Unbalanced Voltage Impacts and its Analysis on an Induction Motor

International Research Journal of Engineering and Technology (IRJET) e-ISSN: 2395-0056
Volume: 10 Issue 02|Feb 2023 www.irjet.net p-ISSN: 2395-0072
© 2022, IRJET | Impact Factor value: 7.529 | ISO 9001:2008 Certified Journal | Page 167
Unbalanced Voltage Impacts and its Analysis on an Induction Motor
Vyshnav S B1, Abhishek Vinod2, Denil Paul3, Karthik R Ashok4, Sudheer P N5
1,2,3,4 Student, Dept. Of mechanical Engineering, Alva’s Institute Of Engineering and Technology, Karnataka, India
5 Professor Dept. Of mechanical Engineering, Alva’s Institute Of Engineering and Technology, Karnataka, India
---------------------------------------------------------------------***--------------------------------------------------------------------
ABSTRACT
Lacks like unequal voltages in the voltage source could
bring about issues like extreme misfortunes, overvoltage
mechanical motions, and impedance with control
hardware. Recognizing these unique machine situationsis
crucial in the electrical machine's collaboration with the
power matrix. This investigation studied the influence of
unequal voltages on motor execution. Then, at that point,
checking this unfortunate condition utilizing electrical
machine boundaries is done. For this situation, the motor
itself can go about as the sensor that distinguishesunusual
circumstances. Furthermore, this paper studies the
detrimental impactsofunevenThis representsa sinusoidal
voltage which is frequently seen in powersuppliesvoltage,
on acceptance motor presentation in terms of line flows,
power element, and proficiency.
Keywords- Unbalanced voltage, Induction motor,
Derating Curve.
1. INTRODUCTION
Induction motors are frequently employed in commercial
and industrial settings. Ventures incorporate vehicle and
semiconductor fabricating plants, emergency clinics,
broadcasting offices, and so on. Uneven stock voltage
makes unfriendly impacts on the electrical mechanical
assembliesparticularlytheelectrical motors.Asymmetrical
transformer winding, unbalanced loads, or huge single-
stage loads can all create voltage unbalance. Albeit the
voltage unbalances is little, huge uneven current streams
because are of moderately little negative arrangement
impedance. This high current produces overheating,
further accidents, vibrations, auditory disturbance, a loss
in force, and a decrease in the life of an induction motor [6,
7].
The effects of uneven voltage on induction motor torque,
speed, and current when the voltage size, stage point, or
both are modified at the same time are discussed in this
paper. The NEMA, IEEE, and power local area networks
have specified the voltage imbalance.Oneofthedefinitions
is frequently used for the induction motor test, and they
are all presented here. At this point when no less than one
of the stockpile qualities(abundanceaswell asstagepoint)
goes amiss from the guidelines, the electrical framework is
impacted by the unbalance voltage [11].
The induction motor (IM) is broadly utilized in the
industry since it gives great execution as well as high
unwavering quality and solidness [1, 2]. IMscanbelocated
in numerous applications which makes strenuous
conditions. Working under these circumstances
antagonistically influences IMs execution [3].IMs
shortcoming finding is vital, as it keeps away from
sensational outcomes to the actual machine and to the
general climate. The following are a some of the important
flaws that can affect the operation of electrical machines:
(1) problems with the stator, caused by the opening or
loosing of at least one turn; (2) unexpectedaffiliationofthe
stator windings; (3) broken rotor bars or broke rotor end-
rings; (4) static or potentially strong air-hole
impetuousness; (5) twisted shaft (similar to dynamic
whimsy), which can cause serious damage to the stator
core and windings; (6) shorted rotor fieldwinding;and(7)
failures with the headings and gearbox This essay focuses
on the stator deficits, which are caused by a few various
stressors and are primarily grouped into four categories.
[5]
The legitimate utilization of the power by the induction
motor as a framework to encounter burden prerequisites
is always a subject of extreme interest [1]-[13]. Most
modern motors have intended for 460 V activity, still, the
utilization of the dissemination framework to intend for
480 V. So the reasoning over here is that the link voltage
drop will permit the legitimate voltage of 460 V which is
present at the motor load points.Estimationshasappeared
to be disregarding the link falls, the motor terminal
voltages can be considerably more than the 460V in firm
modern frameworks, while it could bewell underneaththe
ostensible voltage, where the framework is vigorously
stacked in powerless business
2. Losses in electric motor
By using the proper, similar circuitcomputations,thesame
stator and rotor flows and corresponding copper losses at
each heap or slipknot are completely fixed. This contact
and wind age losses which generally 1-2%oftheevaluated
output. The no heap primary losses are especially subject
to quite a large number of highlights of the plan, yet an
unpleasant normal 2-3% of the examined output is this
number. In general, the rate of core losses decreaseswhen
the space openings, the ratio of the rotor to stator spaces,
or the length of the air hole are reduced. A huge extent of
this center malfunction and the wanderer load losses is J.

