FEM Based Analysis of Power Transformers & Sub-station Equipment

FEM Based Analysis of Power Transformers & Sub-station

It is the purpose of this research effort firstly to quantify the winding losses and stray losses to evaluate the corresponding temperature rise in transformers. This is accomplished using a 2-D FEM model adapted for winding loss calculation. A corrected hotspot factor that considers stray loss is proposed and verified by practical values. Thermal dynamic models are used and modified to consider a time varying distorted load cycle also. This temperature output is used, with an industry accepted insulation loss of life formula, to evaluate a transformer's per unit loss of life. The second major issue of Transformer is analysis of internal winding faults and condition monitoring methods. In this book a field based analytical method is developed to understand intensity of fault levels and from there an intelligent Neural Network based condition monitoring system has been modeled. Last but not least, in order to enhance the reliability of system, the transformer associated substation equipment like Cable and Bushings have been evaluated using Finite Element based Software and recommendations are given for design improvements for better performance.

  • ASIN: 3659371203

Etre Jeune STU-200 2-Pack Premium Earphones Earbuds Headphones with Stereo Micremote Control Compatible Phone Samsung Galaxy, White

Etre Jeune STU-200 2-Pack Premium Earphones Earbuds Headphones

Unique in-ear designunique ergonomic design ensures comfortable wearing experience for long-time and varied usage.Enjoy, full listening comfort with soft, snug earbuds that conform instantly to your ears.noise isolatingdesigned to not only provide high quality sound, but also fits snugly into your ears. It creates a better sound isolation and minimizes external sound interference.

  • Color: off-white
  • Brand: Etre Jeune
  • ASIN: B0022TMB9A
  • UPC: 615564715194

Polycom SoundStation VTX 1000 Conference Telephone - Mics and Subwoofer Not Included

Polycom SoundStation VTX 1000 Conference Telephone - Mics

The Polycom SoundStation VTX 1000 with Acoustic Clarity Technology is truly a leap in voice conferencing technology. It's the world's first conference phone that automatically adapts to each meeting environment, providing high fidelity voice clarity for all participants. With the SoundStation VTX 1000, conference call participants can speak at a normal, natural conversation level and be heard clearly from up to 20-feet away from the microphone - even in large conference rooms. And, when two SoundStation VTX 1000 conference phones connect on opposite ends of a call, the phones automatically connect in VTX Wideband mode, resulting in extraordinary fidelity. SoundStation VTX 1000 is the voice platform for the future. No wonder Polycom is the #1 choice in conference phones, worldwide.

  • Brand: Polycom
  • ASIN: B000643SUY
  • UPC: 666661325809

Micro Machines Orion J-22 Submarine Base Playset

Micro Machines Orion J-22 Submarine Base

Produced by Galoob in 1994. Very Rare. Approximate size of unopened packaging is 14" x 9" x 3.5".

  • Brand: Galoob MicroMachines
  • ASIN: B001GF8YHE
  • UPC: 047246655687

PAC Premium Amplifier Add-On/Replacement Radio Sound System Interface Kit GM - PAC AOEMGM1416

PAC Premium Amplifier Add-On/Replacement Radio Sound System Interface

PAC Premium Amplifier Add-On/replacement Radio Sound System Interface Kit GM - PAC AOEMGM1416.

  • Brand: PAC
  • ASIN: B000VW8AL8
  • UPC: 606523106832

Cable Matters (2-Pack) 6 Outlet Surge Protector Power Strip with USB Charging Ports / 300 Joules with 8 Foot Power Cord in White

Cable Matters (2-Pack) 6 Outlet Surge Protector Power

CONNECT MORE with Cable Matters AC Power Products 6 Outlet Power Strip Transform an existing electrical outlet into a mini-charging station in the kitchen, office, or school dorm room. Dual USB charging ports with a shared 2.1 amps charge two smartphones. The ON/OFF switch is accessible for a quick power-down or circuit breaker reset. It is wall or surface mountable with screw keyholes on the underside of the surge protector. Protected USB Charging Ports Dual USB charging ports with a shared 2.1 amps provide with protection from power spikes for your valuable electronic devices. All connected devices are protected with surge suppression up to 300 joules. Specifications - Electrical Rating: 15A, 125VAC, 60Hz, 1875W - Joules Rating: 300 - Clamping Voltage: 500V (3-Line L-N, L-G, N-G) - AC Power Cord Length: 8 Feet Important Notes - Rated for indoor use only in dry locations - Do not exceed the electrical rating Package Contents 2x 6-Outlet Surge Protector 1x Surface Mount Template Warranty Limited One-Year Warranty and Lifetime Product Support

  • Color: White
  • Brand: Cable Matters
  • ASIN: B01LZSL62P
  • UPC: 682017353395

