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Discussion Threads

Create Date / Rating Title / Poster	Last Post	Comments	Views
08/11/2026 8:37 PM How do we move EMC from a final compliance test to a sequence of engineering design gates? by stancermtl	Last post: 08/11/2026 10:29 PM by Brave Sir Robin	1	3
08/09/2026 9:47 PM ONAN Transformer Radiator Oil Leak by Mathias Malandu	Last post: 08/09/2026 9:47 PM by Mathias Malandu	0	22
09/09/2018 9:30 AM Concealed PVC Conduits Running on Wall by mannsyed	Last post: 08/04/2026 6:20 AM by anyother	23	473
08/03/2026 10:52 AM IEC 61439-2 - Form of Separation - Metallic Versus Non Metallic Barrier by Anonymous Poster	Last post: 08/03/2026 10:52 AM by Anonymous Poster	0	26
04/17/2010 6:53 AM HV substation design and calculations manual by ikhanuk	Last post: 08/03/2026 7:27 AM by VSS POWER	7	834
07/13/2026 10:27 PM Paradigm Shift on Substation Protection by Rockraiden21	Last post: 07/15/2026 7:24 AM by gideon	1	150
04/17/2011 11:11 AM Improving Earthing by mir imran altaf	Last post: 07/06/2026 5:37 AM by jabir moulvi	13	453
06/29/2026 7:06 AM HV Switchgear - Internal Earth Bar by Anonymous Poster	Last post: 06/30/2026 4:41 PM by rwilliams	3	77
10/10/2007 8:51 AM Searl Effect Generator by Anonymous Poster	Last post: 06/29/2026 5:32 AM by Niveditasharma	442	3568
06/05/2012 2:35 AM Electrical Conduction of Grease at Low Temperatures by Anonymous Poster	Last post: 06/28/2026 7:53 AM by CHRIS_K	7	255
06/23/2026 9:44 AM Converting Active Pulse Output to Passive by REH	Last post: 06/27/2026 3:34 PM by Rixter	12	138
06/22/2026 7:16 AM Software Required for SLC 5/03 Allen Bradley PLC by DE ENG	Last post: 06/23/2026 3:03 AM by rwilliams	1	28
01/23/2026 12:47 PM Power Outage is Expected, Hooking up a Generator by Labyguy	Last post: 06/19/2026 5:52 AM by evanmjones	14	256
06/15/2026 8:09 AM Motorized MCCB by Selk	Last post: 06/16/2026 9:52 AM by rwilliams	1	74
03/04/2026 10:07 AM Trip Circuit Supervision and IRF by Selk	Last post: 06/16/2026 8:26 AM by VSS POWER	2	123
12/09/2025 12:05 AM Low Voltage Switchboards by Selk	Last post: 06/16/2026 7:57 AM by VSS POWER	2	131
06/01/2026 10:04 AM Emergency Light Fixture by Selk	Last post: 06/12/2026 10:36 AM by Calnet42	5	156
06/02/2026 12:21 AM Form 4A — LV Panel — Rotary Handle by Anonymous Poster	Last post: 06/03/2026 12:53 AM by rwilliams	1	41
04/21/2026 9:03 AM Load Sharing Communication Method by Anonymous Poster	Last post: 05/24/2026 11:44 PM by rwilliams	2	110
05/04/2026 11:16 AM Ammeter Location for Star-Delta Starter Circuit by Anonymous Poster	Last post: 05/19/2026 8:53 AM by Vulcan	8	175
05/11/2026 11:41 AM Arc Flash and IP Rating by Anonymous Poster	Last post: 05/11/2026 11:57 PM by rwilliams	1	117
05/07/2026 6:12 AM Undervoltage Relay for Low Voltage Motors by Selk	Last post: 05/08/2026 8:08 AM by vsar	3	75
04/07/2026 5:19 AM Test Terminal Block/Test Switches in MV Switchgear by Anonymous Poster	Last post: 05/03/2026 11:46 PM by rwilliams	2	109
04/27/2026 4:48 AM Tie Breaker Rating by Anonymous Poster	Last post: 04/28/2026 2:49 AM by beancycle	2	102
04/06/2026 9:14 AM VFD - 12 Pulse Transformer - Wye Winding by Selk	Last post: 04/20/2026 9:56 AM by vsar	4	138
