… | Direct Current | Alternating Current |
|---|---|---|
| Three Phase | ||
| Amperes when Kilowatts are known | KW x 1000 E | KW x 1000 E x PF x 1.73 |
| Amperes when “KVA” is known | KVA x 1000 E x 1.73 | |
| Kilowatts | E x I 1000 | E x I x 1.73 x PF 1000 |
How do you calculate 3 phase current?
To find the power given current, multiply by the voltage and then the power factor to convert to W. For a three phase system multiply by three to get the total power.
What is meant by 3 phase current?
Three-phase power provides three alternating currents, with three separate electric services. Each leg of alternating current reaches a maximum voltage, only separated by 1/3 of the time in a full cycle. In other words, the power output of a three-phase power remains to be constant, and it never drops into zero.
What is meant by line current?
Line current is the measured amount of direct current flowing in a pipeline. It is an indicator of the degree of reactivity and corrosion experienced on the pipeline’s surface.
How do you find line current and voltage?
Phase voltage to line voltage calculator: Line voltage is V(L-L) in volts equal to root 3 times of the phase voltage V(L-N) in volts. Example: What is the line voltage of the delta connected system whose phase voltage is 240 Volts. V(L-L) = 240 x 1.732 = 415 Volts. V(L-L) = 415 Volts.
What is line and phase voltage?
The conductors between a voltage source and a load are called lines, and the voltage between any two lines is called line voltage. The voltage measured between any line and neutral is called phase voltage. For example, for a 208/120 volt service, the line voltage is 208 Volts, and the phase voltage is 120 Volts.