Pevono DC Bench Power Supply Variable, PS305 0-30V/0-5A 3 Digital LCD Display High Voltage&Current Adjustable Switching Regulated Power Supply with US Power Cord For Lab Equipment,Research and DIYer

Pevono DC Bench Power Supply Variable, PS305 0-30V/0-5A

Product Description: Pevono PS305 series high precision DC bench power supply is designed for workshop maintenance and electronics tester and repair, product development, laboratories and DIY hobbyist and industrial users. This is one of the best power supply you can find on Amazon. Both of the output voltage and current are can be continuously adjustable at nominal value. Featuring high accuracy supply power, this is definition of reliability, safety overload and short circuit protection circuit power source. Technical Specifications: Output voltage: DC 0-30V Output dc power current: 0V - 5A Overall efficiency: ≥95% Display resolution voltage: 0.01V , current 0.01A  General Information: Dimension: 2.9*1.1*1.8 inch Net weight: 1.8kg Working temperature: 0~40°C Relative humidity: ≤80% Fuse: F5AL, 250VAC Voltage Regulations: Regulation rate: ≤0.03%+1mV Load regulation rate: ≤0.3% Ripple and noise: ≤ 3Vrms(5Hz-1MHz) Ripple and noise:

  • Color: 3 Digital
  • Brand: Pevono
  • ASIN: B076TMJB35
  • UPC: 612520998127



The 1506 Series provides access control for virtually any application where stand-alone digital code entry is desired. These vandal resistant keypads use stainless steel faceplates, galvanized steel subplates and are housed in a rugged steel cabinet. Standard style units can be surface or post mounted. The 1504 series adds an intercom sub-station that can be connected to a master intercom station.

  • Brand: DoorKing
  • ASIN: B004HN1LUE

Onkyo TX-8020 2 channel Stereo Receiver

Onkyo TX-8020 2 channel Stereo

Can’t turn on the receiver • Make sure that the power cord is plugged into the electric outlet properly. • Unplug the power cord from the electric outlet, wait 5 seconds or more, then plug it in again. TROUBLESHOOTING : Noise can be heard • Using cable ties to bundle audio cables with power cords, speaker cables, and so on may degrade the audio performance; do not bundle audio cables together with power cords or speaker cables. • An audio cable may be picking up interference. Try repositioning your cable

  • Brand: Onkyo
  • ASIN: B00EE18O7W
  • UPC: 751398011306

AC Power Meter, DROK AC 80-300V 100A Voltage Current Color LCD Display Panel, Digital Voltmeter Ammeter Watt Active Power Energy Battery Monitor Multimeter Volt Amp Meter with Current Transformer CT

AC Power Meter, DROK AC 80-300V 100A Voltage

Parameters: Voltage Measuring Range: AC 80.0-300.0V Current Measuring Range: AC 0-99.99A (Resolution: 0.01A, display 100.0A when over 100A) Active Power Measuring Range: 0-3000W Resolution: 0.1W (under 10 000W);  1W (over 10 000W) Electric Energy Measuring Range: 0-9 999 999kWh Resolution: 0.001kWh (0-9 999.999kWh); 0.01kWh(10 000.00-99 999.99kWh); 0.1kWh(100 000.0-999 999.9kWh); 1kWh(over 1 000 000kWh) Measuring Accuracy: 1% ± 2 digits Measuring Speed: 2 times per second Outside Dimension: 79*43*48mm Installation Dimension: 76*39mm Save Function: Automatically save the accumulated electricity value during the power outage. Reset Function: Long press the reset button for 5 seconds, the accumulative electricity will be cleared to zero. Operating Condition: Working Temperature: -10~+50℃ Working Humidity: 10 ~ 80% (no condensation) Working Pressure: 80 ~ 106kPa Sunlight: No direct exposure Wiring Connection: (a) Connect the green wire of secondary CT(current transformer) to the BLUE terminal of the meter. (b) Pass the circuit under measurement through the hole of the CT, and then connect it to the green terminal. (c) After power on, the screen will display the measured data. Note: The multimeter can only work on AC 50-60Hz pure mains supply. Do not use it to measure square...

