Results 51 to 60 of about 1,073 (178)

Study of Coordination on Protection Relay in High Voltage Transmission 150 kV (Payakumbuh – Koto Padang, West Sumatra)

MATEC Web of Conferences, 2018
The disturbance of the high voltage transmission can be caused by a short circuit, overload, lightning surge, and other natural disturbances. That disturbance can lead to disruption of the distribution of electricity and damage to the electric power ...
Zulkarnaini Zulkarnaini, Rizki Muhammad
doaj   +1 more source

Migration Between Two Inverse Time-Overcurrent Curves of Different Standard: Experience at Siguragura Power Station

Jurnal Nasional Teknik Elektro, 2019
The inevitable replacement of electro-mechanical protection relays with more recently-developed microprocessor-based protection relays poses challenges to engineer, one of which is migration from existing manufacturer’s non-standard inverse time ...
Bagus Brahmantya Gautama
doaj   +1 more source

Coordinated DC Fault Ride‐Through Control for a Grid‐Forming Wind‐Storage System With VSC‐HVDC Integration Under Transmission Constraints

Engineering Reports, Volume 8, Issue 6, June 2026.
Due to complex wind farm conditions, a coordinated control system was designed. It manages DC power surges during AC faults by temporarily storing excess energy and regulating voltages. This strategy optimizes unbalanced power and enables effective fault recovery, resulting in minimal voltage fluctuations and superior performance.
Lei Chen, Qi Han
wiley   +1 more source

Grounding Fault Protection Scheme for 0.4 kV Switchgear in Metro Substations

Chengshi guidao jiaotong yanjiu
［Objective］ Single-phase grounding faults account for over 80% of the total distribution line faults, with most inter-phase faults originating from single-phase grounding faults.
ZHOU Wenwei
doaj   +1 more source

Implementation of Hydrogenerator Overcurrent Protection with Minimum Voltage Blockage Using Embedded Systems [PDF]

Journal of Electrical and Electronics Engineering, 2015
This paper presents a modern and efficient solution for the implementation of the hydrogenerator overcurrent protection with minimum voltage blockage.
PURCARU Dorina, GORDAN Ioan Mircea, PURCARU Anca   +2 more
doaj  

Enhanced Transformer Overcurrent Protection via Oil Temperature Acceleration

Energies
When a transformer is in a long-term heavy load operation state, the oil temperature reaches the alarm temperature; if a slight fault occurs inside the transformer, traditional inverse time current protection and other protections that react to phase ...
Qingguo Liu, Nuonan Mei, Zheng Wang, Jiahang Sun, Shanshan Zhou   +4 more
doaj   +1 more source

Pengembangan Sistem Proteksi Digital Arus Lebih Berbasis Logika Fuzzy sebagai Pengaman PLTMH

Jurnal Nasional Teknik Elektro, 2013
In this paper discussed digital overcurrent protection system fuzzy logic on plant systems or Micro Hydro Power Plants with fuzzy logic approach to the identification of the signal changes due to interference overcurrent short circuit the lifeboat ...
Cahayahati, Syafii, Ija Darmana, Zulwisli   +3 more
doaj  

Application of Under-Impedance Criterion to Protect against Effects of Phase-to-Phase Short Circuits in Medium-Voltage Networks

Energies
Common overcurrent criteria used to detect phase-to-phase short circuits in medium-voltage (MV) networks in some cases do not bring the expected results.
Beata Zięba, Bartosz Olejnik, Iwona Grobelna   +2 more
doaj   +1 more source

Overcurrent Protection of Radial Distribution Network

International Journal of Electrical Engineering and Applied Sciences, 2022
Overcurrent relay is the device that used in the protection of the power system network when there is any presence of fault. This paper represents the performance of  overcurrent protection of radial distribution network. The response of the current and
M. H. Hairi, M. N. Kamarudin , A.S. M. Isira, M. F. P. Mohamed, S. A. Sobri   +4 more
doaj  

Guidelines for Protection against Overcurrent in Photovoltaic Generators

Advances in Electrical and Computer Engineering, 2012
This paper gives the scientific background and basic premises that should guide the design of overcurrent protection in photovoltaic generators (PVGs).
GARCIA, O., HERNANDEZ, J.-C., JURADO, F.
doaj   +1 more source