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
Voltage regulator: A voltage regulator is an electrical regulator intended to automatically keep a constant voltage level. A voltage regulator is an instance of a negative fee

Singles Phase  Half wave Controlled Rectifier  with RL Load When gate pulses are applied to the thyristor  at output voltage  v0 follows the input voltage  v s ( = V m sin ) s


Q. Why a common collector amplifier is called an emitter follower?         When the input voltage goes through its positive half cycle, the output voltage is also seen to go th

Q. Input offset voltage of operational amplifier? When both inputs are tied to ground, i.e., both differential-mode and common-mode inputs are zero, the output should be zero.

Comparison of Analog-Modulation Systems The comparison of analog modulation systems (conventional AM, DSB SC, SSB SC, VSB, FM, and PM) can be based on three practical criteria:

Q. Compare in-channel signalling with common channel signalling? Network wide signalling also involves end to end signalling between originating exchange and the terminating ex

Q. Accelerator and Investment? Accelerator, Investment: Investment spending stimulates economic growth that consecutively stimulates further investment spending (as businesses

Explain what is Linker? Linker: A huge program is divided in smaller programs termed as modules. A linker is a program that links smaller programs together to by a large prog

Program counter holds the address of also the first byte of the next instruction to be fetched for implementation or the address of the next byte of a multi byte instruction, which