  • Brand: DROK

LuguLake Soundbar, 2.1 Channel TV Sound bar System with Subwoofer, Bluetooth, Composable Floor Speaker, Adjustable LED Lights, FM Radio, USB Reader, Remote Control

LuguLake Soundbar, 2.1 Channel TV Sound bar System

2.1 Channel, 110dB, Wood Subwoofer Home Theater SystemDensity and heavy wood bass cabinet booms low-frequency sound. Wood Subwoofer driver delivers a room-filling audio experience with thumping bass effect. Multi-Media Connections-BT 4.0 enabled connectivity of your TV, PC computer, laptop, pad, smartphone.-Built-In FM radio, supports switching from 87.5-108 MHz radio stations. Digital FM with 100 channels capacity-RCA, RCA to 3.5mm Jacket, For some TV models, you may need a extra converter and coaxial/optical cable. -USB flash drive 2.0 supports music in your Ipod, mp3, etcEyes-Catching LED LightsLuguLake TV Bar, with 6-color LED lights in wood subwoofer, is definitely a nice decoration in the house. This speaker expands the applicable environments. You can use it at the party, at studio, at yoga, at gym, at home theater or living room.Sound Bar to Sound StandQuick installation: Twist to split apart 2 satellite speakers; align and twist these two parts assembled into a 31 inches length TV BAR.What we offer:One year warranty, and lifetime free easy-to-touch technical support. Any connection issue please contact us by email or call.

  • Color: T200
  • Brand: LuguLake

Onkyo TX-8270 2 Channel Network Stereo Receiver with 4k HDMI

Onkyo TX-8270 2 Channel Network Stereo Receiver with

The TX-8270, is a beautifully engineered 100W/ Ch. network stereo receiver designed to maximize musical enjoyment and drive your favorite speakers. Built around a massive transformer, audio-grade capacitors, and discrete non-phase-shift circuitry locked into a robust chassis, this amp has high-current power to illuminate cherished vinyl to Hi-Res audio and unmatched connectivity options for audio components.

  • Color: Black
  • Brand: Onkyo
  • ASIN: B06Y15DWXZ
  • UPC: 889951000730

LG 34" IPS WFHD Ultrawide Freesync Monitor 2017 Model (34UM60-P) with 2X 6ft High Speed HDMI Cable, Screen Cleaner for LED TVs & Transformer Tap USB w/ 6-Outlet Wall Adapter and 2 Ports

LG 34" IPS WFHD Ultrawide Freesync Monitor 2017

Product Specifications: Picture Quality Screen Size: 34" Panel Type: IPS Color Gamut (CIE1931): sRBG over 99 percent Color Depth(Number of Colors): 8bits (6bit+FRC), 16.7M Pixel Pitch(mm): 0.312 x 0.310 Response Time: 5ms Refresh Rate: 75 Hz Aspect Ratio: 21:9 Resolution: 2560 x 1080 Brightness(Typ.): 300nits Contrast Ratio: Mega Viewing Angle(CR greater than or equal to 10): 178/178 Surface Treatment(Glare/non Glare): Anti-Glare 3H Input/Output HDMI: Yes x1 (ver 1.4) DisplayPort: Yes x1 (ver 1.2) Power Type: Adapter Input: approx. 100 - 240, 50/60Hz Normal On (EPA): 31.9W Special Features Picture Mode: Custom, Reader, Photo, Cinema, Color Weakness, FPS Game 1, FPS Game 2, RTS Game, Custom (Game) Ratio: Wide, Original, Cinema 1, Cinema 2 PIP: PIP mode in Screen Split DDC/CI: Yes HDCP: HDMI, Yes (1.4) Flicker Safe: Yes Smart Energy saving: Yes Automatic standby: Yes Six Axis Control: Yes SUPER+Resolution: Yes FreeSync: Yes Game Mode: Yes DAS Mode: Yes Black Stabilizer: Yes Crosshair: Yes On Screen Control: Yes Dual Controller: Yes Dimensions/Weight With Stand (WxDxH): 32.7" x 8.1" x 18.1" Without Stand (WxDxH): 32.7" x 2.6" x 15.0" Shipping Dimensions (WxDxH): 37.3" x 6.6" x 21.0" With Stand Weight: 14.1 lbs Without Stand Weight: 12.6 lbs Shipping Weight: 19.6 lbs Cabinet / Access...

  • Brand: LG
  • ASIN: B06Y53KVD7
  • UPC: 841434169372

TV Antenna for Digital TV Indoor HDTV Antenna With 120 Miles Long Range Support 4K 1080p,All Older TV's With Powerful Detachable Amplifier Signal Booster, Power Adapter,Long Coax Cable [2019 Upgraded]

