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1. (WO2018202945) SYSTEM FOR PREVENTING GAS BUBBLES IN OIL FLOW TO ENTER A HIGH-VOLTAGE DEVICE AND A METHOD FOR PREVENTING GAS BUBBLES TO ENTER A HIGH-VOLTAGE DEVICE

Pub. No.:    WO/2018/202945    International Application No.:    PCT/FI2018/050304
Publication Date: Fri Nov 09 00:59:59 CET 2018 International Filing Date: Fri Apr 27 01:59:59 CEST 2018
IPC: B01D 19/00
H01F 27/12
Applicants: VAISALA OYJ
Inventors: VIRTANEN, Sami
Title: SYSTEM FOR PREVENTING GAS BUBBLES IN OIL FLOW TO ENTER A HIGH-VOLTAGE DEVICE AND A METHOD FOR PREVENTING GAS BUBBLES TO ENTER A HIGH-VOLTAGE DEVICE
Abstract:
The invention relates to a system (10) for preventing gas bubbles in oil flow to enter a high-voltage device (40), which system (10) is located in flow direction of the oil before the high-voltage device (40) and comprises a gravitational gas bubble filter (11) in which velocity of the oil flow is decreased by an enlargement of space for the oil flow and in which the gas bubbles in the oil are separated from the oil flow based on the effect of gravity. The invention also relates to a method for preventing gas bubbles in oil flow to enter a high-voltage device (40), in which method velocity of the oil flow is decreased by an enlargement of space for the oil flow and the gas bubbles of the oil flow are separated from the oil flow based on the effect of gravity.