CR4 - Forum: Electrical Engineering

03/04/2009 9:42 AM How to Calculate Motor Full Load Current

by msamad

Last post: 01/06/2021 11:43 AM

by Codemaster

30

26920

04/15/2011 5:08 PM How to Build an AVR for a Three Phase Generator?

by Mishel

Last post: 07/06/2021 6:48 PM

by 67model

181

19338

09/25/2008 2:48 AM Star Delta Connection Diagram

by wolf sameer

Last post: 02/27/2011 3:43 AM

by Anonymous Poster

17

19065

11/24/2009 12:03 AM How to Calculate Locked Rotor Current

by benocrash

Last post: 12/19/2016 4:32 AM

by PWSlack

15

18825

03/12/2008 2:34 PM what is O-0.3s-CO-3min-CO for a Circuit breaker?

by Anonymous Poster

Last post: 06/16/2018 11:43 PM

by Anonymous Poster

7

16195

10/16/2009 1:08 AM How to Calculate CT Ratio and PT Ratio

by Anonymous Poster

Last post: 11/08/2009 2:02 AM

by jmueller

12

14822

11/12/2008 2:17 PM Non-Reversing vs. Reversing Contactor

by wjwlitespeed

Last post: 08/16/2009 5:41 AM

by Anonymous Poster

9

13597

02/20/2007 2:46 AM Voltage Drop Formula

by Anonymous Poster

Last post: 10/26/2010 4:19 AM

by masu

43

12835

10/15/2009 11:51 PM KNAN, KNAF,ONAN, ONAF

by Cadet Engineer

Last post: 01/12/2011 7:04 AM

by Anonymous Poster

12

12579

06/19/2009 2:47 AM Starting Current for Star Delta and DOL Starter

by mago

Last post: 04/13/2017 6:39 AM

by Anonymous Poster

11

12028

09/16/2007 5:15 AM How Can You Calculate FLA From LRA

by ediri69

Last post: 10/28/2014 3:36 PM

by Markking

29

11883

12/30/2006 11:53 PM Grid-Tie Inverter Design

by seshkanuri

Last post: 06/10/2019 7:16 AM

by SolarPanel

69

11799

11/23/2006 5:07 AM Maximum Demand (KVA) Calculation Formula

by renjith2008

Last post: 12/08/2011 2:38 AM

by inderjeet singh

19

11501

09/15/2006 1:15 AM Current carring capacity of copper bus bar

by Anonymous Poster

Last post: 07/06/2015 3:17 AM

by asjadjaved

30

11274

10/25/2012 5:22 PM Meaning of Terms (In,Io,Ir,Im,tr,Iinst) on the Breaker

by joganand

Last post: 10/28/2012 1:03 PM

by RG2

8

10573

10/07/2007 11:43 AM What is RMU (Ring Main Units) Design in Electrical Panels?

by Anonymous Poster

Last post: 06/22/2016 5:59 AM

by highvoltpower

13

10272

09/29/2008 4:43 AM Three-Phase to Single-Phase Transformer

by shekhar28280

Last post: 04/14/2018 9:55 AM

by OmoOKIKI

29

10216

04/08/2007 6:01 AM Circuit Diagram for a 12V LED Lamp

by Anonymous Poster

Last post: 09/25/2016 1:42 AM

by Anonymous Poster

36

10191

11/08/2010 10:19 AM DC DC Converter

by manojtm

Last post: 11/26/2020 5:08 AM

by IYKEEH

53

10042

03/15/2012 1:19 AM Calculate Fuel Consumption Per Day for Diesel Generator?

by duffyem

Last post: 06/04/2018 4:57 AM

by masu

29

9323

01/15/2007 10:37 PM Cable Sizing Calculations?

by vince_02brad@yahoo.co.uk

Last post: 07/25/2014 4:08 AM

by dhayanandhan

34

9262

08/28/2008 6:43 AM Bus bar short circuit calculation

by kailasamvv

Last post: 12/26/2015 11:07 AM

by Anupam0103

16

9185

03/14/2014 3:09 AM What is the Difference Between Bkw & kw

by maddy1157

Last post: 02/10/2021 5:33 AM

by Codemaster

29

9126

05/12/2008 8:48 PM Proper Way of Wiring 8pin 120ac Volts Coil Relay

by Elder1

Last post: 08/29/2010 6:48 AM

by EgadsNo

25

8813

09/25/2009 8:03 AM Locked Rotor Current vs. Starting Current

by Raif-Samir

Last post: 12/07/2010 1:45 AM

by Anonymous Poster

6

8748

07/04/2011 11:22 PM UPS Transformer ?!? Specifications - Power Supply?

