Assessment criteria of the feasibility of replacement standard efficiency electric motors with high-efficiency motors

Gómez, Julio R.; Sousa, Vladimir; Eras, Juan José Cabello; Gutiérrez, Alexis Sagastume; Viego, Percy R.; Quispe, Enrique C.; León, Gabriel de

doi:10.1016/j.energy.2021.121877

Cited by 15 publications

(5 citation statements)

References 23 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Three-phase asynchronous motors (TAM) are one of the main components of electrical power systems [1]− [3]. For this reason, in power flux and stability studies, using models that reflect its behavior and are easy to represent is required [4].…”

Section: Introductionmentioning

confidence: 99%

A universal model of three-phase asynchronous motors for electrical power system analysis

Solar

Montiel

Llanes

et al. 2023

IJPEDS

View full text Add to dashboard Cite

<p><span lang="EN-US">The high incidence of three-phase asynchronous motors (TAM) in global energy consumption and its influence on the operation of electrical systems makes it necessary to develop models that allow their analysis effectively. Based on this, this paper presents a universal model of TAM based on the relationship between the active and reactive power of the TAM and the deviation of voltage and frequency. It can be applied to any general-purpose TAM and is very useful when representing these motors in electrical power system studies. The model parameters were obtained from a statistical analysis performed on 70 TAM of different classifications. The results are validated by comparing them with those obtained from the solution of the equivalent circuit, demonstrating its validity by less than 6% errors.</span></p>

show abstract

Section: Introductionmentioning

confidence: 99%

A universal model of three-phase asynchronous motors for electrical power system analysis

Solar

Montiel

Llanes

et al. 2023

IJPEDS

View full text Add to dashboard Cite

show abstract

“…When a SPIM fails due to overload or internal winding faults during its life cycle, a potential opportunity arises for improving the motor's efficiency in addition to repairing the failure. In particular, two potential solutions to this problem are available: (1) Replacing the existing old motor with a more energy efficient one [5], and (2) repairing and redesigning the stator windings through rewinding processes [6]. Although researchers have suggested that replacing the faulty motor with an off-the-shelf high-efficiency motor would be beneficial, the high initial investment cost makes this solution quite expensive [7,8].…”

Section: Introductionmentioning

confidence: 99%

Assessing the impact of three‐phase rewinding of a failed single‐phase motor on efficiency improvement and energy saving

Resketi

Adabi

Mirimani

2023

IET Electric Power Appl

View full text Add to dashboard Cite

Induction motors, particularly single‐phase induction motors (SPIMs), represent the major consumption of power in the household sector. SPIMs that fail during their life cycle represent the best opportunity to improve their efficiency by replacing or repairing them. Although replacing faulty motors with new and efficient ones results in significant energy savings, this replacement is uneconomical due to its high initial costs. Additionally, this option requires extensive energy and materials to manufacture, resulting in a considerable environmental impact. This article aims to introduce a three‐phase rewinding of a failed SPIM using a rewinding algorithm that significantly improves the machine's efficiency and performance in an economically viable way. The 0.75 HP single‐phase capacitor‐start induction motor has been rewound to convert it into a three‐phase motor with the required 110 V line voltage and 50 Hz frequency. The economic analysis implies that the rewound machine's life‐cycle cost is 6% and 18% lower than the purchased SPIM IE1 and existing SPIM by below efficiency class respectively. The rewound motor achieves a payback period of 1–1.6 years for different motor loading levels, based on the world average electricity price, indicating an economically viable solution.

show abstract

“…On the other hand, custom workshop service providers are not balanced with the level of needs of very enthusiastic customers. This problem requires an in-depth study of the financial aspect by determining the value of business feasibility using net present value, internal rate of return, payback period and profitability index [2][3][4]. The value of the investment has an influence on how much the price of the asset will be used for production.…”

Section: Introductionmentioning

confidence: 99%

Financial Feasibility of Modification Workshop Case Studies: Be-Modified

Dewanti¹,

Paryanto²,

Pradana³

et al. 2022

IJSDP

View full text Add to dashboard Cite

The purpose of this study is to determine the location of the custom workshop business using the criteria of NPV, IRR, PBP, PI and B/C. This research method uses a field research model with the right procedure to use the net present value method, internal rate of return, payback period, profitability index and benefit cost ratio to determine the custome workshop business. The results of the criteria obtained are that NPV>0, IRR is 29.4%, PBP is 2.75 years, PI is 1.1.48 and B/C is 1.1. This level of achievement uses the world every day, there must be activities in the custome workshop to achieve the criteria. The criterion that becomes the dominant factor is the occurrence of an increase in the profitability index. This is a criterion that states there is an increase in the benefits of the specified investment value. What causes an increase in benefits is that assets and production facilities can experience functions that are more suitable for the way they are used.

show abstract

Assessment criteria of the feasibility of replacement standard efficiency electric motors with high-efficiency motors

Cited by 15 publications

References 23 publications

A universal model of three-phase asynchronous motors for electrical power system analysis

A universal model of three-phase asynchronous motors for electrical power system analysis

Assessing the impact of three‐phase rewinding of a failed single‐phase motor on efficiency improvement and energy saving

Financial Feasibility of Modification Workshop Case Studies: Be-Modified

Contact Info

Product

Resources

About