Converter valves for HVDC applications
The performance requirements, cost, ease of installation, reliability, and temperature control of mercury arc valves and thyristor valves for HVDC applications are discussed and compared. Thyristor valves are now exclusively offered for new hvdc applications by all major suppliers. The choice of cooling medium, i.e., air, de-ionized water, oil (or possibly Freon in the future) must be made on considerations of costs, space and environmental impact. The conventional mercury arc valve, although capable of further development, is not now considered for future hvdc schemes. However, it could still be applied with considerable advantages in certain applications. It is possible that the liquid mercury plasma valve with advantages of cost, space and losses, could also be a competitor in the future.
- Research Organization:
- GEC Switchgear, Ltd., Stafford, Eng.
- OSTI ID:
- 5148472
- Journal Information:
- Transm. Distrib.; (United States), Journal Name: Transm. Distrib.; (United States) Vol. 30:2; ISSN TRDIA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
24 POWER TRANSMISSION AND DISTRIBUTION
COMPARATIVE EVALUATIONS
CONTROL
COST
DC SYSTEMS
ELECTRICAL EQUIPMENT
ELECTRONIC CIRCUITS
EQUIPMENT
HVDC SYSTEMS
INVERTERS
PERFORMANCE
POWER SYSTEMS
POWER TRANSMISSION LINES
RECTIFIERS
RELIABILITY
SEMICONDUCTOR DEVICES
SWITCHING CIRCUITS
TEMPERATURE CONTROL
THYRISTORS