水电与新能源
水電與新能源
수전여신능원
HYDROPOWER AND NEW ENERGY
2014年
7期
47-50
,共4页
吕庭钦%林峰%张兰英
呂庭欽%林峰%張蘭英
려정흠%림봉%장란영
小电源%扩大内桥%备自投%改进措施
小電源%擴大內橋%備自投%改進措施
소전원%확대내교%비자투%개진조시
small power source%expanded bridge connection%backup power automatic switching%improvement meas-ures
备自投装置正确动作是提高供电可靠性的重要措施，通过工程实例，分析了带小电源的三线两变扩大内桥接线备自保护动作机理及存在问题，提出改进措施，实现了带小电源的三线两变扩大内桥接线备自投装置的正确动作，提高了变电站的供电可靠性。
備自投裝置正確動作是提高供電可靠性的重要措施，通過工程實例，分析瞭帶小電源的三線兩變擴大內橋接線備自保護動作機理及存在問題，提齣改進措施，實現瞭帶小電源的三線兩變擴大內橋接線備自投裝置的正確動作，提高瞭變電站的供電可靠性。
비자투장치정학동작시제고공전가고성적중요조시，통과공정실례，분석료대소전원적삼선량변확대내교접선비자보호동작궤리급존재문제，제출개진조시，실현료대소전원적삼선량변확대내교접선비자투장치적정학동작，제고료변전참적공전가고성。
Correct action of the backup power automatic switching device is important for the reliability of power supply . In this paper , the action mechanism and existing problems are analyzed for the backup power automatic switching scheme in three-wire two-transformer expanded bridge connection with small power source .Improvement measures are proposed to ensure correct actions of the backup power automatic switching device , which could improve the power sup-ply reliability of the transformer substation .
