Harmonic protection method for capacitor bank
US8810976B2 · kind B2 · utility
1Cited by
2References
3Claims
0Family size
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Key dates
| Filing date | Jan 30, 2011 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Jun 1, 2031 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH02H7/16
- WIPO fieldElectrical machinery, apparatus, energy
- WIPO sectorElectrical engineering
Abstract
A harmonic protection method for a capacitor bank uses a harmonic protection apparatus, which includes a CPU unit, a current and voltage sampling unit, and a protection device. The CPU unit obtains effective value I1 of fundamental wave current of the capacitor bank, and effective value In of the n-th harmonic wave current of the capacitor bank, where n is harmonic order and ranges from 2 to ∞, and calculates the true effective value I of current of the capacitor bank by
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.