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Discussion Threads

Create Date / Rating Title / Poster	Last Post	Comments	Views
05/12/2017 9:36 AM CVT by kasrop	Last post: 05/15/2017 11:07 AM by PeterT	5	378
05/13/2017 10:10 AM Step Up Transformer by Brown Sebastian	Last post: 05/15/2017 5:15 AM by Brown Sebastian	10	332
05/11/2017 1:54 AM RCCB Tripping After Change of Supply by Anonymous Poster	Last post: 05/14/2017 3:25 PM by 67model	11	1357
04/22/2017 12:00 AM Definition of Terms by deanpavil	Last post: 05/14/2017 12:36 AM by Andrew Westman	13	462
04/22/2017 6:10 AM Automatic Transfer Switch by Sankalp Mathur	Last post: 05/10/2017 12:07 PM by James Stewart	5	358
04/13/2017 2:22 PM Transformer Inrush Current by Richard Matsiko	Last post: 05/10/2017 6:02 AM by Alanvaderi	8	480
03/07/2017 4:50 AM Number of Holes for Busbar / Cable Termination on Product by Jignesh Shah	Last post: 05/10/2017 3:57 AM by Alanvaderi	9	496
04/29/2017 6:57 AM Circuit Breakers Question by Rabaacca	Last post: 05/10/2017 2:05 AM by Alanvaderi	24	586
12/09/2009 6:49 AM Sizing a Circuit Breaker by Anonymous Poster	Last post: 05/09/2017 10:35 AM by dhayanandhan	5	515
12/13/2016 10:08 AM Model GE 752 Shunt Standard Torque by smontana	Last post: 05/08/2017 5:26 PM by rwilliams	9	289
05/03/2017 1:50 AM How to Identify 3 Phase Energy Meter Multiply Factor by mukeshkumar5609	Last post: 05/08/2017 4:12 PM by James Stewart	15	1021
05/07/2017 1:19 PM VRF System by Anonymous Poster	Last post: 05/08/2017 11:33 AM by James Stewart	2	298
05/05/2017 12:16 PM ISC for IEEE 519 by smontana	Last post: 05/06/2017 3:31 AM by 7anoter4	11	339
02/27/2017 4:09 AM Advanced Lightning Protection System by Anonymous Poster	Last post: 05/04/2017 4:48 PM by rwilliams	9	295
04/30/2017 2:22 AM LC Filter for Three Phase & Single Phase Thyristor DC Converter by pssdeepak	Last post: 05/02/2017 3:22 AM by PWSlack	13	699
04/27/2017 12:59 AM IGBT Failure by sahan.samaranayake	Last post: 05/01/2017 1:51 AM by sahan.samaranayake	11	389
04/24/2017 7:01 AM Problem Transmission Line in ETAP by muhammadhamdy	Last post: 04/30/2017 10:48 AM by 7anoter4	10	1251
04/27/2017 10:36 AM UL508A 3 Phase Color Code? by Rscott9399	Last post: 04/28/2017 8:44 AM by Phys	26	2573
04/26/2017 2:18 PM PT Connection by coolyaar	Last post: 04/28/2017 4:20 AM by 7anoter4	8	387
11/04/2008 10:07 AM Polar-Mohr Guillotine by Tom Sweeney	Last post: 04/25/2017 6:22 PM by cuadra	54	4273
09/10/2016 8:30 AM Bus Tie Duct Voltage drop by uhammad Atif Irshad	Last post: 04/25/2017 1:39 PM by welderman	30	452
04/20/2017 10:42 AM Analog Input on CPU by brandoncosta	Last post: 04/24/2017 11:08 AM by James Stewart	15	441
04/21/2017 2:02 PM Effect of Power Factor Correction in Fuel Consumption by Mogtaba elkhider	Last post: 04/24/2017 9:13 AM by James Stewart	11	1300
11/21/2012 5:39 AM What is the Normal Current Through NGR of 25 MW, 11 KV TG Set by satendrakumart	Last post: 04/24/2017 7:38 AM by Anonymous Poster	9	249
