Results 161 to 170 of about 917 (210)

The application of porcelain to strain insulators

Proceedings of the American Institute of Electrical Engineers, 1910
Porcelain possesses some qualities which make it a very good material for line insulators and especially strain insulators. It can be moulded and worked into almost any desired form or size; when made of proper materials and properly burned it has practically no depreciation when exposed to the weather, acid fumes or gases, which sometimes create so ...
openaire   +1 more source

Overhead Electrolysis and Porcelain Strain Insulators

Transactions of the American Institute of Electrical Engineers, 1915
There is a slight leakage of current from trolley wires to earth through insulated supports on all electrical overhead construction, which if not checked permits a flow of current which gives rise to electrical separation of water into oxygen and hydrogen.
openaire   +2 more sources

Porcelain for High Voltage Insulators

Transactions of the American Institute of Electrical Engineers, 1936
In this paper the mechanical failure of porcelain is discussed with special reference to 3 seldom recognized characteristics: the effect of the porcelain surface on the strength, the apparent anomalous distribution of individual mechanical test values, and the effect of time on mechanical strength.
openaire   +1 more source

Porcelain insulators in electrostatic precipitator

Journal of Electrostatics, 2015
Abstract Electrostatic precipitators (ESPs) are commonly the most used filtration technology at industrial environments considering that ESPs allow to have a high dedusting efficiency. ESP insulators are key components in a precipitator inasmuch as if they do not work properly, the efficiency decreases quickly, and even having an inadequate ...
Fernando Menéndez, Alberto Gómez, Francisco Voces, Virgilio García   +3 more
openaire   +1 more source

A new porcelain post insulator

Electrical Engineering, 1934
A new porcelain post insulator for transmission lines, which is free from radio effect at its operating voltage, is described in this paper. Capacitance measurements are utilized to determine and rate the radio characteristics. Other points of design are described, such as improved leakage path to resist arcing in contaminated atmosphere, greater ...
openaire   +1 more source

Temperature Researches of Porcelain Insulator

Advanced Materials Research, 2013
When porcelain insulator operates in a harsh environment for a long time, it will cause leakage current increase, and lead to heating phenomenon. As a result, the temperature of porcelain insulator can be changed, which probably due to crack, breakdown or other factors.
Cheng Jun Zhao, Chuan Li, Xu Zhang, Zhen Gang Zhao, Ying Na Li, Tao Xie   +5 more
openaire   +1 more source

The testing of porcelain insulators

Journal of the Institution of Electrical Engineers, 1929
The paper discusses the technique of porcelain insulator testing. The ground covered includes the usual electrical and mechanical tests called for in the various national specifications, and also special tests of more recent origin.
openaire   +1 more source

Development of the Porcelain Insulator

Transactions of the American Institute of Electrical Engineers, 1931
Porcelain insulators have been manufactured and used for the transmission of high-tension electric power for forty years. The first designs were of the single-piece and multipart cemented pin type. Necessity for higher safety factors against flash-over and increase in operating voltages demanded a rapid increase in the size of the insulators.
openaire   +1 more source

Machine molding of porcelain pin insulators

Glass and Ceramics, 1999
A new method for molding porcelain pin insulators used as insulation for cables of low-voltage power lines is suggested. A machine for molding TF-20 inslators is described. A set of technological equipment for mini-production units of low and medium capacity is presented. The technical parameters of the set of machinery are given.
V. A. Aleko, M. V. Popov
openaire   +1 more source

Switching-Surge Insulation Level of Porcelain Insulator Strings

IEEE Transactions on Power Apparatus and Systems, 1964
A quantitative research report is made here, based on tests of EHV (extra-high-voltage) insulator strings. Impulse, switching-surge, and a-c tests on vertical, horizontal, and 45-degree V-strings were carried out, using both positive and negative unidirectional impulses and 250- to 3,250-?sec (microsecond) switching surges.
D. E. Alexander, E. W. Boehne
openaire   +1 more source