Faiz et al. /Energy Transformation and The board 47
(2006) 289-302 291 ordinarily because of space
recurrence throb losses, with the goal thatexcellentsilicon
steel is generally utilized for center laminations. Typical
upsides of stray center malfunction are 1-2% of the result
[8, 9].
3. Effect of Unbalanced Voltage on Losses
Voltage unbalances and mechanical over-burden create
extreme overheating on acceptance motors [12, 13]. The
overheating brought about by these two peculiarities is
created by the addition of current in the motor windings
[14, 15]. This augmentation is requested by the actual
motor to keep up with the force in the rotor [5, 7].
Moreover, a decrement in the rotor speed is gotten,
creating a deficient cooling [7]. The warm addition
adversely influences the motor lifetime, rotor and stator
guides, center, protection, and orientation, creating
irreversible harm when the motor warms past its plan
limits.
Voltage unbalance condition is introduced when the
voltage sizes of a three-phase framework are inconsistent
as well as vary from one another by a phase’s point of 120
degrees [13]. Voltage unbalance can be assessed utilizing
the voltage unbalance rate (%UNB) as indicated by the
IEEE standard [7]. It is characterized as follows:
Where U+ and U-are the positive and negative balanced
parts, individually, which are gotten through the Quick
Fourier Change (FFT) and the Fortescue change.
Not with tending the positive succession part, the negative
arrangement part of this current furthermore, one of the
main causes of the increase in machine losses is the
differentiation of the phase flowsinthesituationofuneven
voltage. If the entire losses of an acceptance machine are
separated into three groups, such as the copper losses
(stator and rotor), core losses, and mechanical losses, the
inconsistent voltage has the biggest effect on the copper
losses and the smallest effect on the mechanical losses.
To examine this exhibition motor with three
stages provided by an uneven voltage, what’s more,
envision its impact Based on the machine'slosses,a 7.5kW
three-phase enlistment motor with the specified
specifications is suggested. Summarizes the exhibition
circumstances while the motor operates with 4% slip and
estimated yield power. Stator copper losses, rotor ohmic
losses, core losses, mechanical losses (contact and
windage), and stray losses have all beentakenintoaccount
in the malfunction evaluation for the unequal voltage
supply. The manufacturerhastakenintoconsideration100
W in mechanical losses. Given that the core losses
opposition is also well understood, its variations under
balanced and unbalanced situations may be taken into
consideration In light of the complex voltage unbalance
factor, or CVUF, definition, the proposed motor is broken
down over full load and 0-6% unbalanced voltage, and the
different losses are assessed. Naturally, with the meaning
of CVUF, guarantee of the normal line voltage is necessary
to provide precise results from the analysis, disregarding
the imbalance point. With a point = 120 and a normal
voltage corresponding to 380 V, the imbalance of the
terminal voltage will be taken into consideration in this
case. As regular, it has expected that this normal terminals
voltage in modern plants is lower than the evaluated
esteem.
This builds the warm stress in the machine and will
prompt malfunction throughout everyday life, while
perhaps not an early disappointment. Thisis expectedfirst
and foremost are decrease over the size wherethepositive
arrangement voltage is contrasted with the uneven
contributed voltage. Furthermore, the existence of this
negative grouping moving charge makes a negative
grouping force which deducts from the positive grouping
force to relent a net force which is the more modest.
4. Derating Curve of the IM
Working a motor for an extended length of time in an
imbalanced voltage state exceeding 5% "is not
recommended," according to NEMA standards. The
imbalance state causes a motor to operate blazing. The
NEMA standard states that damagepreventionisnolonger
required when the imbalance hits 5% since the
temperature begins to increase so quickly at that point.
The most fundamental protection,accordingtoNEMA,isto
de-rate the motor — to lower the result draw load so that
it is able to withstand the additional heat produced by the
imbalanced accumulation. That has various ways to
encourage a derating curve. Based on several experiments
with various motors and adjusted voltages, one of them
claims that when voltages are imbalanced, the %
increment in temperature climbing climbs to almost twice
the square of the percentage voltage imbalance. According
to one of them, when voltages are unbalanced, the
temperature increases by a percentagethatisalmosttwice
the square of the percentage of the voltage imbalance. In
the end, it is still uncertain what derating will be neededto
keep the machine's temperature rising. This imbalance
derating curve (NEMA definition) Fig 1. The motor
shouldn't run at more than 77% of its predicted power,for
example, with a 5% imbalance.
In ideal supply circumstances, Comparing LSPMM
improvements to IE2 and IE3 class motors, lower
operating temperatures are achieved. Large current
unbalances areformedunderVUcircumstances,increasing
motor losses and hence the temperatures inside and
outside. To investigate the VU influence on motor

