대한전기학회논문지 (The Transactions of the Korean Institute of Electrical Engineers)
- 제41권3호
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- Pages.227-236
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- 1992
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- 0254-4172(pISSN)
계기용 변성기를 포함한 거리계전기의 동특성 해석
Dynamic Response Characteristics of Distance Relay Including the Instrumental Devices
초록
In this paper, a simulation program of relaying system including the CT and CPD ( capacitive potential device ) is developed to study the effect of its operation under various system conditions. To deal with the dynamic characteristics of relaying system, state space technique is applied, and then the state equations of CT, CPD and mho distance relay are constructed. Also the dynamic response characteristics of overall relaying system is verified by digital simulation. Since the proposed model is capable of taking arbitrary input waveforms from EMTP in analyzing its dynamic responses, the effects of CT-saturation and CPD-subsidence transient characteristics on the operating points of who distance relay can be accurately prodicted. It gives more effective results, compared with the model without considering those characteristics by checking the exprimental data.
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