04/14/2026 4:46 AM Synch Selector Switch - Auto Transfer Scheme by Selk	Last post: 04/15/2026 12:29 AM by rwilliams	1	56
04/04/2026 11:37 PM Plastic Cover for Low Voltage Breaker by Selk	Last post: 04/13/2026 12:20 PM by mastrsmth	1	81
08/07/2021 2:12 AM Roasted Coffee Bean Storage by Joe Sparky	Last post: 04/11/2026 12:43 AM by Rcrispsolutions	20	421
04/07/2026 5:17 AM Measuring Instrument in Bus Tie - MV/LV Switchgear by Anonymous Poster	Last post: 04/07/2026 5:17 AM by Anonymous Poster	0	36
04/05/2026 7:59 AM EU Regulations for Batteries and Electronic Parts by simke	Last post: 04/05/2026 7:59 AM by simke	0	45
07/17/2013 10:29 PM I Need a Low Fuel Alarm for My Wifes Riding Lawn Mower by tcmtech	Last post: 04/04/2026 7:54 AM by globalworker	218	4500
04/03/2026 10:59 PM PLCs in Electrical Engineering: Reliability and Optimization in Industrial Control Systems by baoanatmt79	Last post: 04/03/2026 10:59 PM by baoanatmt79	0	34
03/25/2026 2:27 AM IEC 62271-200: HV/MV Switchgear - LSC2B by Anonymous Poster	Last post: 03/31/2026 2:04 PM by rwilliams	2	75
03/11/2026 10:06 AM Regavolt Variable Transformer Current by Anonymous Poster	Last post: 03/25/2026 10:01 AM by DiegoLopez	6	132
03/22/2026 7:46 AM Black Star Diesel Generator by ASSER	Last post: 03/22/2026 10:58 PM by rwilliams	3	90
09/09/2020 5:04 PM Copper Bonded Earthing Electrode by Anonymous Poster	Last post: 03/21/2026 6:06 AM by Anonymous Poster	9	206
03/07/2026 6:52 AM Limiting Cable Temperature by Anonymous Poster	Last post: 03/08/2026 6:59 AM by vsar	3	133
02/26/2026 12:43 AM How Do I Set Up Phased Electricity Pricing? by powermeter	Last post: 02/26/2026 4:58 PM by Brave Sir Robin	1	91
02/24/2026 9:31 AM Two Ground Wires in One Terminal - Within a Light Fixture by Selk	Last post: 02/25/2026 7:12 AM by vsar	2	162
02/19/2026 10:47 AM Does a VFD Driven Motor Require Separate Motor Protection Relay? by Anonymous Poster	Last post: 02/20/2026 6:05 AM by Stef	2	76
02/13/2026 3:47 AM Auto Unload Push Button for Generator Breaker Panel by Anonymous Poster	Last post: 02/17/2026 2:36 PM by Brave Sir Robin	3	89
02/11/2026 11:06 PM Twisted Pair Communication Wire by gutmonarch	Last post: 02/17/2026 2:31 PM by Brave Sir Robin	2	135
02/04/2026 2:15 AM Material Request by Dennis81	Last post: 02/16/2026 10:08 AM by redfred	6	107
10/12/2008 4:17 PM Single phasing of squirrel cage induction motor by Substation 15	Last post: 02/16/2026 6:19 AM by truth is not a compromise	10	315
01/06/2026 9:52 PM Two Voltages Combined in a Distribution Board by Anonymous Poster	Last post: 02/16/2026 4:38 AM by Hameleon	4	248
12/12/2007 6:12 AM Operation of Phase Failure Relay by Asitha	Last post: 02/14/2026 4:59 AM by Stef	5	371
02/13/2026 6:29 AM Hitache EC Series Software by Anonymous Poster	Last post: 02/13/2026 6:29 AM by Anonymous Poster	0	31
02/05/2026 9:56 AM ABB- VD4 Circuit Breaker - Closing Circuit Explanation by Anonymous Poster	Last post: 02/11/2026 11:39 AM by Anonymous Poster	2	107
02/07/2026 8:49 AM Small Transformers Earth Fault Protection by Selk	Last post: 02/09/2026 12:59 PM by rwilliams	5	111