temperature with under and over voltage, thermo graphic
pictures indicating Figures 18 and 19 illustrate the results
for each VU condition for the LSPMM for the expansion of
this parameter in the motor end shield The images
demonstrate the behavior of 1% of VU at low and high
voltage. Causes no obvious changes in LSPMM
temperature, proving that motor output power should not
be reduced.
Fig; 1 Derating curve of the IM [16].
5. Consideration of Overvoltage and under
voltages in the Derating Curve
Overvoltage andUndervoltageontheNEMAderatingcurve
were accommodated by the electrical and heated models.
Motor losses are calculated using the electrical model. To
account for these losses and anticipate the increase in
motor temperature.
Fig2. Inclusion of overvoltage’s and undervoltage on the
derating curve [16].
The no-heap and locked rotor tests have left the motor
spinning. The core losses werecorrectedtentatively. When
used in conjunction with over- or under-voltage. As the
voltage imbalance grows, the center issue intensifies. The
warm model, which was introduced, was favorably
appreciated. Simple tests were performed to detect warm
boundaries, rather than motor plan information. In the
instance presentation the heated model performed
admirably in testing with variable voltages, uneven
voltages, and over- and under voltages. Both fleeting and
recurring occurrences might be predicted by the model.
Temperatures at the exactness of case 2. The derating
curve takes into account overvoltage and undervoltage.
The curves were created by carrying out the three
following scenarios: In Case 1, a motor was subjected toan
imbalanced voltage at the normal voltage. If both 2 and a
10% overvoltage in addition to up to 5% in unbalanced
voltages were applied to the motor. In Example 3, 10%
undervoltage and up to 5% irregularvoltages wereapplied
to a motor. When supplied by adjusted assessed voltages,
the motor's evaluated temperature was known at full load
the motor connections received the selected voltages. At
full load, a high stator twisting temperature was
anticipated. To keep the temperature at the appraised
level, the motor yield power was lowered for temperature
values over the assessed level. The derating still up in the
air as the proportion of the determined yield capacity that
evaluated power The motor is supposedto beprotectedby
the derating's 100 percent curve when it receives Case 1
voltages. As might be predicted, the NEMA curve and this
curve are extremely similar. When Case 2 voltages are
applied, the 110% curve will protect the motor. Less than
1% of an imbalance allows the motor to operate at
maximum power. This is equivalent to the NEMA curve.
The motor cannot be run at more than 71% of its rated
power with a 5% imbalance. When working with Case 3
voltages, the 90% curve is the derating curve that will
prevent motor twisting from overheating. Regardless of
voltage imbalance, the 90% curve recommends that a
motor be derated if it is anticipated to operate at full load
when under 10% Undervoltage. The derating for the 90%
Undervoltage and 100%evaluatedvoltagecurvesisalmost
the same at 5% imbalance. This is expected because the
Undervoltage scenario’s bigger and lower core losses
compensate for the analyzed case's lower and higher core
losses, resulting in the corresponding derating at thattime
[16].

