Dry transformer having gas-liquid dual phase heat radiation loop

• Main Authors: HUANG ZHENCHENG, HE ZHENHUI
• Format: Patent
• Language: Chinese; English
• Published: 17.06.2009
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; INDUCTANCES; MAGNETS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES; TRANSFORMERS

The utility model discloses a dry-type transformer with a steam-liquid two-phase heat radiating loop. The dry-type transformer comprises an iron core and at least one coil pack rolled on the iron core. The dry-type transformer is provided with at least one steam-liquid two-phase heat radiating loop which comprises an evaporator arranged in the area of the coil pack, a condensator arranged at the outside of the dry-type transformer, a steam-phase pipe connected between a steam-phase outlet of the evaporator and the steam-phase inlet of the condensator, a liquid-phase pipe connected between the liquid-phase outlet of the condensator and the liquid-phase inlet of the evaporator, and steam-liquid two-phase working medium circulating in the steam-liquid two-phase heat radiating loop. The dry-type transformer adopts evaporation-condensation mode directly inside the loop and converts part of the heat into steam kinetic energy and liquid potential energy through evaporation to drive or partly drive the loop to circul