TV Antenna for Digital TV Indoor HDTV Antenna

With YoungFly TV antenna, you no longer need to pay expensive cable or satellite fees again. Access to free various HD channels at no cost. Reception range is up to 120 miles. Specifications: Reception Range: 60-120 miles Product Size: 32x23x1.2cm; Package Size: 35x33.5x2cm Product weight: 159g Working Frequency: VHF (172-240 MHz) \ UHF (470-860 MHz) Signal Booster Cable: 3.28ft Antenna Cable: 1.5C-2V / Black L=13.12ft Operation/ Storage Temperature : -49 ~ 185℉ Power Supply Connector: USB Compatible with 720p, 1080i, 1080p/ ATSC Product Highlights: 1.Solved the problem of being easily interrupted by the disturbance for most aerial. 2.Adopt with the newest crystal-clear filter techno in signal reception and conversion. 3.High-quality amplifier, ensure a better reception for these who live in a main mast area with an inferior signal reception. 4.High performance coax cable with less attenuation rate. 5.Compatible with HDTV of various digital terrestrial (DVB-T, ISDB-T, DMB-T/h, ATSC) and DAB/FM radios setup instructions. Installation Steps: Step 1: Place the Aerial in an area with maximize signal strength. (Recommend to attach to window) Step 2: Connect the aerial directly to the TV ANT/IN on the back of the TV or digital converter box. Step 3: Scan for channels and ac...

  • Brand: YOUNGFLY
  • UPC: 657631786874

Earthquake Sound IQ52S iPod Docking Speaker System (Silver Piano Gloss, Pair)

Earthquake Sound IQ52S iPod Docking Speaker System (Silver

iQuake-52 is a set of self-powered iPod docking speakers and is perfect as TV speakers, computer speakers, or bookshelf speakers. Their versatility, high end finish, and cost effectiveness makes them stand out while their sheer power floors customers who keep coming back for more. iQuake-52 has punched up not only its appearance but its interior components as well. With a more powerful transformer, the iQuake-52 easily plays and charges the newest iTouch and iPhone 4G models. And it of course can still handle all of the past versions of iPods and iPhones. Non-iPod MP3 players need not fret because any music player can be easily plugged into the audio input on the amplifier. Other smart amplifier features include the subwoofer output, the S-VIDEO output and the USB port for syncing iPod devices with your computer.

  • Color: Silver
  • Brand: Earthquake Sound
  • ASIN: B005XYVEP8
  • UPC: 068975900268

Bluetooth Stereo Receiver w/Phono Input, Subwoofer Output and FM Tuner by AVX Audio

Bluetooth Stereo Receiver w/Phono Input, Subwoofer Output and

BLUETOOTH FOR WIRELESS MUSIC STREAMING The BTA-1000 allows smartphones, tablets and virtually all other portable, Bluetooth enabled devices to connect and stream wirelessly. Whether you connect this amplifier to your outdoor speakers to stream patio sound or enjoy wireless playback indoors the BTA-1000 offers cutting edge connectivity while still accommodating wired sources as well. VERSATILE CONNECTIVITY With an array of inputs and options for connectivity the BTA-1000 is truly an audio amp. No added video processing here, this is strictly an audio amplifier with its focus on sound quality and fidelity. Connect a CD Player / MP3 Player / or other two channel source via one of the 2 sets of RCA inputs, or let the BTA-1000 control your music by inserting an SD card or USB flash drive into the front panel. Connect your headphones to the 1/4" input or stream Bluetooth wirelessly from any enabled source. Connect your turntable to spin some vinyl. Or tune in to your local FM stations with the built-in tuner, antenna also supplied in the box. Ultimately, you decide how to enjoy your music. DUAL SPEAKER INPUTS Connect two sets of 8 ohm speakers that can be run individually or simultaneously, or connect one pair of 4 ohm speakers. The BTA-2000 is flexible and can accommodate a ...

  • Brand: AVX Audio
  • ASIN: B0725Q7TNG
  • UPC: 757901773471

Denon AVRX2200W-R 7.2 Channel Full 4K Ultra HD AV Receiver with Bluetooth & Wi-Fi (Certified  Refurbished)

Denon AVRX2200W-R 7.2 Channel Full 4K Ultra HD

The AVR-X2200W 7.2 Network AV Receiver delivers the latest Denon surround sound technology at an affordable price - but that doesn't mean compromising on sound quality and this model is the result of extensive listening tests in Europe and Japan (E2). With it's 7 discrete output stages each providing 95 watts ( referenced wattage change by region) of clean power, the AVR-X2200W creates stunning cinema sound and detailed music playback. Built-in Wi-Fi enables you to hook-up to your home network quickly, and Bluetooth makes wireless playback from compatible portable devices really easy. Likewise, the clear on-screen interface and setup assistant make this Receiver incredibly easy to use. You can also listen to a vast range of internet radio stations, as well as enjoying music from streaming services such as Sirius XM, Spotify connect, Pandora, and QQ music (subscriptions required). ( Available music services change by region). This model is also equipped with advanced video circuitry to ensure that High Definition video images are accurately reproduced. An extensive array of inputs, outputs and control options make the AVR-X2200W a truly versatile AV control center.

  • Brand: Denon
  • ASIN: B0186V8696
  • UPC: 883795000376
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