NDLI: High power hybrid contactor for electrical test application

Content Provider	IEEE Xplore Digital Library
Author	Panda, Rajesh Kumar Veeramalla, Jitendar
Copyright Year	2014
Description	Author affiliation: SDDC, Larsen and Toubro Limited Powai, Mumbai, India (Panda, Rajesh Kumar; Veeramalla, Jitendar)
Abstract	It's been a practice to use a back up contactor in addition to master contactor to evaluate the electrical life of the test contactor for AC-3 utilisation category. It is expected that the life of the test contactor is in few millions, which the back — up contactor may not be able to support as during each make — break operation there is heavy erosion of contact material due to arcing. It demands frequent maintenance or even replacement of the back — up contactor to complete the AC-3 electrical life test. The paper reveals about the development of a test set up to perform AC-3 electrical life test upon the test contactor using a high power hybrid back up contactor which will provide millions of arc less switching. At the outset it explains about the control & power circuit and then discuss in detail about the prototype development and performance evaluation of the test set up done upon the test contactor. The test results reveal about arc less breaking operation of the hybrid contactor at 415V, 2.1kA, 50Hz, 0.35 power factors with no pit marks, crater formation and contact erosion. It is expected to complete millions of operations.
Starting Page	1
Ending Page	6
File Size	4048176
Page Count	6
File Format	PDF
e-ISBN	9781479960682
DOI	10.1109/HOLM.2014.7031060
Language	English
Publisher	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Publisher Date	2014-10-12
Publisher Place	USA
Access Restriction	Subscribed
Rights Holder	Institute of Electrical and Electronics Engineers, Inc. (IEEE)
Subject Keyword	Contacts Surface morphology Switches Hybrid power systems Maintenance engineering Switching circuits Pulse transformers TRV arcing pitting crater SCR electromechanical contactor hybrid contactor AC-3 Electrical life test backup contactor microcontroller self commutation snubber pulse transformer optocoupler gate MOSFET
Content Type	Text
Resource Type	Article

Sl.	Authority	Responsibilities	Communication Details
1	Ministry of Education (GoI), Department of Higher Education	Sanctioning Authority	https://www.education.gov.in/ict-initiatives
2	Indian Institute of Technology Kharagpur	Host Institute of the Project: The host institute of the project is responsible for providing infrastructure support and hosting the project	https://www.iitkgp.ac.in
3	National Digital Library of India Office, Indian Institute of Technology Kharagpur	The administrative and infrastructural headquarters of the project	Dr. B. Sutradhar bsutra@ndl.gov.in
4	Project PI / Joint PI	Principal Investigator and Joint Principal Investigators of the project	Dr. B. Sutradhar bsutra@ndl.gov.in Prof. Saswat Chakrabarti will be added soon
5	Website/Portal (Helpdesk)	Queries regarding NDLI and its services	support@ndl.gov.in
6	Contents and Copyright Issues	Queries related to content curation and copyright issues	content@ndl.gov.in
7	National Digital Library of India Club (NDLI Club)	Queries related to NDLI Club formation, support, user awareness program, seminar/symposium, collaboration, social media, promotion, and outreach	clubsupport@ndl.gov.in
8	Digital Preservation Centre (DPC)	Assistance with digitizing and archiving copyright-free printed books	dpc@ndl.gov.in
9	IDR Setup or Support	Queries related to establishment and support of Institutional Digital Repository (IDR) and IDR workshops	idr@ndl.gov.in

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