From HoD’s Desk
Greetings!
The conclusion of the course curriculum and teaching the last unit was
the priority for the first week of May. Every teacher was struggling to get
extra lectures for that. Immediately after that, the practical, oral, and
project examinations were planned. After a long time, students were attending
offline practical and oral examinations. The third week was completely spent
for preparing for the compliance visit of experts from the National Board of
Accreditation. Every faculty member was excited about this prolonged visit. But
it gave guide learning to all. In the last week, the remaining examinations
were conducted and mainly the project examination. The reform made by the Internal
Quality Assurance Cell of the institute in the students’ projects has resulted
in good quality projects. This time most of the project groups have developed
hardware projects and presented their projects in various completions and some
of them published research papers. This was a significant change.
Although the SE, TE and BE classes are concluded the teaching of FE classes is still going on due to the late admissions. The completion of the curriculum is highly important to have good results. Next month will be devoted to planning the next academic year's activities.
Department Events
Orell Language Traning Program
Expert Session on “Busbar Arrangement and Earthing” by Mr. Mangesh Dalvi on 11 May 2022
NBA Committee visit for Compliance
The National Board of Accreditation (NBA) committee
visited the department for compliance on 21st May 2022.
Student Corner
Student Placement
The following
students are placed in various multinational companies. Congratulations to all
the students!
Placed Students Details (May 2022)
|
Sr. No. |
Name of
the Student |
Placement
Date |
Package
LPA |
Batch |
|
1 |
Yash
Vikram Kamble |
07-05-2022 |
4.25 Lacs |
2021-22 |
|
2 |
Shubham
Sanjay Nawale |
07-05-2022 |
4.25 Lacs |
2021-22 |
|
3 |
Omkar
RavindraTodkar |
07-05-2022 |
4.25 Lacs |
2021-22 |
|
4 |
Kalyani
Dhande |
07-05-2022 |
4.25 Lacs |
2021-22 |
|
5 |
Bachhav
Rajeshwari Kevba |
07-05-2022 |
4.25 Lacs |
2021-22 |
|
6 |
Gaurav
Laxman Sawkare |
28-05-2022 |
5.54 Lacs |
2021-22 |
|
7 |
Jadhav
Ketan Sanjay |
17-05-2022 |
6 Lacs |
2021-22 |
Industrial Visit
Annual Prize Distribution
|
Sr. No. |
Department |
CIass |
Rank |
Name of Topper |
MARKS |
SGPA |
|
1. |
Electrical |
S.E-A |
1st |
Tungar Sayaji
Rajendra |
1260 |
9.5 |
|
2. |
Electrical |
S.E-A |
2nd |
Barhate
Piyush Bharat |
1245 |
9.48 |
|
3. |
Electrical |
S.E-A |
3rd |
Rathod Prasad
Vijay |
1256 |
9.45 |
|
4. |
Electrical |
T.E-A |
1st |
Paul Anuj Arpan |
1372 |
10.00 |
|
5. |
Electrical |
T.E-A |
1st |
Dharaskar Vedika Rajesh |
1336 |
10.00 |
|
6. |
Electrical |
T.E-A |
2nd |
Beldar Saurav Rajendra |
1352 |
9.96 |
|
7. |
Electrical |
T.E-A |
3rd |
Kapse Kartik Balasaheb |
1315 |
9.91 |
|
8. |
Electrical |
B.E-A |
1st |
Tarle Roshan Balasaheb |
1253 |
9.57 |
|
9. |
Electrical |
B.E-A |
2nd |
Mahajan Harshal Kishor |
1371 |
9.49 |
|
10. |
Electrical |
B.E-A |
3rd |
Porje Kranti Arun |
1374 |
9.20 |
|
Sr. No. |
Department |
CIass |
Rank |
Name of Topper |
MARKS |
SGPA |
|
1. |
Electrical |
S.E-B |
1st |
Wagulde Harshal Ashwin |
1216 |
9.11 |
|
2. |
Electrical |
S.E-B |
2nd |
Gumbade Omkar Hemant |
1182 |
9.09 |
|
3. |
Electrical |
S.E-B |
3rd |
Pawar Srushti Kiran |
1177 |
8.91 |
|
4. |
Electrical |
T.E-
B |
1st |
Patil Shlok Ashok |
1309 |
9.98 |
|
5. |
Electrical |
T.E-
B |
2nd |
Jadhav Ketan Sanjay |
1282 |
9.85 |
|
6. |
Electrical |
T.E-
B |
3rd |
Chaudhari Dipali Shashikant |
1291 |
9.83 |
|
7. |
Electrical |
B.E-B |
1st |
Butale Vaishnavi Ratnakar |
1348 |
9.47 |
|
8. |
Electrical |
B.E-B |
2nd |
Patil Prajwal Sanjay |
1235 |
9.26 |
|
9. |
Electrical |
B.E-B |
3rd |
Patil Shubhangi Subhash |
1311 |
9.25 |
|
|
 |
|
|
|
|
|
 |
Award of Elite+Gold
Project Competition
|
|
|
Best Outgoing Student
Sports Achievement of the Students
Award of the Bronze Medal
|
|
|
|
|
|
Inter-college Sports winner/runner
Following
students won in the various Sports Events. Congratulations to all the students!
