Table of Contents
- 1 What is the permissible voltage limit of voltage in the distribution line?
- 2 What is the permissible variation in voltage?
- 3 What is the permissible limit of percentage voltage variations allowed in the consumer’s terminals?
- 4 What is permissible value of single phase voltage is in percentage?
- 5 How do you calculate voltage drop in a transmission line?
What is the permissible voltage limit of voltage in the distribution line?
The standard voltage ( in India ) for low and medium line distribution was 230 V for single phase and 230 / 400 V for three phase system but due to economic advantage IEC recommended 240 V for single phase and 240 / 415 V for three phase system voltage with ± 6\% voltage variation.
What is the permissible voltage variation in transmission and distribution system is?
(D) 0.01 microF. (D) 132 kV. (D)± 25\%….90.
| Q 1- 15 | Q 16- 30 |
|---|---|
| Q 91- 105 | Q 106- 120 |
| Q 121- 135 | Q 136- 150 |
| Q 151- 172 |
What is the permissible variation in voltage?
As per IE rules the permissible variation of voltage at the consumer end is upto ±6\%. In case of low or medium voltage i.e. upto 33 kV , the permissible variation of voltage is ±6\% to ±9\%. In case of high voltage supply i.e. more than 33 kV, the permissible variation of voltage is more than ±9\%.
What percentage voltage drop is acceptable?
5\%
4) in the National Electrical Code states that a voltage drop of 5\% at the furthest receptacle in a branch wiring circuit is acceptable for normal efficiency. In a 120 volt 15 ampere circuit, this means that there should be no more than a 6 volt drop (114 volts) at the furthest outlet when the circuit is fully loaded.
What is the permissible limit of percentage voltage variations allowed in the consumer’s terminals?
To this end, the statutory limit of voltage variation is ±6 percent of declared voltage at consumer terminals.
What is permissible voltage drop if declared voltage is 400 V?
Allowable Voltage Drops: The National Electrical Code recommends the voltage drop should not be exceeded more than 3 \% from the source to utility.
What is permissible value of single phase voltage is in percentage?
If the supply is single-phase at the usual level of 240 V, this means a maximum volt drop of 4\% of 240 V which is 9.6 V, giving (in simple terms) a load voltage as low as 230.4 V. For a 415 V three-phase system, allowable volt drop will be 16.6 V with a line load voltage as low as 398.4 V.
How is transmission line voltage calculated?
How Mathematical formula: how do you choose Transmission Voltage for underground cables both (AC and DC)? V=5.5* (0.62*L + 3*P/100)^(1/2) .
How do you calculate voltage drop in a transmission line?
To calculate voltage drop:
- Multiply current in amperes by the length of the circuit in feet to get ampere-feet. Circuit length is the distance from the point of origin to the load end of the circuit.
- Divide by 100.
- Multiply by proper voltage drop value in tables. Result is voltage drop.