01/28/2026 2:52 PM Failure of ACO1 Aerovox Capacitor Model # Z26S4456MT5B1 by Anonymous Poster	Last post: 02/03/2026 11:33 PM by Deefburger	8	268
10/01/2008 11:57 PM GEC Alsthom Alternator by domnicdsilva	Last post: 02/03/2026 3:25 PM by Doorman	12	512
09/14/2009 5:49 AM Restaurant Equipment and Fast Food by Anonymous Poster	Last post: 01/05/2026 4:00 PM by Koos03	5	143
12/27/2025 11:16 PM Door Interlock for MCCB Incomers by Selk	Last post: 12/29/2025 12:24 PM by rwilliams	3	150
11/24/2010 3:38 AM Power Cable - Ampere Rating by Anonymous Poster	Last post: 12/28/2025 6:02 AM by PWSlack	3	396
01/03/2008 5:35 AM Bus Bar Calculation by still learning	Last post: 12/28/2025 5:55 AM by PWSlack	19	5323
07/23/2010 8:46 PM 3 Phase Overload Setting by alan.rotech	Last post: 12/28/2025 5:51 AM by PWSlack	3	309
11/10/2025 4:39 AM Ex Rated Socket/Adapter by Anonymous Poster	Last post: 12/26/2025 10:53 AM by redfred	15	232
12/16/2025 12:44 AM Magnet Coil and Closing Coil in Vacuum Contactor? by Anonymous Poster	Last post: 12/19/2025 11:16 PM by rwilliams	9	159
11/12/2025 3:12 AM After Replacing My Electricity Meter with a Smart Meter, I Feel My Electricity Bill has Increased Significantly. Is this a Common Phenomenon? by powermeter	Last post: 12/19/2025 8:11 AM by Gabriel	19	549
11/20/2025 11:02 PM Cerutti Rotogravure by Vladnew	Last post: 12/12/2025 9:53 PM by Vladnew	2	116
11/25/2025 5:19 PM Before Synchronization — Generator Mode by Anonymous Poster	Last post: 11/28/2025 7:59 AM by Rixter	4	290
11/19/2025 6:56 AM ANSI C12.1 Insulation Test 15 by Anonymous Poster	Last post: 11/19/2025 6:48 PM by Brave Sir Robin	1	115
12/11/2007 7:51 AM How Far Can You Run 24Vdc Before You Lose Voltage by Anonymous Poster	Last post: 11/14/2025 2:41 AM by The Wizard	41	7113
05/12/2015 12:41 AM Sudden Voltage Dips In The Power Supply System Affecting CNC Machines by G P Kadni	Last post: 11/12/2025 7:27 AM by Digital Poonam	32	1286
11/09/2025 11:02 PM UPS Autonomy by Anonymous Poster	Last post: 11/11/2025 10:30 AM by Doorman	6	138
10/16/2025 1:31 AM Where Can Prepaid Electricity Meters be Used? by powermeter	Last post: 11/02/2025 9:37 PM by powermeter	9	279
10/25/2025 6:44 AM Synchronoscope In Lieu of Separate Synch Check Relay by Anonymous Poster	Last post: 10/26/2025 7:58 AM by vsar	2	230
03/03/2017 11:16 AM Replace MX321 AVR with R448 AVR by John365	Last post: 10/18/2025 8:02 PM by Anonymous Poster	8	391
10/07/2025 4:31 PM Variac Tripping MCB Issues by TeslaDog	Last post: 10/12/2025 1:05 PM by Doorman	15	217
10/11/2025 3:23 AM Application Of Prepayment System in Commercial Buildings by powermeter	Last post: 10/11/2025 3:23 AM by powermeter	0	39
10/06/2025 4:22 PM C’mon Doorman, Throw Us A Bone! by Doorman	Last post: 10/10/2025 3:03 PM by Doorman	19	268
09/02/2025 11:55 AM Converting Sinusoidal to Digital by REH	Last post: 09/27/2025 3:47 AM by Vulcan	13	347
09/01/2025 4:34 AM Coherent CO2 Laser by Manfred2	Last post: 09/02/2025 8:44 AM by HiTekRedNek	3	94
08/25/2025 9:54 AM Best Practices for Designing a Microcontroller-Based Power Supply by Alex115	Last post: 08/27/2025 6:05 AM by SolarEagle	4	104
