ECN Electrical Forum
Discussion Forums for Electricians, Inspectors and Related Professionals

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.
Each Subject heading includes a hyperlink, for jumping to that topic.

Alternately, to see all posts in this section, set the dropdown box (upper right side under the "PROFILE"/"REGISTER"/"PREFERENCES"/"FAQS" links) for "VIEW ALL POSTS" to view all postings here.

Check out *******To see all Posts in this area******* for more details on this.

Recently Posted Topics:
*Click on the Hyperlink (Underlined Text) to access that topic*


* New Items As Of March 19th, 2010:

Transformers and Feeders: 3 Phase 4 Wire Wye

Transformers and Feeders: 3 Phase 3 Wire Wye

Transformers and Feeders: 3 Ph. 4 Wire Closed Delta

Transformers and Feeders: 3 Ph. 3 Wire Closed Delta

Transformers and Feeders: 3 Ph. 4 Wire Open Delta

Transformers and Feeders: 3 Ph. 3 Wire Open Delta

Transformers and Feeders: 1 Phase 3 Wire

Transformers and Feeders: 1 Phase 2 Wire

Transformers and Feeders: SDS Text

THD Examples #1 of 2: F32T8

THD Examples #2 of 2: T5HO

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* New Items As Of September 16th, 2009:

Basic Start / Stop AC Motor Control Dwgs

Wye-Delta Motor Starting Schematics

Wye-Delta Connection Details

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* New Item As Of July 19th, 2009:

NEMA Motor Connection Schematics - Links

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* New Items As Of October 22nd, 2008:

PSC Motors - Schematics

Simple Designated Circuit Drawings

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* New Items As Of May 3rd, 2008:

SDS Transformer Grounding Drawings

New: 4 Wire Delta Transformer Drawings - Open Delta

New: 4 Wire Delta Transformer Drawings - Closed Delta

New: 3 Phase 3 Wire Corner Grounded Delta Drawings

New: 3 Phase 3 Wire Center Tap Grounded Delta Drawings

New: 3 Phase 3 Wire Ungrounded Delta Drawings

New: 3 Phase 4 Wire Wye Transformer Drawings

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* New as of May 13th, 2007:

Pictures of RW and TW Insulated Conductors

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* 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.

P.S. If you have anything to contribute here, contact me via the "E-Mail" link on any page;

- Or -

contact the Webmaster at:
[email]webmaster@electrical-contractor,net[/email]

TIA!!!

Last edited 05.13.2010 by S.E.T. regarding:
Added new links for Dates:
* 07-19-2009,
* 09-16-2009,
and
* 03-19-2010

Thanks Scott:

Were have you been? I will be in LA early February.

[This message has been edited by Joe Tedesco (edited 01-05-2003).]

Hi Joe!

I've been so busy bouncing between So. California and the San Francisco / Oakland / San Jose areas with CCTV Installs and surveys, it leaves me with almost no time to even see my Wife!!!
Due to this (and more precise, the Head of the Electrical Division is too dificult to work with) I am considering other Employment options ASAP!

Keep me informed to the Electric West show, so I can visit you there.

I'll check out the NTT site too.

Scott S.E.T.

Just posting to keep this topic active

Scott S.E.T.

10/18/2002
added six (6) new items to the Technical Reference area.

Look for links under:
"* New As Of October 18th, 2002"

Also created discussion threads in user accessible areas, such as the "Electrical Theory And Applications" area and the "General Discussion" area.

Scott S.E.T.

Replying to keep thread active.

P.S. E-Mail address for direct contact is no longer "dtbigred", and should not be used.
E-Mail contact address has been returned to the original "adst at pacbell dot net".

Scott s.e.t.

11-19-2002

Added "Basic Planset Symbols-1" on December 2nd, 2002.

Scott s.e.t.

Refer to General Discussion area for thread regarding this posted item.

Additional items are being added to this list, but will not be linked here until all data has been compiled correctly.

Stay tuned for further developements!!!


Scott S.E.T.

02.04.2003 - Added links for two newly posted items in the reference area (switchloop schematics, color code draft one), along with a link to the "Train Talk" thread in the general discussion area.

Scott35 S.E.T.

02.04.03 23.20.00 PST

Posting to keep thread active

Scott35

Newly posted items in the list (Corner Grounded Delta).

Posting here to keep Menu Active.

Scott35

p.s. want to see if :P works like :razz: does

Hello everyone,

I have been away for awhile, so needed to come in and see what's up in the theory section, plus post a reply here to keep the thread active.

No activity in the theory area, so no need to run moderator duties.

Scott Thompson.

Hi all,

It's been Eons since my last visit!!! Trying to put out fires and keep others from popping up is a major time consumer!!! (referring to issues on jobs!).
Also have been doing Proj. Mgr. tasks, Engineering, CAD drawing, hanging out at the Building Department pulling permits, doing installs, doing support, doing research, and all kinds of broom pushing!

Please let me know where I can rent a Cloning Machine for a few hours!!!

Scott35

Bringing the topic active again!

Scott

Just a "Keep Page Current" posting

Sorry for being away so long

Let me know if you would like to contribute something here!

Scott35

July 12th, 2003

An additional post to keep this topic active.

Also, wanted to thank Paul for posting the latest addendum to the International Color Code thread!

Scott35

New items added 09.12.2003

Scott35

New items added 09.20.2003:

1Ø Motor Schematics (clarifications of existing drawings + additional drawings)

Scott35

Added link in links page for:

***Conversion Factors and Tables: Metric/U.S. Standards***

10.30.2003 - Scott35

Added link in links page for:

***Components Listings***

11.22.2003 - Scott35

Added: "ECN Glossary" text and link.

New 01.18.2004 by Scott35

Added Basic LAN Map #1 on March 7th 2004.

Scott35

Bringing this back to life again, plus mention the "Zig-Zag Grounding Transformers" page has been edited, to include a link for the discussion thread!

Totally left it out back in 2002!

Scott35

Added 12 Lead Stator Generator Schematics, provided by Bjarney
12/19/2004 04.45.00

Scott35

Thanks to Bjarney for the contributions!!!

***BUMP-O' REENOOOO!!!***

Bumping this menu back to top.

Also added links for:

• Time Delay Relay
• Lamp Puzzle!!!
• Nice Drawing
• Lighting A Tunnel
• Inside A Current Limiting Circuit Breaker
• C84, Annex "A": Secondary Grounding Illistrations

Scott35

Added Link for:

• Touch Control Switch Circuit

New 07.15.2006

Scott35

Added Link for:

* U.K. - Old IEE Wiring Regs. Issue Dates

Update to International Color Codes thread for new U.K. standard.

***BUMP***

Check this list for links to certain items.

Scott35

BTW, my E-mail contact address has changed.
Temporary address is:

set eng 0307 at pacbell dot net

Just remove the spaces, and change the words for characters (change the word "at" and the word "dot").

This address will work for a few weeks. Permanent address will be listed ASAP.

Scott35

Scott,

No more need to "BUMP" this thread.
It is a 'Featured' thread now and will stay at the top until we tell it not to.

(look down at the bottom of threads to see the 'Feature' and 'UnFeature' Links)


Bill

Excellent!!!

Another good reason to upgrade the BB Software!

Scott35

Repaired hyperlinks 04-09-2008

S.E.T.