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Currently, no tank-type capacitor is matched in Addis Ababa power system. From the data available, there is no earthquake over five degrees of Magnitude in Ethiopia, especially in the Addis Ababa Capital Region.
According to the interview with the EEP and JICA Study Team, there is no problem with the 132kV operation voltage in Addis Ababa's power system. However, the tank type capacitor is not currently matched in the system.
In Ethiopia, the electricity sector underwent significant changes. The electricity law (Electricity Proclamation No.86) was amended in 1997, leading to the privatization of the power utility as Ethiopia Electric Power Corporation (EEPCo) and the liberalization of the power generation sector.
An Amorphous Transformer is suitable for Ethiopia, as it has a maximum capacity of 1500MVA and can cope with future capacity growth. Tank type capacitors are not suitable for Ethiopia due to the absence of earthquakes in the country.
The JICA Study Team conducted a field survey to examine the acceptability of using an Amorphous Alloy Core Transformer (AMT) in Addis Ababa by grasping the type and amount of transformers used in the metropolitan area and their usage situation. The results are shown in Table 4-1.
Semantic Scholar extracted view of "Mitigation of Ethiopian industry sector power quality problems using ultra-capacitor based dynamic voltage restorer" by Beliyou Molla et al.
Poor power quality issues can cause voltage sag, swell, generation of harmonics, equipment failure due to large current, voltage, frequency imbalance. The aim of this paper is to review power quality issues, its problems and corrective methods.
Maximum permissible voltage: 110 % of the rated voltage 8 h. in every 24 h 115 % of the rated voltage 30 min. in every 24 h 120 % of the rated voltage 5 min. 130 % of the rated voltage 1 …
The goal of Ethiopia is to become a middle income country in 20 – 30 years. The growth should come from industrial development (Embassy of Japan in Ethiopia, 2008). To achieve this, a …
Power quality problem causes equipment malfunction, data distortion, transformer and motor insulation failure, voltage drops in nodes, overheating of neutral buses, tripping of circuit …
Table 3.18: Summary voltage and current unbalances for the three transformers ..... 59 Table …
This study highlights the effectiveness of the Ultra Capacitor-based DVR in …
Voltage control of power distribution systems is very important to ensure quality power supply to the customers. The potential applications of flexible AC transmission system (FACTS) devices, …
• Reliability: Capacitors can be of poor quality if made with non-capacitor grade-film. ABB''s strict selection criteria of raw materials and it''s first class capacitor film ensure QCap''s high …
quality problems of traction power system, such as power unbalance, harmonics, and reactive …
Poor power quality issues can cause voltage sag, swell, generation of harmonics, equipment failure due to large current, voltage, frequency imbalance. The aim of this paper is to review …
Table 3.18: Summary voltage and current unbalances for the three transformers ..... 59 Table 3.19: Power frequency variation measured from the transformers..... 60 Table 4.1: Comparison …
Large-scale industrial operations have dynamic power needs. And to keep production moving, you need corrections equipment that can keep up. The PowerVar series of low voltage capacitor …
The best position for capacitor and voltage regulator (VR) placement in radial distribution systems was reported in [20] using a fuzzy-based technique (RDS), which …
Voltage control of power distribution systems is very important to ensure quality power supply …
Semantic Scholar extracted view of "Mitigation of Ethiopian industry sector …
The paper proposes the application of a Dynamic Voltage Restorer (DVR) to enhance the power quality and improve the low voltage ride through (LVRT) capability of a …
Wide range in voltage levels from 240 to 1000 V. Capacities from 30 to 1200 kvar. Operation in ambient temperatures from -25 °C to 50 °C. Long life cycle due to high quality low losses …
quality problems of traction power system, such as power unbalance, harmonics, and reactive power will result in extra line loses, under-voltage at the terminal of contact wire, and …
therefore, Addis Ababa is not only the capital of Ethiopia but also the diplomatic center in Africa. For these reasons Addis Ababa needs to supply high quality of electricity with no outage and …
Capacitor units are building blocks for any power quality solution to mitigate issues like low power factor, voltage variations and harmonics. Hitachi Energy''s CLMD range of capacitors offers …
With energy transition, good power quality is becoming more and more essential for utility, industrial and commercial networks. Growing renewables and dominance of electronics in …
This study introduces the design of an Adaptive Fuzzy-PI Controlled Ultra-Capacitor based DVR to address voltage quality issues at Desta Plc. in Butajira, Ethiopia. The …
Although the values of the capacitors are the same (eg. 35 volts 2200 uf) some capacitors come out more robust and longer life. How can I measure the difference in quality? …
The low-voltage capacitor QCap from Hitachi Energy has the following features: Dry type design; Safe sealing design; Exclusive overpressure disconnection system; Long lifetime; Standardized capacitor range in a cylindrical form; Easy …
The paper proposes the application of a Dynamic Voltage Restorer (DVR) to …
This study highlights the effectiveness of the Ultra Capacitor-based DVR in improving power quality and ensuring stable operations for Desta Garment PLC. By …
Power quality problem causes equipment malfunction, data distortion, transformer and motor …