by tkc100

Last post: 03/23/2017 1:56 AM

by Wes2859

26

8732

04/06/2009 11:36 PM Converting a Ceiling Fan to a Generator

by naduthodiharis

Last post: 03/24/2012 5:21 PM

by kevlau99

68

8680

04/04/2009 11:19 PM GD2 value of electrical motor

by Anonymous Poster

Last post: 07/16/2013 10:38 AM

by dhayanandhan

11

8672

04/19/2006 6:58 AM P0715 Input/Turbine Speed Sensor Circuit Malfunction

by Anonymous Poster

Last post: 07/29/2010 10:00 PM

by Anonymous Poster

18

8558

12/30/2007 9:15 AM how to calculate system fault MVA ?

by sandeep

Last post: 11/06/2009 6:09 AM

by KKK

23

8554

12/30/2008 5:12 PM root 3, how it comes 3 phase power calculations

by jacobpachikkal

Last post: 09/16/2017 11:12 PM

by dkwarner

14

8278

02/03/2008 11:44 AM CAPACITOR SIZES FOR CAP-START and/or RUN MOTORS

by ALTENCH

Last post: 06/05/2017 8:39 PM

by Thomas Jones

10

7916

08/21/2010 1:13 PM 8 Pin Relay -How to Wire it

by novicearc

Last post: 08/30/2017 2:56 AM

by Robert Sollano Sepanton

25

7668

06/04/2010 1:46 AM Star Delta Connection Diagram

by Anonymous Poster

Last post: 07/11/2019 2:56 PM

by JRaef

19

7594

10/04/2008 1:56 PM how we can calculate transformer capacity in kva?

by Anonymous Poster

Last post: 07/15/2015 2:42 PM

by ElectricalTech

14

7330

11/01/2008 8:38 AM How to Reduce the Earthing Resistance

by michaelbillones

Last post: 04/07/2015 11:15 PM

by D S R RAJU

41

7084

05/19/2009 6:43 AM How to Calculate Lux Level for Street Lighting

by mago

Last post: 08/16/2013 12:00 AM

by naresh_varshney

24

7071

11/17/2010 1:25 AM Why to use class PS CT's for Differential Protection?

by roshanjawale

Last post: 04/23/2015 12:04 AM

by ykuakhi

11

7066

08/19/2007 3:52 PM What is a Namur Sensor?

by Nishant

Last post: 04/13/2009 8:39 AM

by Anonymous Poster

5

7057

12/27/2008 11:21 AM star delta connections for 3 phase motors

by gohiljayesh

Last post: 10/02/2014 6:58 AM

by maghanee

26

6905

02/21/2009 8:41 AM Can a car alternator generate 110v?

by energyconversion

Last post: 07/14/2014 12:24 AM

by Joseph Jonathan Gould

35

6807

12/20/2008 12:00 AM motor winding status

by hkchand

Last post: 02/15/2015 9:49 AM

by dhayanandhan

20

6736

04/12/2010 11:36 PM Star Delta Starter Control circuit

by leelavathyr

Last post: 01/10/2011 11:56 PM

by omofowowe

9

6667

12/20/2009 9:56 AM how to select contactor for star delta starter??

by fmalura

Last post: 05/25/2012 5:20 AM

by ranjithkrishna

29

6568

12/29/2006 12:28 PM Conversion of KWh to KW

by Dr.Sreenath

Last post: 09/06/2010 7:30 AM

by Anonymous Poster

50

6526

04/27/2007 1:44 AM TIE Breaker & Bus Coulper

by Anonymous Poster

Last post: 06/21/2010 8:45 AM

by Anonymous Poster

7

6500

04/20/2007 3:40 AM Trefoiling of single core cables for 3 Phase AC power

by Anonymous Poster

Last post: 05/12/2010 2:36 PM

by Anonymous Poster

11

6325

01/19/2010 7:35 PM Transformer Turn Ratio (TTR) Testing

by rabat

Last post: 01/22/2015 12:17 PM

by Vijai

13

6311

03/05/2008 10:18 AM Replacing an NPN Sensor with a PNP Sensor

by dg1258

Last post: 06/01/2013 4:14 PM

by Shyam

17

6298

11/30/2010 11:50 PM Different Between Bus Riser and Bus Coupler?

