Title :
Ramapo tests: results from streaming current monitoring using a Nilsson plate and an absolute charge sensor
Author :
Nilsson, Stig ; Zahn, Markus ; Lindgren, Stan
Abstract :
Static electrification of transformers was identified in the late 1970s as a potential cause of failure of large forced cooled transformers. R&D spanning more than 20 years has led to an understanding of the conditions under which transformers may have the highest risk of failure. Tests conducted by EPRI and ConEdison at ConEd´s Ramapo substation over a three-year period has demonstrated that static electrification is detectable and conditions under which static electrification arises are repeatable. This paper presents static electrification data from a plate sensor and an absolute charge sensor
Keywords :
charge measurement; cooling; electric charge; electric current measurement; electric sensing devices; monitoring; power transformer testing; static electrification; substations; ConEdison; EPRI; Nilsson plate; Ramapo substation; absolute charge sensor; electrokinetic activity; energised transformer tests; forced cooled transformers; static electrification; streaming current monitoring; substation; Current measurement; Moisture; Monitoring; Oil insulation; Petroleum; Power transformer insulation; Power transformers; Substations; Testing; USA Councils;
Conference_Titel :
Transmission and Distribution Conference, 1999 IEEE
Conference_Location :
New Orleans, LA
Print_ISBN :
0-7803-5515-6
DOI :
10.1109/TDC.1999.756170
