The method comprises the following steps: connecting a terminal combination transfer device, which comprises a first transfer switch connected with a high-voltage output single-phase terminal group and a high-voltage input three-phase terminal group as well as a second transfer switch connected with a low-voltage output single-phase terminal group and a low-voltage input three-phase terminal group, between a voltage ratio bridge and a tested transformer according to the combined connecting positions of corresponding transformer terminals during a test, operating the first transfer switch and the second transfer switch to carry out phase change or combine the high-voltage input three-phase terminal group and the low-voltage input three-phase terminal group, and then operating the voltage ratio bridge to carry out the test and comparing the data obtained through the test with the theoretical calculation result obtained through a voltage ratio calculation formula with the allowable error meeting national standards. The invention discloses a method for testing voltage ratio of a transformer with a phase-shifting winding. 238000005516 engineering process Methods 0.000 description 1.238000007796 conventional method Methods 0.000 description 1.239000002131 composite material Substances 0.000 description 1.239000012467 final product Substances 0.000 claims description 2.238000009530 blood pressure measurement Methods 0.000 claims description 4.238000005259 measurement Methods 0.000 claims description 5.238000010998 test method Methods 0.000 claims description 9.230000001264 neutralization Effects 0.000 claims description 11.
238000006243 chemical reaction Methods 0.000 claims description 16.238000004804 winding Methods 0.000 title claims abstract description 20.Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.) Filing date Publication date Application filed by China XD Electric Co Ltd filed Critical China XD Electric Co Ltd Priority to CN2009100229819A priority Critical patent/CN101576583B/en Publication of CN101576583A publication Critical patent/CN101576583A/en Application granted granted Critical Publication of CN101576583B publication Critical patent/CN101576583B/en Status Active legal-status Critical Current Anticipated expiration legal-status Critical Links Original Assignee China XD Electric Co Ltd Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.) ( en Inventor 姚红阳 孙建远 Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.) Active Application number CN2009100229819A Other languages Chinese ( zh) Google Patents CN101576583B - Method for testing voltage ratio of transformer with phase-shifting winding CN101576583B - Method for testing voltage ratio of transformer with phase-shifting winding
0 kommentar(er)