by Almansoura

Last post: 12/01/2010 6:21 AM

by Aseer

4

6217

09/17/2010 12:15 AM Induction Motor, Inrush Current vs. Locked Rotor Current

by HHung

Last post: 03/15/2021 3:57 AM

by PWSlack

15

6206

09/14/2011 8:23 AM VFD With Bypass Star/Delta Starter

by kra101

Last post: 01/15/2012 11:53 AM

by JRaef

35

6166

12/27/2008 4:26 AM AVR GENERATOR BOARD KEEPS BLOWING

by Mally

Last post: 08/10/2010 1:33 AM

by Anonymous Poster

45

6109

09/28/2008 11:15 PM What is Creepage Distance?

by Anonymous Poster

Last post: 12/01/2014 3:43 AM

by dhayanandhan

7

5982

08/31/2008 7:56 PM Reversing rotation of AC motor

by redneckinjunear

Last post: 10/06/2011 7:00 PM

by jpenrose

11

5944

01/28/2009 2:59 AM How to Repair a Partial Core Stator Generator

by rita.triani

Last post: 02/04/2011 3:12 PM

by Siswanto

14

5916

05/31/2012 3:00 AM CT Burden Calculation

by amoldeshpandeg

Last post: 02/20/2020 2:21 PM

by SATISH7233

6

5873

06/30/2010 7:51 AM VFD and Motor Power Calculation

by Aghvel Niazi

Last post: 03/28/2017 5:54 PM

by Javed Pathan

10

5858

10/24/2006 6:02 AM How to Calculate Capacitor Discharge Resistor Values?

by habib haider

Last post: 01/08/2011 6:44 AM

by Anonymous Poster

18

5789

11/20/2009 4:28 PM How to Draw Schematics in Microsoft Word

by TVP45

Last post: 01/13/2010 8:25 AM

by Nigh

33

5765

09/20/2006 11:31 AM IP 65 vs. NEMA 4X

by marvin.zimmerman

Last post: 03/18/2009 10:26 AM

by Anonymous Poster

9

5733

11/15/2009 2:05 AM Earthing resistance as per IE rule

by Anonymous Poster

Last post: 01/06/2011 4:06 AM

by Anonymous Poster

21

5730

07/28/2007 5:34 AM bus bar rating

by bhupender

Last post: 10/17/2017 12:47 PM

by dhayanandhan

15

5707

06/03/2007 2:50 AM Star-Delta Connections ...

by zohaibmoazzam

Last post: 05/12/2010 1:32 PM

by swapnajit99

20

5613

05/04/2007 10:10 PM Hub Motor for Electric Vehicles(Rotor on the outside)

by seshkanuri

Last post: 11/22/2016 7:03 AM

by SherThapa

27

5598

08/20/2008 11:57 PM How to Build a Generator from a Car Engine

by luisdmk46

Last post: 09/22/2016 2:27 PM

by StavoV

22

5452

02/11/2010 7:24 AM Transformer Oil Break Down Voltage (BDV)

by Anonymous Poster

Last post: 07/03/2011 2:58 PM

by Manas Das

7

5395

04/12/2011 8:33 AM Locked Rotor Withstand Time (LRWT)

by Candlez

Last post: 01/29/2022 11:42 PM

by 7anoter4

24

5373

05/09/2012 1:54 PM Wiring Octal 11-pin Latching Relay

by JonnyRock

Last post: 05/17/2012 7:03 PM

by JonnyRock

38

5196

01/31/2009 6:04 PM Power Transformer testing - tan delta test

by myn1996

Last post: 04/19/2011 1:39 AM

by stefanb2hv

11

5195

12/27/2010 11:42 PM Generator Under Voltage

by zawa

Last post: 02/12/2017 3:53 AM

by dhayanandhan

23

5194

07/01/2009 12:43 PM Spring Charging in Circuit Breakers

by gova1467

Last post: 08/28/2013 6:44 PM

by Dmitriy_Stepanov

10

5193

02/05/2010 8:02 PM Resistance value of 10HP , 3 phase , 415v , 50hz , induction motor

by jayesh100375

Last post: 07/12/2018 7:39 AM

by Rajkumarbv1967

5

5174

01/03/2008 5:35 AM Bus Bar Calculation

by still learning

Last post: 01/04/2010 3:19 AM

by shanbhag

18

5167

12/11/2007 7:51 AM How Far Can You Run 24Vdc Before You Lose Voltage

by Anonymous Poster

Last post: 12/16/2007 1:10 AM

by user-deleted-13

38

5145

12/02/2008 11:39 AM MCCB Sizing Calculation

by Johnsly

Last post: 01/18/2011 12:04 AM

by Anonymous Poster

11

5127

05/02/2014 6:37 AM Power Supply DC-DC Step Up Converter Problem

by tester123

Last post: 01/04/2016 11:05 AM

by PetarP

31

4994

01/28/2009 12:35 PM How to Use 220V Appliances in the U.S.

