| 发明名称 |
LOAD TAP CHANGER |
| 摘要 |
A method of switching taps by an on-load tap changer includes providing at least two fingers each comprising an impedance and a mechanical switch. When first and second mechanical switches of the first and second fingers are closed, they provide a connection between the first and second impedances of the first and second fingers and a power terminal of the on-load tap changer. The on-load tap changer is triggered to shift at least one of the fingers from a first tap to a second tap of the on-load tap changer when a tap change signal is received. A solid state switch connected between the first and second impedances is switched on to commutate a current from the first finger to the second finger during the tap change operation. |
| 申请公布号 |
US2015162144(A1) |
申请公布日期 |
2015.06.11 |
| 申请号 |
US201314099155 |
申请日期 |
2013.12.06 |
| 申请人 |
General Electric Company |
发明人 |
Panosyan Ara;Baerthlein Eva-Maria;Schramm Simon;Schroeder Stefan;Smith, JR. Malcolm Graham;Wijekoon Piniwan Thiwanka Bandara |
| 分类号 |
H01H9/00 |
主分类号 |
H01H9/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A method of switching taps by an on-load tap changer, the method comprising:
providing at least two fingers each comprising an impedance and a mechanical switch, wherein when the first and second mechanical switches of the first and second fingers are closed, they provide a connection between the first and second impedances of the first and second fingers and a power terminal of the on-load tap changer; triggering the on-load tap changer to shift at least one of the fingers from a first tap to a second tap of the on-load tap changer when a tap change signal is received; wherein the first finger breaks a contact with the first tap and then makes a contact with the second tap; switching on a solid state switch connected between the first and second impedances to commutate a current from the first finger to the second finger during the tap change operation. |
| 地址 |
Schenectady NY US |
