Desi Engineer..

Fault Passage Indicator . In other words it is also called as:- Fault sensor indicator . Line fault Indicator. A fault indicator is a divice which provides visual or remote indication of a fault on the electrical power system.It is also called a faulted circuit indicator.(FCI). It is used to detect fault and its location by the use of RSU of overhead and underground electrical lines fault. RANGE :- Short~Circuit Trip Current (Phase to Phase): Adjustable: 100/200/300/400/500/600/700/800/900/1000/1100/1200 A (110%) ** Earth-Fault Trip Current (Phase to Ground) : Adjustable: 10/20/30/40/60/80/100 A (¢10%) ** Short-circuit Response Time: Adjustable: 40/60/80/100/120/160/200/240 ms (+-100mSec) Earth Fault Response Time: Adjustable: 40/60/80/100/120/160/200/240 ms (+-100mSec) FEATURES :- Programmable Earth fault pickup level (wide range 10A to 100A) Indication of earth-fault by blinking of Earth-fault LED Programmable response delay for Earth-fault Up-to Two potential free contac...

MATERIAL USED FOR MANUFACTURING :- 1.clay. 2. Quartz . 3. Alumina . 4. Feldspar . These are covered with a smooth graze to shed water. INSULATORS are made from porcelain rich ion alumina are used where high mechanical strength required. PORCELAIN has a diectric  strength of about 4-10 kV/mm.  An INSULATOR is a material that does not conduct electrical current. Insulating materials include paper, plastic, rubber, glass and air. Vacuum is also an insulator, but is not actually a material. Most electrical conductors are covered by insulation. Magnet wire is coated with an extremely thin layer of insulation so that more turns or larger wire may be used in the winding of transformers etc. Insulators are generally rated at hundreds of volts, but some that are used in power distribution are rated as high as hundreds of thousands of volts. Insulators support and/or keep electrical conductors from making unintended contact with each other. USES Insulators  are us...