Shopping Cart

No products in the cart.

IEEE C57.12.20 2005

$37.38

Standard for Overhead Type Distribution Transformers, 500 kVA and Smaller: High Voltage, 34500 Volts and Below; Low Voltage, 7970/13800Y Volts and Below

Published By Publication Date Number of Pages
IEEE 2005 48
Guaranteed Safe Checkout
Category:

If you have any questions, feel free to reach out to our online customer service team by clicking on the bottom right corner. Weā€™re here to assist you 24/7.
Email:[email protected]

Revision Standard – Inactive – Superseded. This standard covers certain electrical, dimensional, and mechanical characteristics and safety features of single- and three-phase, 60 Hz, mineral-oil-immersed, self-cooled, overhead-type distribution transformers 500 kVA and smaller, high voltages 34 500 V and below and low voltages 7970/13 800Y V and below.

PDF Catalog

PDF Pages PDF Title
1 Front Cover
3 IEEE Standard for Overhead-Type Distribution Transformers, 500 kVA and Smaller: High Voltage, 34 500 V and Below; Low Voltage, 7970/13 800Y V and Below
5 Introduction
6 Notice to users
Errata
Interpretations
Patents
Participants
8 CONTENTS
9 IEEE Standard for Overhead-Type Distribution Transformers, 500 kVA and Smaller: High Voltage, 34 500 V and Below; Low Voltage, 7970/13 800Y V and Below
1. Overview
1.1 Scope
1.2 Purpose
2. Normative references
10 3. Definitions
4. Ratings
4.1 Kilovolt-ampere ratings
4.2 Voltage ratings and tap ratings
11 5. Basic lightning impulse insulation levels and dielectric tes
5.1 Basic lightning impulse
5.2 Dielectric test
6. Tests
6.1 General
6.2 Dielectric tests
7. Construction
7.1 Bushings and Terminals
12 7.2 Accessory equipment
15 7.3 Polarity, terminal markings, and angular displacement
16 7.4 Oil preservation
7.5 Tanks
18 8. Storage and installation
8.1 Storage
8.2 Installation
9. Design tests for fault current capability of overhead distri
9.1 Objective
9.2 General requirements
19 9.3 Tests
9.4 Test number 1ā€”an arcing fault in an enclosure
9.5 Test number 2ā€”for enclosures with internal fusible elements
20 9.6 Test results
42 Annex A (informative) Auxiliary Mounting Devices
48 Annex B (informative) Bibliography
IEEE C57.12.20 2005
$37.38