03/17/2017 12:40 AM Controlling Voltage and Phase Given Variable Source by gutmonarch	Last post: 04/22/2017 11:56 AM by Andrew Westman	8	296
04/20/2017 3:18 AM Shear Pin Relay by Anonymous Poster	Last post: 04/21/2017 4:23 PM by snowboy	13	462
04/19/2017 2:48 AM AVR Interrupt Service Routine Not Executing as Fast as Expected by zxcvb	Last post: 04/21/2017 9:38 AM by James Stewart	17	520
04/19/2017 11:53 PM Current Unbalance in Motor When Connected to Siemens Masterdrive by nasr baloch	Last post: 04/20/2017 11:32 AM by James Stewart	4	339
04/13/2017 3:40 AM Transformer Inrush Tripping by roykav	Last post: 04/19/2017 10:40 PM by roykav	14	336
09/03/2011 6:01 AM Leading Power Factor Problem by krishnamraju	Last post: 04/19/2017 12:21 PM by M B S AGARWAL	29	2228
04/15/2017 9:25 AM Siemens Bus Bar Protection 7SS5.. by Richard Matsiko	Last post: 04/18/2017 11:00 AM by rwilliams	2	361
01/23/2011 10:40 PM Capacitor Bank by sandeep.kv	Last post: 04/16/2017 11:43 AM by dhayanandhan	18	490
04/13/2017 10:21 AM Generator Bus PT by coolyaar	Last post: 04/15/2017 11:14 AM by 7anoter4	9	774
04/13/2017 8:28 AM % Xd to Ohms by smontana	Last post: 04/15/2017 12:43 AM by 7anoter4	16	856
04/13/2017 10:06 AM Zero Sequence CT by coolyaar	Last post: 04/14/2017 1:12 PM by rwilliams	13	492
04/12/2017 1:52 AM 400kV Voltage Transformer Testing by pansal	Last post: 04/13/2017 4:41 PM by rwilliams	4	314
04/08/2017 6:08 AM ACS850 VFD Reference Meet Problem by AA039	Last post: 04/12/2017 4:12 PM by rwilliams	28	597
04/10/2017 7:43 AM Short Circuit Protection by Anonymous Poster	Last post: 04/12/2017 12:34 AM by Anonymous Poster	10	376
04/08/2017 11:16 PM VFD Output by Anonymous Poster	Last post: 04/10/2017 1:44 PM by James Stewart	4	263
04/01/2017 4:42 PM How to Calculate Positive and Zero-Sequence Resistance and Reactance? by esbolpro	Last post: 04/10/2017 12:52 PM by 7anoter4	7	1095
04/07/2017 5:23 AM Calculating KVA by John365	Last post: 04/09/2017 9:11 AM by Codemaster	18	540
04/06/2017 3:11 PM Capability Curve 3512C by smontana	Last post: 04/09/2017 4:44 AM by 7anoter4	5	461
04/07/2017 4:26 AM HVC by luyombya	Last post: 04/08/2017 12:00 AM by tonyhemet	8	352
04/05/2017 5:35 PM Contactor Relay Coil Current Requirements by wannabecontroller	Last post: 04/07/2017 3:18 PM by wannabeControlguy	19	530
03/31/2017 11:59 AM Short Circuit Current by kasrop	Last post: 04/07/2017 10:41 AM by RAMConsult	14	446
04/05/2017 12:21 AM Problem in Kollmorgen Servo Drive Servostar 620 by Signode	Last post: 04/06/2017 3:05 PM by Crabtree	4	344
04/05/2017 11:53 PM Computing DC Link Parameters by Anonymous Poster	Last post: 04/06/2017 12:14 AM by jack of all trades	1	299
04/01/2017 2:13 PM Shielded vs Unshielded Cable for VFDs by Rscott9399	Last post: 04/05/2017 2:02 AM by JRaef	16	1601
03/07/2017 4:51 AM Different Types Of Factors in LV System by Jignesh Shah	Last post: 04/04/2017 6:16 PM by Anonymous Poster	7	371
04/02/2017 9:51 AM Error in Amplifier Circuit Input 60v by trungsave96	Last post: 04/04/2017 12:03 PM by toilet busy light	20	387