Fig.3 (a) Positive sequence equivalent circuit
By breaking down a three-phase imbalanced system into
two sets of balanced signals and a set of single phase
phasors or symmetrical components, symmetrical
component analysis makes fault analysis simpler. The
positive, negative, and zero sequence components refer to
these stages. The use of symmetrical components in
relation to three-phase electric power networks facilitates
the investigation of imbalanced situations. A large
induction motor is especially susceptible to supplyvoltage
imbalance. A defect in voltage imbalance is significant
because an imbalanced voltage source can produce
excessive losses, heating, noise, and vibration. It is
necessary to resolve the problem of unbalance in the
voltage supply. This study analysis of an induction motor
operating in an unbalanced voltage supply is possible
(b) Use a NEMA [32] negative sequence equivalent circuit
[16] for this VU situation. The worst recorded conditions
are 3% and 4% overvoltage unbalances (Figure 19, c-f),
which are more harmful to the temperature of this motor
than the VU with Undervoltage.
Figure 20 depicts the temperature fluctuationforthethree
IMs in the six situations studied. The IE2 class motor has
an insulation class (maximum temperature of 130 C),
whereas the IE3 and IE4 class motors have insulationclass
F (maximum temperature of 155 C), indicating a better
tolerance for temperature rises. The results, however,
show that the IE4 and IE2 class motors have lower
operating temperatures than the IE3 class motor. Figure
20(a, c, and e) demonstrates that the VU with low voltage
does not result in an IE4 class motor.
DIFFERENT LOSSES IN 3-PHASE INDUCTION MOTOR
Copper loss: This copper loss happensmostlyinthestator
and rotor windings. It is the I^2R loss in winding in the
winding resistive components that are present. In which
the current passes where I^2R loss will occur in terms of
heat in the winding. This loss is variable loss due to load
varying the current varies and I^2R also varies. Due to the
length coil extension, this loss can be included and due to
the loss of copper wire in the slot copper loss is more
proven to occur. In the copper losses, there are stator
copper losses and rotor copper losses in the 3-phase
induction motor where these stator copper losses are
calculated according to the IEC norm by using an equation
of the test resistance RH and current IH rate [25, 26].
Ps= 1.5 RHI^2H = 3RPH I^2H
In this example, IH denotes the stator phase current and
RH denotes the winding line-to-line resistance, as both
equations provide the same answer when the phase
resistance RPH is used. These rotor winding losses areslip
(s) related and are generally calculated usingthe equation.
Pr= (P1-PS-PFe) S
P1 represents the electric input power, PS represents the
stator winding losses, PFe represents theno-loadironloss,
and S represents the slip. [26]
Iron or core or Magnetic loss: This iron or core loss
occurs mostly on an induction motor's stator and rotor
cores. This type of loss is sometimes referred to as core
loss or magnetic loss. A core loss or magnetic loss is
another name for this kind of loss. Eddy current loss and
hysteresis are combined in this situation. The supply
frequency, as well as the flux densityinthestatorandrotor
cores, influence both of these losses. The hysteresis loss
(considering an iron core with a winding and connected to
an AC supply using the right-hand thumb rule the current
passes anti-clockwise direction and magnetic flux is
upward. In the negative half cycle, the situation has
reversed the Sis on the right and north on the left. The
situation is called magnetic reversal it is a land of work
done when the energy loss takes place. This energy loss is
called hysteresis loss [23, 24, 28]. In the eddy current loss
when the AC supply happens flux is generated the AC flux
due to AC flux the EMF (electromagneticflux)isinducedon
the iron core surface. This EMF causes an eddy current
core surface. Due to this I^2R loss and resistive loss is
occurred in form of heat this loss is called eddy current
loss. A laminated core can be used to reduce eddy current
loss [29, 30].
Mechanical losses: mechanical losses in a three-phase
induction motor mainly occur due loss due to friction and
loss of windage. In this friction loss, these losses occur
when the two surfaces are in contact with each other and
have relative motion with each other. This frictional loss
mainly occurs in the bearing of the motor and this loss can
be reduced with the help of good lubrication. And the
windage losses are caused by the air disturbance in the
moving parts of the induction motor. By replacing the old
parts with a cylindrical design of the moving partsthisloss
can be minimized. In the cylindrical parts, air disturbance
is less so windage loss can be reduced. Mechanical loss is

