Factors of contributing to losses in service cables, Electrical Engineering

Factors of Contributing to Losses in Service Cables

1. Tapping of underground service cables: The service cables must be visible so that tapping of cables can be detected. Underground service cables should be avoided as they are not visible for routine inspection.

2. Size of the cable: Improper selection of cable size results in increased losses and lower voltage at the consumer premises leading to revenue loss.

3. Bimetallic connections: Generally, the LT conductor is of aluminium while at many places the service cable is of copper. Connecting aluminium and copper creates a bi-metallic junction leading to corrosion, high resistance and failure. This should be avoided.

4. Connections:  A Loose connections of the service cables can result in sparking and is another source of avoidable energy loss.

5. Guarding against Losses due to High Impedance Faults: The high impedance faults result in avoidable technical loss and may also cause safety hazards in overhead system. High impedance faults are often caused due to trees touching the lines and bird nesting, etc. Regular line patrolling, tree trimming and removing bird nests are needed to prevent such faults.

In underground cables high impedance faults may occur due to insulation pitting, breakdowns from digging, rodent infestation or ageing of cable insulation, formation of carbon trees, etc. Locating and repairing underground faults requires specialized equipment and training.

Posted Date: 2/6/2013 6:12:23 AM | Location : United States







Related Discussions:- Factors of contributing to losses in service cables, Assignment Help, Ask Question on Factors of contributing to losses in service cables, Get Answer, Expert's Help, Factors of contributing to losses in service cables Discussions

Write discussion on Factors of contributing to losses in service cables
Your posts are moderated
Related Questions
A forward converter has the following parameters: input source voltage V s = 100 V, N 1 /N 2 = N 1 /N 3 = 1, magnetizing inductance L m = 5 mH, output inductor L o = 200 μH, C

Question: (a) For a CD quality sound, what is the bit depth used and give the amplitude's levels and the dynamic range of this sound quality (b) In audio technology, the dec

Classification of Solids into Insulators, Semiconductor and Conductors A solid can conduct electric current if the electrons can move in it. This is possible only when an ener

Q. What do you mean by Blocking Probability? Blocking Probability:Blocking probability P is defined as probability that all the servers in system are busy. When all servers are

Q. What is Non-Folded Network? Non-Folded Network: In a switching network, all outlet/inlet connection may be used for inter exchange transmission. In such a case, exchange d

Calculate the maximum length of an optical fibre that exhibits 0.8dB/km attenuation if the optical output is 10mW and the power launched at the input is 150mW. [Hint: Loss, L=10 lo

Ask question #Minimum 100 words accepteddelay line in cro#

Explain Load Flow Analysis The method commonly used for load flow analysis is the nodal analysis. The nodal analysis method is given in many books on circuit theory and is base

Uses of FET IGBTs (Insulated-gate bipolar transistor) see application in switching internal combustion engine ignition coils, in which fast switching and voltage blocking cap

What is assembler? Assembler: An assembler or macro-assembler usually forms a part of the operating system. This translates an assembly language program into machine language