A Novel Line Protection Scheme for a Single Phase-to-Ground Fault Based on Voltage Phase Comparison

Ma, Jing; Yan, Xiaoli; Fan, Bo; Liu, Chang; Thorp, James S.

doi:10.1109/tpwrd.2015.2507600

Cited by 44 publications

(21 citation statements)

References 15 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…and [13]. For each test, Table 3 summarizes the measured ground R T (Ω), calculated fault resistances R F (Ω) and current I F (kA), the distance from which the relay identified the fault, the zones performed by the relay and the fault phase.…”

Section: Practical Schemementioning

confidence: 99%

Testing through Fall of Potential with High Current Injection in Grounding System in Transmission Line of 500 kV of Santo Antonio HPS

Araújo¹,

Trondoli²

2017

OALib

View full text Add to dashboard Cite

This paper presents the application of grounding resistance measurement by fall of potential with high current injection, applied to the Transmission Line (TL) of 500 kV of Santo Antonio Hydroelectric Power Station (HPS), located in the city of Porto Velho/RO, for the commissioning of the power house grounding system in Generation Group (GG2) and TL during construction of the referred project. Based on measurements obtained in field, computer simulations were performed to assess the effectiveness of the grounding system on future fault scenarios of the TL, as well as the suitability of relevant protection functions. The computer simulations are based on the model developed for TL 500 kV of GG2, and are performed using the PSCAD/EMTDC software, including the grounding values derived from the design of high current injection, according to (IEEE Std 80-2013). In order to attest the efficacy of both GG2 grounding system and TL from the HPS, COMTRADE files, obtained by the software, were used in the simulator Doble 6150 for the design of distinct fault conditions in a SEL-421 relay. Results indicate the correct functioning of relay SEL-421, corroborating the effectiveness of both grounding system and measurement method.

show abstract

Section: Practical Schemementioning

confidence: 99%

Testing through Fall of Potential with High Current Injection in Grounding System in Transmission Line of 500 kV of Santo Antonio HPS

Araújo¹,

Trondoli²

2017

OALib

View full text Add to dashboard Cite

show abstract

“…Currently, three methods are used to produce the line protection immune against the fault resistance; adaptively adjusting the setting value, compensation for the fault supplementary impedance caused by the resistance of fault, and using the fault characteristic of the fault resistance. For such a reason, the voltage phase information is used in reference , however, it does not provide protection for the double line to earth faults.…”

Section: Introductionmentioning

confidence: 99%

“…Besides, it has the advantages of being not affected by mutual coupling, current transformer (CT) saturation, load switching, unbalanced load switching, fault, and previous fault conditions, close up faults, remote end faults, and low inception time faults. For further verifying the proposed relay performance, a comparison is done with schemes proposed in the novel references .…”

Section: Introductionmentioning

confidence: 99%

“…Reference mentioned that it had the advantages of (i) being extremely helpful in practice as the operating time and setting meet the technical requirements of line protection; (ii) simple to be implemented due to the small calculation amount. The proposed relay has all the aforementioned advantages, in addition; it is faster.…”

Section: Introductionmentioning

confidence: 99%

“…The proposed relay has all the aforementioned advantages, in addition; it is faster. Reference identifies the fault located at 225 km within 19 ms while the proposed relay identifies the fault located at 297 km within 1.548 ms. The proposed relay is simple and is faster than the technique presented in reference …”

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Ultra‐High‐Speed Non‐Unit Protection and Fault Location for Parallel Transmission Lines Earth Faults

Mourad

Shehab-Eldin

2019

IEEJ Transactions Elec Engng

View full text Add to dashboard Cite

This article proposes a powerful ultra-high-speed technique for earth fault distance protection of double-circuit power transmission lines. The proposed technique uses the zero and positive sequence of the current signals. The technique presents a discriminating method based on the appearance of zero sequences, the zero sequence magnitude, and the time arrival instants of zero and positive sequence at the relaying point. The suggested technique consists of three stages. Stage 1; the polarity technique, which is designed to detect and classify faults within the protected zone. Stage 2; the ratio technique, which is designed to identify in which circuit the fault is involved. Stage 3; it is employed to calculate the distance of faults. Extensive numbers of simulations were conducted to test the action of the proposed technique. Results show that the technique provides a speed, secure, and dependable protection technique of double-circuit transmission lines even for remote fault, high resistance fault, and a low inception time fault. They also avoid the unbalanced load-switching effect and the current transformer (CT) saturation problems.

show abstract

Identification of symmetrical faults and overloads on parallel transmission lines based on compensated voltage cosine volume

Deng,

Lin,

Cui

2024

Electr Eng

View full text Add to dashboard Cite

A Novel Line Protection Scheme for a Single Phase-to-Ground Fault Based on Voltage Phase Comparison

Cited by 44 publications

References 15 publications

Testing through Fall of Potential with High Current Injection in Grounding System in Transmission Line of 500 kV of Santo Antonio HPS

Testing through Fall of Potential with High Current Injection in Grounding System in Transmission Line of 500 kV of Santo Antonio HPS

Ultra‐High‐Speed Non‐Unit Protection and Fault Location for Parallel Transmission Lines Earth Faults

Identification of symmetrical faults and overloads on parallel transmission lines based on compensated voltage cosine volume

Contact Info

Product

Resources

About