04/03/2017 6:08 AM Type Of Sensor Selection by Anonymous Poster	Last post: 04/04/2017 3:18 AM by TonyS	10	320
03/23/2017 10:56 AM Safety Relay by wannabecontroller	Last post: 04/01/2017 3:27 PM by Rscott9399	27	313
03/25/2017 11:03 PM Laptop Battery Life by gutmonarch	Last post: 04/01/2017 11:07 AM by dkwarner	28	1161
06/25/2012 1:19 PM Semiconductor Fuses Are Blowing Frequently by pstanwar9229	Last post: 04/01/2017 4:52 AM by Cork	14	1107
04/10/2014 8:40 AM Low Voltage Door Closed Light by firemn	Last post: 03/30/2017 4:42 AM by toilet busy light	54	660
03/27/2017 8:10 AM Control of Three Pumps Using Ladder Logic by Anonymous Poster	Last post: 03/30/2017 12:46 AM by Anonymous Poster	25	1978
03/15/2017 6:08 AM How To Interpret TAN DELTA Test Result In A Rotating Machine by nvrsrinivas	Last post: 03/29/2017 1:15 PM by manindra	4	1005
03/28/2017 7:28 PM MCB Calc. by Anonymous Poster	Last post: 03/29/2017 12:26 PM by PWSlack	7	348
03/28/2017 6:55 AM 347V in Canada Used For 3 Phase Or One Phase? by melissadhang	Last post: 03/29/2017 11:07 AM by rwilliams	13	1367
03/24/2017 11:36 AM Anyone Ever Seen a 16-position Rotary Switch with 4-bit Binary Output? by wannabecontroller	Last post: 03/28/2017 2:06 PM by jhhassociates	27	704
03/26/2017 8:01 AM Motor Protection by sobanbabu76	Last post: 03/27/2017 9:24 PM by sobanbabu76	8	379
03/23/2017 10:47 AM Generating 110v 15 Amps From Farm Tractor by Em Are	Last post: 03/25/2017 4:25 PM by tcmtech	24	455
03/17/2017 3:41 PM Synchronization by coolyaar	Last post: 03/25/2017 12:41 PM by 67model	7	220
03/23/2017 11:07 AM Carbon Brushes by Andrew Rushton	Last post: 03/25/2017 8:37 AM by TonyS	24	943
03/22/2017 8:59 AM Comparison Of Surge Comparison, Polarisation Index and Tan Delta Tests by nvrsrinivas	Last post: 03/23/2017 4:53 AM by PWSlack	3	629
07/04/2011 11:22 PM UPS Transformer ?!? Specifications - Power Supply? by tkc100	Last post: 03/23/2017 1:56 AM by Wes2859	26	11322
10/17/2012 9:41 PM Electro Static Precipitaor (ESP) by anandchy	Last post: 03/23/2017 12:29 AM by Viral Mistry	6	745
03/21/2017 10:31 AM Control vs Relay Panel by coolyaar	Last post: 03/22/2017 3:29 PM by James Stewart	13	630
03/15/2017 7:21 AM Energy Efficiency Calculations by nvrsrinivas	Last post: 03/22/2017 11:59 AM by Codemaster	13	354
03/19/2017 2:47 AM Power Generation by kasrop	Last post: 03/20/2017 2:54 PM by James Stewart	6	378
03/19/2017 4:06 PM Looking For a Graphic Co-Processor for My Boards by marcot	Last post: 03/20/2017 2:22 PM by marcot	8	807
02/05/2017 9:29 AM Induction Motor Trips While Shifting Star to Delta Connection by sudarshan	Last post: 03/19/2017 10:28 PM by jmueller	12	4802
03/16/2017 2:52 PM Reverse Power Relay (RPR) for 15 kW solar PV by rogerxia	Last post: 03/17/2017 10:16 PM by RAMConsult	6	551
03/15/2017 9:48 AM Is The Motor Delta Or Wye & How To Test It? by 1capybara	Last post: 03/17/2017 1:31 PM by RAMConsult	18	1061
03/15/2017 2:00 AM Transformer 1 Phase to 3 Phase by Anonymous Poster	Last post: 03/17/2017 10:53 AM by daveoliver	10	456
