IEEE C57.12.11-1980
Superseded
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
A superseded Standard is one, which is fully replaced by another Standard, which is a new edition of the same Standard.
IEEE Guide for Installation of Oil-Immersed Transformers (10 MVA and Larger, 69-287 kV Rating)
15-10-2021
English
07-11-1980
1 Scope and introduction
2 Inspection on receipt
3 Internal inspection
3.1 Atmospheric conditions
3.2 Oil filling before opening tank
3.3 Oil filling before opening tank - alternate method
3.4 Special considerations for different types of tanks
3.5 Inspection
4 Handling
4.1 Complete transformer
4.2 Lifting with slings
4.3 Raising with jacks
5 Assembly of fittings
5.1 General
5.2 Bushings
5.3 Heat exchangers and piping
5.4 Other accessories
6 Vacuum treatment
6.1 Preparation
6.2 Vacuum treatment
7 Filling with oil
7.1 Checking oil
7.2 Vacuum filling
8 Tests
9 Field drying
9.1 Method 1 - circulating hot oil
9.2 Method 2 - short-circuited windings, vacuum
9.3 Method 3 - using high vacuum
9.4 Method 4 - using hot air
9.5 Completion of the drying
Figure
1 Moisture equilibrium chart
Table
1 Vacuum-pressure conversions
Important note : All end users must be registered with an Account prior to user licenses being assigned.Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.