发明名称 |
Revenue meter with power quality features |
摘要 |
Power quality detection, monitoring, reporting, recording and communication in a revenue accuracy electrical power meter is disclosed. Transient events are detected by monitoring the wave shape of the electrical power and comparing deviations to a known threshold. Sags and Swells are detected by computing root mean square value over a rolling window and comparing the computed value with a known threshold. Harmonic frequencies and symmetrical components are quantified by a known algorithm and compared with a known threshold. Incoming waveforms are stored to memory. All recorded and computed data is moved to non-volatile storage via direct memory access transfer in the event that a power quality event jeopardizes the operating power of the meter. Further, the meter provides a power supply utilizing high and low capacitive storage banks to supply sufficient energy to survive short duration power quality events which jeopardize the meter's operating power.
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申请公布号 |
US2006066456(A1) |
申请公布日期 |
2006.03.30 |
申请号 |
US20050208926 |
申请日期 |
2005.08.22 |
申请人 |
JONKER RENE T;PRZYDATEK PIOTR B;GUNN COLIN N;TEACHMAN MICHAEL E;ANTONIOU CONSTANTINE A |
发明人 |
JONKER RENE T.;PRZYDATEK PIOTR B.;GUNN COLIN N.;TEACHMAN MICHAEL E.;ANTONIOU CONSTANTINE A. |
分类号 |
G08C15/06;G01R21/133;G08B23/00 |
主分类号 |
G08C15/06 |
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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