0
How do you calculate the voltage drop for 238 KW 3 phase 415 V and length of circuit is 20 meters?
Wiki User
∙ 15y ago
You need also to know the resistance of the cable. First you establish what the current of the load is. Then from that you calculate the wire size. From a wire size chart you find the wire resistance. Then use the formula I (squared) x R.
Wiki User
∙ 15y ago
Wiki User
∙ 15y agoDetermine from the motor name plate what the FLA is. Go to the code book and find the appropriate amperage and what wire size it suggests. Knowing the wire size and amperage go to the voltage drop section and use the formula and apply it to the cable length.
Add your answer:
Earn +20 pts
What is the cable size for 55 kva genset with cable length of 56 meters?
To answer this question the voltage of the genset is needed.
When you measure voltage with a voltmeter you must break open the circuit and connect the meters test leads in series with the other circuit components?
Sounds more like you're trying to measure resistance...
When It is required to calculate average voltage and when RMS voltage?
It is usually required in electrical examinations to make calculations. Simple answer to a complicated calculation. Remember, take peak to peak voltage and multiply by .707, the result being average voltage. This is the voltage that electrical test meters read.
Why isn't 7805 voltage regulator putting out 5v Its putting out 15.6v?
There could be a number of reasons. A 7805 has three pins: Voltage in, voltage out and an earth. If the earth is not tied to the earth reference (ground) of the circuit, the output will be held close to the input voltage. If there are no suppression capacitors on the inputs and outputs, high frequency oscillation can be present and at a level where some meters will read it as a DC shift. The IC may be damaged. It has a maximum input voltage of around 35V (dependent on the specific IC). Exceeding the input voltage doesn't do the IC any good at all. The other possibility is that the output side of the IC is being fed with a voltage from another part of the circuit. Keep taking the meter readings with the IC in circuit and out of circuit and one of these errors is likely to show up.
If you're installing a circuit that will contain receptacles in an industrial area and the first receptacle is more than 50 feet (15.24 meters) from the load center you should?
Connect the circuit to the appropriate size circuit breaker to meet the required amperage of the circuit. Turn the breaker on and use the circuit. Unless the circuit is of a very high ampacity, plus 200 amps, don't worry about voltage drop over 50 feet.
How do you calculate feet to meters?
Divide feet by 3.28084 to get the same length in meters. Multiply meters by 3.28084 to get the same length in feet.
What is the maximum length for twisted pair cable used in telephone circuit?
300 feet Answer I believe it is many miles, when used in a teleplone circuit. They use a large battery voltage for voice over the line. 100 meters if used in an ethernet environment.
How do you calculate square metre?
please tell me i have installed 500 square meter pipe that means how much length of pipe has been install To calculate square meters, multiply the length of the area in meters by the width in meters.
How do you calculate length into square meters?
You cannot. Length is only one dimension, square meters is two. Kinda like asking to convert square meters into time.
Calculate cubic meters?
Length x width x depth.
How much fencing will be needed to fence a property that is 78 meters long and 65 meters wide?
For a rectangle, calculate twice the length, plus twice the width.For a rectangle, calculate twice the length, plus twice the width.For a rectangle, calculate twice the length, plus twice the width.For a rectangle, calculate twice the length, plus twice the width.
How do you calculate linear meters from square meters?
This is an invalid conversion: square meters is a measure of area and meters is a measure of length or distance.
Why do you put the meters in the high voltage side in the short circuit test?
in the short circuit test we applied supply voltage on L.V side and short circuit the H.V side and connect the ammeter in H.V circuit to measure the short circuit current. with the help of s.c test we measure the copper losses in the transformers.
How to calculate the whole area of your house in meters square?
We can calculate the area by taking out the product of the length and the breadth of the house
How do you calculate the cable size for a run of 30 meters?
to calculate the cable size of a run of 30 meters long you first will have to know the current of the appliance use the voltage drop formula V d = (mVxIxL)/1000 once the voltage drop is less than 2.5% of the nominal voltage, the cable should be upsize.
How do you convert circumference to meters?
A circumference is just a length, it can be in meters, feet, yards, or whatever unit you use to measure or calculate it.
How do you calculate how many square meters the the 3x4 meters rug?
For any rectangle, if you multiply the length times the width, you get the area.
