Water cooling systems of mercury-arc rectifiers

This report is intended as a guide on the design, application, and operation of water cooling systems for mercury-arc rectifiers. Its contents are based on the accumulated experience acquired by rectifier manufacturers and users over many years. The report deals with the various engineering and operating aspects of rectifier cooling systems. Several types of water cooling systems are described, and their application is discussed. The various factors influencing corrosion are reviewed. The characteristics of cooling waters are discussed and recommendations are given on the chemical treatment of coolants, the application of antifreeze solutions, and the maintenance requirements of cooling systems. The results of a survey on the operation and maintenance of cooling systems in representative rectifier installations are also included.