constant, the magnetic losses are also constant this
mechanical plus magnetic loss creates a stray loss all these
losses occurs in term of heat [31]. And other additional
load losses are also found in the three-phase induction
motor due to the unbalanced condition.
CONCLUSION
Voltages this research investigated the derating of
acceptance machines when supplied by unevenvoltagesin
combination with over-and-under.Abroadinvestigation of
the unique meanings of unequal inventory has uncovered
that the distinctions in the definitions don't bring about
critical derating contrasts at the point when worked by
unequal supplies in the 5% territory. Positiveandnegative
succession circuits were introduced and the effect on the
general force speed curve made sense. The negative
grouping force diminishes the beginning, pinnacle and full
burden appraised force, in this way expanding beginning
time, lowering the motor's list-cyclingspeed,andmakingit
operate at a higher slip. For derating acceptancemachines,
the NEMA curve has been expanded to accommodate
overvoltage and Undervoltage. Themis voltage and
temperature data have beencomputedindependentlyfora
machine running with 10% overvoltage or 10% under
voltage using the electrical and heated models. The
derating factor for safe activities is not absolutely fixed.
There were also two contextual studies.
REFERENCES
[1] P. Pillay, “Practical considerations in applying energy
efficient motors in the petrochemical industry,” IEEE IAS
Mag., vol. 3, pp. 32–40, Jan. /Feb.1997
[2] R. F. Woll, “Effect of unbalanced voltage on the
operation of polyphase Induction motors,” IEEETrans. Ind.
Applicant., vol. IA-11, pp. 38–42, Jan. /Feb. 1975.
[3] Williams. Operationofthree-phaseinduction motorson
unbalanced voltages.AIEE Trans, Pt-III-A, and Power
Apparatus Syst 1954; 73(April):125–33.
[4] Gafford WC, Duestenhoef, Mosher CC.Heating of
induction motors on unbalanced voltages.AIEE Trans, Pt-
IIIA, Power Apparatus Syst 1959; PAS-78(June):282–97.
[5] “Comparison of applicationcapabilitiesofUandTrated
motors,” IEEE Trans. Ind. Applicat., vol. IA-11, pp. 34–39,
Jan. /Feb. 1975.
[6] Ana Barbara Fernandes Neves,AnesiodeLelesFerreira
Filho, MarcusVinicius Borges de Mendonca, “Effects of
Voltage Unbalance on Torque and Efficiency of a Three-
phase Induction Motor”, 16th IEEE conf.onHarmonicsand
Quality of Power, May 2014, pp. 679 – 683
[7] Enrique C. Quispe, Ivan D. Lopez,“EffectsofUnbalanced
Voltages on the Energy Performance of Three Phase
Induction Motors”, IEEE conf. on Power Electronics and
Power Quality Applications, July 2015, pp. 1- 6
[8] Spooner T, Kincaid CW.No load induction motor core
losses. Trans AIEE 1928; 48(April):645.
[9] Spooner T.Squirrel-cage induction motor core losses.
Trans AIEE 1925; 44:155.
[10] Nandi, S.; Toliyat, H.A.; Li, X. Conditionmonitoringand
fault diagnosis of electrical motors—A review. IEEETrans.
Energy Convers. 2005, 20, 719–729.
[11] Alwash, J.H.H.; Ikhwan, S.H. Generalised approach to
the analysis of asymmetrical threephaseinductionmotors.
IEEE Electr. Power Appl. 1995, 142, 87–96.
[12] J. L. Gonzalez-Cordoba, D. Granados-Lieberman, R. A.
Osornio-Rios, R. J. Romero-Troncoso, J. J. De Santiago-
Perez, and M. Valtierra-Rodríguez, “Methodology for
overheating identification on induction motors under
voltage unbalance conditions in the industrial process,” J.
Sci. Ind. Res., vol. 75, no. 2, pp. 100-107, Feb. 2016.
[13] P. Gnacinski, “Windings temperature and lossoflifeof
an induction machine under voltage unbalance combined
with over- or under voltages,” IEEE Trans. Energy Convers.,
vol. 23, no. 2, pp. 363-371, Apr. 2008.
[14] R. M. Tallam, B. L. Sang, G. C. Stone, G. B. Kliman, Y. Ji-
Yoon, T.G. Habetler, and R. G. Harley, “A survey of methods
for detection of stator-related faults in induction
machines,” IEEE Trans. Ind. Appl., vol. 43, no. 4, pp. 920-
933, July 2007.
[15] A. Siddique, G. S. Yadava and B. Singh, “A review of
stator fault monitoring techniques of induction motors,”
IEEE Trans. Energy Convers., vol. 20, no. 1, pp. 106-114,
Feb. 2005.
[16] Derating of Induction Motors Operating with a
Combination of Unbalanced Voltages and over or under
voltages Pragasen Pillay, Senior Member, IEEE, Peter
Hofmann, and Marubini Manyage.
17. Venkataraman, B.; Godsey,B.;Premerlani,W.;Shulman,
E.; Thaku, M.; Midence, R. Fundamentals of a motor
thermal model and Its applications in motor protection. In
Proceedings of the 58th Annual Conference for Protective
Relay Engineers, Jacksonville, FL, USA, 5–7 April 2005.
18. Lei, G.; Zhu, J.; Guo, Y.; Liu, C.; Ma, B. A Review of Design
Optimization Methods for Electrical Machines. Energies
2017, 10, 1962. [CrossRef]