03/15/2017 1:55 PM Variable Frequency Drive. Energy Consideration by Anonymous Poster	Last post: 03/16/2017 11:16 AM by James Stewart	21	362
07/29/2008 9:25 AM preventing PV Inverter Backfeed into Grid in NYC by wjwlitespeed	Last post: 03/15/2017 8:57 PM by rogerxia	14	890
03/14/2017 9:23 AM Control System for Hydro Generator by Anonymous Poster	Last post: 03/15/2017 8:39 PM by rwilliams	17	291
03/14/2017 6:03 AM Programming by Anonymous Poster	Last post: 03/15/2017 1:49 PM by rwilliams	13	277
03/08/2017 11:47 AM Measure of Power Line Induced Voltage by engilis	Last post: 03/14/2017 9:30 AM by IQ	9	333
03/09/2017 10:31 AM DC LED Lighting by ravipra01	Last post: 03/14/2017 8:38 AM by James Stewart	17	450
03/10/2017 9:11 AM Replacing MR On Load Tap Changer. by Tops	Last post: 03/13/2017 5:12 PM by PWSlack	4	334
03/02/2017 8:53 PM Is PLC Programming a Real EE Profession? by wannabecontroller	Last post: 03/13/2017 10:22 AM by daveoliver	84	1171
01/08/2011 10:58 AM Motor Starting Problem by ka.jaison	Last post: 03/11/2017 5:58 AM by kvsridhar	27	845
03/07/2017 4:49 AM Making Capacity of an Air Circuit Breaker by Jignesh Shah	Last post: 03/11/2017 5:56 AM by kvsridhar	7	225
03/07/2017 4:45 AM Clarification on Trip/Non-Trip Bands as per IEC - Product Specific by Jignesh Shah	Last post: 03/11/2017 3:35 AM by 7anoter4	1	223
03/09/2017 3:58 AM Transformer Problem by Anonymous Poster	Last post: 03/10/2017 10:15 PM by Simon Wan	5	391
02/24/2017 5:14 AM Latching Push-Button Initial State by Stric_Matic	Last post: 03/10/2017 1:40 PM by 67model	13	384
12/18/2007 1:19 AM Generator Differential and Earth Faults by rangacharya	Last post: 03/09/2017 11:17 AM by Ekolo	8	622
02/12/2017 9:00 AM Oil Leakage by ASSER	Last post: 03/08/2017 11:50 AM by James Stewart	49	521
03/07/2017 4:48 AM Impulse Withstand Voltage of LV Product by Jignesh Shah	Last post: 03/08/2017 3:34 AM by Simon Wan	2	391
03/07/2017 4:46 AM Optimum Supply Frequency by Jignesh Shah	Last post: 03/07/2017 8:00 PM by JRaef	3	246
03/04/2017 2:14 AM How to Repair a Small Leak in a Transformer Oil Cooling Radiator? by Anonymous Poster	Last post: 03/07/2017 2:50 PM by engilis	13	604
01/25/2017 12:34 AM Change Over Power Contactors by Anonymous Poster	Last post: 03/07/2017 5:01 AM by Jignesh Shah	21	455
01/14/2017 10:08 AM Selection of Upstream Breakers by Anonymous Poster	Last post: 03/07/2017 4:57 AM by Jignesh Shah	13	278
03/06/2017 3:53 AM Malfunctioning of 700VA 230V Inverter by J.SADASIVAM	Last post: 03/07/2017 1:25 AM by Ivanov327950	5	394
03/04/2017 3:04 PM CT Secondary Earthing by ASSER	Last post: 03/06/2017 3:40 PM by 67model	4	773
03/04/2017 10:26 AM Start a PM 3KW DC Motor Without Controller by Jumaran	Last post: 03/06/2017 12:32 PM by Jumaran	9	273
03/04/2017 3:28 AM The Earthing Resistance by omar.algariri	Last post: 03/06/2017 11:58 AM by PWSlack	6	443
03/01/2017 7:53 PM Presentation of Microgrid by hitasb	Last post: 03/06/2017 7:35 AM by Torqued	5	338

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