A Recent Development in High-Current Mercury Arc Rectifiers

Author

Reid, E.H. ; Herskind, C.C.

Author_Institution

General Electric Co., Schenectady, N. Y.

Volume

52

Issue

2

fYear

1933

fDate

6/1/1933 12:00:00 AM

Firstpage

392

Lastpage

396

Abstract

A single-unit mercury arc rectifier of 3,000-kw rating at 600 volts is discussed as regards design and operation. A typical installation, that of the 8th Avenue subway of the New York Board of Transportation, is described where units of this size have been advantageously applied to the sub-surface substations. An important characteristic of the rectifier unit is its operating temperature which is materially higher than heretofore used in general practise. Tests show that up to a certain temperature the arc drop is reduced as the temperature is raised. This indicates that the maximum efficiency is obtained by operating at a high temperature. Among other advantages of a high operating temperature is the increased cooling efficiency. The rectifier is of the thyratron type with insulated grids surrounding the anodes. In addition to straight rectification, it is expected that it will find many applications in the future where thyratron control is desired.

Keywords

Arc discharges; Cooling; Insulation; Mercury; Rectifiers; Substations; Temperature; Thyratrons; Transportation;

fLanguage

English

Journal_Title

American Institute of Electrical Engineers, Transactions of the

Publisher

ieee

ISSN

0096-3860

Type

jour

DOI

10.1109/T-AIEE.1933.5056321

Filename

5056321