19. Bouzid, S.; Viarouge, P.; Cros, J. Real-Time Digital Twin
of a Wound Rotor Induction Machine Based on Finite
Element Method. Energies 2020, 13, 5413. [CrossRef]
20. Gnaci nski, P. limczak, P. High-Power Induction
Motors Supplied with Voltage Containing Subharmonics.
Energies 2020, 13, 5894.
21. Asad, B.; Vaimann, T.; Belahcen, A.; Kallaste, A.;
Rassõlkin, A.; Iqbal, M.N. The Cluster Computation-Based
Hybrid FEM–Analytical Model of Induction MotorforFault
Diagnostics. Appl. Sci. 2020, 10, 7572. [CrossRef]
22] A. M. Bazzi and P. T. Krein, "Review of methods for
real-time loss minimization in induction machines, "IEEE
Trans. Ind. Appl., 2010. Rated Load. Energies 2018, 11,
2024.
23. Jeong-Jong Lee, Soon-O Kwon, Jung-Pyo Hong, Ji-Hyun
Kim, Kyung-Ho Ha, " Core Loss DistributionofThree-Phase
Induction Motor Using Numerical Method", IEEE
Conferences, INTELEC-31st international
telecommunications energy conference, pp.1 – 4, 2009.
24. T. Marcic et al" The impact of different stator and rotor
slot number combinations on iron losses of a three-phase
induction motor at no-load" Journal of Magnetism and
Magnetic Materials, vol.320, no20, pp. 891- 895, 2008.
25. Estimation of Copper and Iron Losses in a Three Phase
Induction Motor using Finite Element Analysis 574–583.
26. A. G. Yepes, J. Doval-Gandoy and H. A. Toliyat, "Strategy
with smooth transitions and improved torque-speed
region and stator copper loss for two-level asymmetrical
six-phase induction motor drives under switch
faults", IEEE Trans. Power Electron., vol.36,no.2,pp.1954-
1969, Feb. 2021.
27. Cardoso, A.J.M.; Cruz, S.M.A.; Fonseca, D.S.B. Inter-turn
stator winding fault diagnosis in three-phase induction
motors, by Park’s vector approach. IEEE Trans. Energy
Convers. 1999, 14, 595–598.
28. D. M. Ionel, Mohammed H. Yasen, M. Popescu, “Factors
Affecting the Accurate Prediction of Core Losses in
Electrical Machines", IEEE International Conference on
Electric Machines and Drives, pp. 1625 – 1632, 2005.
Trans. Power Deliv. 2015, 30, 693–703. [CrossRef]
29. Tong Yang; Libing Zhou; WeiJiang," CalculationofEddy
Current Losses in a Solid-Rotor Cage Induction Motor by
Finite Element Analysis", IEEE Conferences on Electrical
Machines and Systems, pp. 3656 - 3659, 2009.
30. atsumi and Noriaki, “Iron Loss Model for Rotating
Machines Using Direct Eddy Current Analysis in Electrical
Steel Sheets ", IEEE transactions on energyconversion,vol.
25, no. 3, 2010.
31. Konrad Dabala, " Analysisofmechanical lossesinthree-
phase squirrel cage induction motors "IEEE Conferences,
electrical machines andsystems,ICEMS,proceedingsofthe
fifth international conference, vol.1, pp.39-42, 2001

Unbalanced Voltage Impacts and its Analysis on an Induction Motor

Recommended

Recommended

More Related Content

Similar to Unbalanced Voltage Impacts and its Analysis on an Induction Motor

Similar to Unbalanced Voltage Impacts and its Analysis on an Induction Motor (20)

More from IRJET Journal

More from IRJET Journal (20)

Recently uploaded

Recently uploaded (20)

Unbalanced Voltage Impacts and its Analysis on an Induction Motor