IEC 60740-1:2005
Laminations for transformers and inductors - Part 1: Mechanical and electrical characteristics
Abstract
IEC 60740-1:2005 specifies the characteristics of laminations. Their preferred use is cores for transformers and inductors. The laminations are made of sheets and strips of magnetic materials, specified in IEC 60404-8-4 and IEC 60404-8-7. The main changes are listed below:
a) ranges with lamination strips YS, YSUI 1, YSUI 2 and laminations YEE 2-..L added;
b) range YEI 1 extended at the above end;
c) ranges YED 2, YEF 2, YEL 2, YES 2, Type YM 1-5a and YM 1-7a cancelled;
d) national designations cancelled;
e) electrical characteristics for the laminations specified;
f) mechanical characteristics for laminations added;
g) holes added for lamination types YEI 1, YUI 1, YUI 2, YM 1;
h) in Annex A, a conversion of the polarisation J and the field strength H in a specific total apparent power is defined. For the characteristics of the reactive power and the power loss, equations and constants are specified.
a) ranges with lamination strips YS, YSUI 1, YSUI 2 and laminations YEE 2-..L added;
b) range YEI 1 extended at the above end;
c) ranges YED 2, YEF 2, YEL 2, YES 2, Type YM 1-5a and YM 1-7a cancelled;
d) national designations cancelled;
e) electrical characteristics for the laminations specified;
f) mechanical characteristics for laminations added;
g) holes added for lamination types YEI 1, YUI 1, YUI 2, YM 1;
h) in Annex A, a conversion of the polarisation J and the field strength H in a specific total apparent power is defined. For the characteristics of the reactive power and the power loss, equations and constants are specified.
Additional information
Publication type | International Standard |
---|---|
Publication date | 2005-08-09 |
Edition | 1.0 |
Available language(s) | English, English/French |
TC/SC | TC 51 - Magnetic components, ferrite and magnetic powder materialsrss |
ICS | 29.100.10 - Magnetic components |
Stability date | 2030 |
Pages | 119 |
File size | 2072 KB |
The following test report forms are related:
Share your publications
Learn how to share your publications with your colleagues, using networking options.
Payment information
Our prices are in Swiss francs (CHF). We accept all major credit cards (American Express, Mastercard and Visa, JCB and CUP), PayPal and bank transfers as form of payment.
Keep in touch
Keep up to date with new publication releases and announcements with our free IEC Just Published email newsletter.
Contact customer services
Please send your enquiry by email or call us on +41 22 919 02 11 between 09:00 – 16:00 CET Monday to Friday.