MADCAD.com - The Cloud-Based Reference Library

- Free Trial - Webinar - Feedback

Cart (0)

No items in cart.

Total

There is a technical issue about last added item. You can click "Report to us" button to let us know and we resolve the issue and return back to you or you can continue without last item via click to continue button.

Home

Content

Tour

eLibrary

Store

Not a subscriber? Register for a trial account.

Username:
Password:

Incorrect username/password.

Already a subscriber?

MADCAD.com Free Trial

Sign up for a 3 day free trial to explore the MADCAD.com interface, PLUS access the
2009 International Building Code to see how it all works.

If you like to setup a quick demo, let us know at support@madcad.com
or +1 800.798.9296 and we will be happy to schedule a webinar for you.

Email *
Password *
Confirm *
First Name *
Last Name *
Title
Company Name *
Company Size *
Industry *
Address *
Address 2
City *
State *	Zip *
Country *
Phone *
How did you hear about MADCAD.com? *

Print page(s), starting from page (current page)

Continue to Print

Reset password

Enter your personal account email address to request
a password reset:

Reset password

Enter your account email address to request
a password reset:

Save As:

Are you sure you want to delete this group?

Security check

Please check the following box:

Please login to your personal account to use this feature.

Email:

Password:

Forgot your password?

Remember me for one month

Need a login? Register now.

Please login to your authorized staff account to use this feature.

Username:

Password:

Are you sure you want to empty the cart?

There were no books found for the applied search filters.

CLICK TO START OVER

Report To Us

Please fill the form below so that we can contact you.

Full name*
Email*
Phone

Contact us for a custom quote

Please fill the form below and a member of our staff will contact you shortly. The contents of your cart will automatically be sent to us so we can provide an accurate custom quote.

Company*
Full name*
Email*
Phone

⨯To continue with accurate pricing,
please select your company type below:

Large goverment organizations

Large multi-national corporation (more than $5B annual revenue)

None of the above

Your company has a special pricing case for IEEE.
For pricing, please contact us by filling out the form.

Full name*
Email*
Phone
Your selection

⨯We need your input!

Are you a code official in a jurisdiction with less than 300,000 population?

Yes No

This item is only available for the code officials of jurisdictions less then 300K population.

If you do not meet the criteria item will be removed and you will be able to continue shopping other items.

⨯ We need your input!

Your company has a special pricing case for ASME.
Please make sure the information you provide below is accurate.

Company Industry
Number Of Employees
Revenue

Pricing for the ASME publications in the store is for a 1-4 employee company in Construction Industry with revenue under $500,000.
If correct company info does not match what is publicly available info we will suspend the access and contact you for correction.
Please call 1-800-798-9296 if you have any questions.
If your company has more than 5,000 employee or more than 500 mil revenue please email us at info@madcad.com to receive a special quote, use "ASME Quote" on the subject line.

⨯We need your input!

Are you an existing Madcad user?
If so, please login to continue with the free items in your cart.

Yes No

⨯We need your input!

This bundle includes subscribed items.

Add only currently NOT subscribed items.
Add all items

Cart Warning

Search book title

Search book content

Clear all filters Advanced Search Basic Search

Download File

eLibrary > IEEE Guide for Switchgear--Unit Substation--Requirements (Published) >

IEEE Guide for Switchgear--Unit Substation--Requirements (Published), 2020

This document is reproduced and distributed under license from The Institute of Electrical and Electronics Engineers, Incorporated (IEEE), 445 Hoes Lane, Piscataway, New Jersey 08854 and is protected by United States and international copyright laws and treaties. No part of this publication may be reproduced, in any form and in any medium, without the prior written consent of the IEEE. If you have any questions, please contact MADCAD.com at support@madcad.com or call at 1.800.798.9296.

Expand All

TOC Search:

IEEE Guide for Switchgear--Unit Substation--Requirements (Published), 2020

IEEE Std C37.121™-2020 Front cover
Title page
Important Notices and Disclaimers Concerning IEEE Standards Documents
Participants
Introduction
Contents
1. Overview [Go to Page]
1.1 Scope
1.2 Purpose
1.3 Word usage
2. Normative references
3. Definitions
4. Service conditions [Go to Page]
4.1 General
4.2 Usual service conditions
4.3 Unusual service conditions
5. Transformer section [Go to Page]
5.1 General
5.2 Primary unit substation transformers
5.3 Secondary unit substation transformers
6. Incoming section [Go to Page]
6.1 General
6.2 High-voltage (or primary) bushings on the transformer cover
6.3 Primary terminal chamber on the transformer
6.4 Metal-enclosed bus
6.5 Metal-clad or metal-enclosed switchgear
6.6 Metal-enclosed interrupter switchgear
6.7 Cutout, fuse, or fuse link
6.8 Metal-enclosed switchgear incorporating gas insulation systems
7. Outgoing section [Go to Page]
7.1 General
7.2 Metal-clad switchgear
7.3 Metal-enclosed interrupter switchgear
7.4 Metal-enclosed bus
7.5 Metal-enclosed, low-voltage, power circuit breaker switchgear
7.6 Switchboards
7.7 Motor control centers
8. Ratings [Go to Page]
8.1 General
8.2 Rated power frequency
8.3 Rated kVA
8.4 Rated high voltage (or primary voltage) and rated low voltage (or secondary voltage)
8.5 Rated continuous current
8.6 Rated short-time withstand current
8.7 Rated momentary withstand current
8.8 Rated power frequency withstand voltages
8.9 Rated lightning impulse withstand voltage (BIL)
9. Construction [Go to Page]
9.1 General
9.2 Phase and polarity arrangements
9.3 Phase sequence
9.4 Metal barriers
9.5 Interlocks
9.6 Grounding
9.7 Nameplates
9.8 Drawings, diagrams, instructions
9.9 Coordination
10. Typical arrangements [Go to Page]
10.1 General
10.2 Primary unit substations
10.3 Secondary unit substations
11. Guide for selection, application, installation, and maintenance of unit substations [Go to Page]
11.1 Application considerations
11.2 Unusual service conditions
11.3 System conditions
11.4 Transformer selection
11.5 Load requirements
11.6 Miscellaneous design considerations
11.7 Installation, field-testing, operation, and maintenance
Annex A (informative) Bibliography
Back cover [Go to Page]

About Us / Careers / support@madcad.com / 1.800.798.9296

MADCAD.com Free Trial

Report To Us

Contact us for a custom quote

⨯To continue with accurate pricing, please select your company type below:

⨯We need your input!

⨯ We need your input!

⨯We need your input!

⨯We need your input!

Cart Warning

IEEE Guide for Switchgear--Unit Substation--Requirements (Published), 2020

⨯To continue with accurate pricing,
please select your company type below: