IET
Decrease font size
Increase font size
Topic Title: HV Transformer
Topic Summary: Purpose of mentioning CT burden with Winding Temperature
Created On: 11 October 2013 07:31 AM
Status: Read Only
Linear : Threading : Single : Branch
Search Topic Search Topic
Topic Tools Topic Tools
View similar topics View similar topics
View topic in raw text format. Print this topic.
 11 October 2013 07:31 AM
User is offline View Users Profile Print this message



vvvviswavijay

Posts: 39
Joined: 11 September 2003

Hi Experts,

Good Day

I wish to know why in all HV transformers above 11 kV, they mention in CT burden along with WTI?

I do understand the purpose of CT's. But why they mention the burden for WTI in another core?

I need to know how it helps?

Best Regards
Vj
 12 October 2013 10:19 AM
User is offline View Users Profile Print this message



statter

Posts: 118
Joined: 06 February 2013

.... It could be that this is designed for the more sophisticated type of WTI that estimates the peak wing temp. These take a CT input

see e.g. http://www.ash-eng.co.uk/produ...emperature-indication/
 24 October 2013 04:25 AM
User is offline View Users Profile Print this message



vvvviswavijay

Posts: 39
Joined: 11 September 2003

Thank you statter for your inputs.

still need more clarification why they connect HV CT and WTI for measuring WTI?

IS it anything related to change in resistance with every degree of temperature is related to current flow?

Best Regards
Vj

 24 October 2013 09:29 PM
User is offline View Users Profile Print this message



statter

Posts: 118
Joined: 06 February 2013

yes its an observer (in control terms) of WT rather than an actual measure.
IET » Energy » HV Transformer

Topic Tools Topic Tools
Statistics

See Also:



FuseTalk Standard Edition v3.2 - © 1999-2014 FuseTalk Inc. All rights reserved.