Poly Fuse

Polyfuse is a new standard for circuit protection. It is resettable. Many manufacturers also call it polyswitch or multifuse. Polyfuses are not fuses but polymeric positive temperature co-efficient (PPTC) thermistors.

Current limiting can be accomplished by using resistors , fuses , switches or positive temperature co-efficient devices. Resistors are rarely an acceptable solution because the high power resistors that are usually required are expensive. One-shot fuses can be used, but they might fatigue, and they must be replaced ....etc

[:=Read Full Message Here=:]

Polyfuses is a new standard for circuit protection. It is re-settable by itself. Many manufactures also call it as Polyswitch or Multifuse. Polyfuses are not fuses but Polymeric Positive temperature Coefficient Thermistors (PPTC). We can use several circuit protection schemes in 'power supplies to provide protection against fault condition and the resultant and over temperature damage. Current can be accomplished by using resistors, fuses, switches, circuit breakers or positive temperature coefficient devices.Resistors are rarely an acceptable ....etc

[:=Read Full Message Here=:]

I have to presenting a seminar on the topic of air brake in railway,so please give me the PDF of seminar report on air brake in indian railway. ....etc

[:=Read Full Message Here=:]

INTRODUCTION
Circuit Breaker is one of the most important equipment in the power system. This is because of the function of the equipment itself which is, the ability to close a circuit or to break the circuit during maintenance work or when there is fault in the system without getting damaged.
A circuit breaker is exactly what its name implies. It breaks when it is overloaded with current. A circuit breaker is an electrical device used in an electrical panel that monitors and controls the amount of amperes ( ....etc

[:=Read Full Message Here=:]

AUTOMATIC TEMPERATURE CONTROL IN VACUUM BRAZING FURNACE USING P.L.C

ABSTRACT
The main objective of this project is to maintain & control temperature uniformly of the two zones in vacuum brazing furnace and braze similar or dissimilar components using certain chemicals, for the given specifications of a job
Brazing alloys used for brazing the components of gas turbines and aerospace applications contain nickel as the base material. Nickel has highest affinity for oxygen. Incase if components are brazed using nickel ....etc

[:=Read Full Message Here=:]

Poly Fuse

Polyfuse is a new standard for circuit protection. It is resettable. Many manufacturers also call it polyswitch or multifuse. Polyfuses are not fuses but polymeric positive temperature co-efficient (PPTC) thermistors.

Current limiting can be accomplished by using resistors , fuses , switches or positive temperature co-efficient devices. Resistors are rarely an acceptable solution because the high power resistors that are usually required are expensive. One-shot fuses can be used, but they might fatigue, and they must be replaced ....etc

[:=Read Full Message Here=:]

A Mini project On
COMPLETE SELFPROTECTION TECHNOLOGY TO MINIMIZE THE FAILURES OF DISTRIBUTION TRANSFORMER
Presented By :
Mr. P. Vinay kumar 06M21A0257
Mr. K. Susheel kumar 06M21A0251
Mr. G.Manikanta 06M21A0210
ELECTRICAL AND ELECTRONIC ENGINEERING

PROFILE OF VIJAI ELECTRICALS
Vijai Electricals is a 1300 Crore Company with an ISO 9001 Certification. It is the countrys largest manufacturer of Single Phase and Three Phase Oil Filled and Cast Resin Distribution Transformers (primary and secondary) upto 10 M ....etc

[:=Read Full Message Here=:]

....etc

[:=Read Full Message Here=:]

Workings of a Nuclear Reactor
• Reactor Basics
• PWR
• BWR
Key Reactor Power Terms
• Availability – Fraction of time over a reporting period that the plant is operational
– If a reactor is down for maintenance 1 week and refueling 2 weeks every year, the availability factor of the reactor would be
(365-3 * 7) / 365 = 0.94
Key Reactor Power Terms
• Capacity – Fraction of total electric power that could be produced
– If reactor with a maximum thermal power rating of 1000 MWt only opera ....etc

[:=Read Full Message Here=:]

Theory for brake test on a 3 phase induction motor
Pls try to provide this ..... ....etc

[:=Read Full Message Here=:]

Plz somebody give the page link for air brake system ppt ....etc

[:=Read Full Message Here=:]

Polyfuses is a new standard for circuit protection. It is re-settable by itself. Many manufactures also call it as Polyswitch or Multifuse. Polyfuses are not fuses but Polymeric Positive temperature Coefficient Thermistors (PPTC). We can use several circuit protection schemes in 'power supplies to provide protection against fault condition and the resultant and over temperature damage. Current can be accomplished by using resistors, fuses, switches, circuit breakers or positive temperature coefficient devices.Resistors are rarely an acceptable ....etc

[:=Read Full Message Here=:]