08/10/2025 9:36 AM PV Solar Panel Fire by gutmonarch	Last post: 08/23/2025 3:36 AM by user-deleted-1105	9	345
08/18/2025 9:15 AM RCD at the Incoming Breaker by Selk	Last post: 08/18/2025 9:15 AM by Selk	0	93
09/09/2022 7:36 AM 33 kV and 11 kV line sheet format by Anonymous Poster	Last post: 08/14/2025 3:28 AM by goGreen	5	173
08/10/2025 5:12 AM Best Automatic Transfer Switch by gutmonarch	Last post: 08/11/2025 3:20 PM by redfred	11	246
08/05/2025 5:02 AM Oversized UPS by Anonymous Poster	Last post: 08/11/2025 10:35 AM by gutmonarch	16	296
07/26/2025 7:35 PM General Electric DC300 Drive Failure by Ccit	Last post: 08/09/2025 11:31 AM by Ccit	9	270
02/27/2009 6:45 PM Transmission Line Field Calculator by pwr2thepeople	Last post: 07/19/2025 7:07 AM by dornrobin	9	687
06/04/2025 1:56 AM Confirmed Shut Down Signal - Motor Starter by Selk	Last post: 07/04/2025 10:45 AM by phoenix911	15	577
10/05/2013 7:49 PM Magnetic vs Electrical Propagation Speed by Anonymous Poster	Last post: 06/25/2025 11:29 AM by HiTekRedNek	89	1084
06/03/2025 8:17 AM Tesla Coil Primary Resonance by Manfred2	Last post: 06/06/2025 11:45 AM by Manfred2	8	574
05/12/2015 4:23 AM Harmonic Filter Bank Capacitor Terminals Overvoltage by amitabha0107	Last post: 05/28/2025 3:12 AM by V.Ambarani.	6	587
05/24/2025 12:30 AM Gas Groups - Hazardous Area Equipment by Anonymous Poster	Last post: 05/25/2025 1:06 PM by HiTekRedNek	6	156
05/20/2025 10:04 AM ABB & Siemens - MV Switchgear or HV Switchgear by Anonymous Poster	Last post: 05/23/2025 8:16 AM by HiTekRedNek	2	177
05/14/2025 10:39 AM Cummins K50 Diesel Engine Generator by Anonymous Poster	Last post: 05/16/2025 4:39 AM by The Wizard	2	213
04/23/2025 3:00 PM HV Equipment Discharge in Hazardous Area (Zone-2) by NKA	Last post: 05/14/2025 1:17 PM by WJMFIRE	6	222
05/03/2025 12:43 PM Load Sharing Controller vs PMS by Anonymous Poster	Last post: 05/10/2025 1:23 AM by rwilliams	4	240
04/22/2025 9:09 AM Dual Incomer - Interlock by Anonymous Poster	Last post: 05/08/2025 7:23 PM by HiTekRedNek	10	191
11/14/2006 11:47 AM How Do We Size a Generator? by Anonymous Poster	Last post: 04/29/2025 4:58 AM by PWSlack	4	428
06/08/2009 12:46 AM Calculating Electrical Load by Anonymous Poster	Last post: 04/29/2025 4:38 AM by PWSlack	5	252
10/19/2011 5:31 AM Are the 24Vdc System Can Do the Earth Leakage Protection? by zagu12	Last post: 04/29/2025 3:59 AM by PWSlack	5	141
03/30/2010 12:32 AM 33 KV Earthed Cable Megger Test by Anonymous Poster	Last post: 04/28/2025 6:29 AM by PWSlack	3	170
10/22/2012 12:12 AM Change of a Cable/Conductor Size at a Junction Box in a Long Circuit by Jay Tesla	Last post: 04/28/2025 5:13 AM by PWSlack	22	2737
07/30/2014 7:20 AM T/N/C Switch by arpittare	Last post: 04/28/2025 4:27 AM by PWSlack	22	569
04/02/2025 6:53 AM Full Wave Rectification of Microwave Oven Transformer by Manfred2	Last post: 04/27/2025 1:09 PM by HiTekRedNek	6	275
03/19/2009 6:11 AM Protecting a 220 Kv Switchyard from Lightning by arvind075	Last post: 04/24/2025 4:39 AM by PWSlack	5	313
03/19/2009 5:44 AM How to Test a Cable by ashwin3336	Last post: 04/23/2025 5:08 AM by PWSlack	6	156

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