by Anonymous Poster

Last post: 02/11/2011 6:24 PM

by Anonymous Poster

24

4967

07/15/2008 10:02 AM Reversing star-delta motors

by PWSlack

Last post: 07/04/2012 12:41 PM

by dhayanandhan

26

4923

09/15/2014 10:49 AM How To Identify Unmarked 6-Lead Three-Phase Motor Leads

by mike quartucci

Last post: 09/17/2014 5:55 AM

by Andy Germany

18

4921

08/01/2010 6:21 AM why Current transformer Star point is grounded

by shiva_pvv@yahoo.co.in

Last post: 10/16/2010 11:10 AM

by shiva_pvv@yahoo.co.in

6

4847

05/10/2010 9:40 AM Difference Between Earth Fault Relay and Earth Leakage Relay?

by Anonymous Poster

Last post: 03/29/2015 12:46 PM

by sugina

4

4832

04/09/2007 10:12 PM Three Phase To Single Phase

by Polyethylene

Last post: 04/14/2007 11:37 PM

by jmueller

14

4826

01/23/2009 2:39 AM Can I Use a Washing Machine Motor as an Alternator?

by Anonymous Poster

Last post: 04/19/2009 4:33 AM

by Anonymous Poster

32

4796

05/19/2007 9:14 AM Difference Between Making And Breaking Capacity Of Circuit Breaker

by mohd12_meeran

Last post: 07/29/2010 1:58 AM

by Anonymous Poster

10

4788

05/17/2010 10:07 AM Calculation of relay settings

by Anonymous Poster

Last post: 07/05/2011 5:53 AM

by smaltesh

10

4708

02/03/2014 6:58 AM MCCB Tripping While Star to Delta Changeover

by stanessuresh

Last post: 12/06/2016 2:39 AM

by Olujimielegbede

10

4693

10/30/2006 10:11 PM Which is More Dangerous: AC or DC?

by dayakar

Last post: 03/23/2012 12:08 PM

by Leonf

69

4681

11/02/2009 3:43 AM Multiplication Factor for Energy Meters,

by Anonymous Poster

Last post: 11/02/2009 3:09 PM

by CJMcGill

3

4665

04/05/2009 4:40 AM vector group selection of generator transformer

by jaswant

Last post: 02/22/2014 11:09 AM

by dhayanandhan

16

4641

01/12/2010 11:58 PM Load Break Switch vs. Circuit Breaker

by Anonymous Poster

Last post: 06/27/2010 1:49 PM

by Anonymous Poster

9

4639

04/21/2009 7:20 AM M.F in Electricity bill

by dineshpandit80

Last post: 06/09/2010 11:53 PM

by Anonymous Poster

5

4634

11/22/2007 7:16 PM Convert two phase power to 3 phase power using a AC 3Phase Motor

by Mechanic82973

Last post: 11/25/2007 8:30 AM

by Mechanic82973

14

4631

11/03/2006 9:44 AM Electrical Load demand calculations

by Shashi

Last post: 09/05/2009 3:36 PM

by jraubsr

6

4605

09/15/2015 12:16 AM Shaft Power / Absorbed Power

by sarakana

Last post: 10/16/2017 10:39 AM

by Codemaster

35

4564

01/24/2007 7:31 AM Resistance of LED's

by horace40

Last post: 01/13/2011 12:10 AM

by Anonymous Poster

40

4555

02/16/2014 8:36 AM AVR for 100 KVA Alternator

by sude

Last post: 12/16/2015 7:10 PM

by cariel08

44

4542

10/19/2010 3:09 AM Earthing Resistor Calculation

by EMAD CAT

Last post: 10/28/2010 5:13 AM

by Anonymous Poster

7

4542

01/02/2007 2:55 AM I need 1 mA constant current source

by aneeessh

Last post: 08/29/2012 6:15 PM

by Anonymous Poster

20

4528

09/11/2009 2:16 AM One Line Diagram Design

by rabat

Last post: 09/19/2009 5:12 AM

by tootje

10

4508

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