|
Sr. No. |
Name of
the Student |
Game |
Winner/Runner |
|
1 |
Domase
Anuja Dilip |
Chess |
Winner |
|
2 |
Bachhav
Rajeshwari Kevba |
Chess |
Winner |
|
3 |
Gaikwad
Prathmesh V. |
Handball |
Runner |
|
4 |
Kalme
Pranav Madhukar |
Handball |
Runner |
|
5 |
Kharche
Harshal Satish |
Handball |
Runner |
|
6 |
Sonawane
Mangesh Kishor |
Handball |
Runner |
|
7 |
Jadhav
Viraj Shamsundar |
Handball |
Runner |
|
8 |
Nikam
Yash Navnath |
Fencing |
Track S |
|
9 |
Tejale
Sahil Sunil |
Swimming |
Track S |
|
10 |
Rayate
Tejas Sudhakar |
Boxing |
Track S |
Final Year Project Exhibition cum Contest
The Final
Year Project Exhibition cum Contest organizes by the Internal Quality Assurance
Cell (IQAC) on 31st May 2022. In this competition, the project ‘Battery Operated Tractor’ by Arya Mishra, Rachcha
Anish, and Shinde Kanchan won 3rd prize. This
project was completed under the guidance of Prof. Dr. S. S. Dhamal. It was an industry-sponsored project of
Advent Engineers, Sinner.
Faculty Corner
Faculty Participation
Faculity Felicitation
NPTEL Course
Social Corner
Alumni Achievement
Student Articles
Dynamic Wireless Charging Technologies for Electric and Autonomous Vehicles
Bhavsar
Ajinkya Ajit (ajinkyabhavsar146@gmail.com)
B.E.-Electrical,
Div-B
Electric vehicles (EVs) and autonomous electric vehicles
(AEVs) are the future of transportation. Autonomous EVs are the advanced
version of EVs with the use of artificial intelligence (AI) which are connected
and fitted with an embedded driving/communication system and a high-tech set of
sensors – empowering them to operate safely without requiring a driver.
Autonomous vehicle technologies help in reducing traffic congestion and provide
a new form of mobility for jobs and hospital visits for people unable to afford
or operate personal vehicles. The AEVs i.e. Self-driving vehicles may use more
energy than people-driven vehicles to command sensors and computers for safe
navigation while they drive more smoothly as compared to humans which would
reduce energy use.
Wireless communication, as well as wireless power transfer
technology, plays an important role in EVs and AEVs. The dynamic wireless
charging (DWC) technology is the emerging technology that attracts EV
industries due to its ability to eliminate various challenges such as issues of
messy wires and safety matter in wet environments, battery sizing issues, as
well as waiting time to charge the battery. The dynamic wireless charging
technology requires infrastructural changes which involve technology as well as
policies and regulatory framework including the layout of government structure
for EV charging. Furthermore, the design of different coil structures enhances
the power transfer capabilities and misalignment tolerance.
In the dynamic wireless charging(DWC) technology in Fig 1, the supply is taken from the grid or the renewable energy sources such as wind-mill, etc. then this supply will convert to the high-frequency alternating supply according to the application. Then the primary coil or transmitting coil which is present below the road gets the supply of high frequency. According to the principle of mutual inductance, the high-frequency alternating supply will induce in the secondary coil or receiving coil which is mounted below the EV. Then induced supply will convert to the DC supply according to the applications or battery voltage of the EV.
Fig.1. Dynamic Wireless Charging
Application
of Dynamic Wireless Charging
● Dynamic wireless power transfer uses devices embedded in roads, on highways, or at city intersections, to charge cars while driving or parking on those roads. This system eliminates the inconvenience of plugging in charger cables and frees the user from range anxiety if their battery runs out of charge.
Arc Flash Mitigation Techniques
Gayatri Gorakh Jadhav, (gayatrijadhav524@gmail.com)
SE (Electrical), Div. B
An arc flash is a phenomenon in which electric current flashovers from one conductor to another or the ground and travels through the air. When a human is near an arc flash, it can cause significant harm or even death. To mitigate the associated risks, the 2020 National Electrical Code Article 240.87 – Methods to Reduce Clearing Time requires one of the following seven approaches when power is supplied through overcurrent protection devices rated 1200 Amps or more:
1. Zone-selective
interlocking
2. Differential
relaying
3. An
energy-reducing active arc flash mitigation system
4. An
instantaneous trip setting that is less than the available arcing current
5. An
instantaneous override setting that is less than the available arcing current
6. Energy-reducing
maintenance switching with local status indicator
7. An approved
equivalent means
The following sections summarize these approaches.
Zone-selective
interlocking employs a signal circuit between the trip units of
upstream and downstream circuit breakers. In this arrangement, the breaker
closest to a downstream fault location will clear the fault with no intentional
time delay and simultaneously send a trip delay signal to the next upstream
breaker. This arrangement limits the amount of equipment taken off-line. If a
fault occurs between the two breaker locations, the upstream breaker does not
receive a delay signal, and thus clears the fault with no intentional time
delay.
Differential relaying places current transformers upstream and
downstream of a zone of protected equipment, which is connected to a
differential relay. If the relay detects that the amount of current exiting the
zone does not match the amount of current entering the zone, such as when
faults occur in the protected zone, the relay signals the upstream breaker to
open. This clears the fault and reduces the hazard
Energy-reducing
active arc flash mitigation systems monitor
equipment for the occurrence of arc flash. When an overcurrent sensor or an
optical sensor detects the onset of a flash, a relay signals the trip unit of
an upstream breaker to open, limiting available incident energy.
Energy-reducing maintenance switching temporarily reduces the trip
setting of a circuit breaker so that it trips more quickly. By opening the
breaker more quickly when faults occur, incident energy and its associated
hazards are reduced. An energy-reducing maintenance switch is activated before
equipment service begins.
Instantaneous trip and override circuit
breakers provide selectable settings that enable a breaker to open
instantly as quickly as possible when an overcurrent event occurs, limiting
incident energy. When either or both settings are set below the value of a
prospective arcing current, the available incident energy is reduced in
downstream equipment.
In addition to the methods above, NEC Article 240.87(B) permits authorities to
approve other means.
Any evaluation of an arc flash mitigation
solution must consider any selective coordination scheme
used to establish circuit breaker trip times in the power distribution system.
Failure to do so could result in depowering more equipment than necessary when
electrical aberrations occur. The following references provide more
information:
·
NFPA 70 - National Electrical Code®,
2020 Edition - National Fire Protection Association
·
NFPA 70E - Standard for Electrical
Safety in the Workplace, 2018 Edition -
National Fire Protection Association
·
Selective Coordination Basics - ASCO
Power Technologies, Inc.
The selection of an arc flash mitigation strategy should only be completed by a qualified electrical system designer. For additional support, contact a qualified electrical engineer or a local ASCO Power Technologies
Also, the following are the METHODS TO REDUCE ENERGY EXPOSURE
1. ARC RESISTANT SWITCHGEAR
Arc-resistant switchgear is meant to send arc
energy up and out of the equipment, away from the operators, through
ducts/vents outside. Arc-resistant designs allow this activity to be completed
with all doors closed in equipment intended to deflect energy in the event of
an arcing fault.
For low- and medium-voltage systems, arc-resistant switchgear is available. Type 1 is simply arc-resistant in the front, whereas type 2 is arc-resistant in the front, sides, and back.
2. INFRARED SCANNING
Infrared scanning is the process of detecting
heat from an item with thermal imaging equipment, converting it to a
temperature, and showing a picture of the object's temperature distribution.
Infrared scanning detects the build-up of heat from any electrical part under
stress and forecasts whether or not the equipment will break, even if it looks
to be in good working order.
About Newsletter
Declaration
Newsletter Committee
Chief Editor: Dr. Ravindra K.
Munje, Professor and I/C HoD, Electrical Department
Faculty Editors: Prof.Saravanan. S, Assistant Professor
Prof.Priya Vyavahare, Assistant Professor
Student Editors: Anuj Paul (BE-A)
Sharvari Phase (BE-A)
Abhishek Jadhav (BE-A)
Rutuja Kapile (BE-A)
Vaibhav Dhanokar (TE-A)
Huzaif Sayyed (TE-A)
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(Newsletter invites technical articles by students on engg-hod-elct@kkwagh.edu.in)
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