Impact Transient Characteristics and Selection Method of Voltage Transformer Fuse

Ke Wang, Hongwen Liu, Qing Yang, Lu Yin and Jisheng Huang
Additional contact information
Ke Wang: Electric Power Research Institute of Yunnan Electric Power Corporation, Yunnan 650217, China
Hongwen Liu: Electric Power Research Institute of Yunnan Electric Power Corporation, Yunnan 650217, China
Qing Yang: State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
Lu Yin: State Key Laboratory of Power Transmission Equipment & System Security and New Technology, Chongqing University, Chongqing 400044, China
Jisheng Huang: Lincang Power Supply Company of Yunnan Electric Power Corporation, Yunnan 677000, China

Energies, 2019, vol. 12, issue 4, 1-13

Abstract: In a neutral ungrounded system, the high voltage fuses used to protect voltage transformers (VTs) often abnormally blow out, causing unbalanced VT operation. Fuses also fail to blow out in time, resulting in further damage to the VT. This paper reported the results of steady-state current testing, breaking characteristics, X-ray measurements, fuse corona testing, and electromagnetic transient impact testing for VT fuses. This paper comprehensively examines and analyzes the quality and electrical performance of VT fuses and provides new guidance for the use of high voltage fuses in voltage transformers. This paper recommends that 35 and 10 kV systems use fuses rated for a current of 1 A based on a single fuse, which is not easily oxidized and has a wound skeleton composed of an Ag or Ni melt.

Keywords: voltage transformer; ferromagnetic resonance; fuse; selection (search for similar items in EconPapers)
JEL-codes: Q Q0 Q4 Q40 Q41 Q42 Q43 Q47 Q48 Q49 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations:

Downloads: (external link)
https://www.mdpi.com/1996-1073/12/4/737/pdf (application/pdf)
https://www.mdpi.com/1996-1073/12/4/737/ (text/html)

Related works:
This item may be available elsewhere in EconPapers: Search for items with the same title.

Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text

Persistent link: https://EconPapers.repec.org/RePEc:gam:jeners:v:12:y:2019:i:4:p:737-:d:208436

Access Statistics for this article

Energies is currently edited by Ms. Agatha Cao

More articles in Energies from MDPI
Bibliographic data for series maintained by MDPI Indexing Manager ().