Study Of The Effect Of Load Balance In 500 kVA Distribution Transformers In Complex Pt. Perta Arun Gas Area Of 17 Dumai Branch Lhokseumawe City

Syahputra, Rudi

doi:10.1088/1757-899x/536/1/012053

Cited by 2 publications

(6 citation statements)

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“…If there is load imbalance in all three phases, it can produce current flow in the neutral wire, and the load angle difference between phases is not equal to 120°. What is meant by a balanced state is a state in which (Figure 2a) [5][6][7]: 1. All three current/voltage vectors are equal 2.…”

Section: Research Stagesmentioning

confidence: 99%

“…The three vectors form a 120° angle with each other Meanwhile, an unbalanced state is a state in which one or both of the conditions of an equilibrium state are not met (Figure 2b). There are three possible unbalanced states, namely [5][6][7] Here it can be seen that the sum of the three current vectors (𝐼 𝑅 𝐼 𝑆 𝐼 𝑇 ) is equal to zero, so no neutral current appears. Whereas Figure 2(a) shows the vector current diagram in an unbalanced state.…”

Section: Research Stagesmentioning

confidence: 99%

“…Whereas Figure 2(a) shows the vector current diagram in an unbalanced state. Here it can be seen that the sum of the three current vectors (𝐼 𝑅 𝐼 𝑆 𝐼 𝑇 ) is not equal to zero so that a quantity appears, namely the neutral current (𝐼 𝑁 ) whose magnitude depends on how large the unbalance factor is [5][6][7].…”

Section: Research Stagesmentioning

confidence: 99%

“…Description: 𝑃 = Power at the send end (W) 𝑉 = Voltage at the send end (V) cos 𝜙 = Power factor If 𝐼 is the magnitude of the phase current in the power distribution by 𝑃 in a balanced state, then in the same power distribution but with an unbalanced state the magnitude of the phase currents can be expressed by the coefficient 𝑎, 𝑏, and 𝑐 as follows [9]: 𝐼 𝑅 = 𝑎 × 𝐼 𝑎𝑣𝑒𝑟𝑎𝑔𝑒 then 𝑎 = 𝐼 𝑅 𝐼 𝑎𝑣𝑒𝑟𝑎𝑔𝑒 (6) 𝐼 𝑆 = 𝑏 × 𝐼 𝑎𝑣𝑒𝑟𝑎𝑔𝑒 then 𝑏 = 𝐼 𝑆 𝐼 𝑎𝑣𝑒𝑟𝑎𝑔𝑒 (7) 𝐼 𝑇 = 𝑐 × 𝐼 𝑎𝑣𝑒𝑟𝑎𝑔𝑒 then 𝑐 = 𝐼 𝑇 𝐼 𝑎𝑣𝑒𝑟𝑎𝑔𝑒 (8) With 𝐼 𝑅 , 𝐼 𝑆 , and 𝐼 𝑇 are the phase currents 𝑅, 𝑆, and 𝑇. The power factor (cos 𝜙) the three phases are considered the same even though the magnitude of the current is different, the amount of power supplied can be expressed as follows [8]:…”

Section: Load Imbalance On Transformersmentioning

confidence: 99%

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Analysis of Load Imbalance in Tarakan Distribution Transformer of PT PLN (Persero) Sukarami Customer Service Unit

Azis,

Rizal,

Emidiana

et al. 2024

ETJ

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Load imbalance in an electric power distribution system always occurs and the cause of this imbalance is unbalanced single-phase loads on low voltage network customers. As a result of this load imbalance, a current arises in the neutral of the transformer, which can cause power losses. The aim of the research is to analyse the load imbalance of the Distribution Transformer PC0044, PC0074, PC0088, PC0129, PC1319 on the Tarakan Feeder of PT PLN (Persero) Sukarami Customer Service Unit. The results of the research show that the highest peak load percentage occurs on the PC1319 Distribution Transformer, namely 93.0874%, and based on PLN ED Decree No. 0017.E/DIR/2014, transformer loading. The largest percentage of load imbalance occurs in the PC0044 Distribution Transformer, namely 38.0952%, and based on PLN ED Decree No. 0017.E/DIR/2014, the current imbalance between phases is included in the bad category because the load imbalance is ≥ 25%. The largest percentage of power losses due to neutral current in the transformer neutral conductor occurs in the PC0044 Distribution Transformer, namely 2.6737%, and based on PLN ED Decree No. 0017.E/DIR/2014, the neutral current TR is included in the good category because the power losses due to the neutral current in the transformer neutral conductor are <10%. The largest percentage of power losses due to neutral current flowing to the ground occurs in the PC0044 Distribution Transformer, namely 5.0784%.

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Section: Research Stagesmentioning

confidence: 99%

Section: Research Stagesmentioning

confidence: 99%

Section: Research Stagesmentioning

confidence: 99%

Section: Load Imbalance On Transformersmentioning

confidence: 99%

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Analysis of Load Imbalance in Tarakan Distribution Transformer of PT PLN (Persero) Sukarami Customer Service Unit

Azis,

Rizal,

Emidiana

et al. 2024

ETJ

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“…The system is designed on ETAP 12.6 software, several tools are used to simulate load flow analysis and unbalanced load flow analysis and determine neutral current on system [13]. Analysis for the system's unbalance voltage and current will be done using a model of existing system.…”

Section: System Modelling Before Mitigationmentioning

confidence: 99%

Evaluation and Mitigation of Voltage and Current Unbalance at MSTP Undip Jepara

Denis

Sinuraya

Soemantri

et al. 2022

J. Phys.: Conf. Ser.

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Marine Science Techno Park (MSTP) Diponegoro University is a central for the application of technology and research in the fisheries and marine sector under the auspices of Diponegoro University. After measuring the electrical power quality parameters, a voltage and current unbalance problem was found on each SDP and MDP at MSTP Undip Jepara Building. The final project is designed to mitigate current and voltage unbalance with a load equalization method in each phase using ETAP 12.6 software. According to the ANSI C84.1-1995 standard, the maximum current unbalance value is 5% and according to the IEEE 45-2002 standard, the maximum voltage unbalance value is 3%. The equalization results show that the load can decrease the value of current unbalance, voltage unbalance, and neutral current that already meets the standards. Based on the evaluation of existing conditions, the current unbalance value on the MDP decreased from 21.522% to 0.419%, the MDP bus voltage unbalance value decreased from 0.280% to 0.015%, and the neutral current decreased from 35.5 ampere to 1 ampere.

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Study Of The Effect Of Load Balance In 500 kVA Distribution Transformers In Complex Pt. Perta Arun Gas Area Of 17 Dumai Branch Lhokseumawe City

Cited by 2 publications

References 0 publications

Analysis of Load Imbalance in Tarakan Distribution Transformer of PT PLN (Persero) Sukarami Customer Service Unit

Analysis of Load Imbalance in Tarakan Distribution Transformer of PT PLN (Persero) Sukarami Customer Service Unit

Evaluation and Mitigation of Voltage and Current Unbalance at MSTP Undip Jepara

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