发明名称 |
POWER LOAD IMBALANCE DETECTION DEVICE AND POWER LOAD IMBALANCE DETECTION METHOD |
摘要 |
<p>First through third phase voltage level determining devices (30-32) output signals, respectively, when any of the first through third phase impedance values fall below a reference value among the three phase voltages representing transmission grid voltages. When an output signal is received from all of the determining devices, a grid-fault detecting AND circuit (33) outputs a grid fault detection signal indicating that a major grid fault has occurred among the various types of grid faults that may occur. A rate-of-change detector (19) outputs a rate-of-change detection signal when the change in the value of a generator end current (18) exceeds a given setting. A logic circuit (46), which includes an OR circuit (23) and an AND circuit (24), outputs inflowing steam volume reduction signals (26) based on grid fault detection signals or rate-of-change detection signals.</p> |
申请公布号 |
WO2013102990(A1) |
申请公布日期 |
2013.07.11 |
申请号 |
WO2012JP08404 |
申请日期 |
2012.12.27 |
申请人 |
KABUSHIKI KAISHA TOSHIBA;IKEJIRI, SATOSHI;ISHIKAWA, TAKASHI;KATAOKA, KAZUYOSHI |
发明人 |
IKEJIRI, SATOSHI;ISHIKAWA, TAKASHI;KATAOKA, KAZUYOSHI |
分类号 |
F01D15/10;F01D17/00;F01D21/00;F01D25/00;G01R31/02;H02H3/34;H02H3/40;H02J3/26 |
主分类号 |
F01D15/10 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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