Preventing leakages at insulators, Electrical Engineering

Assignment Help:

Preventing Leakages at Insulators

Leakages at insulators, cracking of insulators and flashover across insulators frequent cause outages and give output in loss of revenue. Pollution is a major cause for this damage. Because of pollution a deposit is created on the insulator surface. The surface layer might absorb moisture and become semi-conducting causing leakage currents to flow. The surface gets heated and leads to an avalanche causing a flashover and cracking of insulator.

Use of appropriate material for insulators (like porcelain, glass and etc. depending on the nature of pollution in the local area) and designed protected creepage path helps in decreasing insulator failure. Preventive actions are regular inspection and hot line washing, the latter being particularly appropriate for coastal areas and areas along with chemical industries.


Related Discussions:- Preventing leakages at insulators

Explain pnp transistor circuit, Explain pnp transistor circuit . pnp tr...

Explain pnp transistor circuit . pnp transistor: A transistor consist of  three terminals. In this pnp transistor there is two blocks of p- type semiconductors that are separa

Rst restart instructions , RST Restart Instructions Restart instructio...

RST Restart Instructions Restart instructions  are one byte call instructions. Called location for each restart instruction is  predefined on page 0 ( read only memory). They

Applications of hall effect, Applications of Hall Effect: (i)  To dete...

Applications of Hall Effect: (i)  To determine whether semiconductor is of n type or p type. (ii) To determine carrier concentration. (iii) Measurement of carrier mobili

Various steps in designing the counter, Design a mod-15 counter. Explain th...

Design a mod-15 counter. Explain the various steps in designing the counter

Diode transistor logic gate, A circuit realization of a NAND gate will now ...

A circuit realization of a NAND gate will now be developed. By connecting NAND gates together in various ways, one can synthesize other gates and flip-flops. Thus in principle, a s

Explain basic working of transport layer, Q. Explain basic working of Trans...

Q. Explain basic working of Transport Layer? It is responsible for establishing a network independent communication path appropriate for the specific terminal equipments (for exa

Use of a k map simplify the following boolean expressions, Q. With the use ...

Q. With the use of a K map, simplify the following Boolean expressions and draw the logic diagram.

Three-phase induction motor, Q. A 60-Hz, six-pole, wye-connected, three-pha...

Q. A 60-Hz, six-pole, wye-connected, three-phase induction motor, with the parameters R 1 = R 2 = 0.025  and Xl 1 = Xl 2 = 0.125 , is controlled by variable-frequency control

Get the equivalent inductance at terminal in circuit, Get the equivalent in...

Get the equivalent inductance at terminal in circuit: Acquire the equivalent inductance at terminal AB in circuit shown in Figure. Solution Inductances also follow the

Write Your Message!

Captcha
Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd