EEE World, Department of EEE, ADBU

Efficient and Robust Environmental Sensors for Industrial Applications

Include features such as low power consumption, low maintenance and low sensitivity to mechanical shocks These small surface-mount devices (SMD) can be used in portable and battery-powered detectors KEMET, one of the global suppliers of electronic components, has announcesd the strengthening of its industrial applications solutions with a range of environmental PIR sensors. By utilising […]

The post Efficient and Robust Environmental Sensors for Industrial Applications appeared first on Electronics For You.

View more at https://www.electronicsforu.com/technology-trends/news/environmental-sensor-solutions-for-industrial-applications.
Credit- EFY. Published by Department of EEE, ADBU: tinyurl.com/eee-adbu

Digital Pressure Gauge

Be it for weather prediction, detecting air flow movement through pipelines or obtaining altitude position with the help of a drone, pressure measurement plays an important role in a wide range of applications such as gas leakage, detection of airflow from a pipe, obstacle detection and various factory operations. Here we will make a digital […]

The post Digital Pressure Gauge appeared first on Electronics For You.

View more at https://www.electronicsforu.com/electronics-projects/digital-pressure-gauge.
Credit- EFY. Published by Department of EEE, ADBU: tinyurl.com/eee-adbu

Primary rated values for medium voltage switchgear often mixed by engineers

It’s not unusual to see that engineers mix terms of primary ratings. If they are not understood well, yes, it’s possible to mix some of them. But it’s essential to... Read more

The post Primary rated values for medium voltage switchgear often mixed by engineers appeared first on EEP - Electrical Engineering Portal.

View more at https://electrical-engineering-portal.com/primary-rated-values-medium-voltage-switchgear.
Credit- Electrical Engineering Portal. Published by Department of EEE, ADBU: tinyurl.com/eee-adbu

Successful Interoperability Testing Of 24G SAS End-to-End Storage

Delivers improved performance, security and reliability to data centre, cloud, hyperscale and enterprise server/storage 24G SAS standard enhances the storage interconnect bandwidth of the prior SAS standard and allows efficient use of both new and legacy storage infrastructure Microchip Technology and KIOXIA America (formerly Toshiba Memory America) have announced the successful completion of the 24G […]

The post Successful Interoperability Testing Of 24G SAS End-to-End Storage appeared first on Electronics For You.

View more at https://www.electronicsforu.com/technology-trends/news/24g-sas-end-to-end-storage-interoperability-testing.
Credit- EFY. Published by Department of EEE, ADBU: tinyurl.com/eee-adbu

Calculate Transformer Regulation & Losses (As per Transformer Name Plate)

Calculate Transformer Regulation and Losses for following Transformer Name Plate Details

KVA rating of Transformer(P)=16000VA
Primary voltage(Vp)=11000V
Secondary voltage(Vs)=433V
No load losses(W0)=72Watt
No load current(I0)=0.59Amp
Full load losses(W)=394Watt
Impedance voltage(Vi)=480Volt
LV resistance(Rs) =219.16 miliΩ
HV resistance(Rp) =215.33 Ω
Amb temperature(c)=30 Deg C
Total Connected Load on Transformer(Pl)=10000VA

Calculation:

% Loading of Transformer=Pl/P
% Loading of Transformer=10000/16000 = 63%

I2R Calculation:

HV Full load current (Ip) =P/Vpx1.732
HV Full load current (Ip) =16000/11000×1.732=0.84 Amp
LV Full load current (Is)=P/Vsx1.732
LV Full load current (Is)==16000/433×1.732=21.33 Amp
HV Side I2R losses= IpxIpxRp
HV Side I2R losses= 0.84×0.84×215.33=227.8 Watt—–(A)
LV Side I2R losses= IsxIsxRs
LV Side I2R losses==21.33×21.33×219.16=149.63 Watt—(B)
Total I² R losses @ Amb temp(Ir)=A+B
Total I² R losses @ Amb temp(Ir)=227.8+149.63=377.43 Watt
Total Stray losses @ Amb temp (Ws) =Full Load Losses-I2R Losses
Total Stray losses @ Amb temp (Ws) =394-377.43=16.57 Watt
I² R losses @75° c temp =Irx310/235xc =149.63×310/235×30 =441.52Watt
Stray loses @ 75° c temp =(Wsx(235+c))/310
Stray loses @ 75° c temp =(16.57x(235+30))/310=14.16 Watt
Total Full load losses at @75° c=441.52+14.16=455.69 Watt
Total Impedance at ambient temp (Ax)=Vix1.732/Ip
Total Impedance at ambient temp(Ax)=480×1.732/0.84=989.94Ω
Total Resistance at amb temp (Ar)=Ir/IpxIp
Total Resistance at amb temp (Ar)=377.43/0.84×0.84=535.15Ω
Total Reactance (X)=√AxxAx+ArxAr
Total Reactance (X)=√989.98×989.94+535.15×535.15=832.82Ω
Resistance at@ 75° c (R)= (310xAr)/(235+c)=310×535.15/235+30 = 626.03Ω
Impedance at 75° c (X1)=√2X+2R=√2×626.03+2×832.82 = 1041.88Ω
Percentage Impedance = (X1x0.5774xIpx100)/Vp
Percentage Impedance = (1041.88×0.5774×0.84×100)/11000=4.59%
Percentage Resistance (R%) =(Rx0.5774xIpx100)/Vp
Percentage Resistance(R%) =(626.03×0.5774×0.84×100)/11000=2.76%
Percentage Reactance(X%) = (Xx0.5774xIpx100)/Vp
Percentage Reactance(X%) = (832.82 x0.5774×0.84×100)/11000=3.67%

Regulation

Regulation at Unity P.F =2.76
Regulation at Unity at 0.8 P.F =((R% x cosØ)+(X% x SinØ))+(0.005x((R% x SinØ)+(X% x CosØ)))
Regulation at Unity at 0.8 P.F =((2.76 x 0.8)+(3.67 x 0.6))+(0.005x((2.76 x0.6)+(3.67 x 0.8)))=4.43

Results

Total I² R losses @ Amb. temp(Ir)= 377.43Watt
Total Stray losses @ Amb. temp (Ws) =16.57 Watt
Regulation at Unity P.F =2.76
Regulation at Unity at 0.8 P.F =4.43

View more at https://electricalnotes.wordpress.com/2020/06/22/calculate-transformer-regulation-losses-as-per-transformer-name-plate/.
Published by Department of EEE, ADBU: tinyurl.com/eee-adbu

How to Use EEPROM on the Arduino

In this tutorial, we’re going to look at EEPROM memory on the Arduino. EEPROM memory is a type of external memory that the Arduino can write to. You can use it to store files and log sensor data. To demonstrate how to use EEPROM memory on the Arduino, we will build a project that reads […]

View more at https://www.circuitbasics.com/how-to-use-eeprom-on-the-arduino/.
Credit- Circuit Basics. Published by Department of EEE, ADBU: tinyurl.com/eee-adbu

Pyroelectric passive infrared (PIR) sensors allow for easy integration, configuration and more design-in possibilities

KEMET (“KEMET” or the “Company”), a subsidiary of Yageo Corporation (“Yageo”), a leading global supplier of...

The post Pyroelectric passive infrared (PIR) sensors allow for easy integration, configuration and more design-in possibilities appeared first on Electronics-Lab.

View more at https://www.electronics-lab.com/pyroelectric-passive-infrared-pir-sensors-allow-easy-integration-configuration-design-possibilities/.
Credit- ELECTRONICS-LAB. Published by Department of EEE, ADBU: tinyurl.com/eee-adbu

TTGO ESP32-S2 WiFi IoT Board offers an Optional MicroSD Card with a Battery Support

For a while now, most popular ESP32-S2 boards available in the market are produced by Espressif...

The post TTGO ESP32-S2 WiFi IoT Board offers an Optional MicroSD Card with a Battery Support appeared first on Electronics-Lab.

View more at https://www.electronics-lab.com/ttgo-esp32-s2-wifi-iot-board-offers-optional-microsd-card-battery-support/.
Credit- ELECTRONICS-LAB. Published by Department of EEE, ADBU: tinyurl.com/eee-adbu

Power Meter gives accurate Measurement For energy Consumption of IoT devices

In the world of today’s technology, the Internet of Things is very popular. We see that...

The post Power Meter gives accurate Measurement For energy Consumption of IoT devices appeared first on Electronics-Lab.

View more at https://www.electronics-lab.com/power-meter-gives-accurate-measurement-energy-consumption-iot-devices/.
Credit- ELECTRONICS-LAB. Published by Department of EEE, ADBU: tinyurl.com/eee-adbu

Compact Transceiver Developed For Supporting Dual-Polarized MIMO

Researchers at the Tokyo Institute of Technology and NEC have jointly developed a 28 GHz phased-array transceiver that supports dual-polarized MIMO for 5G. It can cancel the cross-polarization leakage to prevent degradation of signal Researchers at the Tokyo Institute of Technology (Tokyo Tech) and NEC Corporation (NEC) have jointly developed a 28 GHz phased-array transceiver […]

The post Compact Transceiver Developed For Supporting Dual-Polarized MIMO appeared first on Electronics For You.

View more at https://www.electronicsforu.com/technology-trends/news/researchers-develop-transceiver-that-supports-dual-polarized-mimo.
Credit- EFY. Published by Department of EEE, ADBU: tinyurl.com/eee-adbu

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