In an effort to make the items in this area easier for Members to reference, this "Menu" contains links to the Articles and Schematics found within the Technical Reference Section.
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Recently Posted Topics:
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* New Items As Of February 8th, 2015:
#1:Basic Derating Examples#2:Two Motor Start-Stop Drawing#3:Misc. Transformer Schematics#4:Example Panel Schedules - Per Thread at NEC Area---end of 02-08-2015 listings---
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* New Items As Of December 17th, 2011:
#1:Load Calculations Examples - Multi Family Dwelling#2:Single Phase 3 Wire Transformer Animated GIFAnimation deplicting Currents and Mag Flux for a 1 Phase 3 Wire Transformer in operation.
#3:Electrical Planset - Refrigeration Equipment(Note: This Page contains several Plan Sheets, saved as PDFs, which may be viewed on-line or via download).
---end of 12-17-2011 listings---
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* New Items As Of March 19th, 2010:
Transformers and Feeders: 3 Phase 4 Wire WyeTransformers and Feeders: 3 Phase 3 Wire WyeTransformers and Feeders: 3 Ph. 4 Wire Closed DeltaTransformers and Feeders: 3 Ph. 3 Wire Closed DeltaTransformers and Feeders: 3 Ph. 4 Wire Open DeltaTransformers and Feeders: 3 Ph. 3 Wire Open DeltaTransformers and Feeders: 1 Phase 3 WireTransformers and Feeders: 1 Phase 2 WireTransformers and Feeders: SDS TextTHD Examples #1 of 2: F32T8THD Examples #2 of 2: T5HO----------------------------------------------------------
* New Items As Of September 16th, 2009:
Basic Start / Stop AC Motor Control DwgsWye-Delta Motor Starting SchematicsWye-Delta Connection Details-----------------------------------------------------------
* New Item As Of July 19th, 2009:
NEMA Motor Connection Schematics - Links----------------------------------------------------------
* New Items As Of October 22nd, 2008:
PSC Motors - SchematicsSimple Designated Circuit Drawings--------------------------------------------------------
* New Items As Of May 3rd, 2008:
SDS Transformer Grounding DrawingsNew: 4 Wire Delta Transformer Drawings - Open DeltaNew: 4 Wire Delta Transformer Drawings - Closed DeltaNew: 3 Phase 3 Wire Corner Grounded Delta DrawingsNew: 3 Phase 3 Wire Center Tap Grounded Delta DrawingsNew: 3 Phase 3 Wire Ungrounded Delta DrawingsNew: 3 Phase 4 Wire Wye Transformer Drawings------------------------------------------------------
* New as of May 13th, 2007:
Pictures of RW and TW Insulated Conductors--------------------------------------------------------
* New as of January 26th, 2007:
International Color Codes-1st draft* New as of November 27th, 2006:
U.K. - Old IEE Wiring Regs. Issue Dates * New As Of July 15th, 2006:
Touch Control Switch Circuit * New As Of July 5th, 2006:
Time Delay Relay Lamp Puzzle!!! Nice Drawing Lighting A Tunnel * New As Of May 12th, 2005:
Inside A Current Limiting Type Circuit Breaker C84 Annex A - Secondary Grounding Illistrations * New As Of December 19th, 2004:
12 Lead Stator Generators Schematics * New As Of March 7th, 2004:
Basic LAN Map #1 * New As Of January 18th, 2004:
ECN Glossary * New As Of November 22nd, 2003:
Components Listings * New As Of October 30th, 2003:
Conversion Factors and Tables * New As Of September 20th, 2003:
Schematics For: 1Ø Split Phase Resistance Start Motors-Series 1 Schematics For: 1Ø Split Phase Capacitor Start Motors-Series 2 Schematics For: 1Ø PSC Motors-Series 3 Schematics For: 1Ø Split Phase Cap Start/Run, 2 Speed and Shaded Pole Motors-Series 4 Schematics For: Commutator type AC and DC Motors * New As Of September 12th, 2003:
Member Contributed Motor Schematics-1 of 2 Member Contributed Motor Schematics-2 of 2 * New As Of March 8th, 2003:
Corner Grounded 3Ø 3 Wire Delta * New as of January 8th and January 26th, 2003:
3 way and 4 way Switchloops Schematics * New as of December 2nd, 2002:
Basic Planset Symbols-1 * New as of October 18th, 2002:
Transformer Drawings submitted by ECN Member uk systems drawings - images only TVSS + AC filter schematics Grounding Transformers- ZigZags AC Dynamic Lowering Hoist Control Residential Distribution Systems * New as of September 27th, 2002:
Voltage Boost Transformer Schematics-1 Phase Voltage Boost Transformer Schematics-Open Delta Connection Voltage Boost Transformer Schematics-Wye Connection ============================================================
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Here are topics posted prior to September 27th, 2002 in this area. Click on the Hyperlink to access that topic:============================================================
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Panel Schedules Schematics reposted from Theory Section Buck/Boost/Choke + Polarity Test Schematics 1 phase transformer drawings - part 1 1 phase transformer drawings - part 2 2 phase transformer schematics 3 phase delta transformer schematics 3 phase wye transformer schematics 6 and 9 phase transformer schematics simple AC filters simple 5 wire DC systems IG details #1 Locomotive Prime Mover Shots Locomotive Traction Motor Shots Trackside Signal Eq. 1 Simple 3 wire DC circuits UK power systems #1 thru #4 Simple Electrical Formulas #1 Simple Circuit Calcs #1 Basic Circuits #1 - Series Basic Circuits #2 - Parallel Basic Circuits #3 - Series-Parallel and Volt Dividers Series AC circuits - basic Parallel AC circuits - basic Series-Parallel AC circuits - basic AC Motor Control Balanced Power Schematic GFI Wiring Schematic AC Incandescent Lamp Dimmers 1 phase motor drawings #1 3 phase Wye motor drawings 3 phase Delta motor drawings 2 phase motor drawings A little humor Inverter Schematics Full Wave Rectifier - 3 phase input 1 phase rectifier schematics Dynamic Braking for Induction Motors Forward / Reverse 3 phase motor control Start / Stop 3 wire control Panel Schedule - Test Post HID Ballasts: CWA HID Ballasts: CW 1 and 2 Lamp HID Ballasts: CW / REG-LAG HID Ballasts: High Reactance type HID Ballasts: Reactor Type Instant Start Ballasts Lead/Lag Ballasts Preheat Ballasts Series Sequence Ballasts F40T12 Lamp Ballast 2 way 1st and 2nd order crossovers 2 way 3rd order crossovers 2 way 4th order crossovers 3 way 1st order crossover 3 way 2nd order crossover 3 way 3rd order crossover 3 way 4th order crossover 2 way 4th order crossover w/ L pad 3 way crossover - 4th order W/ Z eq. =============================================================
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< END >
Hope this list is useful.
Scott S.E.T.
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contact the Webmaster at:
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Last edited 02.08.2015 by S.E.T. regarding:
Added new links for Dates:
* 07-19-2009,
* 09-16-2009,
* 03-19-2010,
* 12-17-2011,
* 10-15-2012
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