Tandem-chamber charge density monitor

Author

Nelson, J.K. ; Lee, M.J.

Author_Institution

Dept. of Electr. Power Eng., Rensselaer Polytech. Inst., Troy, NY, USA

Volume

25

Issue

2

fYear

1990

fDate

4/1/1990 12:00:00 AM

Firstpage

399

Lastpage

404

Abstract

A device that is capable of measuring the charge density carried by an insulating fluid is described. The monitor relies on the principle of charge relaxation in two tandem chambers in such a way that the measurement is independent of residence and relaxation times. It is robust, has no moving parts, and is also able to monitor the conductivity of the fluid in applications for monitoring the streaming electrification in power transformers. Performance, accuracy, and applications of the device are outlined

Keywords

charge measurement; electrical conductivity measurement; insulating oils; transformer insulation; accuracy; applications; charge density monitor; charge relaxation; conductivity monitoring; flow independent measurement; insulating fluid charge density; no moving parts; relaxation time independent measurement; robust monitoring system; streaming electrification monitoring; tandem chamber monitor; two tandem chambers; Charge measurement; Conductivity; Current measurement; Density measurement; Dielectric measurements; Monitoring; Power measurement; Power transformers; Pumps; Robustness;

fLanguage

English

Journal_Title

Electrical Insulation, IEEE Transactions on

Publisher

ieee

ISSN

0018-9367

Type

jour

DOI

10.1109/14.52390

Filename

52390